10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

__________________________________________________ 

FORM 10-Q

 __________________________________________________

ý QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2014

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission file number 001-34057

__________________________________________________

AMERICAN CAPITAL AGENCY CORP.

(Exact name of registrant as specified in its charter)

__________________________________________________

Delaware	26-1701984
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)

2 Bethesda Metro Center, 14th Floor

Bethesda, Maryland 20814

(Address of principal executive offices)

(301) 968-9300

(Registrant’s telephone number, including area code)

 __________________________________________________

Indicate by check mark whether the registrant (1) has filed all reports to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter earlier period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See definition of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý		Accelerated filer	¨
Non-accelerated filer	¨	(Do not check if a smaller reporting company)	Smaller Reporting Company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

The number of shares of the issuer's common stock, $0.01 par value, outstanding as of April 30, 2014 was 352,788,707.

AMERICAN CAPITAL AGENCY CORP.

TABLE OF CONTENTS

PART I.	FINANCIAL INFORMATION
Item 1.	Financial Statements	2
Item 2.	Management's Discussion and Analysis of Financial Condition and Results of Operations	24
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	45
Item 4.	Controls and Procedures	49
PART II.	OTHER INFORMATION
Item 1.	Legal Proceedings	50
Item 1A.	Risk Factors	50
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	50
Item 3.	Defaults upon Senior Securities	50
Item 4.	Mine Safety Disclosures	50
Item 5.	Other Information	50
Item 6.	Exhibits	50
Signatures		52

1

PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

AMERICAN CAPITAL AGENCY CORP.

CONSOLIDATED BALANCE SHEETS

(in millions, except per share data)

	March 31, 2014			December 31, 2013
	(Unaudited)
Assets:
Agency securities, at fair value (including pledged securities of $51,850 and $62,205, respectively)	$	54,960		$	64,482
Agency securities transferred to consolidated variable interest entities, at fair value (pledged securities)	1,417			1,459
U.S. Treasury securities, at fair value (including pledged securities of $196 and $3,778, respectively)	196			3,822
REIT equity securities, at fair value	352			237
Cash and cash equivalents	1,726			2,143
Restricted cash	269			101
Derivative assets, at fair value	686			1,194
Receivable for securities sold (including pledged securities of $772 and $622, respectively)	799			652
Receivable under reverse repurchase agreements	6,685			1,881
Other assets	228			284
Total assets	$	67,318		$	76,255
Liabilities:
Repurchase agreements	$	49,729		$	63,533
Debt of consolidated variable interest entities, at fair value	874			910
Payable for securities purchased	324			118
Derivative liabilities, at fair value	417			422
Dividends payable	232			235
Obligation to return securities borrowed under reverse repurchase agreements, at fair value	6,658			1,848
Accounts payable and other accrued liabilities	270			492
Total liabilities	58,504			67,558
Stockholders' equity:
Preferred stock - $0.01 par value; 10.0 shares authorized:
8.000% Series A Cumulative Redeemable Preferred Stock; 6.9 shares issued and outstanding (aggregate liquidation preference of $173)	167			167
Common stock - $0.01 par value; 600.0 shares authorized:
352.8 and 356.2 shares issued and outstanding, respectively	4			4
Additional paid-in capital	10,332			10,406
Retained deficit	(870		)	(497		)
Accumulated other comprehensive (loss) income	(819		)	(1,383		)
Total stockholders' equity	8,814			8,697
Total liabilities and stockholders' equity	$	67,318		$	76,255

See accompanying notes to consolidated financial statements.

2

AMERICAN CAPITAL AGENCY CORP.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

(in millions, except per share data)

	Three months ended March 31,
	2014			2013
Interest income:
Interest income	$	399		$	547
Interest expense	108			140
Net interest income	291			407
Other loss, net:
Loss on sale of agency securities, net	(19		)	(26		)
Loss on derivative instruments and other securities, net	(378		)	(98		)
Total other loss, net	(397		)	(124		)
Expenses:
Management fees	29			33
General and administrative expenses	6			9
Total expenses	35			42
Loss (income) before income tax	(141		)	241
Provision for income tax, net	—			10
Net loss (income)	(141		)	231
Dividend on preferred stock	3			3
Net (loss) income (attributable) available to common shareholders	$	(144	)	$	228
Net (loss) income	$	(141	)	$	231
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	521			(837		)
Unrealized gain on derivative instruments, net	43			49
Other comprehensive income (loss)	564			(788		)
Comprehensive income (loss)	423			(557		)
Dividend on preferred stock	3			3
Comprehensive income (loss) available (attributable) to common shareholders	$	420		$	(560	)
Weighted average number of common shares outstanding - basic and diluted	354.8			356.2
Net (loss) income per common share - basic and diluted	$	(0.41	)	$	0.64
Comprehensive income (loss) per common share - basic and diluted	$	1.18		$	(1.57	)
Dividends declared per common share	$	0.65		$	1.25

See accompanying notes to consolidated financial statements.

3

AMERICAN CAPITAL AGENCY CORP.

CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY

(Unaudited)

(in millions)

	Preferred Stock			Common Stock				Additional Paid-in Capital			Retained (Deficit)Earnings			Accumulated Other Comprehensive Income (Loss)			Total
	Shares	Amount		Shares		Amount
Balance, December 31, 2012	6.9	$	167	338.9		$	3	$	9,460		$	(289	)	$	1,555		$	10,896
Net income	—	—		—		—		—			231			—			231
Other comprehensive (loss) income:
Unrealized loss on available-for-sale securities, net	—	—		—		—		—			—			(837		)	(837		)
Unrealized gain on derivative instruments, net	—	—		—		—		—			—			49			49
Issuance of common stock	—	—		57.6		1		1,801			—			—			1,802
Preferred dividends declared	—	—		—		—		—			(3		)	—			(3		)
Common dividends declared	—	—		—		—		—			(496		)	—			(496		)
Balance, March 31, 2013	6.9	$	167	396.5		$	4	$	11,261		$	(557	)	$	767		$	11,642
Balance, December 31, 2013	6.9	$	167	356.2		$	4	$	10,406		$	(497	)	$	(1,383	)	$	8,697
Net loss	—	—		—		—		—			(141		)	—			(141		)
Other comprehensive income:
Unrealized gain on available-for-sale securities, net	—	—		—		—		—			—			521			521
Unrealized gain on derivative instruments, net	—	—		—		—		—			—			43			43
Repurchase of common stock	—	—		(3.4	)	—		(74		)	—			—			(74		)
Preferred dividends declared	—	—		—		—		—			(3		)	—			(3		)
Common dividends declared	—	—		—		—		—			(229		)	—			(229		)
Balance, March 31, 2014	6.9	$	167	352.8		$	4	$	10,332		$	(870	)	$	(819	)	$	8,814

See accompanying notes to consolidated financial statements.

4

AMERICAN CAPITAL AGENCY CORP.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

(in millions)

	Three months ended March 31,
	2014			2013
Operating activities:
Net (loss) income	$	(141	)	$	231
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of agency securities premiums and discounts, net	142			134
Amortization of accumulated other comprehensive loss on interest rate swaps de-designated as qualifying hedges	43			49
Loss on sale of agency securities, net	19			26
Loss on derivative instruments and other securities, net	378			98
Decrease in other assets	60			19
Decrease in accounts payable and other accrued liabilities	(13		)	(39		)
Net cash provided by operating activities	488			518
Investing activities:
Purchases of agency securities	(1,403		)	(15,294		)
Proceeds from sale of agency securities	9,545			19,568
Principal collections on agency securities	1,853			2,634
Purchases of U.S. Treasury securities	(4,343		)	(9,222		)
Proceeds from sale of U.S. Treasury securities	12,807			10,001
Net payments on reverse repurchase agreements	(4,804		)	(473		)
Net proceeds from (payments on) other derivative instruments	58			(329		)
Purchases of REIT equity securities	(204		)	—
Proceeds from sale of REIT equity securities	86			—
Increase in restricted cash	(168		)	(100		)
Other investing cash flows, net	(183		)	—
Net cash provided by investing activities	13,244			6,785
Financing activities:
Proceeds from repurchase arrangements	79,314			96,511
Repayments on repurchase agreements	(93,118		)	(104,729		)
Repayments on debt of consolidated variable interest entities	(36		)	(64		)
Net proceeds from common stock issuances	—			1,802
Payments for common stock repurchases	(74		)	—
Cash dividends paid	(235		)	(427		)
Net cash used in financing activities	(14,149		)	(6,907		)
Net change in cash and cash equivalents	(417		)	396
Cash and cash equivalents at beginning of period	2,143			2,430
Cash and cash equivalents at end of period	$	1,726		$	2,826

See accompanying notes to consolidated financial statements.

5

AMERICAN CAPITAL AGENCY CORP.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

Note 1. Unaudited Interim Consolidated Financial Statements

The unaudited interim consolidated financial statements of American Capital Agency Corp. (referred throughout this report as the "Company", "we", "us" and "our") are prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Our unaudited interim consolidated financial statements include the accounts of our wholly-owned subsidiary, American Capital Agency TRS, LLC, and variable interest entities for which the Company is the primary beneficiary. Significant intercompany accounts and transactions have been eliminated. In the opinion of management, all adjustments, consisting solely of normal recurring accruals, necessary for the fair presentation of financial statements for the interim period have been included. The current period’s results of operations are not necessarily indicative of results that ultimately may be achieved for the year.

Note 2. Organization

We were organized in Delaware on January 7, 2008, and commenced operations on May 20, 2008 following the completion of our initial public offering ("IPO"). Our common stock is traded on The NASDAQ Global Select Market under the symbol "AGNC."

We are externally managed by American Capital AGNC Management, LLC (our "Manager"), an affiliate of American Capital, Ltd. ("American Capital").

We operate so as to qualify to be taxed as a real estate investment trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). As a REIT, we are required to distribute annually 90% of our taxable net income. As long as we continue to qualify as a REIT, we will generally not be subject to U.S. federal or state corporate taxes on our taxable net income to the extent that we distribute all of our annual taxable net income to our stockholders. It is our intention to distribute 100% of our taxable net income, after application of available tax attributes, within the limits prescribed by the Internal Revenue Code, which may extend into the subsequent taxable year.

We earn income primarily from investing on a leveraged basis in agency mortgage-backed securities ("agency MBS"). These investments consist of residential mortgage pass-through securities and collateralized mortgage obligations ("CMOs") for which the principal and interest payments are guaranteed by a government-sponsored enterprise, such as the Federal National Mortgage Association ("Fannie Mae") and the Federal Home Loan Mortgage Corporation ("Freddie Mac"), or by a U.S. Government agency, such as the Government National Mortgage Association ("Ginnie Mae") (collectively referred to as "GSEs"). We may also invest in agency debenture securities issued by Freddie Mac, Fannie Mae or the Federal Home Loan Bank ("FHLB") and in other assets reasonably related to agency securities.

Our principal objective is to preserve our net asset value (also referred to as "net book value", "NAV" and "stockholders' equity") while generating attractive risk-adjusted returns for distribution to our stockholders through regular quarterly dividends from the combination of our net interest income and net realized gains and losses on our investments and hedging activities. We fund our investments primarily through short-term borrowings structured as repurchase agreements.

Note 3. Summary of Significant Accounting Policies

Investment Securities

ASC Topic 320, Investments—Debt and Equity Securities ("ASC 320"), requires that at the time of purchase, we designate a security as held-to-maturity, available-for-sale or trading, depending on our ability and intent to hold such security to maturity. Securities classified as trading and available-for-sale are reported at fair value, while securities classified as held-to-maturity are reported at amortized cost. We may sell any of our agency securities as part of our overall management of our investment portfolio. Accordingly, we typically designate our agency securities as available-for-sale. All securities classified as available-for-sale are

6

reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss) ("OCI"), a separate component of stockholders' equity. Upon the sale of a security, we determine the cost of the security and the amount of unrealized gains or losses to reclassify out of accumulated OCI into earnings based on the specific identification method.

Interest-only securities and inverse interest-only securities (collectively referred to as "interest-only securities") represent our right to receive a specified proportion of the contractual interest flows of specific agency CMO securities. Principal-only securities represent our right to receive the contractual principal flows of specific agency CMO securities. Interest and principal-only securities are measured at fair value through earnings in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Our investments in interest and principal-only securities are included in agency securities, at fair value on the accompanying consolidated balance sheets.

REIT equity securities represent investments in the common stock of other publicly traded mortgage REITs that invest predominantly in agency MBS. We designate our investments in REIT equity securities as trading securities and report them at fair value on the accompanying consolidated balance sheets.

We estimate the fair value of our agency securities based on a market approach using "Level 2" inputs from third-party pricing services and non-binding dealer quotes derived from common market pricing methods. Such methods incorporate, but are not limited to, reported trades and executable bid and asked prices for similar securities, benchmark interest rate curves, such as the spread to the U.S. Treasury rate and interest rate swap curves, convexity, duration and the underlying characteristics of the particular security, including coupon, periodic and life caps, rate reset period, issuer, additional credit support and expected life of the security. We estimate the fair value of our REIT equity securities on a market approach using "Level 1" inputs based on quoted market prices. Refer to Note 8 for further discussion of fair value measurements.

We evaluate our agency securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis. The determination of whether a security is other-than-temporarily impaired may involve judgments and assumptions based on subjective and objective factors. When a security is impaired, an OTTI is considered to have occurred if any one of the following three conditions exist as of the financial reporting date: (i) we intend to sell the security (that is, a decision has been made to sell the security), (ii) it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis or (iii) we do not expect to recover the security's amortized cost basis, even if we do not intend to sell the security and it is not more likely than not that we will be required to sell the security. A general allowance for unidentified impairments in a portfolio of securities is not permitted.

If either of the first two conditions exists as of the financial reporting date, the entire amount of the impairment loss, if any, is recognized in earnings as a realized loss and the cost basis of the security is adjusted to its fair value. If the third condition exists, the OTTI is separated into (i) the amount relating to credit loss (the "credit component") and (ii) the amount relating to all other factors (the "non-credit components"). Only the credit component is recognized in earnings, with the non-credit components recognized in OCI. However, in evaluating if the third condition exists, our investments in agency securities typically would not have a credit component since the principal and interest are guaranteed by a GSE and, therefore, any unrealized loss is not the result of a credit loss. In addition, since we designate our agency securities as available-for-sale securities with unrealized gains and losses recognized in OCI, any impairment loss for non-credit components is already recognized in OCI.

The liquidity of the agency securities market allows us to obtain competitive bids and execute on a sale transaction typically within a day of making the decision to sell a security and, therefore, we generally do not make decisions to sell specific agency securities until shortly prior to initiating a sell order. In some instances, we may sell specific agency securities by delivering such securities into existing short to-be-announced ("TBA") contracts. TBA market conventions require the identification of the specific securities to be delivered no later than 48 hours prior to settlement. If we settle a short TBA contract through the delivery of securities, we will generally identify the specific securities to be delivered within one to two days of the 48-hour deadline.

Interest Income

Interest income is accrued based on the outstanding principal amount of the investment securities and their contractual terms. Premiums or discounts associated with the purchase of investment securities are amortized or accreted into interest income, respectively, over the projected lives of the securities, including contractual payments and estimated prepayments using the interest method in accordance with ASC Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs ("ASC 310-20").

We estimate long-term prepayment speeds of our agency securities using a third-party service and market data. The third-party service estimates prepayment speeds using models that incorporate the forward yield curve, current mortgage rates and mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, volatility and other factors. We review the prepayment speeds estimated by the third-party service and compare the results to market consensus prepayment speeds, if available. We also consider historical prepayment speeds and current market conditions to validate the reasonableness of the prepayment speeds estimated by the third-party service and, based on our Manager's judgment, we may make adjustments

7

to its estimates. Actual and anticipated prepayment experience is reviewed quarterly and effective yields are recalculated when differences arise between (i) our previously estimated future prepayments and (ii) the actual prepayments to date plus our currently estimated future prepayments. If the actual and estimated future prepayment experience differs from our prior estimate of prepayments, we are required to record an adjustment in the current period to the amortization or accretion of premiums and discounts for the cumulative difference in the effective yield through the reporting date.

Derivative Instruments

We use a variety of derivative instruments to hedge a portion of our exposure to market risks, including interest rate risk, prepayment risk and extension risk. The objective of our risk management strategy is to reduce fluctuations in net book value over a range of interest rate scenarios. In particular, we attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates. The principal instruments that we use are interest rate swaps and options to enter into interest rate swaps ("swaptions"). We also utilize forward contracts for the purchase or sale of agency MBS securities on a generic pool basis, or a TBA contract, and on a non-generic, specified pool basis, and we utilize U.S. Treasury securities and U.S. Treasury futures contracts, primarily through short sales. We may also purchase or write put or call options on TBA securities and we may invest in other types of mortgage derivatives, such as interest and principal-only securities.

We may also enter into TBA contracts as a means of investing in and financing agency securities (thereby increasing our "at risk" leverage) or as a means of disposing of or reducing our exposure to agency securities (thereby reducing our "at risk" leverage). Pursuant to TBA contracts, we agree to purchase or sell, for future delivery, agency securities with certain principal and interest terms and certain types of collateral, but the particular agency securities to be delivered are not identified until shortly before the TBA settlement date. We also may choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a "pair off"), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA contract for a later settlement date. This transaction is commonly referred to as a "dollar roll." The agency securities purchased or sold for a forward settlement date are typically priced at a discount to agency securities for settlement in the current month. This difference (or discount) is referred to as the "price drop." The price drop is the economic equivalent of net interest carry income on the underlying agency securities over the roll period (interest income less implied financing cost) and is commonly referred to as "dollar roll income/loss." Consequently, forward purchases of agency securities and dollar roll transactions represent a form of off-balance sheet financing.

We account for derivative instruments in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). ASC 815 requires an entity to recognize all derivatives as either assets or liabilities in the balance sheet and to measure those instruments at fair value.

Our derivative agreements generally contain provisions that allow for netting or setting off derivative assets and liabilities with the counterparty; however, we report related assets and liabilities on a gross basis in our consolidated balance sheets. Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in our consolidated balance sheets. Changes in fair value of derivative instruments and periodic settlements related to our derivative instruments are recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Cash receipts and payments related to derivative instruments are classified in our consolidated statements of cash flows according to the underlying nature or purpose of the derivative transaction, generally in the investing section.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. We attempt to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings, monitoring positions with individual counterparties and adjusting posted collateral as required.

Discontinuation of hedge accounting for interest rate swap agreements

Prior to September 30, 2011, we entered into interest rate swap agreements typically with the intention of qualifying for hedge accounting under ASC 815. However, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps. Upon discontinuation of hedge accounting, the net deferred loss related to our de-designated interest rate swaps remained in accumulated OCI and is being reclassified from accumulated OCI into interest expense on a straight-line basis over the remaining term of each interest rate swap.

Interest rate swap agreements

We use interest rate swaps to hedge the variable cash flows associated with borrowings made under our repurchase agreement facilities. Under our interest rate swap agreements, we typically pay a fixed rate and receive a floating rate based on one, three or six-month LIBOR ("payer swaps") with terms up to 20 years. The floating rate we receive under our swap agreements has the

8

effect of offsetting the repricing characteristics of our repurchase agreements and cash flows on such liabilities. Our swap agreements are privately negotiated in the over−the−counter ("OTC") market and may be centrally cleared through a registered commodities exchange ("centrally cleared swaps").

We estimate the fair value of our centrally cleared interest rate swaps using the daily settlement price determined by the respective exchange. Centrally cleared swaps are valued by the exchange using a pricing model that references the underlying rates including the overnight index swap rate and LIBOR forward rate to produce the daily settlement price.

We estimate the fair value of our "non-centrally cleared" swaps using a combination of inputs from counterparty and third-party pricing models to estimate the net present value of the future cash flows using the forward interest rate yield curve in effect as of the end of the measurement period. We also incorporate both our own and our counterparties' nonperformance risk in estimating the fair value of our interest rate swaps. In considering the effect of nonperformance risk, we consider the impact of netting and credit enhancements, such as collateral postings and guarantees, and have concluded that our own and our counterparty risk is not significant to the overall valuation of these agreements.

Interest rate swaptions

We purchase interest rate swaptions to help mitigate the potential impact of larger increases or decreases in interest rates on the performance of our investment portfolio (referred to as "convexity risk"). The interest rate swaptions provide us the option to enter into an interest rate swap agreement for a predetermined notional amount, stated term and pay and receive interest rates in the future. Our swaption agreements typically provide us the option to enter into a pay fixed rate interest rate swap, which we refer as "payer swaptions." We may also enter into swaption agreements that provide us the option to enter into a receive fixed interest rate swap, which we refer to as "receiver swaptions." The premium paid for interest rate swaptions is reported as an asset in our consolidated balance sheets. The premium is valued at an amount equal to the fair value of the swaption that would have the effect of closing the position adjusted for nonperformance risk, if any. The difference between the premium and the fair value of the swaption is reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. If a swaption expires unexercised, the realized loss on the swaption would be equal to the premium paid. If we sell or exercise a swaption, the realized gain or loss on the swaption would be equal to the difference between the cash or the fair value of the underlying interest rate swap received and the premium paid.

Our interest rate swaption agreements are privately negotiated in the OTC market and are not subject to central clearing. We estimate the fair value of interest rate swaptions using a combination of inputs from counterparty and third-party pricing models based on the fair value of the future interest rate swap that we have the option to enter into as well as the remaining length of time that we have to exercise the option, adjusted for non-performance risk, if any.

TBA securities

A TBA security is a forward contract for the purchase ("long position") or sale ("short position") of agency MBS at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific agency MBS delivered into the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We may enter into TBA contracts as a means of hedging against short-term changes in interest rates. We may also enter into TBA contracts as a means of acquiring or disposing of agency securities and we may from time to time utilize TBA dollar roll transactions to finance agency MBS purchases.

We account for TBA contracts as derivative instruments since either the TBA contracts do not settle in the shortest period of time possible or we cannot assert that it is probable at inception and throughout the term of the TBA contract that we will take physical delivery of the agency security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions. Gains, losses and dollar roll income associated with our TBA contracts and dollar roll transactions are recognized in our consolidated statements of comprehensive income in gain (loss) on derivative instruments and other securities, net.

We estimate the fair value of TBA securities based on similar methods used to value our agency MBS securities.

U.S. Treasury securities

We purchase or sell short U.S. Treasury securities and U.S. Treasury futures contracts to help mitigate the potential impact of changes in interest rates on the performance of our portfolio. We borrow securities to cover short sales of U.S. Treasury securities under reverse repurchase agreements. We account for these as securities borrowing transactions and recognize an obligation to return the borrowed securities at fair value on the balance sheet based on the value of the underlying borrowed securities as of the reporting date. Gains and losses associated with purchases and short sales of U.S. Treasury securities and U.S. Treasury futures

9

contracts are recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

Note 4. Investment Securities

As of March 31, 2014, we had agency MBS of $56.4 billion at fair value, with a total cost basis of $56.9 billion. The net unamortized premium balance on our agency MBS as of March 31, 2014 was $2.6 billion, including interest and principal-only strips. The following tables summarize our investments in agency MBS as of March 31, 2014 (dollars in millions):

	March 31, 2014
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	42,131		$	11,730		$	209		$	54,070
Unamortized discount	(17		)	(6		)	—			(23		)
Unamortized premium	1,887			573			6			2,466
Amortized cost	44,001			12,297			215			56,513
Gross unrealized gains	238			93			4			335
Gross unrealized losses	(646		)	(257		)	—			(903		)
Total available-for-sale agency MBS, at fair value	43,593			12,133			219			55,945
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	386			29			—			415
Gross unrealized gains	20			4			—			24
Gross unrealized losses	(6		)	(1		)	—			(7		)
Total agency MBS remeasured at fair value through earnings	400			32			—			432
Total agency MBS, at fair value	$	43,993		$	12,165		$	219		$	56,377
Weighted average coupon as of March 31, 2014 2	3.62		%	3.75		%	3.54		%	3.65		%
Weighted average yield as of March 31, 2014 3	2.70		%	2.82		%	1.66		%	2.72		%
Weighted average yield for the quarter ended March 31, 2014 3	2.53		%	2.61		%	1.67		%	2.54		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.3 billion and the weighted average contractual interest we are entitled to receive was 5.49% of this amount as of March 31, 2014. The par value of our principal-only agency MBS strips was $265 million as of March 31, 2014.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of March 31, 2014.

3. Incorporates a weighted average future constant prepayment rate assumption of 8% based on forward rates as of March 31, 2014.

	March 31, 2014
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	54,056	$	307	$	(902	)	$	53,461
Adjustable rate	1,176		19		—			1,195
CMO	1,281		9		(1		)	1,289
Interest-only and principal-only strips	415		24		(7		)	432
Total agency MBS	$	56,928	$	359	$	(910	)	$	56,377

10

As of December 31, 2013, we had agency MBS of $65.9 billion at fair value, with a total cost basis of $67.0 billion. The net unamortized premium balance on our agency MBS as of December 31, 2013 was $3.0 billion, including interest and principal-only strips. The following tables summarize our investments in agency MBS as of December 31, 2013 (dollars in millions):

	December 31, 2013
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	50,914		$	12,640		$	223		$	63,777
Unamortized discount	(25		)	(7		)	—			(32		)
Unamortized premium	2,210			631			7			2,848
Amortized cost	53,099			13,264			230			66,593
Gross unrealized gains	181			74			5			260
Gross unrealized losses	(991		)	(358		)	—			(1,349		)
Total available-for-sale agency MBS, at fair value	52,289			12,980			235			65,504
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	400			32			—			432
Gross unrealized gains	13			3			—			16
Gross unrealized losses	(9		)	(2		)	—			(11		)
Total agency MBS remeasured at fair value through earnings	404			33			—			437
Total agency MBS, at fair value	$	52,693		$	13,013		$	235		$	65,941
Weighted average coupon as of December 31, 2013 2	3.53		%	3.78		%	3.56		%	3.58		%
Weighted average yield as of December 31, 2013 3	2.66		%	2.87		%	1.66		%	2.70		%
Weighted average yield for the year ended December 31, 2013 3	2.74		%	2.87		%	1.79		%	2.77		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.4 billion and the weighted average contractual interest we are entitled to receive was 5.50% of this amount as of December 31, 2013. The par value of our principal-only agency MBS strips was $271 million as of December 31, 2013.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of December 31, 2013.

3. Incorporates a weighted average future constant prepayment rate assumption of 7% based on forward rates as of December 31, 2013.

	December 31, 2013
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	64,057	$	242	$	(1,338	)	$	62,961
Adjustable rate	1,223		15		(3		)	1,235
CMO	1,313		3		(8		)	1,308
Interest-only and principal-only strips	432		16		(11		)	437
Total agency MBS	$	67,025	$	276	$	(1,360	)	$	65,941

The actual maturities of our agency MBS are generally shorter than the stated contractual maturities. Actual maturities are affected by the contractual lives of the underlying mortgages, periodic contractual principal payments and principal prepayments. As of March 31, 2014 and December 31, 2013, our weighted average expected constant prepayment rate ("CPR") over the remaining life of our aggregate agency MBS portfolio was 8% and 7%, respectively. Our estimates differ materially for different types of securities and thus individual holdings have a wide range of projected CPRs. We estimate long-term prepayment assumptions for different securities using a third-party service and market data. The third-party service estimates prepayment speeds using models that incorporate the forward yield curve, current mortgage rates and mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, volatility and other factors. We review the prepayment speeds estimated by the third-party service and compare the results to market consensus prepayment speeds, if available. We also consider historical prepayment speeds and current market conditions to validate reasonableness. As market conditions may change rapidly, we may make

11

adjustments for different securities based on our Manager's judgment. Various market participants could use materially different assumptions.

The following table summarizes our agency MBS classified as available-for-sale as of March 31, 2014 and December 31, 2013 according to their estimated weighted average life classification (dollars in millions):

	March 31, 2014						December 31, 2013
Estimated Weighted Average Life of Agency MBS Classified as Available-for-Sale 1	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield
≤ 1 year	$	27	$	25	2.49%	1.81%	$	129	$	129	3.07%	2.53%
> 1 year and ≤ 3 years	191		186		4.86%	3.29%	498		491		4.08%	2.25%
> 3 years and ≤ 5 years	22,947		22,758		3.55%	2.53%	24,471		24,342		3.59%	2.57%
> 5 years and ≤10 years	32,534		33,284		3.51%	2.80%	38,522		39,635		3.39%	2.73%
> 10 years	246		260		3.61%	2.87%	1,884		1,996		3.66%	2.96%
Total	$	55,945	$	56,513	3.53%	2.70%	$	65,504	$	66,593	3.47%	2.68%

 _______________________

1. Excludes interest and principal-only strips.

The weighted average life of our interest-only strips was 6.2 and 6.3 years as of March 31, 2014 and December 31, 2013, respectively. The weighted average life of our principal-only strips was 8.3 and 8.6 years as of March 31, 2014 and December 31, 2013, respectively.

Our agency securities classified as available-for-sale are reported at fair value, with unrealized gains and losses excluded from earnings and reported in accumulated OCI. The following table summarizes changes in accumulated OCI, a separate component of stockholders' equity, for our available-for-sale securities for the three months endedMarch 31, 2014 and 2013 (in millions):

Agency Securities Classified as Available-for-Sale	Beginning Accumulated OCI Balance			Unrealized Gains and (Losses), Net		Reversal of  Unrealized (Gains) and Losses, Net on Realization	Ending Accumulated OCI Balance
Three months ended March 31, 2014	$	(1,087	)	502		19	$	(566	)
Three months ended March 31, 2013	$	2,040		(863	)	26	$	1,203

The following table presents the gross unrealized loss and fair values of our available-for-sale agency securities by length of time that such securities have been in a continuous unrealized loss position as of March 31, 2014 and December 31 and March 31, 2013 (in millions):

	Unrealized Loss Position For
	Less than 12 Months					12 Months or More					Total
Agency Securities Classified as Available-for-Sale	Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss
March 31, 2014	$	22,112	$	(442	)	$	8,673	$	(461	)	$	30,785	$	(903	)
December 31, 2013	$	42,853	$	(1,248	)	$	1,586	$	(101	)	$	44,439	$	(1,349	)
March 31, 2013	$	25,963	$	(174	)	$	84	$	(2	)	$	26,047	$	(176	)

As of March 31, 2014 and 2013, a decision had not been made to sell any of these agency securities and we do not believe it is more likely than not we will be required to sell the agency securities before recovery of their amortized cost basis. The unrealized losses on these agency securities are not due to credit losses given the GSE guarantees, but are rather due to changes in interest rates and prepayment expectations. Accordingly, we did not recognize any OTTI charges on our investment securities for the three months endedMarch 31, 2014 and 2013. However, as we continue to actively manage our portfolio, we may recognize additional realized losses on our agency securities upon selecting specific securities to sell.

12

Gains and Losses

The following table is a summary of our net gain (loss) from the sale of agency securities classified as available-for-sale for the three months endedMarch 31, 2014 and 2013 (in millions): 

	Three Months Ended
Agency Securities Classified as Available-for-Sale	March 31, 2014			March 31, 2013
Agency MBS sold, at cost	$	(9,711	)	$	(20,328	)
Proceeds from agency MBS sold 1	9,692			20,302
Net loss on sale of agency MBS	$	(19	)	$	(26	)
Gross gain on sale of agency MBS	$	42		$	87
Gross loss on sale of agency MBS	(61		)	(113		)
Net loss on sale of agency MBS	$	(19	)	$	(26	)

  ________________________

1. Proceeds include cash received during the period, plus receivable for agency MBS sold during the period as of period end.

For the three months endedMarch 31, 2014 and 2013, we recognized a net unrealized gain of $12 million and a net unrealized loss of $1 million, respectively, for the change in value of investments in interest and principal-only strips in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Over the same periods, we did not recognize any realized gains or losses on our interest or principal-only securities.

Securitizations and Variable Interest Entities

As of March 31, 2014 and December 31, 2013, we held investments in CMO trusts, which are VIEs. We have consolidated certain of these CMO trusts in our consolidated financial statements where we have determined we are the primary beneficiary of the trusts. All of our CMO securities are backed by fixed or adjustable-rate agency MBS. Fannie Mae or Freddie Mac guarantees the payment of interest and principal and acts as the trustee and administrator of their respective securitization trusts. Accordingly, we are not required to provide the beneficial interest holders of the CMO securities any financial or other support. Our maximum exposure to loss related to our involvement with CMO trusts is the fair value of the CMO securities and interest and principal-only securities held by us, less principal amounts guaranteed by Fannie Mae and Freddie Mac.

In connection with our consolidated CMO trusts, we recognized agency securities with a total fair value of $1.4 billion and $1.5 billion as of March 31, 2014 and December 31, 2013, respectively, and debt, at fair value, of $874 million and $910 million, respectively, in our accompanying consolidated balance sheets. As of March 31, 2014 and December 31, 2013, such agency securities had an aggregate unpaid principal balance of $1.3 billion and $1.4 billion, respectively, and such debt had an aggregate unpaid principal balance of $863 million and $900 million, respectively. We re-measure our consolidated debt at fair value through earnings in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. For the three months endedMarch 31, 2014 and 2013, we recognized a net loss of $(3) million and a net gain of $13 million in earnings, respectively, associated with our consolidated debt. Our involvement with the consolidated trusts is limited to the agency securities transferred by us upon the formation of the trusts and the CMO securities subsequently held by us. There are no arrangements that could require us to provide financial support to the trusts.

As of March 31, 2014 and December 31, 2013, the fair value of our CMO securities and interest and principal-only securities was $1.7 billion, excluding the consolidated CMO trusts discussed above, or $2.3 billion including the net asset value of our consolidated CMO trusts. Our maximum exposure to loss related to our CMO securities and interest and principal-only securities, including our consolidated CMO trusts, was $265 million and $246 million as of March 31, 2014 and December 31, 2013, respectively.

Note 5. Repurchase Agreements and Other Debt

We pledge certain of our securities as collateral under repurchase arrangements with financial institutions, the terms and conditions of which are negotiated on a transaction-by-transaction basis (see Note 7). Interest rates on these borrowings are generally based on LIBOR plus or minus a margin and amounts available to be borrowed are dependent upon the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, type of security and liquidity conditions within the banking, mortgage finance and real estate industries. If the fair value of our pledged securities declines, lenders will typically require us to post additional collateral or pay down borrowings to re-establish agreed upon collateral requirements, referred to as

13

"margin calls." Similarly, if the fair value of our pledged securities increases, lenders may release collateral back to us. As of March 31, 2014, we have met all margin call requirements.

The following table summarizes our borrowings under repurchase arrangements and weighted average interest rates classified by remaining maturities as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014					December 31, 2013
Remaining Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity
Agency MBS:
≤ 1 month	$	13,440	0.37	%	15	$	23,577	0.42	%	15
> 1 to ≤ 3 months	17,396		0.38	%	54	20,490		0.43	%	61
> 3 to ≤ 6 months	5,242		0.45	%	137	6,946		0.45	%	140
> 6 to ≤ 9 months	4,560		0.51	%	232	2,232		0.53	%	230
> 9 to ≤ 12 months	4,171		0.49	%	326	3,607		0.54	%	323
> 12 to ≤ 24 months	3,232		0.57	%	517	3,261		0.60	%	603
> 24 to ≤ 36 months	540		0.61	%	876	500		0.62	%	930
> 36 months	999		0.66	%	1,599	602		0.68	%	1,468
Total agency MBS	49,580		0.43	%	162	61,215		0.45	%	124
U.S. Treasury securities:
1 day	149		0.05	%	1	2,318		0.02	%	1
Total / Weighted Average	$	49,729	0.43	%	161	$	63,533	0.44	%	119

As of March 31, 2014 and December 31, 2013, debt of consolidated VIEs, at fair value ("other debt") was $874 million and $910 million, respectively. As of March 31, 2014 and December 31, 2013, our other debt had a weighted average interest rate of LIBOR plus 43 and 42 basis points and a principal balance of $863 million and $900 million, respectively. The actual maturities of our other debt are generally shorter than the stated contractual maturities. The actual maturities are affected by the contractual lives of the underlying agency MBS securitizing our other debt and periodic principal prepayments of such underlying securities. The estimated weighted average life of our other debt as of March 31, 2014 was 6.5 years.

As of March 31, 2014 and December 31, 2013, we also had outstanding forward commitments to purchase and sell agency securities through the TBA market (see Notes 3 and 6). These transactions, also referred to as TBA dollar roll transactions, represent a form of off-balance sheet financing and serve to either increase, in the case of forward purchases, or decrease, in the case of forward sales, our "at risk" leverage. However, pursuant to ASC 815, we typically account for such transactions as one or more series of derivative transactions and, consequently, they are not included in our on-balance sheet debt or measurement of commensurate leverage ratios.

Note 6. Derivative and Other Hedging Instruments

In connection with our risk management strategy, we hedge a portion of our interest rate risk by entering into derivative and other hedging instrument contracts. We typically enter into agreements for interest rate swaps and interest rate swaptions. We may also purchase or short TBA and U.S. Treasury securities, purchase or write put or call options on TBA securities or we may invest in other types of mortgage derivative securities, such as interest and principal-only securities. Our risk management strategy attempts to manage the overall risk of the portfolio, reduce fluctuations in book value and generate additional income distributable to stockholders. For additional information regarding our derivative instruments and our overall risk management strategy, please refer to the discussion of derivative and other hedging instruments in Note 3.

Prior to September 30, 2011, our interest rate swaps were typically designated as cash flow hedges under ASC 815; however, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps in order to increase our funding flexibility. For the three months endedMarch 31, 2014 and 2013, we reclassified $43 million and $49 million, respectively, of net deferred losses from accumulated OCI into interest expense related to our de-designated interest rate swaps and recognized an equal, but offsetting, amount in other comprehensive income. Our total net periodic interest costs on our swap portfolio for these periods were $126 million and $133 million, respectively. The difference of $83 million and $84 million for these periods, respectively, is reported in our accompanying consolidated statements of comprehensive income in gain (loss) on derivative

14

instruments and other securities, net. As of March 31, 2014, the remaining net deferred loss in accumulated OCI related to de-designated interest rate swaps was $253 million and will be reclassified from OCI into interest expense over a remaining weighted average period of 1.9 years. As of March 31, 2014, the net deferred loss expected to be reclassified from OCI into interest expense over the next twelve months was $143 million.

Derivative Assets (Liabilities), at Fair Value

The table below summarizes fair value information about our derivative assets and liabilities as of March 31, 2014 and December 31, 2013 (in millions):

Derivatives Instruments	Balance Sheet Location	March 31, 2014			December 31, 2013
Interest rate swaps	Derivative assets, at fair value	$	560		$	880
Swaptions	Derivative assets, at fair value	96			258
TBA securities	Derivative assets, at fair value	24			17
U.S. Treasury futures - short	Derivative assets, at fair value	6			39
		$	686		$	1,194
Interest rate swaps	Derivative liabilities, at fair value	$	(368	)	$	(400	)
TBA securities	Derivative liabilities, at fair value	(49		)	(22		)
		$	(417	)	$	(422	)

 Additionally, as of March 31, 2014 and December 31, 2013, we had obligations to return U.S. Treasury securities borrowed under reverse repurchase agreements accounted for as securities borrowing transactions at a fair value of $6.7 billion and $1.8 billion, respectively. The borrowed securities were used to cover short sales of U.S. Treasury securities from which we received total proceeds of $6.7 billion and $1.9 billion, respectively. The change in fair value of the borrowed securities is recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

The following tables summarize our interest rate swap agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
Payer Interest Rate Swaps	Notional Amount 1		Average Fixed Pay Rate 2		Average Receive Rate 3		Net Estimated Fair Value			Average Maturity (Years) 4
≤ 3 years	$	16,650	1.55	%	0.18	%	$	(327	)	1.4
> 3 to ≤ 5 years	10,575		1.29	%	0.24	%	78			4.0
> 5 to ≤ 7 years	6,250		2.09	%	0.25	%	66			5.9
> 7 to ≤ 10 years	10,175		2.51	%	0.24	%	287			8.5
> 10 years	2,750		3.17	%	0.24	%	88			14.1
Total Payer Interest Rate Swaps	$	46,400	1.87	%	0.21	%	$	192		4.9

  ________________________

1. Notional amount includes forward starting swaps of $9.5 billion with an average forward start date of 1.9 years from March 31, 2014.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of March 31, 2014.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from March 31, 2014 through stated maturity date.

15

	December 31, 2013
Payer Interest Rate Swaps 1	Notional Amount		Average Fixed Pay Rate	Average Receive Rate	Net Estimated Fair Value			Average Maturity (Years)
≤ 3 years	$	16,750	1.57%	0.19%	$	(382	)	1.6
> 3 to ≤ 5 years	10,225		1.07%	0.24%	81			3.9
> 5 to ≤ 7 years	5,700		1.97%	0.26%	113			6.0
> 7 to ≤ 10 years	8,825		2.28%	0.24%	499			8.8
> 10 years	1,750		2.79%	0.24%	169			14.7
Total Payer Interest Rate Swaps	$	43,250	1.70%	0.22%	$	480		4.7

  ________________________

1. Notional amount includes forward starting swaps of $4.0 billion with an average forward start date of 1.9 years from December 31, 2013.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of December 31, 2013.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from December 31, 2013 through stated maturity date.

The following tables summarize our interest rate swaption agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	111	$	44	5	$	4,650	2.98%	3M	6.4
> 1 to ≤ 2 years	60		34		18	2,450		3.55%	3M	4.5
> 2 to ≤ 3 years	23		15		28	900		3.99%	3M	5.4
Total Payer Swaptions	$	194	$	93	12	$	8,000	3.27%	3M	5.7

	March 31, 2014
	Option					Underlying Receiver Swap
	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Receive Rate	Average  Pay Rate (LIBOR)	Average Term (Years)
Receiver Swaption	$	3	$	3	12	$	1,000	2.26%	3M	10.0

	December 31, 2013
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	193	$	117	4	$	9,400	2.87%	3M	7.8
> 1 to ≤ 2 years	105		92		19	3,600		3.40%	3M	5.6
> 2 to ≤ 3 years	35		45		30	1,150		3.81%	3M	5.8
> 3 to ≤ 5 years	2		4		52	100		4.80%	3M	7.0
Total Payer Swaptions	$	335	$	258	10	$	14,250	3.09%	3M	7.0

16

We did not have any receiver swaptions as of December 31, 2013.

The following table summarizes our contracts to purchase and sell TBA contracts as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014												December 31, 2013
Purchase and Sale Contracts for TBAs	Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4			Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4
TBA securities:
Purchase contracts	$	17,699		$	18,136		$	18,095		$	(41	)	$	6,660		$	6,882		$	6,864		$	(18	)
Sale contracts	(3,790		)	(4,009		)	(3,993		)	16			(4,541		)	(4,606		)	(4,593		)	13
TBA securities, net 5	$	13,909		$	14,127		$	14,102		$	(25	)	$	2,119		$	2,276		$	2,271		$	(5	)

  ________________________

1. Notional amount represents the par value (or principal balance) of the underlying agency security.

2. Cost basis represents the forward price to be paid / (received) for the underlying agency security.

3. Market value represents the current market value of the TBA contract (or of the underlying agency security) as of period-end.

4. Net carrying value represents the difference between the market value and the cost basis of the TBA contract as of period-end and is reported in derivative assets / (liabilities), at fair value in our consolidated balance sheets.

5. Includes 15-year and 30-year TBA securities of varying coupons

Gain (Loss) From Derivative Instruments and Other Securities, Net

The tables below summarize the effect of our derivative and other hedging instruments on our consolidated statements of comprehensive income for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31, 2014
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2013			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2014			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA securities	$	2,119		24,376		(12,586	)	$	13,909		$	60
Interest rate swaps	$	(43,250	)	(5,900	)	2,750		$	(46,400	)	(380		)
Payer swaptions, net	$	(14,250	)	(1,000	)	7,250		$	(8,000	)	(105		)
Receiver swaption	$	—		1,000		—		$	1,000		—
U.S. Treasury securities - short position	$	(2,007	)	(7,241	)	2,462		$	(6,786	)	(45		)
U.S. Treasury securities - long position	$	3,927		1,900		(5,627	)	$	200		72
U.S. Treasury futures contracts - short position	$	(1,730	)	(730	)	1,730		$	(730	)	(36		)
TBA put option	$	—		(50	)	50		$	—		—
											$	(434	)

  ________________________________

1. Excludes a net gain of $49 million from investments in REIT equity securities, a net loss of $3 million from debt of consolidated VIEs, a net gain of$12 million on interest and principal-only securities and other miscellaneous net losses of $2 million recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

	Three Months Ended March 31, 2013
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2012			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2013			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA and forward settling agency securities	$	12,477		43,267		(29,476	)	$	26,268		$	(102	)
Interest rate swaps	$	(46,850	)	(5,750	)	1,350		$	(51,250	)	54
Payer swaptions	$	(14,450	)	(11,150	)	2,700		$	(22,900	)	(44		)
U.S. Treasury securities - short position	$	(11,835	)	(9,935	)	9,210		$	(12,560	)	(3		)
U.S. Treasury futures contracts - short position	$	—		(800	)	—		$	(800	)	(15		)
											$	(110	)

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  ______________________

1. Excludes a net loss of $1 million on interest and principal-only securities and a net gain of $13 million from debt of consolidated VIEs recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

Note 7. Pledged Assets

Our repurchase agreements and derivative contracts require us to fully collateralize our obligations under the agreements based upon our counterparties' collateral requirements and their determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, credit quality and liquidity conditions within the investment banking, mortgage finance and real estate industries. In addition, obligations under our derivative agreements will typically vary over time based on similar factors as well as the remaining term of the derivative contract. We are also typically required to post initial collateral upon execution of derivative transactions, such as interest rate swaps and TBA contracts. If we breach any of these provisions, we will be required to fully settle our obligations under the agreements, which could include a forced liquidation of our pledged collateral.

Our repurchase agreement and derivative counterparties also apply a "haircut" to our pledged collateral, which means our collateral is valued at slightly less than market value and limits the amount we can borrow against our securities. This haircut reflects the underlying risk of the specific collateral and protects our counterparty against a change in its value. Our agreements do not specify the haircut; rather haircuts are determined on an individual transaction basis.

Consequently, the use of repurchase agreements and derivative instruments exposes us to credit risk relating to potential losses that could be recognized in the event that our counterparties fail to perform their obligations under such agreements. We minimize this risk by limiting our repurchase agreement and derivative counterparties to major financial institutions with acceptable credit ratings or to a registered clearinghouse, and we monitor our positions with individual counterparties. In the event of a default by a counterparty we may have difficulty obtaining our assets pledged as collateral to such counterparty and may not receive payments provided for under the terms of our derivative agreements. In the case of centrally cleared instruments, we could be exposed to credit risk if the central clearing agency or a clearing member defaults on its respective obligation to perform under the contract. However, we believe that the risk is minimal due to clearing exchange initial and daily mark to market margin requirements and clearinghouse guarantee funds and other resources that are available in the event of a clearing member default.

Further, each of our International Swaps and Derivatives Association ("ISDA") Master Agreements also contains a cross default provision under which a default under certain of our other indebtedness in excess of a certain threshold causes an event of default under the agreement. Threshold amounts vary by lender. Following an event of default, we could be required to settle our obligations under the agreements. Additionally, under certain of our ISDA Master Agreements, we could be required to settle our obligations under the agreements if we fail to maintain certain minimum stockholders' equity thresholds or our REIT status or if we fail to comply with limits on our leverage above certain specified levels. As of March 31, 2014, the fair value of additional collateral that could be required to be posted as a result of the credit-risk-related contingent features being triggered was not material to our financial statements.

As of March 31, 2014, our amount at risk with any counterparty related to our repurchase agreements was less than 4% of our stockholders' equity and our amount at risk with any counterparty related to our interest rate swap and swaption agreements, excluding centrally cleared swaps, was less than 1% of our stockholders' equity.

Assets Pledged to Counterparties

The following tables summarize our assets pledged as collateral under our repurchase agreements, debt of consolidated VIEs, derivative agreements and prime broker agreements by type, including securities pledged related to securities sold but not yet settled, as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	52,047	$	1,417	$	56	$	519	$	54,039
U.S. Treasury securities - fair value	125		—		71		—		196
Accrued interest on pledged securities	146		4		—		1		151
Restricted cash	1		—		224		44		269
Total	$	52,319	$	1,421	$	351	$	564	$	54,655

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	December 31, 2013
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	62,708	$	1,459	$	28	$	91	$	64,286
U.S. Treasury securities - fair value	3,708		—		70		—		3,778
Accrued interest on pledged securities	189		5		1		—		195
Restricted cash	3		—		41		57		101
Total	$	66,608	$	1,464	$	140	$	148	$	68,360

The cash and cash equivalents and agency securities pledged as collateral under our derivative agreements are included in restricted cash and agency securities, at fair value, respectively, on our consolidated balance sheets.

The following table summarizes our securities pledged as collateral under repurchase agreements and debt of consolidated VIEs by remaining maturity, including securities pledged related to sold but not yet settled securities, as of March 31, 2014 and 2013 (in millions):

	March 31, 2014						December 31, 2013
Agency Securities Pledged by Remaining Maturity of Repurchase Agreements and Debt of Consolidated VIEs	Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities		Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities
Agency MBS:
≤ 30 days	$	17,683	$	17,858	$	49	$	27,694	$	28,125	$	76
> 30 and ≤ 60 days	15,881		16,024		44		14,955		15,210		42
> 60 and ≤ 90 days	5,585		5,630		16		10,117		10,290		28
> 90 days	14,315		14,519		41		11,401		11,623		32
Total agency MBS	53,464		54,031		150		64,167		65,248		178
U.S. Treasury securities:
1 day	125		125		—		3,708		3,760		16
Total	$	53,589	$	54,156	$	150	$	67,875	$	69,008	$	194

As of March 31, 2014 and December 31, 2013, none of our repurchase agreement borrowings backed by agency MBS were due on demand or mature overnight.

Assets Pledged from Counterparties

As of March 31, 2014 and December 31, 2013, we also had assets pledged to us as collateral under our repurchase, reverse repurchase and derivative agreements summarized in the tables below (in millions).

	March 31, 2014
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	17	$	17
U.S. Treasury securities - fair value	—		6,658		56		6,714
Cash	16		—		167		183
Total	$	16	$	6,658	$	240	$	6,914

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	December 31, 2013
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	82	$	82
U.S. Treasury securities - fair value	—		1,848		164		2,012
Cash	—		—		366		366
Total	$	—	$	1,848	$	612	$	2,460

U.S Treasury securities received as collateral under our reverse repurchase agreements are accounted for as securities borrowing transactions and are used to cover short sales of the same securities. We recognize a corresponding obligation to return the borrowed securities at fair value on the accompanying consolidated balance sheets based on the value of the underlying borrowed securities as of the reporting date.

Cash collateral received is recognized in cash and cash equivalents with a corresponding amount recognized in accounts payable and other accrued liabilities on the accompanying consolidated balance sheets.

Offsetting Assets and Liabilities

Certain of our repurchase agreements and derivative transactions are governed by underlying agreements that generally provide for a right of setoff under master netting arrangements (or similar agreements), including in the event of default or in the event of bankruptcy of either party to the transactions. We present our assets and liabilities subject to such arrangements on a gross basis in our consolidated balance sheets.

The following tables present information about our assets and liabilities that are subject to such arrangements and can potentially be offset on our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in millions):

	Offsetting of Financial Assets and Derivative Assets
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Received 2
March 31, 2014
Interest rate swap and swaption agreements, at fair value 1	$	656	$	—	$	656	$	(287	)	$	(240	)	$	129
Receivable under reverse repurchase agreements	6,685		—		6,685		(4,773		)	(1,912		)	—
Total derivative, other hedging instruments and other assets	$	7,341	$	—	$	7,341	$	(5,060	)	$	(2,152	)	$	129
December 31, 2013
Interest rate swap and swaption agreements, at fair value 1	$	1,138	$	—	$	1,138	$	(331	)	$	(610	)	$	197
Receivable under reverse repurchase agreements	1,881		—		1,881		(1,881		)	—			—
Total derivative, other hedging instruments and other assets	$	3,019	$	—	$	3,019	$	(2,212	)	$	(610	)	$	197

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	Offsetting of Financial Liabilities and Derivative Liabilities
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Pledged 2
March 31, 2014
Interest rate swap agreements, at fair value 1	$	368	$	—	$	368	$	(288	)	$	(80	)	$	—
Repurchase agreements	49,729		—		49,729		(4,773		)	(44,806		)	150
Total derivative, other hedging instruments and other liabilities	$	50,097	$	—	$	50,097	$	(5,061	)	$	(44,886	)	$	150
December 31, 2013
Interest rate swap agreements, at fair value 1	$	400	$	—	$	400	$	(331	)	$	(69	)	$	—
Repurchase agreements	63,533		—		63,533		(1,881		)	(61,652		)	—
Total derivative, other hedging instruments and other liabilities	$	63,933	$	—	$	63,933	$	(2,212	)	$	(61,721	)	$	—

_______________________

1. Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 6 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.

2. Includes cash and securities received / pledged as collateral, at fair value. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable. Refer to Note 4 for additional information regarding assets pledged as collateral.

Note 8. Fair Value Measurements

We determine the fair value of our agency securities and debt of consolidated VIEs based upon fair value estimates obtained from multiple third party pricing services and dealers.  In determining fair value, third party pricing sources use various valuation approaches, including market and income approaches.  Factors used by third party sources in estimating the fair value of an instrument may include observable inputs such as coupons, primary and secondary mortgage rates, pricing information, credit data, volatility statistics, and other market data that are current as of the measurement date. The availability of observable inputs can vary by instrument and is affected by a wide variety of factors, including the type of instrument, whether the instrument is new and not yet established in the marketplace and other characteristics particular to the instrument.  Third party pricing sources may also use certain unobservable inputs, such as assumptions of future levels of prepayment, defaults and foreclosures, especially when estimating fair values for securities with lower levels of recent trading activity. We make inquiries of third party pricing sources to understand the significant inputs and assumptions they used to determine their prices. For further information regarding valuation of our derivative instruments, please refer to the discussion of derivative and other hedging instruments in Note 3.

We review the various third party fair value estimates and perform procedures to validate their reasonableness, including an analysis of the range of third party estimates for each position, comparison to recent trade activity for similar securities, and management review for consistency with market conditions observed as of the measurement date. While we do not adjust prices we obtain from third party pricing sources, we will exclude third party prices for securities from our determination of fair value if we determine (based on our validation procedures and our market knowledge and expertise) that the price is significantly different than observable market data would indicate and we cannot obtain an understanding from the third party source as to the significant inputs used to determine the price.

The validation procedures described above also influence our determination of the appropriate fair value measurement classification.  We utilize a three-level valuation hierarchy for disclosure of fair value measurement. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. A financial instrument's categorization within the hierarchy is based upon the lowest level of input that is significant to the fair value measurement. There were no transfers between hierarchy levels during the three months endedMarch 31, 2014. The three levels of hierarchy are defined as follows:

• Level 1 Inputs —Quoted prices (unadjusted) for identical unrestricted assets and liabilities in active markets that are accessible at the measurement date.

• Level 2 Inputs —Quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

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• Level 3 Inputs —Instruments with primarily unobservable market data that cannot be corroborated.

The following table provides a summary of our assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2014 and December 31, 2013 (dollars in millions):

	Fair Value Hierarchy
	Level 1		Level 2		Level 3
March 31, 2014
Assets:
Agency securities	$	—	$	56,377	$	—
U.S. Treasury securities	196		—		—
Interest rate swaps	—		560		—
Payer swaptions	—		96		—
REIT equity securities	352		—
U.S. Treasury futures	6		—		—
TBA securities	—		24		—
Total	$	554	$	57,057	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	874	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	6,658		—		—
Interest rate swaps	—		368		—
TBA securities	—		49		—
Total	$	6,658	$	1,291	$	—
December 31, 2013
Assets:
Agency securities	$	—	$	65,941	$	—
U.S. Treasury securities	3,822		—		—
Interest rate swaps	—		880		—
Payer swaptions	—		258		—
REIT equity securities	237		—		—
U.S. Treasury futures	39		—		—
TBA securities	—		17		—
Total	$	4,098	$	67,096	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	910	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	1,848		—		—
Interest rate swaps	—		400		—
TBA securities	—		22		—
Total	$	1,848	$	1,332	$	—

We elected the option to account for debt of consolidated VIEs at fair value with changes in fair value reflected in earnings during the period in which they occur, because we believe this election more appropriately reflects our financial position as both the consolidated agency securities and consolidated debt are presented in a consistent manner, at fair value, on our consolidated balance sheets. We estimate the fair value of the consolidated debt based on a market approach using Level 2 inputs from third-party pricing services and dealer quotes.

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Note 9. Stockholders' Equity

Common Stock Repurchase Program

In October 2012, our Board of Directors adopted a program that provides for stock repurchases of up to $500 million of our outstanding shares of common stock through December 31, 2013.  In September 2013, our Board of Directors increased the authorized amount to $1 billion of our outstanding shares of common stock and extended its authorization through December 31, 2014. In January 2014, our Board of Directors increased the authorized amount by an additional $1 billion of our outstanding shares of common stock through December 31, 2014. Shares of our common stock may be purchased in the open market, including through block purchases, or through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.  The timing, manner, price and amount of any repurchases will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason.  We intend to repurchase shares only when the purchase price is less than our estimate of our current net asset value per share of our common stock. Generally, when we repurchase our common stock at a discount to our net asset value, the net asset value of our remaining shares of common stock outstanding increases. In addition, we do not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate us to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

During the three months ended March 31, 2014, we repurchased approximately 3.4 million shares of our common stock at an average repurchase price of $22.10 per share, including expenses, totaling $74 million. As of March 31, 2014, the total remaining amount authorized for repurchases of our common stock was $992 million.

Accumulated Other Comprehensive Income (Loss)

The following table summarizes changes to accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

Accumulated Other Comprehensive (Loss) Income	Net Unrealized Gain (Loss) on Available-for-Sale MBS			Net Unrealized Gain (Loss) on Swaps			Total Accumulated OCI Balance
Balance as of December 31, 2013	$	(1,087	)	$	(296	)	$	(1,383	)
OCI before reclassifications	502			—			502
Amounts reclassified from accumulated OCI	19			43			62
Balance as of March 31, 2014	$	(566	)	$	(253	)	$	(819	)
Balance as of December 31, 2012	$	2,040		$	(485	)	$	1,555
OCI before reclassifications	(863		)	—			(863		)
Amounts reclassified from accumulated OCI	26			49			75
Balance as of March 31, 2013	$	1,203		$	(436	)	$	767

The following table summarizes reclassifications out of accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,				Line Item in the Consolidated Statements of Comprehensive Income Where Net Income is Presented
Amounts Reclassified from Accumulated OCI	2014		2013
Loss amounts reclassified from accumulated OCI for available-for-sale MBS	$	19	$	26	Gain (loss) on sale of agency securities, net
Periodic interest costs of interest rate swaps previously designated as hedges under GAAP, net	43		49		Interest expense
Total reclassifications	$	62	$	75

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Note 10. Subsequent Event

On May 8, 2014, we completed a public offering in which 7.0 million depository shares with a liquidation preference of $25.00 per depositary share were sold to the underwriters at a price of $24.2125 per depository share, for proceeds, net of offering expenses, of approximately $169 million. Each depositary share represents a 1/1,000th interest in a share of our 7.750% Series B Cumulative Redeemable Preferred Stock ("Series B Preferred Stock"). In connection with the offering, we granted the underwriters an option for 30 days to purchase up to an additional 1.05 million depositary shares to cover overallotments, if any. Our Series B Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and ranks on parity with our 8.000% Series A Cumulative Redeemable Preferred Stock. Under certain circumstances upon a change of control, our Series B Preferred Stock is convertible to shares of our common stock. Holders of depositary shares have no voting rights, except under limited conditions, and are entitled to receive cumulative cash dividends at a rate of 7.750% per annum of the $25.00 per depository share liquidation preference before holders of our common stock are entitled to receive any dividends. Dividends are payable quarterly in arrears on the 15th day of each January, April, July and October. Depositary shares are redeemable at $25.00 per depository share plus accumulated and unpaid dividends (whether or not declared) exclusively at our option commencing on May 8, 2019, or earlier under certain circumstances intended to preserve our qualification as a REIT for federal income tax purposes.

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

Management's Discussion and Analysis of Financial Condition and Results of Operations ("MD&A") is designed to provide a reader of American Capital Agency Corp.'s consolidated financial statements with a narrative from the perspective of management. Our MD&A is presented in five sections:

• Executive Overview

• Financial Condition

• Results of Operations

• Liquidity and Capital Resources

• Forward-Looking Statements

EXECUTIVE OVERVIEW

American Capital Agency Corp. ("AGNC", the "Company", "we", "us" and "our") was organized on January 7, 2008 and commenced operations on May 20, 2008 following the completion of our initial public offering. Our common stock is traded on The NASDAQ Global Select Market under the symbol "AGNC." We are externally managed by American Capital AGNC Management, LLC (our "Manager"), an affiliate of American Capital, Ltd. ("American Capital").

We operate so as to qualify to be taxed as a real estate investment trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). As such, we are required to distribute annually 90% of our taxable net income. As long as we qualify as a REIT, we will generally not be subject to U.S. federal or state corporate taxes on our taxable net income to the extent that we distribute all of our annual taxable net income to our stockholders. It is our intention to distribute 100% of our taxable net income, after application of available tax attributes, within the limits prescribed by the Internal Revenue Code, which may extend into the subsequent taxable year.

We earn income primarily from investing on a leveraged basis in agency mortgage-backed securities ("agency MBS"). These investments consist of residential mortgage pass-through securities and collateralized mortgage obligations ("CMOs") for which the principal and interest payments are guaranteed by a government-sponsored enterprise, such as the Federal National Mortgage Association ("Fannie Mae") and the Federal Home Loan Mortgage Corporation ("Freddie Mac"), or by a U.S. Government agency, such as the Government National Mortgage Association ("Ginnie Mae") (collectively referred to as "GSEs"). We may also invest in agency debenture securities issued by Freddie Mac, Fannie Mae or the Federal Home Loan Bank and in other assets reasonably related to agency securities.

Our principal objective is to preserve our net book value (also referred to as "net asset value", "NAV" and "stockholders' equity") while generating attractive risk-adjusted returns for distribution to our stockholders through regular quarterly dividends from the combination of our net interest income and net realized gains and losses on our investments and hedging activities. We fund our investments primarily through borrowings structured as repurchase agreements.

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Our Investment Strategy

Our investment strategy is designed to:

• manage an investment portfolio consisting primarily of agency securities and assets reasonably related to agency securities that seeks to generate attractive risk-adjusted returns;

• capitalize on discrepancies in the relative valuations in the agency securities market;

• manage financing, interest rate, prepayment and extension risks;

• preserve our net book value;

• provide regular quarterly distributions to our stockholders;

• continue to qualify as a REIT; and

• remain exempt from the requirements of the Investment Company Act of 1940, as amended (the "Investment Company Act").

The size and composition of our investment portfolio depends on investment strategies implemented by our Manager, the availability of investment capital and overall market conditions, including the availability of attractively priced investments and suitable financing to appropriately leverage our investment portfolio. Market conditions are influenced by, among other things, current levels of and expectations for future levels of interest rates, mortgage prepayments, market liquidity, housing prices, unemployment rates, general economic conditions, government participation in the mortgage market, evolving regulations or legal settlements that impact servicing practices or other mortgage related activities.

Our Risk Management Strategy

We use a variety of strategies to hedge a portion of our exposure to market risks, including interest rate, prepayment and extension risks, to the extent that our Manager believes is prudent, taking into account our investment strategy, the cost of the hedging transactions and our intention to qualify as a REIT. As a result, we may not hedge certain interest rate, prepayment or extension risks if our Manager believes that bearing such risks enhances our return relative to our risk/return profile, or the hedging transaction would negatively impact our REIT status.

• Interest Rate Risk. We hedge a portion of our exposure to potential interest rate mismatches between the interest we earn on our longer term investments and the interest we pay on our shorter term borrowings. Because a majority of our funding is in the form of repurchase agreements, our financing costs fluctuate based on short-term interest rate indices, such as LIBOR. Because our investments are assets that primarily have fixed rates of interest and could mature in up to 40 years, the interest we earn on those assets generally does not move in tandem with the interest that we pay on our repurchase agreements; therefore, we may experience reduced income or losses due to adverse rate movements. In order to attempt to mitigate a portion of such risk, we utilize certain hedging techniques to attempt to lock in a portion of the net interest spread between the interest we earn on our assets and the interest we pay on our financing costs.

Additionally, because prepayments on residential mortgages generally accelerate when interest rates decrease and slow when interest rates increase, mortgage securities typically have "negative convexity." In other words, certain mortgage securities in which we invest may increase in price more slowly than similar duration bonds, or even fall in value, as interest rates decline. Conversely, certain mortgage securities in which we invest may decrease in value more quickly than similar duration bonds as interest rates increase. In order to manage this risk, we monitor, among other things, the "duration gap" between our mortgage assets and our hedge portfolio as well as our convexity exposure. Duration is the estimated percentage change in market value of our mortgage assets or our hedge portfolio that would be caused by a parallel change in short and long-term interest rates. Convexity exposure relates to the way the duration of our mortgage assets or our hedge portfolio changes when the interest rate or prepayment environment changes.

The value of our mortgage assets may also be adversely impacted by fluctuations in the shape of the yield curve or by changes in the market's expectation about the volatility of future interest rates. We analyze our exposure to non-parallel changes in interest rates and to changes in the market's expectation of future interest rate volatility and take actions to attempt to mitigate these risks.

• Prepayment Risk. Because residential borrowers have the option to prepay their mortgage loans at par at any time, we face the risk that we will experience a return of principal on our investments faster than anticipated. Prepayment risk generally increases when interest rates decline. In this scenario, our financial results may be adversely affected as we may have to invest that principal at potentially lower yields.

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• Extension Risk. Because residential borrowers have the option to make only scheduled payments on their mortgage loans, rather than prepay their mortgage loans, we face the risk that a return of capital on our investment will occur slower than anticipated. Extension risk generally increases when interest rates rise. In this scenario, our financial results may be adversely affected as we may have to finance our investments at potentially higher costs without the ability to reinvest principal into higher yielding securities.

The principal instruments that we use to hedge a portion of our exposure to interest rate, prepayment and extension risks are interest rate swaps and options to enter into interest rate swaps ("interest rate swaptions"). We also utilize forward contracts for the purchase or sale of agency MBS securities on a generic pool basis, or a TBA contract, and on a non-generic, specified pool basis, and we utilize U.S. Treasury securities and U.S. Treasury futures contracts, primarily through short sales. We may also purchase or write put or call options on TBA securities and we may invest in other types of mortgage derivatives, such as interest and principal-only securities.

Our hedging instruments are generally not designed to protect our net book value from "spread risk" (also referred to as "basis risk"), which is the risk of an increase of the market spread between the yield on our agency securities and the benchmark yield on U.S. Treasury securities or interest rate swap rates. The inherent spread risk associated with our agency securities and the resulting fluctuations in fair value of these securities can occur independent of interest rates and may relate to other factors impacting the mortgage and fixed income markets, such as actual or anticipated monetary policy actions by the Federal Reserve ("Fed"), liquidity, or changes in required rates of return on different assets. Consequently, while we use interest rate swaps and other supplemental hedges to attempt to protect our net book value against moves in interest rates, such instruments typically will not protect our net book value against spread risk and, therefore, the value of our agency securities and our net book value could decline.

The risk management actions we take may lower our earnings and dividends in the short term to further our objective of maintaining attractive levels of earnings and dividends over the long term. In addition, some of our hedges are intended to provide protection against larger rate moves and as a result may be relatively ineffective for smaller changes in interest rates. There can be no certainty that our Manager's projections of our exposures to interest rates, prepayments, extension or other risks will be accurate or that our hedging activities will be effective and, therefore, actual results could differ materially.

Income from hedging transactions that we enter into to manage risk may not constitute qualifying gross income under one or both of the gross income tests applicable to REITs. Therefore, we may have to limit our use of certain advantageous hedging techniques, which could expose us to greater risks than we would otherwise want to bear, or implement those hedges through a taxable REIT subsidiary ("TRS"). Implementing our hedges through a TRS could increase the cost of our hedging activities because a TRS is subject to tax on income and gains.

Trends and Recent Market Impacts

The first quarter of 2014 saw some stability return to the fixed income markets. After being one of the hardest hit sectors in 2013, fixed rate agency MBS prices were generally higher over the first quarter largely due to lower long term rates and lower levels of implied volatility (lower option prices). The yield curve flattened during the quarter as the market began to anticipate a shift in Fed monetary policy toward a moderate pace of tightening potentially beginning mid-2015. During the quarter, the Fed continued to taper its asset purchase program at a pace of $10 billion per meeting, spread equally between agency MBS and U.S. Treasury instruments. A continued decline in new mortgage origination volumes more than offset the reduced Fed purchases and generally supported mortgage performance despite significant selling on the part of fixed-income money managers.

The favorable landscape for agency MBS led to our economic return for the quarter of 5.1%, or 20.5% on an annualized basis, comprised of a $0.56 increase in our net book value per common share and a $0.65 dividend per common share. A sizable portion of this positive performance related to how we positioned the portfolio toward the end of 2013. These actions included maintaining just over 50% of our portfolio in 15 year fixed rate agency MBS, operating with a larger than normal "duration gap" (the estimated difference between the interest rate sensitivity of our assets and our liabilities and hedges), concentrating our hedges in the three to seven year part of the yield curve, and reducing the size of our swaption portfolio both prior to and during the first quarter.

Our decision to operate with a slightly larger duration gap during the first quarter was consistent with the higher share of 15 year MBS in our asset composition, our moderate leverage profile, and the minimal extension risk in our portfolio and in agency MBS more broadly. Our exposure to an increase in interest rates is the combination of our current duration plus the duration extension that occurs as interest rates increase. As such, when extension risk is very significant, we will tend to operate with a smaller duration gap and when extension risk is very low we will tend to operate with a larger duration gap. See also "Quantitative and Qualitative Disclosures about Market Risk" for a discussion of our exposure to interest rate sensitivity as of March 31, 2014.

26

Given very favorable implied financing terms available in the agency MBS to-be-announced market (or "TBA" market) during the first quarter, we held a greater share of our assets in the form of forward commitments to purchase agency MBS, or TBAs, rather than settling specific mortgage pools and funding them with repurchase agreements. Our TBA dollar roll position increased to approximately $14 billion at quarter end due to a combination of very favorable financing and a reduction in the benefits of holding specified collateral.

An additional benefit to gaining exposure to agency MBS in TBA form and continuing to roll the purchases forward to later settlement dates is that dollar roll income associated with these positions is tax efficient given our large capital loss carryforward from 2013. Each dollar roll transaction is recognized as a realized event and dollar roll income/loss is treated as capital gains/losses for tax purposes, rather than as ordinary income as would be the case if the position was held in pool form and funded with repurchase agreement financing. Dollar roll income, therefore, nets against our accumulated tax capital loss carryforward for taxable earnings purposes. If we continue to utilize our capital loss carryforward by generating net capital gains through dollar roll transactions, the tax characterization of a portion of our dividend may change from "ordinary" to "return of capital." Dividends characterized as "return of capital" may reduce a shareholder's cost basis in their stock position and thus impact the capital gain or loss they may recognize upon sale of the stock. If this occurs, it may be beneficial to shareholders in that dividends recorded as "return of capital" may represent a deferred tax liability and are typically taxed at the lower capital gains tax rate rather than being taxed in the current year at the ordinary income tax rate. As of March 31, 2014, we had $1.7 billion (or $4.77 per common share) of remaining capital loss carryforwards available to be applied against future capital gains (see also "Dividends and Income Taxes" in our "Results of Operations"). The final tax characterization of our dividends will be determined on an annual basis and reported to shareholders on Form 1090-DIV after the end of the calendar year. The tax consequences of an investment in our common stock will depend upon each shareholder's particular circumstances and shareholders are advised to consult with their tax advisors concerning the tax consequences of an investment in our common stock.

The table below summarizes interest rates and prices of generic fixed rate agency mortgage-backed securities as of each date presented below:

27

Interest Rate/Security Price 1	Mar. 31, 2014	Dec. 31, 2013	Sept 30, 2013	June 30, 2013	Mar. 31, 2013	Mar. 31, 2014 vs. Dec. 31, 2013
LIBOR:
1-Month	0.15%	0.17%	0.18%	0.19%	0.20%	--0.02	bps
3-Month	0.23%	0.25%	0.25%	0.27%	0.28%	--0.02	bps
6-Month	0.33%	0.35%	0.37%	0.41%	0.44%	--0.02	bps
U.S. Treasury Security Rate:
2-Year U.S. Treasury	0.42%	0.38%	0.32%	0.36%	0.24%	+0.04	bps
3-Year U.S. Treasury	0.90%	0.78%	0.63%	0.66%	0.36%	+0.12	bps
5-Year U.S. Treasury	1.72%	1.74%	1.38%	1.39%	0.77%	--0.02	bps
10-Year U.S. Treasury	2.72%	3.03%	2.61%	2.49%	1.85%	--0.31	bps
30-Year U.S. Treasury	3.56%	3.96%	3.69%	3.52%	3.10%	--0.40	bps
Interest Rate Swap Rate:
2-Year Swap	0.55%	0.49%	0.46%	0.51%	0.42%	+0.06	bps
3-Year Swap	0.99%	0.88%	0.76%	0.82%	0.54%	+0.11	bps
5-Year Swap	1.80%	1.79%	1.54%	1.57%	0.95%	+0.01	bps
10-Year Swap	2.84%	3.09%	2.77%	2.70%	2.01%	--0.25	bps
30-Year Swap	3.54%	3.93%	3.66%	3.45%	2.99%	--0.39	bps
30-Year Fixed Rate MBS Price:
3.0%	$96.53	$95.11	$97.70	$97.72	$103.11	+$1.42
3.5%	$100.59	$99.48	$101.83	$101.50	$105.58	+$1.11
4.0%	$103.94	$103.11	$104.86	$104.16	$106.61	+$0.83
4.5%	$106.69	$106.06	$106.80	$105.82	$107.73	+$0.63
5.0%	$109.05	$108.80	$108.45	$107.65	$108.34	+$0.25
15-Year Fixed Rate MBS Price:
2.5%	$99.92	$99.00	$100.61	$100.45	$103.75	+$0.92
3.0%	$102.72	$102.05	$103.53	$102.82	$105.17	+$0.67
3.5%	$104.83	$104.58	$105.58	$104.20	$106.03	+$0.25
4.0%	$105.78	$105.94	$106.25	$105.32	$107.00	-$0.16
4.5%	$106.05	$106.44	$106.25	$106.00	$107.67	-$0.39

 ________________________

1. Price information is for generic instruments only and is not reflective of our specific portfolio holdings. Price information can vary by source. Prices in the table above were obtained from a combination of Bloomberg and dealer indications. Interest rates were obtained from Bloomberg.

The following table summarizes recent prepayment trends for our portfolio:

Annualized Monthly Constant Prepayment Rates 1	Dec. 2013	Jan. 2014		Feb. 2014		Mar. 2014
AGNC portfolio	8%	8	%	7	%	6	%

 ________________________

1. Weighted average actual one-month annualized CPR released at the beginning of the month based on securities held/outstanding as of the preceding month-end.

28

FINANCIAL CONDITION

As of March 31, 2014 and December 31, 2013, our investment portfolio consisted of $56.4 billion and $65.9 billion of agency MBS, respectively, and a $14.1 billion and $2.3 billion net long TBA position, at fair value, respectively.

Our TBA positions are recorded as derivative instruments in our accompanying consolidated financial statements, with the TBA dollar roll transactions representing a form of off-balance sheet financing. As of March 31, 2014 and December 31, 2013, our TBA position had a net carrying value of $(25) million and $(5) million, respectively, reported in derivative assets/(liabilities) on our accompanying consolidated balance sheets. The net carrying value represents the difference between the fair value of the underlying agency security in the TBA contract and the cost basis or the forward price to be paid or received for the underlying agency security.

The following tables summarize certain characteristics of our agency MBS investment portfolio and our net TBA position as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
Agency MBS Classified as Available-for-Sale ("AFS")	Par Value		Amortized Cost		Amortized Cost Basis	Fair Value		% Lower Loan Balance & HARP 2,3	Weighted Average			Projected Life CPR 5
									WAC 4	Yield 5	Age (Mths)
Investments By Coupon: 1
Fixed Rate
≤ 15-Year
≤ 2.5%	$	7,439	$	7,597	102.1%	$	7,451	36%	2.96%	2.04%	17	5%
3.0%	4,655		4,797		103.1%	4,788		76%	3.49%	2.30%	25	7%
3.5%	10,479		10,894		104.0%	11,004		59%	3.93%	2.53%	36	10%
4.0%	5,436		5,699		104.8%	5,788		88%	4.40%	2.76%	40	12%
4.5%	568		597		105.2%	608		97%	4.87%	3.11%	43	14%
≥ 5.0%	8		8		104.3%	9		24%	6.48%	4.37%	76	2%
Total ≤ 15-Year	28,585		29,592		103.5%	29,648		63%	3.72%	2.43%	30	9%
20-Year
≤ 3.0%	345		342		99.2%	345		28%	3.55%	3.10%	10	2%
3.5%	757		775		102.3%	779		63%	4.05%	3.09%	13	4%
4.0%	89		94		104.9%	94		47%	4.53%	3.06%	31	8%
4.5%	113		121		107.1%	122		97%	4.89%	3.15%	40	11%
≥ 5.0%	6		6		106.5%	7		—%	5.90%	3.38%	70	21%
Total 20-Year:	1,310		1,338		102.1%	1,347		56%	4.04%	3.10%	16	5%
30-Year:
≤ 3.0%	228		232		101.8%	220		69%	3.69%	2.77%	14	5%
3.5%	8,651		9,160		105.9%	8,706		96%	4.02%	2.75%	22	6%
4.0%	9,223		9,808		106.3%	9,592		94%	4.47%	3.10%	26	8%
4.5%	3,215		3,433		106.8%	3,445		91%	4.95%	3.47%	36	10%
5.0%	204		217		106.4%	223		65%	5.45%	3.79%	72	13%
≥ 5.5%	254		276		108.5%	280		36%	6.24%	3.39%	87	17%
Total 30-Year	21,775		23,126		106.2%	22,466		93%	4.38%	3.02%	27	7%
Total Fixed Rate	51,670		54,056		104.6%	53,461		75%	4.01%	2.70%	28	8%
Adjustable Rate	1,152		1,176		102.1%	1,195		—%	2.58%	2.36%	28	18%
CMO	1,249		1,281		102.6%	1,289		—%	4.29%	2.88%	24	7%
Total / Weighted Average	$	54,071	$	56,513	104.5%	$	55,945	72%	3.99%	2.70%	28	8%

29

	March 31, 2014
Agency MBS Remeasured at Fair Value Through Earnings	Underlying Unamortized Principal Balance		Amortized Cost		Fair Value		Weighted Average			Projected Life CPR 5
							Coupon 1	Yield 5	Age (Mths)
Interest-Only Strips	$	1,324	$	211	$	230	5.49%	7.83%	47	12%
Principal-Only Strips	265		204		202		—%	4.13%	28	9%
Total / Weighted Average	$	1,589	$	415	$	432	4.57%	6.01%	38	10%

_______________________

1. The weighted average coupon on our agency MBS classified as "AFS" was 3.53% and the weighted average coupon on our total agency MBS portfolio, including agency MBS remeasured at fair value through earnings, was 3.65% as of March 31, 2014.

2. Lower loan balance securities represent pools backed by an original loan balance of ≤ $150,000. Our lower loan balance securities had a weighted average original loan balance of $100,000 and $95,000 for 15-year and 30-year securities, respectively, as of March 31, 2014.

3. HARP securities are defined as pools backed by100% refinance loans with LTV ≥ 80%. Our HARP securities had a weighted average LTV of 107% and 106% for 15-year and 30-year securities, respectively, as of March 31, 2014. Includes $987 million and $2.1 billion of 15-year and 30-year securities with >105 LTV pools which are not deliverable into TBA securities.

4. WAC represents the weighted average coupon of the underlying collateral.

5. Portfolio yield incorporates a projected life CPR assumption based on forward rate assumptions as of March 31, 2014.

	March 31, 2014
TBA Securities	Notional  Amount - Long (Short) 1			Cost Basis 2			Market Value 3			Net Carrying Value 4
15-Year TBA securities:
2.5%	$	1,774		$	1,773		$	1,769		$	(4	)
3.0%	4,884			5,020			5,008			(12		)
3.5%	(2,315		)	(2,437		)	(2,424		)	13
4.0%	(50		)	(53		)	(53		)	—
Total 15-Year TBAs	4,293			4,303			4,300			(3		)
30-Year TBA securities:
3.0%	55			52			53			1
3.5%	4,200			4,237			4,223			(14		)
4.0%	6,786			7,054			7,043			(11		)
4.5%	(1,425		)	(1,519		)	(1,517		)	2
Total 30-Year TBAs	9,616			9,824			9,802			(22		)
Total net TBA securities	$	13,909		$	14,127		$	14,102		$	(25	)

 ________________________

1. Notional amount represents the par value (or principal balance) of the underlying agency security.

2. Cost basis represents the forward price to be paid (received) for the underlying agency security.

3. Market value represents the current market value of the TBA contract (or of the underlying agency security) as of period-end.

4. Net carrying value represents the difference between the market value and the cost basis of the TBA contract as of period-end and is reported in derivative assets / (liabilities), at fair value on the accompanying consolidated balance sheets.

30

	December 31, 2013
Agency MBS Classified as AFS	Par Value		Amortized Cost		Amortized Cost Basis	Fair Value		% Lower Loan Balance & HARP 2,3	Weighted Average			Projected Life CPR 5
									WAC 4	Yield 5	Age (Months)
Investments By Coupon: 1
Fixed Rate
≤ 15-Year
≤ 2.5%	$	11,189	$	11,400	101.9%	$	11,109	31%	2.96%	2.11%	14	6%
3.0%	6,037		6,220		103.0%	6,166		69%	3.48%	2.34%	21	7%
3.5%	14,049		14,632		104.2%	14,716		51%	3.93%	2.52%	31	9%
4.0%	5,700		5,981		104.9%	6,056		88%	4.40%	2.78%	37	9%
4.5%	588		619		105.3%	631		99%	4.87%	3.15%	40	10%
≥ 5.0%	8		9		104.5%	9		23%	6.49%	4.40%	73	14%
Total ≤ 15-Year	37,571		38,861		103.4%	38,687		55%	3.66%	2.42%	25	8%
20-Year
≤ 3.0%	350		347		99.2%	346		28%	3.55%	3.10%	7	5%
3.5%	770		788		102.4%	785		63%	4.05%	3.11%	10	6%
4%	93		97		105.0%	97		47%	4.53%	3.10%	28	7%
4.5%	116		125		107.3%	124		97%	4.89%	3.20%	37	8%
≥ 5.0%	6		7		106.7%	7		—%	5.89%	3.39%	67	16%
Total 20-Year:	1,335		1,364		102.2%	1,359		56%	4.05%	3.11%	13	6%
30-Year:
≤ 3.0%	231		236		101.8%	220		69%	3.69%	2.78%	11	5%
3.5%	8,530		9,051		106.1%	8,477		99%	4.02%	2.76%	19	5%
4%	9,077		9,669		106.5%	9,359		92%	4.46%	3.14%	22	6%
4.5%	4,075		4,355		106.9%	4,332		88%	4.95%	3.53%	33	7%
5.0%	211		226		106.6%	229		65%	5.46%	3.84%	69	10%
≥ 5.5%	271		295		108.8%	298		36%	6.25%	3.46%	84	19%
Total 30-Year	22,395		23,832		106.4%	22,915		93%	4.41%	3.08%	24	6%
Total Fixed Rate	61,301		64,057		104.5%	62,961		69%	3.95%	2.68%	24	7%
Adjustable Rate	1,196		1,223		102.2%	1,235		—%	2.58%	2.41%	26	17%
CMO	1,280		1,313		102.6%	1,308		—%	4.30%	2.88%	21	7%
Total / Weighted Average	$	63,777	$	66,593	104.4%	$	65,504	66%	3.93%	2.68%	24	7%

	December 31, 2013
Agency MBS Remeasured at Fair Value Through Earnings	Underlying Unamortized Principal Balance		Amortized Cost		Fair Value		Weighted Average			Projected Life CPR 5
							Coupon 1	Yield 5	Age (Months)
Interest-Only Strips	$	1,379	$	223	$	232	5.50%	7.63%	45	11%
Principal-Only Strips	271		209		205		—%	3.84%	25	8%
Total / Weighted Average	$	1,650	$	432	$	437	4.59%	5.80%	35	9%

______________________

1. The weighted average coupon on our agency MBS classified as "AFS" held as of December 31, 2013 was 3.47% and the weighted average coupon on our total agency MBS portfolio, including agency MBS remeasured at fair value through earnings, held as of December 31, 2013 was 3.58%.

2. Lower loan balance securities represent pools backed by an original loan balance of up to ≤ $150,000. Our lower loan balance securities had a weighted average original loan balance of $100,000 and $95,000 for 15-year and 30-year securities, respectively, as of December 31, 2013.

3. HARP securities are defined as pools backed by100% refinance loans with LTVs ≥ 80%. Our HARP securities had a weighted average LTV of 106% and 105% for 15-year and 30-year securities, respectively, as of December 31, 2013.

4. WAC represents the weighted average coupon of the underlying collateral.

5. Portfolio yield incorporates a projected life CPR assumption based on forward rate assumptions as of December 31, 2013.

31

	December 31, 2013
TBA Securities	Notional  Amount Long / (Short) 1			Cost Basis 2			Market Value 3			Net Carrying Value 4
15-Year TBA securities
2.0%	$	(1,184	)	$	(1,174	)	$	(1,171	)	$	3
2.5%	(2,429		)	(2,481		)	(2,475		)	6
3.0%	(428		)	(450		)	(447		)	3
3.5%	(50		)	(53		)	(53		)	—
Total 15-Year TBAs	(4,091		)	(4,158		)	(4,146		)	12
30-Year TBA securities
3.0%	54			52			52			—
3.5%	600			598			598			—
4.0%	4,131			4,274			4,256			(18		)
4.5%	1,425			1,510			1,511			1
Total 30-Year TBAs	6,210			6,434			6,417			(17		)
Total net TBA securities	$	2,119		$	2,276		$	2,271		$	(5	)

 ________________________

1. Notional amount represents the par value (or principal balance) of the underlying agency security.

2. Cost basis represents the forward price to be paid (received) for the underlying agency security.

3. Market value represents the current market value of the TBA contract (or of the underlying agency security) as of period-end.

4. Net carrying value represents the difference between the market value and the cost basis of the TBA contract as of period-end and is reported in derivative assets / (liabilities), at fair value on the accompanying consolidated balance sheets.

As of March 31, 2014 and December 31, 2013, the combined weighted average yield of our agency MBS portfolio, inclusive of interest and principal-only strips, was 2.72% and 2.70%, respectively.

The stated contractual final maturity of the mortgage loans underlying our agency MBS portfolio ranges up to 40 years. As of March 31, 2014 and December 31, 2013, the weighted average final contractual maturity of our agency MBS portfolio was 20 and 19 years, respectively.

The actual maturities of agency MBS are generally shorter than their stated contractual maturities primarily as a result of prepayments of principal of the underlying mortgages. The weighted average expected maturity of our agency MBS portfolio was 5.2 and 6.5 years as of March 31, 2014 and December 31, 2013, respectively. In determining the estimated weighted average years to maturity of our agency MBS and the yield on our agency MBS, we have assumed a weighted average CPR over the remaining life of our agency MBS portfolio of 8% and 7% as of March 31, 2014 and December 31, 2013, respectively. We amortize or accrete premiums and discounts associated with purchases of our agency MBS into interest income over the estimated life of our securities based on actual and projected CPRs, using the effective yield method. Since the weighted average cost basis of our agency MBS portfolio, including principal and interest-only strips, was 104.8% of par value as of March 31, 2014, slower actual and projected prepayments can have a meaningful positive impact on our asset yields, while faster actual or projected prepayments can have a meaningful negative impact on our asset yields.

The following table summarizes our agency MBS classified as available-for-sale, at fair value, according to their estimated weighted average life classifications as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014						December 31, 2013
Estimated Weighted Average Life of Agency MBS Classified as Available-for-Sale 1	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield
≤ 1 year	$	27	$	25	2.49%	1.81%	$	129	$	129	3.07%	2.53%
> 1 year and ≤ 3 years	191		186		4.86%	3.29%	498		491		4.08%	2.25%
> 3 years and ≤ 5 years	22,947		22,758		3.55%	2.53%	24,471		24,342		3.59%	2.57%
> 5 years and ≤10 years	32,534		33,284		3.51%	2.80%	38,522		39,635		3.39%	2.73%
> 10 years	246		260		3.61%	2.87%	1,884		1,996		3.66%	2.96%
Total	$	55,945	$	56,513	3.53%	2.70%	$	65,504	$	66,593	3.47%	2.68%

32

 _______________________

1. Excludes interest and principal-only strips.

The weighted average life of our interest-only strips was 6.2 and 6.3 years as of March 31, 2014 and December 31, 2013, respectively, and the weighted average life of our principal-only strips was 8.3 and 8.6 years as of March 31, 2014 and December 31, 2013, respectively.

Our pass-through agency MBS collateralized by adjustable rate mortgage loans ("ARMs") have coupons linked to various indices. As of March 31, 2014 and December 31, 2013, our ARM securities had a weighted average next reset date of 63 months and 64 months, respectively.

The following table presents the gross unrealized loss and fair values of our available-for-sale agency securities by length of time that such securities have been in a continuous unrealized loss position as of March 31, 2014 and December 31, 2013 (in millions):

	Unrealized Loss Position For
	Less than 12 Months					12 Months or More					Total
Agency Securities Classified as Available-for-Sale	Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss
March 31, 2014	$	22,112	$	(442	)	$	8,673	$	(461	)	$	30,785	$	(903	)
December 31, 2013	$	42,853	$	(1,248	)	$	1,586	$	(101	)	$	44,439	$	(1,349	)

As of March 31, 2014, a decision had not been made to sell any of these agency securities and we do not believe it is more likely than not we will be required to sell the agency securities before recovery of their amortized cost basis. The unrealized losses on these agency securities are not due to credit losses given the GSE guarantees, but are rather due to changes in interest rates and prepayment expectations. Accordingly, we did not recognize any OTTI charges on our investment securities for the three months endedMarch 31, 2014. However, as we continue to actively manage our portfolio, we may recognize additional realized losses on our agency securities upon selecting specific securities to sell.

RESULTS OF OPERATIONS

In addition to the results presented in accordance with GAAP, our results of operations discussed below include certain non-GAAP financial information, including adjusted net interest expense, net spread and dollar roll income and estimated taxable income and certain financial metrics derived from non-GAAP information, such as cost of funds and estimated undistributed taxable income. By providing users of our financial information with such measures in addition to the related GAAP measures, we believe it gives users greater transparency into the information used by our management in its financial and operational decision-making and, in the case of estimated taxable income, information that is directly related to the amount of dividends we are required to distribute in order to maintain our REIT qualification status. However, because such measures are incomplete measures of our financial performance and involve differences from results computed in accordance with GAAP, they should be considered as supplementary to, and not as a substitute for, our results computed in accordance with GAAP. In addition, because not all companies use identical calculations, our presentation of such non-GAAP measures may not be comparable to other similarly-titled measures of other companies. Furthermore, estimated taxable income can include certain information that is subject to potential adjustments up to the time of filing our income tax returns, which occurs after the end of our fiscal year.

The following selected financial data is derived from our interim consolidated financial statements and the notes thereto. The tables below present our condensed consolidated balance sheets as of March 31, 2014 and December 31, 2013 and our condensed consolidated statements of comprehensive income and key statistics for the three months ended March 31, 2014 and 2013 (in millions, except per share amounts):

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Balance Sheet Data	March 31, 2014		December 31, 2013
	(unaudited)
Investment portfolio, at fair value	$	56,377	$	65,941
Total assets	$	67,318	$	76,255
Repurchase agreements and other debt	$	50,603	$	64,443
Total liabilities	$	58,504	$	67,558
Total stockholders' equity	$	8,814	$	8,697
Net asset value per common share as of period end 1	$	24.49	$	23.93

	Three Months Ended March 31,
Statement of Comprehensive Income Data (unaudited)	2014			2013
Interest income	$	399		$	547
Interest expense 2	108			140
Net interest income	291			407
Other loss, net 2	(397		)	(124		)
Expenses	35			42
(Loss) income before income tax	(141		)	241
Provision for income tax, net	—			10
Net (loss) income	(141		)	231
Dividend on preferred stock	3			3
Net (loss) income available (attributable) to common shareholders	$	(144	)	$	228
Net (loss) income	$	(141	)	$	231
Other comprehensive income (loss) 2	564			(788		)
Comprehensive income (loss)	423			(557		)
Dividend on preferred stock	3			3
Comprehensive income (loss) available (attributable) to common shareholders	$	420		$	(560	)
Weighted average number of common shares outstanding - basic and diluted	354.8			356.2
Net (loss) income per common share - basic and diluted	$	(0.41	)	$	0.64
Comprehensive income (loss) per common share - basic and diluted	$	1.18		$	(1.57	)
Dividends declared per common share	$	0.65		$	1.25
	Three Months Ended March 31,
Other Data (unaudited)	2014			2013
Average agency securities, at par	$	60,103		$	73,922
Average agency securities, at cost	$	62,920		$	78,009
Average total assets, at fair value	$	73,422		$	95,410
Average net TBA dollar roll position, at cost	$	4,534		$	17,892
Average repurchase agreements and other debt	$	57,544		$	70,591
Average stockholders' equity 3	$	8,975		$	10,843
Average coupon 4	3.60		%	3.68		%
Average asset yield 5	2.54		%	2.80		%
Average cost of funds 6	(1.35		)%	(1.28		)%
Average net interest rate spread	1.19		%	1.52		%
Average net interest rate spread, including estimated TBA dollar roll income 7	1.43		%	1.87		%

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Average coupon (as of period end)	3.65	%	3.73	%
Average asset yield (as of period end)	2.72	%	2.75	%
Average cost of funds (as of period end)8	(1.45	)%	(1.32	)%
Average net interest rate spread (as of period end)	1.27	%	1.43	%
Net comprehensive income (loss) return on average common equity - annualized 9	19.4	%	(21.3	)%
Economic (loss) return on common equity - annualized 10	20.5	%	(18.7	)%
Leverage (average during the period)11	6.7:1		6.5:1
Leverage, including net TBA dollar roll position (average during the period)12	7.2:1		8.2:1
Leverage (as of period end)13	5.9:1		5.7:1
Leverage, including net TBA dollar roll position (as of period end)14	7.6:1		8.1:1
Expenses % of average total assets - annualized	0.19	%	0.18	%
Expenses % of average assets, including average net TBA dollar roll position - annualized	0.18	%	0.15	%
Expenses % of average stockholders' equity - annualized	1.58	%	1.57	%

_______________________

* Except as noted below, average numbers for each period are weighted based on days on our books and records. All percentages are annualized.

1. Net asset value per common share calculated as our total stockholders' equity, less our 8.000% Series A Cumulative Redeemable Preferred Stock liquidation preference of $25 per preferred share, divided by our number of common shares outstanding as of period end.

2. We voluntarily discontinued hedge accounting for our interest rate swaps as of September 30, 2011. Please refer to our Interest Expense and Cost of Funds discussion further below and Notes 3 and 6 of our Consolidated Financial Statements in this Form 10-Q for additional information regarding our discontinuance of hedge accounting.

3. Average stockholders' equity calculated as our average month-end stockholders' equity during the period.

4. Average coupon for the period was calculated by dividing our total coupon (or cash) interest income on agency securities by our average agency securities held at par.

5. Average asset yield for the period was calculated by dividing our total cash interest income on agency securities, adjusted for amortization of premiums and discounts, by our average amortized cost of agency securities held.

6. Average cost of funds includes repurchase agreements, debt of consolidated variable interest entities ("VIEs") and interest rate swaps, but excludes interest rate swap termination fees and costs associated with other supplemental hedges such as interest rate swaptions and short U.S. Treasury or TBA positions. Average cost of funds for the period was calculated by dividing our total cost of funds by our average repurchase agreements and debt of consolidated VIEs outstanding for the period.

7. Estimated TBA dollar roll income / (loss) is net of short TBAs used for hedging purposes. Dollar roll income excludes the impact of other supplemental hedges, and is recognized in gain (loss) on derivative instruments and other securities, net.

8. Average cost of funds as of period end includes repurchase agreements and debt of consolidated VIEs outstanding, plus the impact of interest rate swaps in effect as of each period end and forward starting swaps becoming effective, net of swaps expiring, within three months of each period end, but excludes costs associated with other supplemental hedges such as swaptions, U.S. Treasuries and TBA positions.

9. Net comprehensive income (loss) return on average common equity for the period was calculated by dividing our comprehensive income/(loss) available /(attributable) to common shareholders by our average stockholders' equity, net of the 8.000% Series A Cumulative Redeemable Preferred Stock liquidation preference.

10. Economic return (loss) on common equity represents the sum of the change in our net asset value per common share and our dividends declared on common stock during the period over our beginning net asset value per common share.

11. Average leverage during the period was calculated by dividing our daily weighted average agency MBS repurchase agreements and debt of consolidated VIEs outstanding for the period by the sum of our average stockholders' equity less our average investment in REIT equity securities for the period. Leverage excludes U.S. Treasury repurchase agreements.

12. Average leverage, including net TBA dollar roll position, during the period includes the components of "leverage (average during the period)", plus our daily weighted average net TBA dollar position (at cost) during the period.

13. Leverage at period end was calculated by dividing the sum of the amount outstanding under our agency MBS repurchase agreements, net receivable / payable for unsettled agency securities and debt of consolidated VIEs by the sum of our total stockholders' equity less the fair value of investments in REIT equity securities at period end. Leverage excludes U.S. Treasury repurchase agreements.

14. Leverage at period end, including net TBA dollar roll position, includes the components of "leverage (as of period end)" plus our net TBA position outstanding as of period end, at cost.

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Interest Income and Asset Yield

The following table summarizes our interest income for the three months endedMarch 31, 2014 and 2013 (dollars in millions):

	Three Months Ended March 31,
	2014					2013
	Amount			Yield		Amount			Yield
Cash/coupon interest income	$	541		3.60	%	$	681		3.68	%
Premium amortization	(142		)	(1.06	)%	(134		)	(0.88	)%
Interest income	$	399		2.54	%	$	547		2.80	%
Actual portfolio CPR	7		%			10		%
Projected life CPR as of period end	8		%			9		%
Average 30-year fixed rate mortgage rate as of period end 1	4.40		%			3.57		%
10-year U.S. Treasury rate as of period end	2.72		%			1.85		%

 _______________________

1. Source: Freddie Mac Primary Fixed Mortgage Rate Mortgage Market Survey

The principal elements impacting our interest income are our average agency MBS portfolio size and the yield on our investments. Our average portfolio size decreased 19% for the current three month period compared to the prior year period, reflective of a smaller capital base largely due to repurchasing 12% of our outstanding common stock during the 12 month period ended March 31, 2014. We also experienced lower asset yields primarily due to the recognition of premium "catch-up" amortization expense of approximately $25 million during the current three month period compared to a "catch-up" benefit of approximately $32 million during the prior year period due to changes in our projected portfolio CPR. The following is a summary of the estimated impact of each of these elements on the decline in interest income between the three months endedMarch 31, 2014 and 2013 (in millions):

Three Months Ended March 31, 2014 vs. March 31, 2013
				Due to Change in Average 1
	Net Decrease			Portfolio Size			Asset Yield
Interest Income	$	(148	)	$	(100	)	$	(48	)

_______________________

1. Variances that are the combined effect of changes in portfolio size and asset yield, but cannot be separately identified, are allocated to the portfolio size and asset yield variances based on their respective relative amounts.

Leverage

Our leverage was 5.9 times and 7.3 times our stockholders' equity as of March 31, 2014 and December 31, 2013, respectively, measured as the sum of our agency MBS repurchase agreements, net receivable / payable for unsettled agency securities and debt of consolidated VIEs divided by the sum of our total stockholders' equity less the fair value of our investments in REIT equity securities as of period end. Since the individual agency mortgage REITs in which we invest employ similar leverage as within our agency portfolio, we acquire these securities on an unlevered basis and, therefore, exclude from our leverage measurements the portion of our stockholders' equity allocated to investments in other mortgage REITs. In addition, our measurement of leverage excludes repurchase agreements used to fund short-term investments in U.S. Treasury securities due to the highly liquid and temporary nature of these investments.

Inclusive of our net TBA position, our total "at risk" leverage was 7.6 times and 7.5 times our stockholders' equity as of March 31, 2014 and December 31, 2013, respectively. We recognize our TBA commitments as derivatives under GAAP and, thus, they are not included in our repurchase agreement ("repo") and other debt leverage calculations; however, a long TBA position carries similar risks as if we had purchased the underlying MBS assets and funded such purchases with on-balance sheet repurchase agreements. Similarly, a short TBA position has substantially the same effect as selling the underlying MBS assets and reducing our on-balance sheet repurchase commitments. (Refer to Liquidity and Capital Resources for further discussion of TBA dollar roll positions). Therefore, we commonly refer to our leverage adjusted for TBA positions as our "at risk" leverage.

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The table below presents our average and quarter-end repo and other debt balance, net TBA position and leverage ratios for the three months endedMarch 31, 2014 and December 31 and March 31, 2013 (dollars in millions):

	Repurchase Agreements and Other Debt 1						Net TBA Position Long / (Short) 2					Average Leverage during the Period 1,3	Average Total "At Risk" Leverage during the Period 1,4	Leverage as of Period End 1,5	"At Risk" Leverage as of Period End 1,6
Quarter Ended	Average Daily Amount		Maximum Daily Amount		Ending Amount		Average Daily Amount			Ending Amount
March 31, 2014	$	57,544	$	63,117	$	50,454	$	4,534		$	14,127	6.7:1	7.2:1	5.9:1	7.6:1
December 31, 2013	$	71,260	$	80,706	$	62,124	$	(486	)	$	2,276	7.6:1	7.5:1	7.3:1	7.5:1
March 31, 2013	$	70,591	$	75,580	$	67,122	$	17,892		$	27,294	6.5:1	8.2:1	5.7:1	8.1:1

_______________________

1. Excludes U.S. Treasury repo agreements.

2. Daily average and ending net TBA position outstanding measured at cost.

3. Average leverage during the period was calculated by dividing the sum of our daily weighted average agency repurchase agreements and debt of consolidated VIEs outstanding for the period by the sum of our average month-end stockholders' equity less our average investment in REIT equity securities for the period.

4. Average "at risk" leverage during the period includes the components of "average leverage during the period", plus our daily weighted average net TBA position (at cost) during the period.

5. Leverage as of period end was calculated by dividing the sum of the amount outstanding under our agency MBS repurchase agreements, net payables and receivables for unsettled agency MBS securities and debt of consolidated VIEs by the sum of our total stockholders' equity less the fair value of our investment in REIT equity securities at period end.

6. "At risk" leverage as of period end includes the components of "leverage as of period end" plus the cost basis (or contract price) of our net TBA position.

The decline in our repurchase agreement and other debt outstanding during the quarter ended March 31, 2014 was due to a decline in our average agency MBS position over the period and an increase in our net long TBA position, consequently our ending "at risk" leverage was largely unchanged over the quarter.

Interest Expense and Cost of Funds

Our interest expense is primarily comprised of interest expense on our repurchase agreements and the reclassification of accumulated OCI into interest expense related to previously de-designated interest rate swaps. Upon our election to discontinue hedge accounting under GAAP as of September 30, 2011, the net deferred loss related to our de-designated interest rate swaps remained in accumulated OCI and is being reclassified from accumulated OCI into interest expense on a straight-line basis over the remaining term of each interest rate swap.

Our "adjusted net interest expense," also referred to as our "cost of funds" when stated as a percentage of our outstanding repurchase agreements and other debt balance, includes periodic interest costs on our interest rate swaps reported in gain (loss) on derivatives and other securities, net in our consolidated statements of comprehensive income. Our cost of funds does not include swap termination fees and costs associated with our other supplemental hedges, such as swaptions and short U.S. Treasury positions. Our cost of funds also does not include costs associated with TBAs, including the implied financing cost/benefit of our net TBA dollar roll position.

The table below presents a reconciliation of our interest expense (the most comparable GAAP financial measure) to our adjusted net interest expense and cost of funds (non-GAAP financial measures) for the three months endedMarch 31, 2014 and 2013 (dollars in millions):

	Three Months Ended March 31,
	2014				2013
Adjusted Net Interest Expense and Cost of Funds	Amount		% 1		Amount		% 1
Interest expense:
Repurchase agreement and other debt interest expense	$	65	0.46	%	$	91	0.52	%
Periodic interest costs of interest rate swaps previously designated as hedges under GAAP, net	43		0.30	%	49		0.28	%
Total interest expense	108		0.76	%	140		0.80	%
Other periodic interest costs of interest rate swaps, net	83		0.59	%	84		0.48	%
Total adjusted net interest expense and cost of funds	$	191	1.35	%	$	224	1.28	%

 _______________________

1. Percent of our average repurchase agreements and other debt outstanding for the period annualized.

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The principal elements impacting our adjusted net interest expense are the size of our repurchase agreements and interest rate swap portfolio and our cost of funds. The following is a summary of the estimated impact of these elements on changes in our adjusted net interest expense for the three months endedMarch 31, 2014 and 2013 (in millions):

Three Months Ended March 31, 2014 vs. March 31, 2013
				Due to Change in Average 1
	Decrease			Repo / Swap Balance			Repo / Swap Rate
Repurchase agreements and other debt expense	$	(26	)	$	(16	)	$	(10	)
Periodic interest rate swap costs 2	(7		)	(11		)	4
Total change in adjusted net interest expense	$	(33	)	$	(27	)	$	(6	)

_______________________

1. Variances that are the combined effect of changes in our repurchase agreement/interest rate swap balance and changes in repurchase agreement/swap interest rates, but cannot be separately identified, are allocated to each variance based on their respective relative amounts.

2. Includes amounts recognized in interest expense and in gain (loss) on derivatives and other securities, net in our consolidated statements of comprehensive income. The change due to interest rate reflects the net impact of the change in the weighted average fixed pay and variable receive rates.

The current three month period decline in our adjusted net interest expense was largely a function of the decrease in our agency MBS portfolio and the corresponding decrease in our average repurchase agreements and other debt balances outstanding, which was partially offset by a higher average cost of funds of 1.35% for the current three month period compared to 1.28% for the prior year period. The increase in our costs of funds was reflective of higher average pay rates on our interest rate swaps and a modest increase in our interest rate swap balance relative to our repurchase agreements and other debt outstanding (excluding forward starting swaps), which was only partially offset by a decrease in our average repo rates. The table below presents a summary of our average repo and interest rates swaps outstanding for the three months endedMarch 31, 2014 and 2013 (dollars in millions):

	Three Months Ended March 31,
Average Debt and Interest Rate Swaps Outstanding	2014			2013
Average repurchase agreements and other debt	$	57,544		$	70,591
Average notional amount of interest rate swaps 1	$	37,201		$	44,717
Average notional amount of interest rate swaps as a percentage of repurchase agreements and other debt	65		%	63		%
Weighted average pay rate on interest rate swaps	1.58		%	1.46		%

 _______________________

1. Average notional amount of interest rate swaps excludes forward starting swaps not in effect during the periods presented.

Our average interest rate swaps outstanding in the table above exclude our forward starting swaps not in effect during the periods presented. Forward starting interest rate swaps do not impact our adjusted net interest expense and cost of funds until they commence accruing net interest settlements on their forward start dates. We enter into forward starting interest rate swaps based on a variety of factors, including our Manager's view of the forward yield curve and the timing of potential changes in short-term interest rates, time to deploy new capital, amount and timing of expirations of our existing interest swap portfolio, current and anticipated swap spreads and our desire to mitigate our exposure to specific sectors of the yield curve. As of March 31, 2014, we had $9.5 billion of forward starting interest rate swaps outstanding with a weighted average forward start date of 1.9 years through March 2019 and a weighted average fixed pay rate of 3.01%. As of March 31, 2013, we had $5.2 billion of forward starting interest rate swaps outstanding with forward start dates through September 2013.

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Net Spread Income and Dollar Roll Income

The table below presents a reconciliation of our net interest income (the most comparable GAAP financial measure) to our net spread and dollar roll income and to our net spread and dollar roll income, excluding estimated "catch-up" premium amortization(non-GAAP financial measures) for the three months endedMarch 31, 2014 and 2013 (dollars in millions):

	Three Months Ended March 31,
	2014			2013
Net interest income	$	291		$	407
Other periodic interest costs of interest rate swaps, net 1	(83		)	(84		)
Dividend on REIT equity securities	10			—
TBA dollar roll income 1	48			142
Adjusted net interest income	266			465
Operating expenses	35			42
Net spread and dollar roll income	231			423
Dividend on preferred stock	3			3
Net spread and dollar roll income available to common shareholders	228			420
Estimated "catch-up" premium amortization cost (benefit) due to change in CPR forecast	25			(32		)
Net spread and dollar roll income, excluding "catch-up" premium amortization, available to common shareholders	$	253		$	388
Weighted average number of common shares outstanding - basic and diluted	354.8			356.2
Net spread and dollar roll income per common share - basic and diluted	$	0.64		$	1.18
Net spread and dollar roll income, excluding "catch-up" premium amortization, per common share - basic and diluted	$	0.71		$	1.09

_______________________

1. Reported in gain (loss) on derivatives and other securities, net in our consolidated statements of comprehensive income.

The decline in net spread and dollar roll income per common share for the three months endedMarch 31, 2014 was primarily a function of lower leverage, lower asset yields and higher swap costs.

Gain (Loss) on Sale of Agency Securities, Net

The following table is a summary of our net gain (loss) on sale of agency MBS for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,
	2014			2013
Agency MBS sold, at cost	$	(9,711	)	$	(20,328	)
Proceeds from agency MBS sold 1	9,692			20,302
Net (loss) on sale of agency MBS	$	(19	)	$	(26	)
Gross gain on sale of agency MBS	$	42		$	87
Gross loss on sale of agency MBS	(61		)	(113		)
Net (loss) on sale of agency MBS	$	(19	)	$	(26	)

 _______________________

1. Proceeds include cash received during the period, plus receivable for agency MBS sold during the period as of period end.

Asset sales were primarily a function of repositioning our investment portfolio towards other agency MBS and TBA securities, with attributes that our Manager believed would provide greater relative value and risk-adjusted returns in light of current and anticipated interest rates, federal government programs, general economic conditions and other factors.

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Gain (Loss) on Derivative Instruments and Other Securities, Net

The following table is a summary of our gain (loss) on derivative instruments and other securities, net for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,
	2014			2013
Periodic interest costs of interest rate swaps, net 1	$	(83	)	$	(84	)
Realized gain on derivative instruments and other securities, net:
TBA securities 2	81			4
Payer swaptions	(81		)	(42		)
U.S. Treasury securities - long position	17			—
U.S. Treasury securities - short position	(11		)	75
U.S. Treasury futures - short position	(3		)	—
Interest rate swap termination fees	33			(24		)
REIT equity securities	19			—
Other	(2		)	—
Total realized gain on derivative instruments and other securities, net	53			13
Unrealized loss on derivative instruments and other securities, net: 3
TBA securities 2	(21		)	(106		)
Interest rate swaps	(330		)	162
Payer swaptions	(24		)	(2		)
Interest and principal-only strips	12			(1		)
U.S. Treasury securities - long position	55			—
U.S. Treasury securities - short position	(34		)	(78		)
U.S. Treasury futures - short position	(33		)	(15		)
Debt of consolidated VIEs	(3		)	13
REIT equity securities	30			—
Total unrealized loss on derivative instruments and other securities, net	(348		)	(27		)
Total loss on derivative instruments and other securities, net	$	(378	)	$	(98	)

_______________________

1. Please refer to Interest Expense and Cost of Funds discussion above for additional information regarding other periodic interest costs of interest rate swaps, net.

2. Gain (loss) from purchases and sales of TBA securities includes TBA dollar roll income (see Net Spread Income above) and net gains and losses due to changes in fair value.

3. Unrealized gain (loss) from derivative instruments and other securities, net includes reversals of prior period amounts for settled, terminated or expired derivative instruments and other securities.

Gains and losses from purchases and sales of TBAs totaled a net gain of $60 million for the three months endedMarch 31, 2014, consisting of $48 million of net TBA dollar roll income and a net gain of $12 million due to change in fair value.

For further details regarding our use of derivative instruments and related activity refer to Notes 3 and 6 of our consolidated financial statements in this Form 10-Q.

Management Fees and General and Administrative Expenses

We pay our Manager a base management fee payable monthly in arrears in an amount equal to one twelfth of 1.25% of our Equity. Our Equity is defined as our month-end stockholders' equity, adjusted to exclude the effect of any unrealized gains or losses included in either retained earnings or accumulated OCI, each as computed in accordance with GAAP. There is no incentive compensation payable to our Manager pursuant to the management agreement. We incurred management fees of $29 million for the current year three month period, which was a decrease of $4 million from $33 million for the prior year period due to a smaller equity capital base.

General and administrative expenses were $6 million and $9 million for the current and prior year three month period, respectively, and primarily consisted of prime broker fees, information technology costs, accounting fees, legal fees, Board of Director fees, insurance expense and general overhead expense. The year over year three month period decline was due to a smaller average portfolio size.

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Our total operating expense as a percentage of our average stockholders' equity was 1.58% and 1.57% for the current and prior year three month period, respectively.

Dividends and Income Taxes

For the three months endedMarch 31, 2014 and 2013, we had estimated taxable income available to common shareholders of $167 million and $177 million (or $0.47 and $0.50 per common share), respectively.

As a REIT, we are required to distribute annually 90% of our taxable income to maintain our status as a REIT and all of our taxable income to avoid Federal and state corporate income taxes. We can treat dividends declared by September 15 and paid by December 31 as having been a distribution of our taxable income for our prior tax year ("spill-back provision"). Income as determined under GAAP differs from income as determined under tax rules because of both temporary and permanent differences in income and expense recognition. The primary differences are (i) unrealized gains and losses associated with interest rate swaps and other derivatives and securities marked-to-market in current income for GAAP purposes, but excluded from taxable income until realized or settled, (ii) timing differences, both temporary and potentially permanent, in the recognition of certain realized gains and losses and (iii) temporary differences related to the amortization of net premiums paid on investments. Furthermore, our estimated taxable income is subject to potential adjustments up to the time of filing our appropriate tax returns, which occurs after the end of our fiscal year.

The following is a reconciliation of our GAAP net income to our estimated taxable income for the three months endedMarch 31, 2014 and 2013 (dollars in millions).

	Three Months Ended March 31,
	2014			2013
Net income	$	(141	)	$	231
Estimated book to tax differences:
Premium amortization, net	31			(34		)
Realized losses (gains), net	36			(53		)
Capital loss carryforward	(102		)	—
Unrealized loss, net	346			30
Other	—			6
Total book to tax differences	311			(51		)
Estimated REIT taxable income	170			180
Dividend on preferred stock	3			3
Estimated REIT taxable income available to common shareholders	$	167		$	177
Weighted average number of common shares outstanding - basic and diluted	354.8			356.2
Estimated REIT taxable income per common share - basic and diluted	$	0.47		$	0.50
Beginning cumulative non-deductible capital losses	$	1,785		$	—
Capital loss carryforward	(102		)	—
Ending cumulative non-deductible capital losses	$	1,683		$	—
Ending cumulative non-deductible capital losses per common share	$	4.77		$	—

Taxable income for the three months endedMarch 31, 2014 excludes $102 million of estimated net capital gains, which were applied against our prior year net capital loss carryforward.

During the three months endedMarch 31, 2014 and 2013, we declared common dividends of $0.65 and $1.25 per common share, respectively, and Series A Preferred Stock dividends of $0.50 per preferred share, respectively.

We have distributed all of our 2013 taxable income within the allowable time frame, including the available spill-back provision, so that we will not be subject to federal or state corporate income tax. As of March 31, 2014, we had an estimated $146 million of current year undistributed taxable income, net of our March 31, 2014 common dividend payable of $229 million. Our undistributed taxable income excludes $1.7 billion, or $4.77 per common share, of remaining prior year non-deductible net capital losses, which may be applied against future capital gains through 2018.

Our TRS is subject to corporate federal and state income taxes at the combined federal and state corporate statutory tax rate of 39.5%. For the three months endedMarch 31, 2014, we recorded no provision for income taxes attributable to our TRS. For

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the three months endedMarch 31, 2013, we recorded an income tax provision of $10 million attributable to our TRS, which is included in our net income tax provision on our accompanying consolidated statements of comprehensive income.

Other Comprehensive Income

The following table summarizes the components of our other comprehensive income for the three months ended March 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,
	2014		2013
Unrealized gain (loss) on AFS securities, net:
Unrealized gain (loss), net	$	502	$	(863	)
Reversal of prior period unrealized loss, net, upon realization	19		26
Unrealized gain (loss) on AFS securities, net:	521		(837		)
Unrealized gain on interest rate swaps designated as cash flow hedges:
Reversal of prior period unrealized loss on interest rate swaps, net, upon reclassification to interest expense	43		49
Total other comprehensive income (loss)	$	564	$	(788	)

LIQUIDITY AND CAPITAL RESOURCES

Our primary sources of funds are borrowings under master repurchase agreements, equity offerings, asset sales and monthly principal and interest payments on our investment portfolio. Because the level of our borrowings can be adjusted on a daily basis, the level of cash and cash equivalents carried on our balance sheet is significantly less important than the potential liquidity available under our borrowing arrangements. We currently believe that we have sufficient liquidity and capital resources available for the acquisition of additional investments, repayments on borrowings, maintenance of any margin requirements and the payment of cash dividends as required for our continued qualification as a REIT. To qualify as a REIT, we must distribute annually at least 90% of our net taxable income. To the extent that we annually distribute all of our net taxable income in a timely manner, we will generally not be subject to federal and state income taxes. We currently expect to distribute all of our taxable income in a timely manner so that we are not subject to federal and state income taxes. This distribution requirement limits our ability to retain earnings and thereby replenish or increase capital from operations.

Equity Capital

To the extent we raise additional equity capital through follow-on equity offerings, through our at-the-market offering program or under our dividend reinvestment and direct stock purchase plan, we currently anticipate using cash proceeds from such transactions to purchase additional investment securities, to make scheduled payments of principal and interest on our repurchase agreements and for other general corporate purposes.  There can be no assurance, however, that we will be able to raise additional equity capital at any particular time or on any particular terms.

Common Stock Repurchase Program

In October 2012, our Board of Directors adopted a program that provides for stock repurchases of up to $500 million of our outstanding shares of common stock through December 31, 2013.  In September 2013, our Board of Directors increased the authorized amount to $1 billion of our outstanding shares of common stock and extended its authorization through December 31, 2014. In January 2014, our Board of Directors increased the authorized amount by an additional $1 billion of our outstanding shares of common stock through December 31, 2014. Shares of our common stock may be purchased in the open market, including through block purchases, or through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.  The timing, manner, price and amount of any repurchases will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason.  We intend to repurchase shares only when the purchase price is less than our estimate of our current net asset value per share of our common stock. Generally, when we repurchase our common stock at a discount to our net asset value, the net asset value of our remaining shares of common stock outstanding increases. In addition, we do not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate us to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

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During the three months ended March 31, 2014, we repurchased approximately 3.4 million shares of our common stock at an average repurchase price of $22.10 per share, including expenses, totaling $74 million. As of March 31, 2014, the total remaining amount authorized for repurchases of our common stock was $992 million.

Debt Capital

As part of our investment strategy, we borrow against our investment portfolio pursuant to master repurchase agreements. We expect that our borrowings under such master repurchase agreements will generally have maturities ranging up to one year, but may have maturities up to five years or longer. Our leverage may vary periodically depending on market conditions and our Manager's assessment of risks and returns. We generally would expect our leverage to be within six to eleven times the amount of our stockholders' equity. However, under certain market conditions, we may operate at leverage levels outside of this range for extended periods of time. Our leverage as of March 31, 2014 was 5.9 times our stockholders' equity, measured as the sum of our agency MBS repurchase agreements, net receivable / payable for unsettled agency securities and debt of consolidated VIEs divided by the sum of our total stockholders' equity less the fair value of our investment in REIT equity securities as of period end. Since the individual agency mortgage REITs in which we invest employ similar leverage as within our agency portfolio, we acquire these securities on an unlevered basis and, therefore, exclude from our leverage measurements the portion of our stockholders' equity allocated to investments in other mortgage REITs. In addition, our measurement of leverage excludes repurchase agreements used to fund short-term investments in U.S. Treasury securities due to the highly liquid and temporary nature of these investments.

As of March 31, 2014, our agency MBS repurchase agreements had a weighted average cost of funds of 0.43% and a weighted average remaining days-to-maturity of 162 days, excluding amounts borrowed under U.S. Treasury repurchase agreements.

To limit our exposure to counterparty credit risk, we diversify our funding across multiple counterparties and by counterparty region. As of March 31, 2014, we had master repurchase agreements with 34 financial institutions, subject to certain conditions, located throughout North America, Europe and Asia. As of March 31, 2014, less than 4% of our stockholders' equity was at risk with any one repo counterparty, with the top five repo counterparties representing approximately 12% of our stockholders' equity. The table below includes a summary of our repurchase agreement funding by number of repo counterparties and counterparty region as of March 31, 2014. For further details regarding our borrowings under repurchase agreements and other debt as of March 31, 2014, please refer to Note 5 to our consolidated financial statements in this Form 10-Q.

	March 31, 2014
Counter-Party Region	Number of Counter-Parties	Percent of Repurchase Agreement Funding
North America	18	64%
Asia	5	13%
Europe	11	23%
	34	100%

Amounts available to be borrowed under our repurchase agreements are dependent upon lender collateral requirements and the lender's determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, credit quality and liquidity conditions within the investment banking, mortgage finance and real estate industries. In addition, our counterparties apply a "haircut" to our pledged collateral, which means our collateral is valued at slightly less than market value. This haircut reflects the underlying risk of the specific collateral and protects our counterparty against a change in its value, but conversely subjects us to counterparty risk and limits the amount we can borrow against our investment securities. Our master repurchase agreements do not specify the haircut; rather haircuts are determined on an individual repurchase transaction basis. Throughout the three months endedMarch 31, 2014, haircuts on our pledged collateral remained stable and as of March 31, 2014, our weighted average haircut was approximately 5% of the value of our collateral.

Under our repurchase agreements, we may be required to pledge additional assets to the repurchase agreement counterparties in the event the estimated fair value of the existing pledged collateral under such agreements declines and such counterparties demand additional collateral (a "margin call"), which may take the form of additional securities or cash. Specifically, margin calls would result from a decline in the value of our agency securities securing our repurchase agreements and prepayments on the mortgages securing such agency securities. Similarly, if the estimated fair value of our investment securities increases due to changes in interest rates or other factors, counterparties may release collateral back to us. Our repurchase agreements generally provide that the valuations for the agency MBS securing our repurchase agreements are to be obtained from a generally recognized

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source agreed to by the parties. However, in certain circumstances under certain of our repurchase agreements our lenders have the sole discretion to determine the value of the agency MBS securing our repurchase agreements. In such instances, our lenders are required to act in good faith in making determinations of value. Our repurchase agreements generally provide that in the event of a margin call, we must provide additional securities or cash on the same business day that a margin call is made if the lender provides us notice prior to the margin notice deadline on such day.

As of March 31, 2014, we had met all of our margin requirements and we had unrestricted cash and cash equivalents of $1.7 billion and unpledged securities of approximately $2.1 billion, including securities pledged to us, available to meet margin calls on our repurchase agreements and derivative instruments and for other corporate purposes.

Although we believe we will have adequate sources of liquidity available to us through repurchase agreement financing to execute our business strategy, there can be no assurances that repurchase agreement financing will be available to us upon the maturity of our current repurchase agreements to allow us to renew or replace our repurchase agreement financing on favorable terms or at all. If our repurchase agreement lenders default on their obligations to resell the underlying collateral back to us at the end of the term, we could incur a loss equal to the difference between the value of the collateral and the cash we originally received.

To help manage the adverse impact of interest rate changes on the value of our investment portfolio as well as our cash flows, we utilize an interest rate risk management strategy under which we use derivative financial instruments. In particular, we attempt to mitigate the risk of the cost of our variable rate liabilities increasing at a faster rate than the earnings of our long-term fixed rate assets during a period of rising interest rates. The principal derivative instruments that we use are interest rate swaps, supplemented with the use of interest rate swaptions, TBA securities, U.S. Treasury securities, U.S. Treasury futures contracts and other instruments. Please refer to Notes 3 and 6 to our consolidated financial statements in this Form 10-Q for further details regarding our use of derivative instruments.

Our derivative agreements typically require that we pledge/receive collateral on such agreements to/from our counterparties in a similar manner as we are required to under our repurchase agreements. Our counterparties, or the clearing agency in the case of centrally cleared interest rate swaps, typically have the sole discretion to determine the value of the derivative instruments and the value of the collateral securing such instruments. In the event of a margin call, we must generally provide additional collateral on the same business day.

Similar to repurchase agreements, our use of derivatives exposes us to counterparty credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. We minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings and by monitoring positions with individual counterparties.

Excluding centrally cleared interest rate swaps, as of March 31, 2014, our amount at risk with any counterparty related to our interest rate swap and swaption agreements was less than 1% of our stockholders' equity.

In the case of centrally cleared interest rate swap contracts, we could be exposed to credit risk if the central clearing agency or a clearing member defaults on its respective obligation to perform under the contract. However, we believe that the risk is minimal due to the exchange's initial and daily mark to market margin requirements and a clearinghouse guarantee fund and other resources that are available in the event of a clearing member default.

TBA Dollar Roll Transactions

We may also enter into TBA dollar roll transactions as a means of leveraging (long TBAs) or deleveraging (short TBAs) our investment portfolio. TBA dollar roll transactions represent a form of off-balance sheet financing and are accounted for as derivative instruments in our accompanying consolidated financial statements in this Form 10-Q. Inclusive of our net TBA position, as of March 31, 2014, our total "at risk" leverage was 7.6 times our stockholders' equity.

Under certain market conditions, it may be uneconomical for us to roll our TBA contracts into future months and we may need to take or make physical delivery of the underlying securities. If we were required to take physical delivery to settle a long TBA contract, we would have to fund our total purchase commitment with cash or other financing sources and our liquidity position could be negatively impacted. As of March 31, 2014, we had a net long TBA position with a market value and a total contract price of $14.1 billion and a total carrying value of $(25) million recognized in derivative assets/(liabilities), at fair value on our consolidated balance sheets in this Form 10-Q.

Our TBA dollar roll contracts are also subject to margin requirements governed by the Mortgage-Backed Securities Division ("MBSD") of the Fixed Income Clearing Corporation and by our prime brokerage agreements, which may establish margin levels in excess of the MBSD. Such provisions require that we establish an initial margin based on the notional value of the TBA contract, which is subject to increase if the estimated fair value of our TBA contract or the estimated fair value of our pledged collateral

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declines. The MBSD has the sole discretion to determine the value of our TBA contracts and of the pledged collateral securing such contracts. In the event of a margin call, we must generally provide additional collateral on the same business day.

Settlement of our TBA obligations by taking delivery of the underlying securities as well as satisfying margin requirements could negatively impact our liquidity position. However, since we do not use TBA dollar roll transactions as our primary source of financing, we believe that we will have adequate sources of liquidity to meet such obligations.

Asset Sales and TBA Eligible Securities

We maintain a portfolio of highly liquid agency MBS securities. We may sell our agency MBS securities through the TBA market by delivering securities into TBA contracts for the sale of agency securities, subject to "good delivery" provisions promulgated by the Securities Industry and Financial Markets Association ("SIFMA"). We may alternatively sell agency MBS securities that have more unique attributes on a specified basis when such securities trade at a premium over generic TBA securities or if the securities are not otherwise eligible for TBA delivery. Since the TBA market is the second most liquid market (second to the U.S. Treasury market), maintaining a significant level of agency MBS securities eligible for TBA delivery enhances our liquidity profile and provides price support for our TBA eligible securities in a rising interest rate scenario at or above generic TBA prices. As of March 31, 2014, approximately 94% of our fixed rate agency MBS portfolio was eligible for TBA delivery.

Off-Balance Sheet Arrangements

As of March 31, 2014, we did not maintain any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance, or special purpose or variable interest entities, established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Further, as of March 31, 2014, we had not guaranteed any obligations of unconsolidated entities or entered into any commitment or intent to provide funding to any such entities.

FORWARD-LOOKING STATEMENTS

This document contains "forward-looking statements" (within the meaning of the Private Securities Litigation Reform Act of 1995) that inherently involve risks and uncertainties. Our actual results and liquidity can differ materially from those anticipated in these forward-looking statements because of changes in the level and composition of our investments and other factors. These factors may include, but are not limited to, changes in general economic conditions, the availability of suitable investments from both an investment return and regulatory perspective, the availability of new investment capital, fluctuations in interest rates and levels of mortgage prepayments, deterioration in credit quality and ratings, the effectiveness of risk management strategies, the impact of leverage, liquidity of secondary markets and credit markets, increases in costs and other general competitive factors.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Market risk is the exposure to loss resulting from changes in market factors such as interest rates, foreign currency exchange rates, commodity prices and equity prices. The primary market risks that we are exposed to are interest rate risk, prepayment risk, spread risk, liquidity risk, extension risk and counterparty credit risk.

Interest Rate Risk

Interest rate risk is highly sensitive to many factors, including governmental monetary and tax policies, domestic and international economic and political considerations and other factors beyond our control.

Changes in the general level of interest rates can affect our net interest income, which is the difference between the interest income earned on interest-earning assets and the interest expense incurred in connection with our interest-bearing liabilities, by affecting the spread between our interest-earning assets and interest-bearing liabilities. Changes in the level of interest rates can also affect the rate of prepayments of our securities and the value of the agency securities that constitute our investment portfolio, which affects our net income and ability to realize gains from the sale of these assets and impacts our ability and the amount that we can borrow against these securities.

We may utilize a variety of financial instruments in order to limit the effects of changes in interest rates on our operations. The principal instruments that we use are interest rate swaps and options to enter into interest rate swaps. We also utilize forward contracts for the purchase or sale of agency MBS securities on a generic pool basis, or a TBA contract, and on a non-generic, specified pool basis, and we utilize U.S. Treasury securities and U.S. Treasury futures contracts, primarily through short sales. We may also purchase or write put or call options on TBA securities and we may invest in other types of mortgage derivatives,

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such as interest and principal-only securities. Derivative instruments may expose us to certain risks, including the risk that losses on a hedge position will reduce the funds available for payments to holders of our common stock and that the losses may exceed the amount we invested in the instruments.

Our profitability and the value of our investment portfolio (including derivatives used for hedging purposes) may be adversely affected during any period as a result of changing interest rates including changes in the forward yield curve.

Primary measures of an instrument's price sensitivity to interest rate fluctuations are its duration and convexity. The duration of our investment portfolio changes with interest rates and tends to increase when rates rise and decrease when rates fall. This "negative convexity" generally increases the interest rate exposure of our investment portfolio in excess of what is measured by duration alone.

We estimate the duration and convexity of our portfolio using both a third-party risk management system and market data. We review the duration estimates from the third-party model and may make adjustments based on our Manager's judgment. These adjustments are intended to, in our Manager's opinion, better reflect the unique characteristics and market trading conventions associated with certain types of securities.

Further, since we do not control the other agency mortgage REITs in which we invest in, we have limited transparency into their underlying investment and hedge portfolios. Therefore, our Manager must make certain assumptions to estimate the duration and convexity of the underlying portfolios and their sensitivity to changes in interest rates. Such estimates do not include the potential impact of other factors which may affect the fair value of our investments in other REITs, such as stock market volatility. Accordingly, actual results could differ from our estimates.

The table below quantifies the estimated changes in net interest income (including periodic interest costs on our interest rate swaps) and the estimated changes in the fair value of our investment portfolio (including derivatives and other securities used for hedging purposes) and in our net asset value as of March 31, 2014 and December 31, 2013 should interest rates go up or down by 50 and 100 basis points, assuming instantaneous parallel shifts in the yield curve and including the impact of both duration and convexity.

All changes in income and value in the table below are measured as percentage changes from the projected net interest income, investment portfolio value and net asset value at the base interest rate scenario. The base interest rate scenario assumes interest rates and prepayment projections as of March 31, 2014 and December 31, 2013. We apply a floor of 0% for the down rate scenarios on our interest bearing liabilities and the variable leg of our interest rate swaps, such that any hypothetical interest rate decrease would have a limited positive impact on our funding costs beyond a certain level.

Actual results could differ materially from estimates, especially in the current market environment. To the extent that these estimates or other assumptions do not hold true, which is likely in a period of high price volatility, actual results will likely differ materially from projections and could be larger or smaller than the estimates in the table below. Moreover, if different models were employed in the analysis, materially different projections could result. Lastly, while the table below reflects the estimated impact of interest rate increases and decreases on a static portfolio, we may from time to time sell any of our agency securities as a part of our overall management of our investment portfolio.

Interest Rate Sensitivity 1
	Percentage Change in Projected
Change in Interest Rate	Net Interest Income 2	Portfolio Market  Value 3,4	Net Asset Value 3,5
As of March 31, 2014
-100 Basis Points	-2.6%	+0.4%	+3.2%
-50 Basis Points	+3.2%	+0.5%	+3.9%
+50 Basis Points	+1.2%	-0.7%	-5.8%
+100 Basis Points	+1.9%	-1.5%	-12.2%
As of December 31, 2013
-100 Basis Points	+1.8%	+1.1%	+9.0%
-50 Basis Points	+6.8%	+0.8%	+6.1%
+50 Basis Points	-3.6%	-0.8%	-6.4%
+100 Basis Points	-7.2%	-1.7%	-13.1%

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________________

1. Interest rate sensitivity is derived from models that are dependent on inputs and assumptions provided by third parties as well as by our Manager, assumes there are no changes in mortgage spreads and assumes a static portfolio. Actual results could differ materially from these estimates.

2. Represents the estimated dollar change in net interest income expressed as a percent of net interest income based on asset yields and cost of funds as of such date. It includes the effect of periodic interest costs on our interest rate swaps, but excludes costs associated with our other supplemental hedges, such as swaptions and U.S. Treasury securities. Also excludes costs associated with our TBA position and TBA dollar roll income/loss. Base case scenario assumes interest rates and forecasted CPR of 8% and 7% as of March 31, 2014 and December 31, 2013, respectively. As of March 31, 2014, rate shock scenarios assume a forecasted CPR of 11%, 9%, 7% and 7% for the -100, -50, +50 and +100 basis points scenarios, respectively. As of December 31, 2013, rate shock scenarios assume a forecasted CPR of 10%, 8%, 7% and 6% for such scenarios, respectively. Estimated dollar change in net interest income does not include the one time impact of retroactive "catch-up" premium amortization benefit/cost due to a decrease/increase in the forecasted CPR and does not include dividend income from investments in other REITs. Down rate scenarios assume a floor of 0% for anticipated interest rates.

3. Includes the effect of derivatives and other securities used for hedging purposes.

4. Estimated dollar change in investment portfolio value expressed as a percent of the total fair value of our investment portfolio as of such date.

5. Estimated dollar change in portfolio value expressed as a percent of stockholders' equity, net of the Series A Preferred Stock liquidation preference, as of such date.

The change in our interest rate sensitivity as of March 31, 2014 compared to December 31, 2013 was a function of a flatter yield curve, partially mitigated by changes in the size and composition of our asset and hedge portfolio.

Prepayment Risk

Because residential borrowers have the option to prepay their mortgage loans at par at any time, we face the risk that we will experience a return of principal on our investments faster than anticipated. Various factors affect the rate at which mortgage prepayments occur, including changes in the level of and directional trends in housing prices, interest rates, general economic conditions, loan age and size, loan-to-value ratio, the location of the property and social and demographic conditions. Additionally, changes to GSE underwriting practices or other governmental programs could also significantly impact prepayment rates or expectations. Also, the pace at which the loans underlying our securities become seriously delinquent or are modified and the timing of GSE repurchases of such loans from our securities can materially impact the rate of prepayments. Generally, prepayments on agency MBS increase during periods of falling mortgage interest rates and decrease during periods of rising mortgage interest rates. However, this may not always be the case.

We may reinvest principal repayments at a yield that is lower or higher than the yield on the repaid investment, thus affecting our net interest income by altering the average yield on our assets. We also amortize or accrete premiums and discounts associated with the purchase of agency MBS into interest income over the projected lives of the securities, including contractual payments and estimated prepayments using the interest method. Our policy for estimating prepayment speeds for calculating the effective yield is to evaluate published prepayment data for similar agency securities, market consensus and current market conditions. If the actual prepayment experienced differs from our estimate of prepayments, we will be required to make an adjustment to the amortization or accretion of premiums and discounts that would have an impact on future income.

Spread Risk

When the market spread widens between the yield on our agency securities and benchmark interest rates, our net book value could decline if the value of our agency securities fall by more than the offsetting fair value increases on our hedging instruments tied to the underlying benchmark interest rates. We refer to this as "spread risk" or "basis risk." The spread risk associated with our mortgage assets and the resulting fluctuations in fair value of these securities can occur independent of changes in benchmark interest rates and may relate to other factors impacting the mortgage and fixed income markets, such as actual or anticipated monetary policy actions by the Federal Reserve, market liquidity, or changes in required rates of return on different assets. Consequently, while we use interest rate swaps and other supplemental hedges to attempt to protect against moves in interest rates, such instruments typically will not protect our net book value against spread risk.

The table below quantifies the estimated changes in the fair value of our investment portfolio (including derivatives and other securities used for hedging purposes) and in our net asset value as of March 31, 2014 and December 31, 2013 should spreads between our mortgage assets and benchmark interest rates go up or down by 10 and 25 basis points. These estimated impacts of spread changes are in addition to our sensitivity to interest rate shocks included in the interest rate shock table above. The table below assumes a spread duration of 5.0 years and 5.5 years based on interest rates and MBS prices as of March 31, 2014 and December 31, 2013, respectively. However, our portfolio's sensitivity of mortgage spread changes will vary with changes in interest rates and will generally increase as interest rates rise and prepayments slow. Additionally, we have limited transparency into the underlying investment and hedge portfolios of the other agency mortgage REITs in which we invest. Therefore, actual results could differ materially from our estimates.

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Spread Sensitivity of Agency MBS Portfolio 1
	Percentage Change in Projected
Change in MBS Spread	Portfolio Market Value 2,3	Net Asset Value 2,4
As of March 31, 2014
-25 Basis Points	+1.3%	+10.2%
-10 Basis Points	+0.5%	+4.1%
+10 Basis Points	-0.5%	-4.1%
+25 Basis Points	-1.3%	-10.2%
As of December 31, 2013
-25 Basis Points	+1.3%	+10.1%
-10 Basis Points	+0.5%	+4.1%
+10 Basis Points	-0.5%	-4.1%
+25 Basis Points	-1.3%	-10.1%

________________

1. Spread sensitivity is derived from models that are dependent on inputs and assumptions provided by third parties as well as by our Manager, assumes there are no changes in interest rates and assumes a static portfolio. Actual results could differ materially from these estimates.

2. Includes the effect of derivatives and other securities used for hedging purposes.

3. Estimated dollar change in investment portfolio value expressed as a percent of the total fair value of our investment portfolio as of such date.

4. Estimated dollar change in portfolio value expressed as a percent of stockholders' equity, net of the Series A Preferred Stock liquidation preference, as of such date.

Liquidity Risk

The primary liquidity risk for us arises from financing long-term assets with shorter-term borrowings through repurchase agreements. Our assets that are pledged to secure repurchase agreements are agency securities, U.S. Treasury securities and cash. As of March 31, 2014, we had unrestricted cash and cash equivalents of $1.7 billion and unpledged securities of approximately $2.1 billion, including securities pledged to us, available to meet margin calls on our repurchase agreements and derivative contracts and for other corporate purposes. However, should the value of our collateral or the value of our derivative instruments suddenly decrease, margin calls relating to our repurchase and derivative agreements could increase, causing an adverse change in our liquidity position. Further, there is no assurance that we will always be able to renew (or roll) our repurchase agreements. In addition, our counterparties have the option to increase our haircuts (margin requirements) on the assets we pledge, against repurchase agreements thereby reducing the amount that can be borrowed against an asset even if they agree to renew or roll the repurchase agreement. Significantly higher haircuts can reduce our ability to leverage our portfolio or even force us to sell assets, especially if correlated with asset price declines or faster prepayment rates on our assets.

In addition, we may utilize TBA dollar roll transactions as a means of investing in and financing agency mortgage-backed securities. Under certain economic conditions it may be uneconomical to roll our TBA dollar roll transactions prior to the settlement date and we could have to take physical delivery of the underlying securities and settle our obligations for cash, which could negatively impact our liquidity position, result in defaults or force us to sell assets under adverse conditions.

Extension Risk

The projected weighted-average life and the duration (or interest rate sensitivity) of our investments is based on our Manager's assumptions regarding the rate at which the borrowers will prepay the underlying mortgage loans. In general, we use interest rate swaps and swaptions to help manage our funding cost on our investments in the event that interest rates rise. These swaps (or swaptions) allow us to reduce our funding exposure on the notional amount of the swap for a specified period of time by establishing a fixed rate to pay in exchange for receiving a floating rate that generally tracks our financing costs under our repurchase agreements.

However, if prepayment rates decrease in a rising interest rate environment, the average life or duration of our fixed rate assets or the fixed rate portion of the ARMs or other assets generally extends. This could have a negative impact on our results from operations, as our interest rate swap maturities are fixed and will, therefore, cover a smaller percentage of our funding exposure on our mortgage assets to the extent that their average lives increase due to slower prepayments. This situation may also cause the market value of our agency securities collateralized by fixed rate mortgages or hybrid ARMs to decline by more than otherwise would be the case while most of our hedging instruments (with the exception of short TBA mortgage positions, interest-

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only securities and certain other supplemental hedging instruments) would not receive any incremental offsetting gains. In extreme situations, we may be forced to sell assets to maintain adequate liquidity, which could cause us to incur realized losses.

Counterparty Credit Risk

We are exposed to counterparty credit risk relating to potential losses that could be recognized in the event that the counterparties to our repurchase agreements and derivative contracts fail to perform their obligations under such agreements. The amount of assets we pledge as collateral in accordance with our agreements varies over time based on the market value and notional amount of such assets as well as the value of our derivative contracts. In the event of a default by a counterparty, we may not receive payments provided for under the terms of our agreements and may have difficulty obtaining our assets pledged as collateral under such agreements. Our credit risk related to certain derivative transactions is largely mitigated through daily adjustments to collateral pledged based on changes in market value and we limit our counterparties to major financial institutions with acceptable credit ratings. However, there is no guarantee our efforts to manage counterparty credit risk will be successful and we could suffer significant losses if unsuccessful.

Item 4. Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our Securities Exchange Act of 1934, as amended (the "Exchange Act") reports is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms, and that such information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure based on the definition of "disclosure controls and procedures" as promulgated under the Exchange Act and the rules and regulations thereunder. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

We, including our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of the design and operation of our disclosure controls and procedures as of March 31, 2014. Based on the foregoing, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective.

Changes in Internal Controls over Financial Reporting

There have been no changes in our "internal control over financial reporting" (as defined in Rule 13a-15(f) of the Exchange Act) that occurred during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

From time to time, we may be involved in various claims and legal actions arising in the ordinary course of business. Neither we, nor any of our consolidated subsidiaries, are currently subject to any material litigation nor, to our knowledge, is any material litigation threatened against us or any consolidated subsidiary.

Item 1A. Risk Factors

There have been no material changes to the risk factors previously disclosed in our Annual Report on Form 10-K for the year ended December 31, 2013.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Stock Repurchase Program

The following table presents information with respect to purchases of our common stock made during the first quarter ended March 31, 2014 by us or any "affiliated purchaser" of us, as defined in Rule 10b-18(a)(3) under the Exchange Act (in millions, except per share amounts):

Settlement Date	Total Number of Shares Purchased	Average Net Price Paid Per Share	Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs 1	Maximum Number of Shares That May Yet Be Purchased Under the Publicly Announced Plans or Programs
February 10 - 26, 2014	1.9	$21.98	1.9	N/A
March 3 - 17, 2014	1.5	$22.24	1.5	N/A
First Quarter 2014	3.4	$22.10	3.4	N/A

___________________________

1. All shares were purchased by us pursuant to the stock repurchase program described in Note 9 of our accompanying Consolidated Financial Statements in this Form 10-Q.

2. In October 2012, our Board of Directors adopted a program that provides for stock repurchases of up to $500 million of our outstanding shares of common stock through December 31, 2013.  In September 2013, our Board of Directors increased the authorized amount to $1 billion of our outstanding shares of common stock and extended its authorization through December 31, 2014. In January 2014, our Board of Directors increased the authorized amount by an additional $1 billion of our outstanding shares of common stock through December 31, 2014. As of March 31, 2014, the total remaining amount authorized for repurchases of our common stock was $992 million.

Item 3. Defaults upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

Item 6.     Exhibits and Financial Statement Tables

(a)    Exhibit Index

50

Exhibit No.	Description
*3.1	American Capital Agency Corp. Amended and Restated Certificate of Incorporation, as amended, incorporated herein by reference to Exhibit 3.1 of Form 10-Q for the quarter ended March 31, 2012 (File No. 001-34057), filed May 9, 2012.
*3.2	American Capital Agency Corp. Second Amended and Restated Bylaws, as amended, incorporated herein by reference to Exhibit 3.2 of Form 10-K for the year ended December 31, 2011 (File No. 001-34057), filed February 23, 2012.
*3.3	Certificate of Designations of 8.000% Series A Cumulative Redeemable Preferred Stock, incorporated herein by reference to Exhibit 3.1 of Form 8-K (File No 001-34057), filed April 3, 2012.
*3.4	Certificate of Designations of 7.750% Series B Cumulative Redeemable Preferred Stock, incorporated herein by reference to Exhibit 3.3 to Form 8-A (File No. 001-34057), filed May 7, 2014.
*4.1	Instruments defining the rights of holders of securities: See Article IV of our Amended and Restated Certificate of Incorporation, as amended, incorporated herein by reference to Exhibit 3.1 of Form 10-Q for the quarter ended March 31, 2012 (File No. 001-34057), filed May 9, 2012.
*4.2	Instruments defining the rights of holders of securities: See Article VI of our Second Amended and Restated Bylaws, as amended, incorporated herein by reference to Exhibit 3.2 of Form 10-K for the year ended December 31, 2011 (File No. 001-34057), filed February 23, 2012.
*4.3	Form of Certificate for Common Stock, incorporated herein by reference to Exhibit 4.1 to Amendment No. 4 to the Registration Statement on Form S-11 (Registration No. 333-149167), filed May 9, 2008.
*4.4	Specimen 8.000% Series A Cumulative Redeemable Preferred Stock Certificate, incorporated herein by reference to Exhibit 4.1 of Form 8-K (File No. 001-34057), filed April 3, 2012.
*4.5	Specimen 7.750% Series B Cumulative Redeemable Preferred Stock Certificate, incorporated herein by reference to Exhibit 4.1 to Form 8-A (File No. 001-34057), filed May 7, 2014.
*4.6	Deposit Agreement, dated May 8, 2014, among American Capital Agency Corp., Computershare Inc. and Computershare Trust Company, N.A., jointly as depositary, incorporated herein by reference to Exhibit 4.2 to Form 8-K (File No. 001-34067), filed May 8, 2014.
*4.7	Form of Depositary Receipt, incorporated herein by reference to Exhibit 4.3 to Form 8-K (File No. 001-34067), filed May 8, 2014.
31.1	Certification of CEO Pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
31.2	Certification of CFO Pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002.
32	Certification of CEO and CFO Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS**	XBRL Instance Document
101.SCH**	XBRL Taxonomy Extension Schema Document
101.CAL**	XBRL Taxonomy Extension Calculation Linkbase Document
101.LAB**	XBRL Taxonomy Extension Labels Linkbase Document
101.PRE**	XBRL Taxonomy Extension Presentation Linkbase Document
101.DEF**	XBRL Taxonomy Extension Definition Linkbase Document

______________________

*    Previously filed

** This exhibit is being furnished rather than filed, and shall not be deemed incorporated by reference into any filing, in accordance with Item 601 of Regulation S-K

(b) Exhibits

See the exhibits filed herewith.

(c) Additional financial statement schedules

NONE

51

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		AMERICAN CAPITAL AGENCY CORP.
		By:	/s/    MALON WILKUS
			Malon Wilkus Chair of the Board of Directors and Chief Executive Officer
Date:	May 9, 2014

52

EX-31.1

Exhibit 31.1

American Capital Agency Corp.

Certification Pursuant to Section 302(a)

of the Sarbanes-Oxley Act of 2002

I, Malon Wilkus, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of American Capital Agency Corp.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

(a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	May 9, 2014
	/s/    MALON WILKUS
	Malon Wilkus
	Chair of the Board and Chief Executive Officer

EX-31.2

Exhibit 31.2

American Capital Agency Corp.

Certification Pursuant to Section 302(a)

of the Sarbanes-Oxley Act of 2002

I, John R. Erickson, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of American Capital Agency Corp;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entitles, particularly during the period in which this report is being prepared;

(b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an Annual Report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors:

(a) All significant deficiencies and material weakness in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	May 9, 2014
	/s/    JOHN R. ERICKSON
	John R. Erickson
	Chief Financial Officer and Executive Vice President

EX-32

Exhibit 32

American Capital Agency Corp.

Certification of CEO and CFO Pursuant to 18 U.S.C. Section 1350,

as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

We, Malon Wilkus, Chief Executive Officer and Chair of the Board of Directors, and John R. Erickson, Executive Vice President and Chief Financial Officer of American Capital Agency Corp. (the “Company”), certify pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350 that:

1. The Quarterly Report on Form 10-Q of the Company for the quarter ended March 31, 2014 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

	/s/    MALON WILKUS
Name:	Malon Wilkus
Title:	Chair of the Board and Chief Executive Officer
Date:	May 9, 2014
	/s/    JOHN R. ERICKSON
Name:	John R. Erickson
Title:	Chief Financial Officer and Executive Vice President
Date:	May 9, 2014

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Derivative and Other Hedging Instruments (Summary Of Outstanding Forward Contracts Designated As Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 Interest Rate Swap [Member]	Dec. 31, 2013 Interest Rate Swap [Member]
Net Periodic Interest Rate Costs on Swaps	$ 126	$ 133
Notional Amount	8,000		46,400	43,250
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	$ 83	$ 84

XML

Subsequent Event (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	May 05, 2014	Mar. 31, 2014
Subsequent Event [Line Items]
Preferred Stock, Liquidation Preference Per Share		$ 25.00
Preferred Stock, Value, Issued	$ 167		$ 167
Preferred Stock, Dividend Rate, Percentage	8.00%
Preferred Stock, Shares Issued	6.9		6.9
Preferred Class B [Member]
Subsequent Event [Line Items]
Share Price		$ 24.2125
Preferred Stock, Value, Issued		$ 169
Preferred Stock, Dividend Rate, Percentage	7.75%
Preferred Stock, Shares Issued		7.0
Preferred Class B [Member] | Preferred Class B [Member]
Subsequent Event [Line Items]
Preferred Stock, Shares Issued		1.0

XML

Pledged Assets Pledged Assets (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	$ 53,589	$ 67,875
Available-for-sale Securities Pledged as Collateral	51,850	62,205
Obligation to Return Securities Borrowed Under Reverse Repurchase Agreements at Fair Value	6,658	1,848
Available For Sale Securities Pledged As Collateral Accrued Interest	151	195
Restricted Cash and Cash Equivalents	269	101
Total Fair Value Of Agency Securities Pledged And Accrued Interest	54,655	68,360
Agency Securities Pledged As Collateral Amortized Cost	54,156	69,008
Agency Securities Pledged As Collateral Accrued Interest		194
Agency Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Agency Securities Pledged As Collateral Amortized Cost	54,031	65,248
Agency Securities Pledged As Collateral Accrued Interest	150	178
Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	52,047	62,708
Derivative [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	56	28
Available For Sale Securities Pledged As Collateral Accrued Interest	0	1
Restricted Cash and Cash Equivalents	224	41
Total Fair Value Of Agency Securities Pledged And Accrued Interest	351	140
US Treasury Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	196	3,778
US Treasury Securities [Member] | Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	125	3,708
US Treasury Securities [Member] | Derivative [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	71	70
Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available For Sale Securities Pledged As Collateral Accrued Interest	146	189
Total Fair Value Of Agency Securities Pledged And Accrued Interest	52,319	66,608
Variable Interest Entity, Primary Beneficiary [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	1,417	1,459
Available For Sale Securities Pledged As Collateral Accrued Interest	4	5
Total Fair Value Of Agency Securities Pledged And Accrued Interest	1,421	1,464
Under Prime Broker Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	519	91
Available For Sale Securities Pledged As Collateral Accrued Interest	1	0
Total Fair Value Of Agency Securities Pledged And Accrued Interest	564	148
Includes Sold But Not Yet Settled Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	54,039	64,286
Excluding Cash Received [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Restricted Cash and Cash Equivalents	269	101
Under Prime Broker Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Restricted Cash and Cash Equivalents	44	57
Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Restricted Cash and Cash Equivalents	1	3
Maturity up to 30 days [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	17,683	27,694
Agency Securities Pledged As Collateral Amortized Cost	17,858	28,125
Agency Securities Pledged As Collateral Accrued Interest	49	76
Maturity 31 To 59 Days [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	15,881	14,955
Agency Securities Pledged As Collateral Amortized Cost	16,024	15,210
Agency Securities Pledged As Collateral Accrued Interest	44	42
Maturity 60 To 90 Days [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	5,585	10,117
Agency Securities Pledged As Collateral Amortized Cost	5,630	10,290
Agency Securities Pledged As Collateral Accrued Interest	16	28
Maturity over 90 days [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	14,315	11,401
Agency Securities Pledged As Collateral Amortized Cost	14,519	11,623
Agency Securities Pledged As Collateral Accrued Interest	41	32
Maturity Overnight [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Security Owned and Pledged as Collateral, Fair Value	125	3,708
Agency Securities Pledged As Collateral Amortized Cost	125	3,760
Agency Securities Pledged As Collateral Accrued Interest	0	16
Assets Pledged to Us [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	17	82
Restricted Cash and Cash Equivalents	183	366
Restricted Cash and Securities Pledged	6,914	2,460
Assets Pledged to Us [Member] | Derivative [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	17	82
Restricted Cash and Securities Pledged	240	612
Assets Pledged to Us [Member] | US Treasury Securities [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	6,714	2,012
Assets Pledged to Us [Member] | US Treasury Securities [Member] | Derivative [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	56	164
Assets Pledged to Us [Member] | Reverse Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Available-for-sale Securities Pledged as Collateral	6,658	1,848
Assets Pledged to Us [Member] | Derivative [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Restricted Cash and Cash Equivalents	167	366
Assets Pledged to Us [Member] | Repurchase Agreements [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Restricted Cash and Cash Equivalents	$ 16

XML

Derivative and Other Hedging Instruments (Effect Of Derivative Instruments Not Designated As Hedges On Income Statement) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014
Notional Amount			$ 8,000
Amount Gain/(Loss) Recognized in Income on Derivatives	(434)	(110)
Interest Only And Principal Only Strip [Member]
Unrealized Gain (Loss) on Securities	$ 12	$ (1)

XML

Repurchase Agreements And Other Debt (Repurchase Arrangements And Weighted Average Interest Rates Classified By Original Maturities) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Other Long-term Debt	$ 874	$ 910
Spread Over LIBOR	43	42
Debt Instrument, Face Amount	863	900
Borrowings Outstanding	49,729	63,533
Weighted Average Days to Maturity	161	119
30 Days or Less [Member]
Borrowings Outstanding	13,440	23,577
Average Interest Rate	0.37%	0.42%
Weighted Average Days to Maturity	15	15
thirty one to ninety [Member]
Borrowings Outstanding	17,396	20,490
Average Interest Rate	0.38%	0.43%
Weighted Average Days to Maturity	54	61
120 to 180 days [Member]
Borrowings Outstanding	5,242	6,946
Average Interest Rate	0.45%	0.45%
Weighted Average Days to Maturity	137	140
210 to 270 days [Member]
Borrowings Outstanding	4,560	2,232
Average Interest Rate	0.51%	0.53%
Weighted Average Days to Maturity	232	230
300 to 360 days [Member]
Borrowings Outstanding	4,171	3,607
Average Interest Rate	0.49%	0.54%
Weighted Average Days to Maturity	326	323
390 to 720 days [Member]
Borrowings Outstanding	3,232	3,261
Average Interest Rate	0.57%	0.60%
Weighted Average Days to Maturity	517	603
750 to 1080 days [Member]
Borrowings Outstanding	540	500
Average Interest Rate	0.61%	0.62%
Weighted Average Days to Maturity	876	930
Greater than 1080 days [Member]
Borrowings Outstanding	999	602
Average Interest Rate	0.66%	0.68%
Weighted Average Days to Maturity	1,599	1,468
US Treasury Securities [Member]
Borrowings Outstanding	149	2,318
Average Interest Rate	0.05%	0.02%
Weighted Average Days to Maturity	1	1
Repurchase Agreements [Member]
Average Interest Rate	0.43%	0.44%
Agency Securities [Member]
Borrowings Outstanding	$ 49,580	$ 61,215
Weighted Average Days to Maturity	162	124
Agency Securities [Member] | Repurchase Agreements [Member]
Average Interest Rate	0.43%	0.45%

XML

Investment Securities (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Gain Loss on Other Debt	$ (3,000,000)	$ 13,000,000
Future Prepayment Rate Assumption Of Investment Portfolio	8.00%	7.00%
Fair value of CMO securities and interest-only strips	1,700,000,000
Securitized CMO Securities	2,300,000,000
CMO and Interest Only, Pricincipal Only Securities, Maximum Loss Exposure	265,000,000	246,000,000
Fair value of agency securities collaterizing debt issued by securitization trust	1,400,000,000	1,500,000,000
Principal balance of agency securities collaterizing debt issued by securitization trust	1,300,000,000	1,400,000,000
Debt Instrument, Face Amount	863,000,000	900,000,000
Other Long-term Debt	874,000,000	910,000,000
Agency Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net	$ 2,600,000,000	$ 3,000,000,000

XML

Management Agreement and Related Party Transactions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Related Party Transaction [Line Items]
Management Fee Expense	$ 29	$ 33

XML

Derivative and Other Hedging Instruments (Summary Of Outstanding Interest Rate Swaps Agreements Not Designated As Hedges) (Details) (USD $)	3 Months Ended		12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended				3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended									3 Months Ended				3 Months Ended		3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Interest Rate Swap [Member]	Mar. 31, 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Interest Rate Swap [Member]	Mar. 31, 2014 Interest Rate Swaption [Member]	Mar. 31, 2013 Interest Rate Swaption [Member]	Dec. 31, 2013 Interest Rate Swaption [Member]	Mar. 31, 2014 TBA and Forward Settling Agency Securities [Member]	Mar. 31, 2013 TBA and Forward Settling Agency Securities [Member]	Dec. 31, 2013 TBA and Forward Settling Agency Securities [Member]	Dec. 31, 2012 TBA and Forward Settling Agency Securities [Member]	Mar. 31, 2014 Put Option [Member]	Mar. 31, 2014 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swaption [Member]	Dec. 31, 2013 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swaption [Member]	Mar. 31, 2014 Greater Than Three Years and Less Than or Equal to Five Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than Three Years and Less Than or Equal to Five Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Greater Than Five Years and Less than or Equal to Seven Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than Five Years and Less than or Equal to Seven Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Greater Than Seven Years and Less than or Equal to Ten Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than Seven Years and Less than or Equal to Ten Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Greater Than Ten Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than Ten Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Receiver Swaption [Member]	Mar. 31, 2014 Short [Member] US Treasury Securities [Member]	Mar. 31, 2013 Short [Member] US Treasury Securities [Member]	Dec. 31, 2013 Short [Member] US Treasury Securities [Member]	Dec. 31, 2012 Short [Member] US Treasury Securities [Member]	Mar. 31, 2014 Long [Member] US Treasury Securities [Member]	Dec. 31, 2013 Long [Member] US Treasury Securities [Member]	Mar. 31, 2014 Future [Member] US Treasury Securities [Member]	Mar. 31, 2013 Future [Member] US Treasury Securities [Member]	Dec. 31, 2013 Future [Member] US Treasury Securities [Member]	Dec. 31, 2012 Future [Member] US Treasury Securities [Member]
Obligation to Return Securities Borrowed Under Reverse Repurchase Agreements at Fair Value	$ 6,658,000,000		$ 1,848,000,000
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	686,000,000		1,194,000,000
Notional Amount	8,000,000,000			46,400,000,000		43,250,000,000			14,250,000,000	13,909,000,000	26,268,000,000	2,119,000,000	12,477,000,000		16,650,000,000	16,750,000,000	2,450,000,000	3,600,000,000	10,575,000,000	10,225,000,000	6,250,000,000	5,700,000,000	10,175,000,000	8,825,000,000	2,750,000,000	1,750,000,000	(46,400,000,000)	(43,250,000,000)	(51,250,000,000)	(46,850,000,000)	(14,250,000,000)	(22,900,000,000)	(14,450,000,000)	1,000,000,000	(6,786,000,000)	(12,560,000,000)	(2,007,000,000)	(11,835,000,000)			(730,000,000)	(800,000,000)	(1,730,000,000)	0
Net Estimated Fair Value				192,000,000		480,000,000									(327,000,000)	(382,000,000)			78,000,000	81,000,000	66,000,000	113,000,000	287,000,000	499,000,000	88,000,000	169,000,000
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	417,000,000		422,000,000	368,000,000		400,000,000
Notional Amount Of Derivatives Not Designated As Hedging Instruments Additions During The Period				(5,900,000,000)	(5,750,000,000)			(11,150,000,000)		24,376,000,000	43,267,000,000			(50,000,000)																					(7,241,000,000)	(9,935,000,000)					(730,000,000)	(800,000,000)
Notional Amount Of Derivatives Not Designated As Hedging Instruments Settlement Expiration During The Period				2,750,000,000	1,350,000,000		7,250,000,000	2,700,000,000			(29,476,000,000)			50,000,000																					2,462,000,000	9,210,000,000					1,730,000,000	0
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(434,000,000)	(110,000,000)		(380,000,000)	54,000,000		(105,000,000)	(44,000,000)		60,000,000	(102,000,000)																								(45,000,000)	(3,000,000)			72,000,000		(36,000,000)	(15,000,000)
Trading Securities Added During the Period																																							1,900,000,000
Notional Amount Of Trading Securities Settlement Expiration During The Period																																							(5,627,000,000)
Trading Securities																																							200,000,000	3,927,000,000
Term (Years)				4 years 10 months 15 days		4 years 8 months	5 years 8 months		7 years						1 year 4 months 15 days	1 year 7 months	4 years 6 months	5 years 7 months	4 years	3 years 11 months	5 years 10 months 15 days	6 years	8 years 6 months	8 years 9 months	14 years 1 month	14 years 8 months
Proceeds from Securities Purchased under Agreements to Resell	$ 6,700,000,000		$ 1,900,000,000
Derivative, Average Fixed Interest Rate				1.87%		1.70%	3.27%		3.09%						1.55%	1.57%	3.55%	3.40%	1.29%	1.07%	2.09%	1.97%	2.51%	2.28%	3.17%	2.79%
Derivative, Average Variable Interest Rate				0.21%		0.22%									0.18%	0.19%			0.24%	0.24%	0.25%	0.26%	0.24%	0.24%	0.24%	0.24%

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Derivative and Other Hedging Instruments (Summary Of Outstanding Interest Rate Swaps Designated As Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Derivative [Line Items]
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	$ 83	$ 84
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43	49
Derivative, Higher Remaining Maturity Range	1 year 10 months 15 days		1 year 10 months 14 days
Notional Amount	8,000
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43	49
Interest Rate Swap [Member]
Derivative [Line Items]
Derivative, Average Remaining Maturity	4 years 10 months 15 days		4 years 8 months
Derivative, Average Fixed Interest Rate	1.87%		1.70%
Notional Amount	46,400		43,250
Interest Rate Swap [Member] | Forward Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount			$ 4,000
Interest Rate Swap [Member] | Interest Rate Swaps Excluding Forward Starting [Member]
Derivative [Line Items]
Derivative, Average Fixed Interest Rate	1.57%		1.57%
Interest Rate Swaps [Member] | Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Derivative [Line Items]
Derivative, Average Remaining Maturity	1 year 11 months

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Stockholders' Equity (Summary of Follow-on Public Offerings of Common Stock) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Variable Interest Entity, Measure of Activity, Expense	$ (3)		$ 13
Common Stock, Shares, Issued	352.8	356.2
Stock Issued During Period, Value, New Issues			1,802
Stock Repurchase Program, Authorized Amount	1,000	1,000		500
Stock Repurchased During Period, Shares	(3.4)
Treasury Stock Acquired, Average Cost Per Share	$ 22.10
Stock Repurchased During Period, Value	(74)
Stock Repurchase Program, Remaining Authorized Repurchase Amount	992
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	521		(837)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43		49
Total Reclass of Other Comprehensive Income	62		75
Other comprehensive income (loss)	564		(788)
Proceeds from Issuance of Common Stock	0		1,802
Accumulated Other Comprehensive Income (Loss), Net of Tax	(819)	(1,383)	767	1,555
Common Stock [Member]
Stock Issued During Period, Value, New Issues			1
Stock Repurchased During Period, Shares	(3.4)
Stock Repurchased During Period, Value	(74)
Public offering of common stock			57.6
Agency Securities [Member]
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(566)	(1,087)	1,203	2,040
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	502		(863)
Other Comprehensive Income Reclassification Adjustment For Sale Of Security Reversal Of Prior Period Unrealized Gain And Losses On Realization	19		26
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43		49
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge	$ (253)	$ 296	$ (436)	$ 485

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Pledged Assets (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Offsetting Assets and Liabilities [Line Items]
Risk Of Repurchase Agreement To Stockholders Equity	4.00%
Security Owned and Pledged as Collateral, Fair Value	$ 53,589,000,000	$ 67,875,000,000
Available-for-sale Securities Pledged as Collateral	51,850,000,000	62,205,000,000
Obligation to Return Securities Borrowed Under Reverse Repurchase Agreements at Fair Value	6,658,000,000	1,848,000,000
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(2,152,000,000)
Derivative Liability, Fair Value, Amount Offset Against Collateral	150,000,000
Available For Sale Securities Pledged As Collateral Accrued Interest	151,000,000	195,000,000
Restricted Cash and Cash Equivalents	269,000,000	101,000,000
Total Fair Value Of Agency Securities Pledged And Accrued Interest	54,655,000,000	68,360,000,000
Agency Securities Pledged As Collateral Amortized Cost	54,156,000,000	69,008,000,000
Agency Securities Pledged As Collateral Accrued Interest		194,000,000
Credit Derivative, Maximum Exposure, Undiscounted	0.01
Liability [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	50,097,000,000	63,933,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	50,097,000,000	63,933,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(5,061,000,000)	(2,212,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(44,886,000,000)	(61,721,000,000)
Liability [Member] | Swaption [Member] | Interest Rate Swap [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	368,000,000	400,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	368,000,000	400,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(288,000,000)	(331,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(80,000,000)	(69,000,000)
Assets [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	7,341,000,000	3,019,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	7,341,000,000	3,019,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(5,060,000,000)	(2,212,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet		(610,000,000)
Net Amount After Deducting Gross Amounts Not Offset on the Balance Sheet From Net Amount of Assets (Liabilities) Presented on the Balance Sheet	129,000,000	197,000,000
Assets [Member] | Swaption [Member] | Interest Rate Swap [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	656,000,000	1,138,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	656,000,000	1,138,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(287,000,000)	(331,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(240,000,000)	(610,000,000)
Net Amount After Deducting Gross Amounts Not Offset on the Balance Sheet From Net Amount of Assets (Liabilities) Presented on the Balance Sheet	129,000,000	197,000,000
Repurchase Agreements [Member] | Liability [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	49,729,000,000	63,533,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	49,729,000,000	63,533,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(4,773,000,000)	(1,881,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(44,806,000,000)	(61,652,000,000)
Reverse Repurchase Agreements [Member] | Assets [Member]
Offsetting Assets and Liabilities [Line Items]
Gross Amount of Recognized Assets (Liabilities)	6,685,000,000	1,881,000,000
Net Amount of Assets (Liabilities) Presented on the Balance Sheet	6,685,000,000	1,881,000,000
Gross Amounts of Financial Instruments Not Offset on the Balance Sheet	(4,773,000,000)	(1,881,000,000)
Gross Amounts of Cash Collateral Not Offset on the Balance Sheet	(1,912,000,000)	0
Net Amount After Deducting Gross Amounts Not Offset on the Balance Sheet From Net Amount of Assets (Liabilities) Presented on the Balance Sheet	0	0
Agency Securities [Member]
Offsetting Assets and Liabilities [Line Items]
Agency Securities Pledged As Collateral Amortized Cost	54,031,000,000	65,248,000,000
Agency Securities Pledged As Collateral Accrued Interest	150,000,000	178,000,000
Derivative [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	56,000,000	28,000,000
Available For Sale Securities Pledged As Collateral Accrued Interest	0	1,000,000
Restricted Cash and Cash Equivalents	224,000,000	41,000,000
Total Fair Value Of Agency Securities Pledged And Accrued Interest	351,000,000	140,000,000
Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	52,047,000,000	62,708,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	1,417,000,000	1,459,000,000
Available For Sale Securities Pledged As Collateral Accrued Interest	4,000,000	5,000,000
Total Fair Value Of Agency Securities Pledged And Accrued Interest	1,421,000,000	1,464,000,000
Under Prime Broker Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	519,000,000	91,000,000
Available For Sale Securities Pledged As Collateral Accrued Interest	1,000,000	0
Total Fair Value Of Agency Securities Pledged And Accrued Interest	564,000,000	148,000,000
Includes Sold But Not Yet Settled Securities [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	54,039,000,000	64,286,000,000
US Treasury Securities [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	196,000,000	3,778,000,000
US Treasury Securities [Member] | Derivative [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	71,000,000	70,000,000
US Treasury Securities [Member] | Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	125,000,000	3,708,000,000
Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Available For Sale Securities Pledged As Collateral Accrued Interest	146,000,000	189,000,000
Total Fair Value Of Agency Securities Pledged And Accrued Interest	52,319,000,000	66,608,000,000
Excluding Cash Received [Member]
Offsetting Assets and Liabilities [Line Items]
Restricted Cash and Cash Equivalents	269,000,000	101,000,000
Under Prime Broker Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Restricted Cash and Cash Equivalents	44,000,000	57,000,000
Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Restricted Cash and Cash Equivalents	1,000,000	3,000,000
30 Days or Less [Member]
Offsetting Assets and Liabilities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	17,683,000,000	27,694,000,000
Agency Securities Pledged As Collateral Amortized Cost	17,858,000,000	28,125,000,000
Agency Securities Pledged As Collateral Accrued Interest	49,000,000	76,000,000
Maturity 31 To 59 Days [Member]
Offsetting Assets and Liabilities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	15,881,000,000	14,955,000,000
Agency Securities Pledged As Collateral Amortized Cost	16,024,000,000	15,210,000,000
Agency Securities Pledged As Collateral Accrued Interest	44,000,000	42,000,000
Maturity 60 To 90 Days [Member]
Offsetting Assets and Liabilities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	5,585,000,000	10,117,000,000
Agency Securities Pledged As Collateral Amortized Cost	5,630,000,000	10,290,000,000
Agency Securities Pledged As Collateral Accrued Interest	16,000,000	28,000,000
Maturity over 90 days [Member]
Offsetting Assets and Liabilities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	14,315,000,000	11,401,000,000
Agency Securities Pledged As Collateral Amortized Cost	14,519,000,000	11,623,000,000
Agency Securities Pledged As Collateral Accrued Interest	41,000,000	32,000,000
Maturity Overnight [Member]
Offsetting Assets and Liabilities [Line Items]
Security Owned and Pledged as Collateral, Fair Value	125,000,000	3,708,000,000
Agency Securities Pledged As Collateral Amortized Cost	125,000,000	3,760,000,000
Agency Securities Pledged As Collateral Accrued Interest	0	16,000,000
Assets Pledged to Us [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	17,000,000	82,000,000
Restricted Cash and Cash Equivalents	183,000,000	366,000,000
Restricted Cash and Securities Pledged	6,914,000,000	2,460,000,000
Assets Pledged to Us [Member] | Derivative [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	17,000,000	82,000,000
Restricted Cash and Securities Pledged	240,000,000	612,000,000
Assets Pledged to Us [Member] | Reverse Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	6,658,000,000	1,848,000,000
Assets Pledged to Us [Member] | US Treasury Securities [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	6,714,000,000	2,012,000,000
Assets Pledged to Us [Member] | US Treasury Securities [Member] | Derivative [Member]
Offsetting Assets and Liabilities [Line Items]
Available-for-sale Securities Pledged as Collateral	56,000,000	164,000,000
Assets Pledged to Us [Member] | Derivative [Member]
Offsetting Assets and Liabilities [Line Items]
Restricted Cash and Cash Equivalents	167,000,000	366,000,000
Assets Pledged to Us [Member] | Repurchase Agreements [Member]
Offsetting Assets and Liabilities [Line Items]
Restricted Cash and Cash Equivalents	$ 16,000,000

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Investment Securities

ASC Topic 320, Investments—Debt and Equity Securities ("ASC 320"), requires that at the time of purchase, we designate a security as held-to-maturity, available-for-sale or trading, depending on our ability and intent to hold such security to maturity. Securities classified as trading and available-for-sale are reported at fair value, while securities classified as held-to-maturity are reported at amortized cost. We may sell any of our agency securities as part of our overall management of our investment portfolio. Accordingly, we typically designate our agency securities as available-for-sale. All securities classified as available-for-sale are reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss) ("OCI"), a separate component of stockholders' equity. Upon the sale of a security, we determine the cost of the security and the amount of unrealized gains or losses to reclassify out of accumulated OCI into earnings based on the specific identification method.

Interest-only securities and inverse interest-only securities (collectively referred to as "interest-only securities") represent our right to receive a specified proportion of the contractual interest flows of specific agency CMO securities. Principal-only securities represent our right to receive the contractual principal flows of specific agency CMO securities. Interest and principal-only securities are measured at fair value through earnings in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Our investments in interest and principal-only securities are included in agency securities, at fair value on the accompanying consolidated balance sheets.

REIT equity securities represent investments in the common stock of other publicly traded mortgage REITs that invest predominantly in agency MBS. We designate our investments in REIT equity securities as trading securities and report them at fair value on the accompanying consolidated balance sheets.

We estimate the fair value of our agency securities based on a market approach using "Level 2" inputs from third-party pricing services and non-binding dealer quotes derived from common market pricing methods. Such methods incorporate, but are not limited to, reported trades and executable bid and asked prices for similar securities, benchmark interest rate curves, such as the spread to the U.S. Treasury rate and interest rate swap curves, convexity, duration and the underlying characteristics of the particular security, including coupon, periodic and life caps, rate reset period, issuer, additional credit support and expected life of the security. We estimate the fair value of our REIT equity securities on a market approach using "Level 1" inputs based on quoted market prices. Refer to Note 8 for further discussion of fair value measurements.

We evaluate our agency securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis. The determination of whether a security is other-than-temporarily impaired may involve judgments and assumptions based on subjective and objective factors. When a security is impaired, an OTTI is considered to have occurred if any one of the following three conditions exist as of the financial reporting date: (i) we intend to sell the security (that is, a decision has been made to sell the security), (ii) it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis or (iii) we do not expect to recover the security's amortized cost basis, even if we do not intend to sell the security and it is not more likely than not that we will be required to sell the security. A general allowance for unidentified impairments in a portfolio of securities is not permitted.

If either of the first two conditions exists as of the financial reporting date, the entire amount of the impairment loss, if any, is recognized in earnings as a realized loss and the cost basis of the security is adjusted to its fair value. If the third condition exists, the OTTI is separated into (i) the amount relating to credit loss (the "credit component") and (ii) the amount relating to all other factors (the "non-credit components"). Only the credit component is recognized in earnings, with the non-credit components recognized in OCI. However, in evaluating if the third condition exists, our investments in agency securities typically would not have a credit component since the principal and interest are guaranteed by a GSE and, therefore, any unrealized loss is not the result of a credit loss. In addition, since we designate our agency securities as available-for-sale securities with unrealized gains and losses recognized in OCI, any impairment loss for non-credit components is already recognized in OCI.

The liquidity of the agency securities market allows us to obtain competitive bids and execute on a sale transaction typically within a day of making the decision to sell a security and, therefore, we generally do not make decisions to sell specific agency securities until shortly prior to initiating a sell order. In some instances, we may sell specific agency securities by delivering such securities into existing short to-be-announced ("TBA") contracts. TBA market conventions require the identification of the specific securities to be delivered no later than 48 hours prior to settlement. If we settle a short TBA contract through the delivery of securities, we will generally identify the specific securities to be delivered within one to two days of the 48-hour deadline.

Interest Income

Interest income is accrued based on the outstanding principal amount of the investment securities and their contractual terms. Premiums or discounts associated with the purchase of investment securities are amortized or accreted into interest income, respectively, over the projected lives of the securities, including contractual payments and estimated prepayments using the interest method in accordance with ASC Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs ("ASC 310-20").

We estimate long-term prepayment speeds of our agency securities using a third-party service and market data. The third-party service estimates prepayment speeds using models that incorporate the forward yield curve, current mortgage rates and mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, volatility and other factors. We review the prepayment speeds estimated by the third-party service and compare the results to market consensus prepayment speeds, if available. We also consider historical prepayment speeds and current market conditions to validate the reasonableness of the prepayment speeds estimated by the third-party service and, based on our Manager's judgment, we may make adjustments to its estimates. Actual and anticipated prepayment experience is reviewed quarterly and effective yields are recalculated when differences arise between (i) our previously estimated future prepayments and (ii) the actual prepayments to date plus our currently estimated future prepayments. If the actual and estimated future prepayment experience differs from our prior estimate of prepayments, we are required to record an adjustment in the current period to the amortization or accretion of premiums and discounts for the cumulative difference in the effective yield through the reporting date.

Derivative Instruments

We use a variety of derivative instruments to hedge a portion of our exposure to market risks, including interest rate risk, prepayment risk and extension risk. The objective of our risk management strategy is to reduce fluctuations in net book value over a range of interest rate scenarios. In particular, we attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates. The principal instruments that we use are interest rate swaps and options to enter into interest rate swaps ("swaptions"). We also utilize forward contracts for the purchase or sale of agency MBS securities on a generic pool basis, or a TBA contract, and on a non-generic, specified pool basis, and we utilize U.S. Treasury securities and U.S. Treasury futures contracts, primarily through short sales. We may also purchase or write put or call options on TBA securities and we may invest in other types of mortgage derivatives, such as interest and principal-only securities.

We may also enter into TBA contracts as a means of investing in and financing agency securities (thereby increasing our "at risk" leverage) or as a means of disposing of or reducing our exposure to agency securities (thereby reducing our "at risk" leverage). Pursuant to TBA contracts, we agree to purchase or sell, for future delivery, agency securities with certain principal and interest terms and certain types of collateral, but the particular agency securities to be delivered are not identified until shortly before the TBA settlement date. We also may choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a "pair off"), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA contract for a later settlement date. This transaction is commonly referred to as a "dollar roll." The agency securities purchased or sold for a forward settlement date are typically priced at a discount to agency securities for settlement in the current month. This difference (or discount) is referred to as the "price drop." The price drop is the economic equivalent of net interest carry income on the underlying agency securities over the roll period (interest income less implied financing cost) and is commonly referred to as "dollar roll income/loss." Consequently, forward purchases of agency securities and dollar roll transactions represent a form of off-balance sheet financing.

We account for derivative instruments in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). ASC 815 requires an entity to recognize all derivatives as either assets or liabilities in the balance sheet and to measure those instruments at fair value.

Our derivative agreements generally contain provisions that allow for netting or setting off derivative assets and liabilities with the counterparty; however, we report related assets and liabilities on a gross basis in our consolidated balance sheets. Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in our consolidated balance sheets. Changes in fair value of derivative instruments and periodic settlements related to our derivative instruments are recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Cash receipts and payments related to derivative instruments are classified in our consolidated statements of cash flows according to the underlying nature or purpose of the derivative transaction, generally in the investing section.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. We attempt to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings, monitoring positions with individual counterparties and adjusting posted collateral as required.

Discontinuation of hedge accounting for interest rate swap agreements

Prior to September 30, 2011, we entered into interest rate swap agreements typically with the intention of qualifying for hedge accounting under ASC 815. However, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps. Upon discontinuation of hedge accounting, the net deferred loss related to our de-designated interest rate swaps remained in accumulated OCI and is being reclassified from accumulated OCI into interest expense on a straight-line basis over the remaining term of each interest rate swap.

Interest rate swap agreements

We use interest rate swaps to hedge the variable cash flows associated with borrowings made under our repurchase agreement facilities. Under our interest rate swap agreements, we typically pay a fixed rate and receive a floating rate based on one, three or six-month LIBOR ("payer swaps") with terms up to 20 years. The floating rate we receive under our swap agreements has the effect of offsetting the repricing characteristics of our repurchase agreements and cash flows on such liabilities. Our swap agreements are privately negotiated in the over−the−counter ("OTC") market and may be centrally cleared through a registered commodities exchange ("centrally cleared swaps").

We estimate the fair value of our centrally cleared interest rate swaps using the daily settlement price determined by the respective exchange. Centrally cleared swaps are valued by the exchange using a pricing model that references the underlying rates including the overnight index swap rate and LIBOR forward rate to produce the daily settlement price.

We estimate the fair value of our "non-centrally cleared" swaps using a combination of inputs from counterparty and third-party pricing models to estimate the net present value of the future cash flows using the forward interest rate yield curve in effect as of the end of the measurement period. We also incorporate both our own and our counterparties' nonperformance risk in estimating the fair value of our interest rate swaps. In considering the effect of nonperformance risk, we consider the impact of netting and credit enhancements, such as collateral postings and guarantees, and have concluded that our own and our counterparty risk is not significant to the overall valuation of these agreements.

Interest rate swaptions

We purchase interest rate swaptions to help mitigate the potential impact of larger increases or decreases in interest rates on the performance of our investment portfolio (referred to as "convexity risk"). The interest rate swaptions provide us the option to enter into an interest rate swap agreement for a predetermined notional amount, stated term and pay and receive interest rates in the future. Our swaption agreements typically provide us the option to enter into a pay fixed rate interest rate swap, which we refer as "payer swaptions." We may also enter into swaption agreements that provide us the option to enter into a receive fixed interest rate swap, which we refer to as "receiver swaptions." The premium paid for interest rate swaptions is reported as an asset in our consolidated balance sheets. The premium is valued at an amount equal to the fair value of the swaption that would have the effect of closing the position adjusted for nonperformance risk, if any. The difference between the premium and the fair value of the swaption is reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. If a swaption expires unexercised, the realized loss on the swaption would be equal to the premium paid. If we sell or exercise a swaption, the realized gain or loss on the swaption would be equal to the difference between the cash or the fair value of the underlying interest rate swap received and the premium paid.

Our interest rate swaption agreements are privately negotiated in the OTC market and are not subject to central clearing. We estimate the fair value of interest rate swaptions using a combination of inputs from counterparty and third-party pricing models based on the fair value of the future interest rate swap that we have the option to enter into as well as the remaining length of time that we have to exercise the option, adjusted for non-performance risk, if any.

TBA securities

A TBA security is a forward contract for the purchase ("long position") or sale ("short position") of agency MBS at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific agency MBS delivered into the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We may enter into TBA contracts as a means of hedging against short-term changes in interest rates. We may also enter into TBA contracts as a means of acquiring or disposing of agency securities and we may from time to time utilize TBA dollar roll transactions to finance agency MBS purchases.

We account for TBA contracts as derivative instruments since either the TBA contracts do not settle in the shortest period of time possible or we cannot assert that it is probable at inception and throughout the term of the TBA contract that we will take physical delivery of the agency security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions. Gains, losses and dollar roll income associated with our TBA contracts and dollar roll transactions are recognized in our consolidated statements of comprehensive income in gain (loss) on derivative instruments and other securities, net.

We estimate the fair value of TBA securities based on similar methods used to value our agency MBS securities.

U.S. Treasury securities

We purchase or sell short U.S. Treasury securities and U.S. Treasury futures contracts to help mitigate the potential impact of changes in interest rates on the performance of our portfolio. We borrow securities to cover short sales of U.S. Treasury securities under reverse repurchase agreements. We account for these as securities borrowing transactions and recognize an obligation to return the borrowed securities at fair value on the balance sheet based on the value of the underlying borrowed securities as of the reporting date. Gains and losses associated with purchases and short sales of U.S. Treasury securities and U.S. Treasury futures contracts are recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

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Derivative and Other Hedging Instruments (Summary Of Outstanding Interest Rate Swaps Agreements Designated As Hedges in the Future) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Cost	$ 194
Fair Value	93
Notional Amount	8,000
Payer Swaption [Member]
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate	3M	3M
Interest Rate Swaption [Member]
Cost		335
Fair Value		258
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration	12	10
Notional Amount		14,250
Average Fixed Pay Rate	3.27%	3.09%
Term (Years)	5 years 8 months	7 years
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member] | Interest Rate Swaps [Member]
Term (Years)	1 year 11 months
Less Than or Equal to One Year [Member] | Payer Swaption [Member]
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate	3M	3M
Less Than or Equal to One Year [Member] | Interest Rate Swaption [Member]
Cost	111	193
Fair Value	44	117
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration	5	4
Notional Amount	4,650	9,400
Average Fixed Pay Rate	2.98%	2.87%
Term (Years)	6 years 5 months	7 years 9 months
Greater Than One Year and Less Than or Equal to Three Years [Member] | Payer Swaption [Member]
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate	3M	3M
Greater Than One Year and Less Than or Equal to Three Years [Member] | Interest Rate Swaption [Member]
Cost	60	105
Fair Value	34	92
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration	18	19
Notional Amount	2,450	3,600
Average Fixed Pay Rate	3.55%	3.40%
Term (Years)	4 years 6 months	5 years 7 months
greater than two years less than or equal to three years [Member] | Payer Swaption [Member]
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate	3M	3M
greater than two years less than or equal to three years [Member] | Interest Rate Swaption [Member]
Cost	23	35
Fair Value	15	45
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration	28	30
Notional Amount	900	1,150
Average Fixed Pay Rate	3.99%	3.81%
Term (Years)	5 years 5 months	5 years 9 months
greater than four years less than or equal to five years [Member] | Payer Swaption [Member]
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate		3M
greater than four years less than or equal to five years [Member] | Interest Rate Swaption [Member]
Cost		2
Fair Value		4
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration		52
Notional Amount		$ 100
Average Fixed Pay Rate		4.80%
Term (Years)		7 years

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Investment Securities (Summary Of Changes In Accumulated OCI For Available-For-Sale Security) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Unrealized gain (loss) on available-for-sale securities, net	$ 521	$ (837)
Agency Securities [Member]
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning OCI Balance	(1,087)	2,040
Unrealized gain (loss) on available-for-sale securities, net	502	(863)
Reversal of prior Period Unrealized (Gains) and Losses, Net on Realization	19	26
Ending OCI Balance	$ (566)	$ 1,203

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Investment Securities (Summary Of Agency Securities Estimated Weighted Average Life Classifications) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Weighted Average Life Interest Only Securities	6 years 2 months	6 years 4 months
Weighted Average Life Principal Only Securities	8 years 4 months	8 years 7 months
Agency securities classified as available for sale, Fair value	$ 55,945	$ 65,504
Agency securities classified as available for sale, Amortized cost	56,513	66,593
Weighted average coupon	3.53%	3.47%
Available For Sale Securities Weighted Average Life yield	2.70%	2.68%
Less Than or Equal to One Year [Member]
Available For Sale Securities Weighted Average Life Fair Value	27	129
Available For Sale Securities Weighted Average Life Amortized Cost	25	129
Weighted average coupon	2.49%	3.07%
Available For Sale Securities Weighted Average Life yield	1.81%	2.53%
Greater Than One Year and Less Than or Equal to Three Years [Member]
Available For Sale Securities Weighted Average Life Fair Value	191	498
Available For Sale Securities Weighted Average Life Amortized Cost	186	491
Weighted average coupon	4.86%	4.08%
Available For Sale Securities Weighted Average Life yield	3.29%	2.25%
Greater Than Three Years and Less Than or Equal to Five Years [Member]
Available For Sale Securities Weighted Average Life Fair Value	22,947	24,471
Available For Sale Securities Weighted Average Life Amortized Cost	22,758	24,342
Weighted average coupon	3.55%	3.59%
Available For Sale Securities Weighted Average Life yield	2.53%	2.57%
Greater Than Five Years [Member]
Available For Sale Securities Weighted Average Life Fair Value	32,534	38,522
Available For Sale Securities Weighted Average Life Amortized Cost	33,284	39,635
Weighted average coupon	3.51%	3.39%
Available For Sale Securities Weighted Average Life yield	2.80%	2.73%
Greater Than Ten Years [Member]
Available For Sale Securities Weighted Average Life Fair Value	246	1,884
Available For Sale Securities Weighted Average Life Amortized Cost	$ 260	$ 1,996
Weighted average coupon	3.61%	3.66%
Available For Sale Securities Weighted Average Life yield	2.87%	2.96%

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Derivative and Other Hedging Instruments (Summary of Outstanding TBAs) (Details) (TBA securities Fifteen Year and Thirty Year Securities [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014		Dec. 31, 2013
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 14,102		$ 2,271
Notional Amount	13,909	[1]	2,119	[1]
Derivative, Forward Settlement Value	14,127		2,276
Fair Value of Derivative Instruments	(25)	[1]	(5)	[1]
Long [Member]
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	18,095		6,864
Notional Amount	17,699		6,660
Derivative, Forward Settlement Value	18,136		6,882
Fair Value of Derivative Instruments	(41)		(18)
Short [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	(3,993)		(4,593)
Notional Amount	(3,790)		(4,541)
Derivative, Forward Settlement Value	(4,009)		(4,606)
Fair Value of Derivative Instruments	$ 16		$ 13

[1] 1.Notional amount represents the par value (or principal balance) of the underlying agency security.

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Investment Securities (Summary Of Continuous Unrealized Loss Positions Of Available-For-Sale Security) (Details) (Accumulated Other Comprehensive Income (Loss) [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Member]
Unrealized Loss Position For - Estimated Fair Value - Less than 12 Months	$ 22,112	$ 25,963	$ 42,853
Unrealized Loss Position For - Unrealized Loss - Less than 12 Months	(442)	(174)	(1,248)
Unrealized Loss Position For - Estimated Fair Value - 12 Months or More	8,673	84	1,586
Unrealized Loss Position For - Unrealized Loss - 12 Months or More	(461)	(2)	(101)
Unrealized Loss Position For - Estimated Fair Value - Total	30,785	26,047	44,439
Unrealized Loss Position For - Unrealized Loss - Total	$ (903)	$ (176)	$ (1,349)

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Investment Securities (Summary Of Net Gain From Sale Of Agency Securities) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Proceeds from agency MBS sold	$ (12,807)	$ (10,001)
Gain (Loss) on Sales of Mortgage Backed Securities (MBS)	(19)	(26)
Agency Securities [Member]
Agency MBS sold, at cost	(9,711)	(20,328)
Proceeds from agency MBS sold	(9,692)	(20,302)
Gain (Loss) on Sales of Mortgage Backed Securities (MBS)	(19)	(26)
Gross gains on sale of agency MBS	42	87
Gross losses on sale of agency MBS	61	113
Interest Only And Principal Only Strip [Member]
Unrealized Gain (Loss) on Securities	$ 12	$ (1)

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Organization

3 Months Ended

Mar. 31, 2014

Organization [Abstract]

Organization

Organization

We were organized in Delaware on January 7, 2008, and commenced operations on May 20, 2008 following the completion of our initial public offering ("IPO"). Our common stock is traded on The NASDAQ Global Select Market under the symbol "AGNC."

We are externally managed by American Capital AGNC Management, LLC (our "Manager"), an affiliate of American Capital, Ltd. ("American Capital").

We operate so as to qualify to be taxed as a real estate investment trust ("REIT") under the Internal Revenue Code of 1986, as amended (the "Internal Revenue Code"). As a REIT, we are required to distribute annually 90% of our taxable net income. As long as we continue to qualify as a REIT, we will generally not be subject to U.S. federal or state corporate taxes on our taxable net income to the extent that we distribute all of our annual taxable net income to our stockholders. It is our intention to distribute 100% of our taxable net income, after application of available tax attributes, within the limits prescribed by the Internal Revenue Code, which may extend into the subsequent taxable year.

We earn income primarily from investing on a leveraged basis in agency mortgage-backed securities ("agency MBS"). These investments consist of residential mortgage pass-through securities and collateralized mortgage obligations ("CMOs") for which the principal and interest payments are guaranteed by a government-sponsored enterprise, such as the Federal National Mortgage Association ("Fannie Mae") and the Federal Home Loan Mortgage Corporation ("Freddie Mac"), or by a U.S. Government agency, such as the Government National Mortgage Association ("Ginnie Mae") (collectively referred to as "GSEs"). We may also invest in agency debenture securities issued by Freddie Mac, Fannie Mae or the Federal Home Loan Bank ("FHLB") and in other assets reasonably related to agency securities.

Our principal objective is to preserve our net asset value (also referred to as "net book value", "NAV" and "stockholders' equity") while generating attractive risk-adjusted returns for distribution to our stockholders through regular quarterly dividends from the combination of our net interest income and net realized gains and losses on our investments and hedging activities. We fund our investments primarily through short-term borrowings structured as repurchase agreements.

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Repurchase Agreements And Other Debt (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Weighted Average Life of Other Debt	6 years 6 months
Other Long-term Debt	$ 874	$ 910
Debt Instrument, Face Amount	$ 863	$ 900
Debt Instrument, Description of Variable Rate Basis, LIBOR		LIBOR
Spread Over LIBOR	43	42

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Derivative and Other Hedging Instruments (Effect of Forward Contracts Designated as Hedges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Notional Amount	$ 8,000
Unrealized (loss) gain on derivative instruments, net	$ 43	$ 49

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Stockholders' Equity (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				12 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
Common Stock, Shares, Issued	352.8	356.2			356.2
Proceeds from Issuance of Common Stock	$ 0		$ 1,802
Spread Over LIBOR	43				42
Issuance of common stock, value			1,802
Stock Repurchase Program, Authorized Amount	1,000	1,000		500
Stock Repurchased During Period, Shares	(3.4)
Treasury Stock Acquired, Average Cost Per Share	$ 22.10
Stock Repurchased During Period, Value	(74)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43		49
Total Reclass of Other Comprehensive Income	62		75
Accumulated Other Comprehensive Income (Loss), Net of Tax	(819)	(1,383)	767	1,555	(1,383)
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	521		(837)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	564		(788)
Agency Securities [Member]
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(566)	(1,087)	1,203	2,040	(1,087)
Other Comprehensive Income Reclassification Adjustment For Sale Of Security Reversal Of Prior Period Unrealized Gain And Losses On Realization	19		26
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	502		(863)
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43		49
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge	(253)	296	(436)	485	296
Interest Rate Swap [Member] | Agency Securities [Member]
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax	502		(863)
Forward Contracts [Member] | Interest Rate Swap [Member]
Notional Amount		4,000			4,000
Interest Rate Swap [Member]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ 0		$ 0

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Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Assets:
Agency securities, at fair value	$ 54,960	$ 64,482
Agency securities transferred to consolidated variable interest entities, at fair value	1,417	1,459
U.S. Treasury securities, at fair value	196	3,822
REIT equity securities, at fair value	352	237
Cash and cash equivalents	1,726	2,143
Restricted cash	269	101
Derivative assets, at fair value	686	1,194
Receivable for agency securities sold	799	652
Receivable under reverse repurchase agreements	6,685	1,881
Other assets	228	284
Total assets	67,318	76,255
Liabilities:
Repurchase agreements	49,729	63,533
Other debt	874	910
Payable for agency securities purchased	324	118
Derivative liabilities, at fair value	417	422
Dividend payable	232	235
Obligation to return securities borrowed under reverse repurchase agreements, at fair value	6,658	1,848
Accounts payable and other accrued liabilities	270	492
Total liabilities	58,504	67,558
Stockholders' equity:
Preferred Stock, Value, Issued	167	167
Common stock	4	4
Additional paid-in capital	10,332	10,406
Retained earnings (deficit)	(870)	(497)
Accumulated other comprehensive income	(819)	(1,383)
Total stockholders' equity	8,814	8,697
Total liabilities and stockholders' equity	$ 67,318	$ 76,255

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Derivative and Other Hedging Instruments (Summary Of Derivatives Outstanding Not Designated As Hedging Instruments) (Details) (USD $)	3 Months Ended		12 Months Ended	3 Months Ended					3 Months Ended		12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended		3 Months Ended				3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended			3 Months Ended											3 Months Ended				3 Months Ended		3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Put Option [Member]	Mar. 31, 2014 TBA and Forward Settling Agency Securities [Member]	Mar. 31, 2013 TBA and Forward Settling Agency Securities [Member]	Dec. 31, 2013 TBA and Forward Settling Agency Securities [Member]	Dec. 31, 2012 TBA and Forward Settling Agency Securities [Member]	Mar. 31, 2014 Interest Rate Swap [Member]	Mar. 31, 2013 Interest Rate Swap [Member]	Dec. 31, 2013 Interest Rate Swap [Member]	Mar. 31, 2014 Interest Rate Swaption [Member] years	Mar. 31, 2013 Interest Rate Swaption [Member]	Dec. 31, 2013 Interest Rate Swaption [Member] years	Mar. 31, 2014 Payer Swaption [Member]	Dec. 31, 2013 Payer Swaption [Member]	Mar. 31, 2014 Purchases Of TBAs And Forward Settling Agency Securities [Member]	Dec. 31, 2013 Purchases Of TBAs And Forward Settling Agency Securities [Member]	Mar. 31, 2014 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Mar. 31, 2013 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Dec. 31, 2013 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Dec. 31, 2012 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Mar. 31, 2014 Less Than or Equal to One Year [Member] Interest Rate Swaption [Member] years	Dec. 31, 2013 Less Than or Equal to One Year [Member] Interest Rate Swaption [Member] years	Mar. 31, 2014 Less Than or Equal to One Year [Member] Payer Swaption [Member]	Dec. 31, 2013 Less Than or Equal to One Year [Member] Payer Swaption [Member]	Mar. 31, 2014 Less Than or Equal to One Year [Member] Receiver Swaption [Member] years	Mar. 31, 2014 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swap [Member]	Mar. 31, 2014 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swaption [Member] years	Dec. 31, 2013 Greater Than One Year and Less Than or Equal to Three Years [Member] Interest Rate Swaption [Member] years	Mar. 31, 2014 Greater Than One Year and Less Than or Equal to Three Years [Member] Payer Swaption [Member]	Dec. 31, 2013 Greater Than One Year and Less Than or Equal to Three Years [Member] Payer Swaption [Member]	Mar. 31, 2014 greater than two years less than or equal to three years [Member] Interest Rate Swaption [Member] years	Dec. 31, 2013 greater than two years less than or equal to three years [Member] Interest Rate Swaption [Member] years	Mar. 31, 2014 greater than two years less than or equal to three years [Member] Payer Swaption [Member]	Dec. 31, 2013 greater than two years less than or equal to three years [Member] Payer Swaption [Member]	Dec. 31, 2013 greater than four years less than or equal to five years [Member] Interest Rate Swaption [Member] years	Dec. 31, 2013 greater than four years less than or equal to five years [Member] Payer Swaption [Member]	Mar. 31, 2014 Receiver Swaption [Member] Interest Rate Swaption [Member]	Mar. 31, 2014 Payer Swaption [Member] Interest Rate Swaption [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swap [Member]	Dec. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Mar. 31, 2013 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Dec. 31, 2012 Not Designated as Hedging Instrument [Member] Interest Rate Swaption [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Payer Swaption [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Receiver Swaption [Member]	Mar. 31, 2014 Short [Member] US Treasury Securities [Member]	Mar. 31, 2013 Short [Member] US Treasury Securities [Member]	Dec. 31, 2013 Short [Member] US Treasury Securities [Member]	Dec. 31, 2012 Short [Member] US Treasury Securities [Member]	Mar. 31, 2014 Long [Member] US Treasury Securities [Member]	Dec. 31, 2013 Long [Member] US Treasury Securities [Member]	Mar. 31, 2014 Future [Member] US Treasury Securities [Member]	Mar. 31, 2013 Future [Member] US Treasury Securities [Member]	Dec. 31, 2013 Future [Member] US Treasury Securities [Member]	Dec. 31, 2012 Future [Member] US Treasury Securities [Member]	Mar. 31, 2014 Other derivative instruments [Member]
Options At Cost	$ 194,000,000													$ 335,000,000									$ 111,000,000	$ 193,000,000			$ 3,000,000			$ 60,000,000	$ 105,000,000			$ 23,000,000	$ 35,000,000			$ 2,000,000
Interest Rate Derivatives, at Fair Value, Net	93,000,000													258,000,000									44,000,000	117,000,000			3,000,000			34,000,000	92,000,000			15,000,000	45,000,000			4,000,000
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration												12		10									5	4			12			18	19			28	30			52
Notional Amount	8,000,000,000				13,909,000,000	26,268,000,000	2,119,000,000	12,477,000,000	46,400,000,000		43,250,000,000			14,250,000,000									4,650,000,000	9,400,000,000			1,000,000,000	16,650,000,000	16,750,000,000	2,450,000,000	3,600,000,000			900,000,000	1,150,000,000			100,000,000				(46,400,000,000)	(43,250,000,000)	(51,250,000,000)	(46,850,000,000)	(14,250,000,000)	(22,900,000,000)	(14,450,000,000)	(8,000,000,000)	1,000,000,000	(6,786,000,000)	(12,560,000,000)	(2,007,000,000)	(11,835,000,000)			(730,000,000)	(800,000,000)	(1,730,000,000)	0
Derivative, Average Fixed Interest Rate									1.87%		1.70%	3.27%		3.09%									2.98%	2.87%			2.26%	1.55%	1.57%	3.55%	3.40%			3.99%	3.81%			4.80%
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate															3M	3M									3M	3M	3M					3M	3M			3M	3M		3M
Gain On Interest Only Securities Remeasured at Fair Value Through Earnings		(1,000,000)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(434,000,000)	(110,000,000)			60,000,000	(102,000,000)			(380,000,000)	54,000,000		(105,000,000)	(44,000,000)																																						(45,000,000)	(3,000,000)			72,000,000		(36,000,000)	(15,000,000)			(2,000,000)
Trading Securities																																																							200,000,000	3,927,000,000
Trading Securities Added During the Period																																																							1,900,000,000
Notional Amount Of Trading Securities Settlement Expiration During The Period																																																							(5,627,000,000)
Notional Amount Of Derivatives Not Designated As Hedging Instruments Settlement Expiration During The Period				50,000,000		(29,476,000,000)			2,750,000,000	1,350,000,000		7,250,000,000	2,700,000,000				(12,586,000,000)																																		2,462,000,000	9,210,000,000					1,730,000,000	0
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43,000,000	49,000,000																	43,000,000	49,000,000
Derivative assets not designated as hedging instruments	686,000,000		1,194,000,000															17,000,000
Derivative liabilities not designated as hedging instruments	417,000,000		422,000,000						368,000,000		400,000,000						49,000,000	22,000,000
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge																			253,000,000	436,000,000	(296,000,000)	(485,000,000)
Term (Years)									4 years 10 months 15 days		4 years 8 months	5 years 8 months		7 years									6 years 5 months	7 years 9 months			10 years	1 year 4 months 15 days	1 year 7 months	4 years 6 months	5 years 7 months			5 years 5 months	5 years 9 months			7 years
Deferred gain loss discontinued interest rate swap expected to be reclassified from OCI to interest expense next twelve months																			143,000,000
Derivative, Higher Remaining Maturity Range	1 year 10 months 15 days		1 year 10 months 14 days
Notional Amount Of Derivatives Not Designated As Hedging Instruments Additions During The Period				(50,000,000)	24,376,000,000	43,267,000,000			(5,900,000,000)	(5,750,000,000)			(11,150,000,000)																											1,000,000,000	(1,000,000,000)										(7,241,000,000)	(9,935,000,000)					(730,000,000)	(800,000,000)
Credit Derivative, Maximum Exposure, Undiscounted	$ 0.01

XML

Consolidated Statements Of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating activities:
Net income (loss)	$ (141)	$ 231
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of agency securities premiums and discounts, net	142	134
Amortization of accumulated other comprehensive loss on interest rate swaps de-designated as qualifying hedges	43	49
Gain on sale of agency securities, net	19	26
Loss (gain) on derivative instruments and other securities, net	378	98
Increase in other assets	60	19
Increase in accounts payable and other accrued liabilities	(13)	(39)
Net cash provided by operating activities	488	518
Investing activities:
Purchases of agency securities	(1,403)	(15,294)
Proceeds from sale of agency securities	9,545	19,568
Principal collections on agency securities	1,853	2,634
Purchases of U.S. Treasury securities	(4,343)	(9,222)
Proceeds from sale of U.S. Treasury securities	12,807	10,001
Proceeds from reverse repurchase agreements	(4,804)	(473)
Net (payments) receipts on other derivative instruments not designated as qualifying hedges	58	(329)
Purchases of REIT equity securities	(204)	0
Proceeds from sale of REIT equity securities	86	0
Decrease in restricted cash	(168)	(100)
Other investing cash flows, net	(183)	0
Net cash used in investing activities	13,244	6,785
Financing activities:
Proceeds from repurchase arrangements, net	79,314	96,511
Payments made on repurchase agreements	(93,118)	(104,729)
Repayments on other debt	(36)	(64)
Net proceeds from common stock issuances	0	1,802
Payments made on common stock repurchases	(74)	0
Stock Repurchased During Period, Value	(74)
Cash dividends paid	(235)	(427)
Net cash provided by financing activities	(14,149)	(6,907)
Net change in cash and cash equivalents	(417)	396
Cash and cash equivalents at beginning of period	2,143	2,430
Cash and cash equivalents at end of period	$ 1,726	$ 2,826

XML

Derivative and Other Hedging Instruments (Summary Of Outstanding Interest Rate Swaps) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Options At Cost	$ 194
Derivative, Higher Remaining Maturity Range	1 year 10 months 15 days		1 year 10 months 14 days
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	83	84
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43	49
Interest Rate Derivatives, at Fair Value, Net	93
Notional Amount	8,000
Interest Rate Swap [Member]
Derivative, Average Fixed Interest Rate	1.87%		1.70%
Notional Amount	46,400		43,250
Derivative, Average Remaining Maturity	4 years 10 months 15 days		4 years 8 months
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43	49
Interest Rate Swap [Member]
Derivative, Notional Amount	9,500
Interest Rate Swaps Excluding Forward Starting [Member] | Interest Rate Swap [Member]
Derivative, Average Fixed Interest Rate	1.57%		1.57%
Less Than or Equal to One Year [Member] | Receiver Interest Rate Swaps [Member]
Options At Cost	3
Derivative, Average Fixed Interest Rate	2.26%
Interest Rate Derivatives, at Fair Value, Net	3
Cash Flow Hedges Derivative Instruments Not Designated As Hedging Instruments Average Months To Expiration	12
Notional Amount	$ 1,000
Interest Rate Derivative Not Designated As Hedging Instruments Receive Rate	3M
Derivative, Average Remaining Maturity	10 years

XML

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2014

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table provides a summary of our assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2014 and December 31, 2013 (dollars in millions):

	Fair Value Hierarchy
	Level 1		Level 2		Level 3
March 31, 2014
Assets:
Agency securities	$	—	$	56,377	$	—
U.S. Treasury securities	196		—		—
Interest rate swaps	—		560		—
Payer swaptions	—		96		—
REIT equity securities	352		—
U.S. Treasury futures	6		—		—
TBA securities	—		24		—
Total	$	554	$	57,057	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	874	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	6,658		—		—
Interest rate swaps	—		368		—
TBA securities	—		49		—
Total	$	6,658	$	1,291	$	—
December 31, 2013
Assets:
Agency securities	$	—	$	65,941	$	—
U.S. Treasury securities	3,822		—		—
Interest rate swaps	—		880		—
Payer swaptions	—		258		—
REIT equity securities	237		—		—
U.S. Treasury futures	39		—		—
TBA securities	—		17		—
Total	$	4,098	$	67,096	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	910	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	1,848		—		—
Interest rate swaps	—		400		—
TBA securities	—		22		—
Total	$	1,848	$	1,332	$	—

XML

Derivative and Other Hedging Instruments (Remaining Interest Rate Swap Term) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Unrealized (loss) gain on derivative instruments, net	$ 43	$ 49
Notional Amount	8,000
Remaining interest rate swap term, maximum	1 year 10 months 15 days		1 year 10 months 14 days
Interest Rate Swap [Member]
Notional Amount	46,400		43,250
Derivative, Average Remaining Maturity	4 years 10 months 15 days		4 years 8 months
Average Fixed Pay Rate	1.87%		1.70%
Average Receive Rate	0.21%		0.22%
Net Estimated Fair Value	192		480
Interest Rate Swap [Member]
Derivative, Notional Amount	$ 9,500

XML

Organization (Details)	3 Months Ended
	Mar. 31, 2014
Organization [Abstract]
Required distribution of taxable net income on a annual basis	90.00%
Intended Annual Distribution of Taxable Net Income	100.00%

XML

Unaudited Interim Consolidated Financial Statements

3 Months Ended

Mar. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information [Text Block]

Unaudited Interim Consolidated Financial Statements

The unaudited interim consolidated financial statements of American Capital Agency Corp. (referred throughout this report as the "Company", "we", "us" and "our") are prepared in accordance with U.S. generally accepted accounting principles ("GAAP") for interim financial information and pursuant to the requirements for reporting on Form 10-Q and Article 10 of Regulation S-X. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and expenses during the reporting period. Actual results could differ from those estimates.

Our unaudited interim consolidated financial statements include the accounts of our wholly-owned subsidiary, American Capital Agency TRS, LLC, and variable interest entities for which the Company is the primary beneficiary. Significant intercompany accounts and transactions have been eliminated. In the opinion of management, all adjustments, consisting solely of normal recurring accruals, necessary for the fair presentation of financial statements for the interim period have been included. The current period’s results of operations are not necessarily indicative of results that ultimately may be achieved for the year.

XML

Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Per Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Available-for-sale Securities Pledged as Collateral	$ 51,850	$ 62,205
Trading Securities Pledged as Collateral	196	3,778
Assets Pledged included in Receivable for Securities Sold	772	622
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	10	10
Preferred Stock, Shares Issued	6.9	6.9
Preferred Stock, Shares Outstanding	6.9	6.9
Pref'd Stock Liquidation Preference	$ 173	$ 173
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	600	600
Common Stock, Shares, Issued	352.8	356.2
Common Stock, Shares, Outstanding	352.8	356.2

XML

Summary of Significant Accounting Policies (Policy)

3 Months Ended

Mar. 31, 2014

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Investment Securities

Investment Securities

ASC Topic 320, Investments—Debt and Equity Securities ("ASC 320"), requires that at the time of purchase, we designate a security as held-to-maturity, available-for-sale or trading, depending on our ability and intent to hold such security to maturity. Securities classified as trading and available-for-sale are reported at fair value, while securities classified as held-to-maturity are reported at amortized cost. We may sell any of our agency securities as part of our overall management of our investment portfolio. Accordingly, we typically designate our agency securities as available-for-sale. All securities classified as available-for-sale are reported at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss) ("OCI"), a separate component of stockholders' equity. Upon the sale of a security, we determine the cost of the security and the amount of unrealized gains or losses to reclassify out of accumulated OCI into earnings based on the specific identification method.

Interest-only securities and inverse interest-only securities (collectively referred to as "interest-only securities") represent our right to receive a specified proportion of the contractual interest flows of specific agency CMO securities. Principal-only securities represent our right to receive the contractual principal flows of specific agency CMO securities. Interest and principal-only securities are measured at fair value through earnings in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Our investments in interest and principal-only securities are included in agency securities, at fair value on the accompanying consolidated balance sheets.

REIT equity securities represent investments in the common stock of other publicly traded mortgage REITs that invest predominantly in agency MBS. We designate our investments in REIT equity securities as trading securities and report them at fair value on the accompanying consolidated balance sheets.

We estimate the fair value of our agency securities based on a market approach using "Level 2" inputs from third-party pricing services and non-binding dealer quotes derived from common market pricing methods. Such methods incorporate, but are not limited to, reported trades and executable bid and asked prices for similar securities, benchmark interest rate curves, such as the spread to the U.S. Treasury rate and interest rate swap curves, convexity, duration and the underlying characteristics of the particular security, including coupon, periodic and life caps, rate reset period, issuer, additional credit support and expected life of the security. We estimate the fair value of our REIT equity securities on a market approach using "Level 1" inputs based on quoted market prices. Refer to Note 8 for further discussion of fair value measurements.

We evaluate our agency securities for other-than-temporary impairment ("OTTI") on at least a quarterly basis. The determination of whether a security is other-than-temporarily impaired may involve judgments and assumptions based on subjective and objective factors. When a security is impaired, an OTTI is considered to have occurred if any one of the following three conditions exist as of the financial reporting date: (i) we intend to sell the security (that is, a decision has been made to sell the security), (ii) it is more likely than not that we will be required to sell the security before recovery of its amortized cost basis or (iii) we do not expect to recover the security's amortized cost basis, even if we do not intend to sell the security and it is not more likely than not that we will be required to sell the security. A general allowance for unidentified impairments in a portfolio of securities is not permitted.

If either of the first two conditions exists as of the financial reporting date, the entire amount of the impairment loss, if any, is recognized in earnings as a realized loss and the cost basis of the security is adjusted to its fair value. If the third condition exists, the OTTI is separated into (i) the amount relating to credit loss (the "credit component") and (ii) the amount relating to all other factors (the "non-credit components"). Only the credit component is recognized in earnings, with the non-credit components recognized in OCI. However, in evaluating if the third condition exists, our investments in agency securities typically would not have a credit component since the principal and interest are guaranteed by a GSE and, therefore, any unrealized loss is not the result of a credit loss. In addition, since we designate our agency securities as available-for-sale securities with unrealized gains and losses recognized in OCI, any impairment loss for non-credit components is already recognized in OCI.

The liquidity of the agency securities market allows us to obtain competitive bids and execute on a sale transaction typically within a day of making the decision to sell a security and, therefore, we generally do not make decisions to sell specific agency securities until shortly prior to initiating a sell order. In some instances, we may sell specific agency securities by delivering such securities into existing short to-be-announced ("TBA") contracts. TBA market conventions require the identification of the specific securities to be delivered no later than 48 hours prior to settlement. If we settle a short TBA contract through the delivery of securities, we will generally identify the specific securities to be delivered within one to two days of the 48-hour deadline.

Interest Income

Interest Income

Interest income is accrued based on the outstanding principal amount of the investment securities and their contractual terms. Premiums or discounts associated with the purchase of investment securities are amortized or accreted into interest income, respectively, over the projected lives of the securities, including contractual payments and estimated prepayments using the interest method in accordance with ASC Subtopic 310-20, Receivables—Nonrefundable Fees and Other Costs ("ASC 310-20").

We estimate long-term prepayment speeds of our agency securities using a third-party service and market data. The third-party service estimates prepayment speeds using models that incorporate the forward yield curve, current mortgage rates and mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, volatility and other factors. We review the prepayment speeds estimated by the third-party service and compare the results to market consensus prepayment speeds, if available. We also consider historical prepayment speeds and current market conditions to validate the reasonableness of the prepayment speeds estimated by the third-party service and, based on our Manager's judgment, we may make adjustments to its estimates. Actual and anticipated prepayment experience is reviewed quarterly and effective yields are recalculated when differences arise between (i) our previously estimated future prepayments and (ii) the actual prepayments to date plus our currently estimated future prepayments. If the actual and estimated future prepayment experience differs from our prior estimate of prepayments, we are required to record an adjustment in the current period to the amortization or accretion of premiums and discounts for the cumulative difference in the effective yield through the reporting date.

Derivative and other Hedging Instruments

Derivative Instruments

We use a variety of derivative instruments to hedge a portion of our exposure to market risks, including interest rate risk, prepayment risk and extension risk. The objective of our risk management strategy is to reduce fluctuations in net book value over a range of interest rate scenarios. In particular, we attempt to mitigate the risk of the cost of our variable rate liabilities increasing during a period of rising interest rates. The principal instruments that we use are interest rate swaps and options to enter into interest rate swaps ("swaptions"). We also utilize forward contracts for the purchase or sale of agency MBS securities on a generic pool basis, or a TBA contract, and on a non-generic, specified pool basis, and we utilize U.S. Treasury securities and U.S. Treasury futures contracts, primarily through short sales. We may also purchase or write put or call options on TBA securities and we may invest in other types of mortgage derivatives, such as interest and principal-only securities.

We may also enter into TBA contracts as a means of investing in and financing agency securities (thereby increasing our "at risk" leverage) or as a means of disposing of or reducing our exposure to agency securities (thereby reducing our "at risk" leverage). Pursuant to TBA contracts, we agree to purchase or sell, for future delivery, agency securities with certain principal and interest terms and certain types of collateral, but the particular agency securities to be delivered are not identified until shortly before the TBA settlement date. We also may choose, prior to settlement, to move the settlement of these securities out to a later date by entering into an offsetting short or long position (referred to as a "pair off"), net settling the paired off positions for cash, and simultaneously purchasing or selling a similar TBA contract for a later settlement date. This transaction is commonly referred to as a "dollar roll." The agency securities purchased or sold for a forward settlement date are typically priced at a discount to agency securities for settlement in the current month. This difference (or discount) is referred to as the "price drop." The price drop is the economic equivalent of net interest carry income on the underlying agency securities over the roll period (interest income less implied financing cost) and is commonly referred to as "dollar roll income/loss." Consequently, forward purchases of agency securities and dollar roll transactions represent a form of off-balance sheet financing.

We account for derivative instruments in accordance with ASC Topic 815, Derivatives and Hedging ("ASC 815"). ASC 815 requires an entity to recognize all derivatives as either assets or liabilities in the balance sheet and to measure those instruments at fair value.

Our derivative agreements generally contain provisions that allow for netting or setting off derivative assets and liabilities with the counterparty; however, we report related assets and liabilities on a gross basis in our consolidated balance sheets. Derivative instruments in a gain position are reported as derivative assets at fair value and derivative instruments in a loss position are reported as derivative liabilities at fair value in our consolidated balance sheets. Changes in fair value of derivative instruments and periodic settlements related to our derivative instruments are recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Cash receipts and payments related to derivative instruments are classified in our consolidated statements of cash flows according to the underlying nature or purpose of the derivative transaction, generally in the investing section.

The use of derivatives creates exposure to credit risk relating to potential losses that could be recognized in the event that the counterparties to these instruments fail to perform their obligations under the contracts. We attempt to minimize this risk by limiting our counterparties to major financial institutions with acceptable credit ratings, monitoring positions with individual counterparties and adjusting posted collateral as required.

Discontinuation of hedge accounting for interest rate swap agreements

Prior to September 30, 2011, we entered into interest rate swap agreements typically with the intention of qualifying for hedge accounting under ASC 815. However, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps. Upon discontinuation of hedge accounting, the net deferred loss related to our de-designated interest rate swaps remained in accumulated OCI and is being reclassified from accumulated OCI into interest expense on a straight-line basis over the remaining term of each interest rate swap.

Interest rate swap agreements

We use interest rate swaps to hedge the variable cash flows associated with borrowings made under our repurchase agreement facilities. Under our interest rate swap agreements, we typically pay a fixed rate and receive a floating rate based on one, three or six-month LIBOR ("payer swaps") with terms up to 20 years. The floating rate we receive under our swap agreements has the effect of offsetting the repricing characteristics of our repurchase agreements and cash flows on such liabilities. Our swap agreements are privately negotiated in the over−the−counter ("OTC") market and may be centrally cleared through a registered commodities exchange ("centrally cleared swaps").

We estimate the fair value of our centrally cleared interest rate swaps using the daily settlement price determined by the respective exchange. Centrally cleared swaps are valued by the exchange using a pricing model that references the underlying rates including the overnight index swap rate and LIBOR forward rate to produce the daily settlement price.

We estimate the fair value of our "non-centrally cleared" swaps using a combination of inputs from counterparty and third-party pricing models to estimate the net present value of the future cash flows using the forward interest rate yield curve in effect as of the end of the measurement period. We also incorporate both our own and our counterparties' nonperformance risk in estimating the fair value of our interest rate swaps. In considering the effect of nonperformance risk, we consider the impact of netting and credit enhancements, such as collateral postings and guarantees, and have concluded that our own and our counterparty risk is not significant to the overall valuation of these agreements.

Interest rate swaptions

We purchase interest rate swaptions to help mitigate the potential impact of larger increases or decreases in interest rates on the performance of our investment portfolio (referred to as "convexity risk"). The interest rate swaptions provide us the option to enter into an interest rate swap agreement for a predetermined notional amount, stated term and pay and receive interest rates in the future. Our swaption agreements typically provide us the option to enter into a pay fixed rate interest rate swap, which we refer as "payer swaptions." We may also enter into swaption agreements that provide us the option to enter into a receive fixed interest rate swap, which we refer to as "receiver swaptions." The premium paid for interest rate swaptions is reported as an asset in our consolidated balance sheets. The premium is valued at an amount equal to the fair value of the swaption that would have the effect of closing the position adjusted for nonperformance risk, if any. The difference between the premium and the fair value of the swaption is reported in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. If a swaption expires unexercised, the realized loss on the swaption would be equal to the premium paid. If we sell or exercise a swaption, the realized gain or loss on the swaption would be equal to the difference between the cash or the fair value of the underlying interest rate swap received and the premium paid.

Our interest rate swaption agreements are privately negotiated in the OTC market and are not subject to central clearing. We estimate the fair value of interest rate swaptions using a combination of inputs from counterparty and third-party pricing models based on the fair value of the future interest rate swap that we have the option to enter into as well as the remaining length of time that we have to exercise the option, adjusted for non-performance risk, if any.

TBA securities

A TBA security is a forward contract for the purchase ("long position") or sale ("short position") of agency MBS at a predetermined price, face amount, issuer, coupon and stated maturity on an agreed-upon future date. The specific agency MBS delivered into the contract upon the settlement date, published each month by the Securities Industry and Financial Markets Association, are not known at the time of the transaction. We may enter into TBA contracts as a means of hedging against short-term changes in interest rates. We may also enter into TBA contracts as a means of acquiring or disposing of agency securities and we may from time to time utilize TBA dollar roll transactions to finance agency MBS purchases.

We account for TBA contracts as derivative instruments since either the TBA contracts do not settle in the shortest period of time possible or we cannot assert that it is probable at inception and throughout the term of the TBA contract that we will take physical delivery of the agency security upon settlement of the contract. We account for TBA dollar roll transactions as a series of derivative transactions. Gains, losses and dollar roll income associated with our TBA contracts and dollar roll transactions are recognized in our consolidated statements of comprehensive income in gain (loss) on derivative instruments and other securities, net.

We estimate the fair value of TBA securities based on similar methods used to value our agency MBS securities.

U.S. Treasury securities

We purchase or sell short U.S. Treasury securities and U.S. Treasury futures contracts to help mitigate the potential impact of changes in interest rates on the performance of our portfolio. We borrow securities to cover short sales of U.S. Treasury securities under reverse repurchase agreements. We account for these as securities borrowing transactions and recognize an obligation to return the borrowed securities at fair value on the balance sheet based on the value of the underlying borrowed securities as of the reporting date. Gains and losses associated with purchases and short sales of U.S. Treasury securities and U.S. Treasury futures contracts are recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Derivative and other Hedging Instruments

Discontinuation of hedge accounting for interest rate swap agreements

Prior to September 30, 2011, we entered into interest rate swap agreements typically with the intention of qualifying for hedge accounting under ASC 815. However, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps. Upon discontinuation of hedge accounting, the net deferred loss related to our de-designated interest rate swaps remained in accumulated OCI and is being reclassified from accumulated OCI into interest expense on a straight-line basis over the remaining term of each interest rate swap.

XML

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 30, 2014
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Entity Registrant Name	American Capital Agency Corp
Entity Central Index Key	0001423689
Entity Filer Category	Large Accelerated Filer
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		352,788,707
Trading Symbol	AGNC
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes

XML

Investment Securities (Tables)

3 Months Ended

Mar. 31, 2014

Available-for-sale Securities [Abstract]

Agency Securities [Table Text Block]

The following tables summarize our investments in agency MBS as of March 31, 2014 (dollars in millions):

	March 31, 2014
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	42,131		$	11,730		$	209		$	54,070
Unamortized discount	(17		)	(6		)	—			(23		)
Unamortized premium	1,887			573			6			2,466
Amortized cost	44,001			12,297			215			56,513
Gross unrealized gains	238			93			4			335
Gross unrealized losses	(646		)	(257		)	—			(903		)
Total available-for-sale agency MBS, at fair value	43,593			12,133			219			55,945
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	386			29			—			415
Gross unrealized gains	20			4			—			24
Gross unrealized losses	(6		)	(1		)	—			(7		)
Total agency MBS remeasured at fair value through earnings	400			32			—			432
Total agency MBS, at fair value	$	43,993		$	12,165		$	219		$	56,377
Weighted average coupon as of March 31, 2014 2	3.62		%	3.75		%	3.54		%	3.65		%
Weighted average yield as of March 31, 2014 3	2.70		%	2.82		%	1.66		%	2.72		%
Weighted average yield for the quarter ended March 31, 2014 3	2.53		%	2.61		%	1.67		%	2.54		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.3 billion and the weighted average contractual interest we are entitled to receive was 5.49% of this amount as of March 31, 2014. The par value of our principal-only agency MBS strips was $265 million as of March 31, 2014.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of March 31, 2014.

3. Incorporates a weighted average future constant prepayment rate assumption of 8% based on forward rates as of March 31, 2014

The following tables summarize our investments in agency MBS as of December 31, 2013 (dollars in millions):

	December 31, 2013
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	50,914		$	12,640		$	223		$	63,777
Unamortized discount	(25		)	(7		)	—			(32		)
Unamortized premium	2,210			631			7			2,848
Amortized cost	53,099			13,264			230			66,593
Gross unrealized gains	181			74			5			260
Gross unrealized losses	(991		)	(358		)	—			(1,349		)
Total available-for-sale agency MBS, at fair value	52,289			12,980			235			65,504
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	400			32			—			432
Gross unrealized gains	13			3			—			16
Gross unrealized losses	(9		)	(2		)	—			(11		)
Total agency MBS remeasured at fair value through earnings	404			33			—			437
Total agency MBS, at fair value	$	52,693		$	13,013		$	235		$	65,941
Weighted average coupon as of December 31, 2013 2	3.53		%	3.78		%	3.56		%	3.58		%
Weighted average yield as of December 31, 2013 3	2.66		%	2.87		%	1.66		%	2.70		%
Weighted average yield for the year ended December 31, 2013 3	2.74		%	2.87		%	1.79		%	2.77		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.4 billion and the weighted average contractual interest we are entitled to receive was 5.50% of this amount as of December 31, 2013. The par value of our principal-only agency MBS strips was $271 million as of December 31, 2013.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of December 31, 2013.

3. Incorporates a weighted average future constant prepayment rate assumption of 7% based on forward rates as of December 31, 2013.

	December 31, 2013
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	64,057	$	242	$	(1,338	)	$	62,961
Adjustable rate	1,223		15		(3		)	1,235
CMO	1,313		3		(8		)	1,308
Interest-only and principal-only strips	432		16		(11		)	437
Total agency MBS	$	67,025	$	276	$	(1,360	)	$	65,941

Components of Investment Securities [Table Text Block]

	March 31, 2014
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	54,056	$	307	$	(902	)	$	53,461
Adjustable rate	1,176		19		—			1,195
CMO	1,281		9		(1		)	1,289
Interest-only and principal-only strips	415		24		(7		)	432
Total agency MBS	$	56,928	$	359	$	(910	)	$	56,377

	December 31, 2013
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	64,057	$	242	$	(1,338	)	$	62,961
Adjustable rate	1,223		15		(3		)	1,235
CMO	1,313		3		(8		)	1,308
Interest-only and principal-only strips	432		16		(11		)	437
Total agency MBS	$	67,025	$	276	$	(1,360	)	$	65,941

Summary Of Agency Securities Estimated Weighted Average Life Classifications

The following table summarizes our agency MBS classified as available-for-sale as of March 31, 2014 and December 31, 2013 according to their estimated weighted average life classification (dollars in millions):

	March 31, 2014						December 31, 2013
Estimated Weighted Average Life of Agency MBS Classified as Available-for-Sale 1	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield
≤ 1 year	$	27	$	25	2.49%	1.81%	$	129	$	129	3.07%	2.53%
> 1 year and ≤ 3 years	191		186		4.86%	3.29%	498		491		4.08%	2.25%
> 3 years and ≤ 5 years	22,947		22,758		3.55%	2.53%	24,471		24,342		3.59%	2.57%
> 5 years and ≤10 years	32,534		33,284		3.51%	2.80%	38,522		39,635		3.39%	2.73%
> 10 years	246		260		3.61%	2.87%	1,884		1,996		3.66%	2.96%
Total	$	55,945	$	56,513	3.53%	2.70%	$	65,504	$	66,593	3.47%	2.68%

 _______________________

1. Excludes interest and principal-only strips.

Summary of Changes in Accumulated OCI for Agency Securitie [Table Text Block]

The following table summarizes changes in accumulated OCI, a separate component of stockholders' equity, for our available-for-sale securities for the three months endedMarch 31, 2014 and 2013 (in millions):

Agency Securities Classified as Available-for-Sale	Beginning Accumulated OCI Balance			Unrealized Gains and (Losses), Net		Reversal of  Unrealized (Gains) and Losses, Net on Realization	Ending Accumulated OCI Balance
Three months ended March 31, 2014	$	(1,087	)	502		19	$	(566	)
Three months ended March 31, 2013	$	2,040		(863	)	26	$	1,203

Summary of Continuous Unrealized Loss Position of Available for Sale Securities [Table Text Block]

The following table presents the gross unrealized loss and fair values of our available-for-sale agency securities by length of time that such securities have been in a continuous unrealized loss position as of March 31, 2014 and December 31 and March 31, 2013 (in millions):

	Unrealized Loss Position For
	Less than 12 Months					12 Months or More					Total
Agency Securities Classified as Available-for-Sale	Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss
March 31, 2014	$	22,112	$	(442	)	$	8,673	$	(461	)	$	30,785	$	(903	)
December 31, 2013	$	42,853	$	(1,248	)	$	1,586	$	(101	)	$	44,439	$	(1,349	)
March 31, 2013	$	25,963	$	(174	)	$	84	$	(2	)	$	26,047	$	(176	)

Summary of Net Gain from Sale of Agency Securities [Table Text Block]

The following table is a summary of our net gain (loss) from the sale of agency securities classified as available-for-sale for the three months endedMarch 31, 2014 and 2013 (in millions): 

	Three Months Ended
Agency Securities Classified as Available-for-Sale	March 31, 2014			March 31, 2013
Agency MBS sold, at cost	$	(9,711	)	$	(20,328	)
Proceeds from agency MBS sold 1	9,692			20,302
Net loss on sale of agency MBS	$	(19	)	$	(26	)
Gross gain on sale of agency MBS	$	42		$	87
Gross loss on sale of agency MBS	(61		)	(113		)
Net loss on sale of agency MBS	$	(19	)	$	(26	)

  ________________________

1. Proceeds include cash received during the period, plus receivable for agency MBS sold during the period as of period end.

Summary Of Agency Securities Pledged As Collateral Under Repurchase Agreements by Remaining Maturity

The following table summarizes our securities pledged as collateral under repurchase agreements and debt of consolidated VIEs by remaining maturity, including securities pledged related to sold but not yet settled securities, as of March 31, 2014 and 2013 (in millions):

	March 31, 2014						December 31, 2013
Agency Securities Pledged by Remaining Maturity of Repurchase Agreements and Debt of Consolidated VIEs	Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities		Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities
Agency MBS:
≤ 30 days	$	17,683	$	17,858	$	49	$	27,694	$	28,125	$	76
> 30 and ≤ 60 days	15,881		16,024		44		14,955		15,210		42
> 60 and ≤ 90 days	5,585		5,630		16		10,117		10,290		28
> 90 days	14,315		14,519		41		11,401		11,623		32
Total agency MBS	53,464		54,031		150		64,167		65,248		178
U.S. Treasury securities:
1 day	125		125		—		3,708		3,760		16
Total	$	53,589	$	54,156	$	150	$	67,875	$	69,008	$	194

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Consolidated Statements Of Comprehensive Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Interest income:
Interest income	$ 399	$ 547
Interest expense	108	140
Net interest income	291	407
Other income, net:
Gain on sale of agency securities, net	(19)	(26)
(Loss) gain on derivative instruments and other securities, net	(378)	(98)
Total other income, net	(397)	(124)
Expenses:
Management fees	29	33
General and administrative expenses	6	9
Total expenses	35	42
Income before income tax	(141)	241
Income tax benefit, net	0	10
Dividend on preferred stock	3	3
Net income	(141)	231
Net (loss) income (attributable) available to common shareholders	(144)	228
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	521	(837)
Unrealized (loss) gain on derivative instruments, net	43	49
Other comprehensive income (loss)	564	(788)
Comprehensive income	423	(557)
Dividend on preferred stock	3	3
Comprehensive income available to common shareholders	$ 420	$ (560)
Weighted average number of common shares outstanding-basic and diluted	354.8	356.2
Net income per common share - basic and diluted	$ (0.41)	$ 0.64
Comprehensive income per share - basic and diluted	$ 1.18	$ (1.57)
Dividends declared per common share	$ 0.65	$ 1.25

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Derivative and Other Hedging Instruments

3 Months Ended

Mar. 31, 2014

Derivative Asset, Fair Value, Amount Not Offset Against Collateral [Abstract]

Derivative and Other Hedging Instruments

Derivative and Other Hedging Instruments

In connection with our risk management strategy, we hedge a portion of our interest rate risk by entering into derivative and other hedging instrument contracts. We typically enter into agreements for interest rate swaps and interest rate swaptions. We may also purchase or short TBA and U.S. Treasury securities, purchase or write put or call options on TBA securities or we may invest in other types of mortgage derivative securities, such as interest and principal-only securities. Our risk management strategy attempts to manage the overall risk of the portfolio, reduce fluctuations in book value and generate additional income distributable to stockholders. For additional information regarding our derivative instruments and our overall risk management strategy, please refer to the discussion of derivative and other hedging instruments in Note 3.

Prior to September 30, 2011, our interest rate swaps were typically designated as cash flow hedges under ASC 815; however, as of September 30, 2011, we elected to discontinue hedge accounting for our interest rate swaps in order to increase our funding flexibility. For the three months endedMarch 31, 2014 and 2013, we reclassified $43 million and $49 million, respectively, of net deferred losses from accumulated OCI into interest expense related to our de-designated interest rate swaps and recognized an equal, but offsetting, amount in other comprehensive income. Our total net periodic interest costs on our swap portfolio for these periods were $126 million and $133 million, respectively. The difference of $83 million and $84 million for these periods, respectively, is reported in our accompanying consolidated statements of comprehensive income in gain (loss) on derivative instruments and other securities, net. As of March 31, 2014, the remaining net deferred loss in accumulated OCI related to de-designated interest rate swaps was $253 million and will be reclassified from OCI into interest expense over a remaining weighted average period of 1.9 years. As of March 31, 2014, the net deferred loss expected to be reclassified from OCI into interest expense over the next twelve months was $143 million.

Derivative Assets (Liabilities), at Fair Value

The table below summarizes fair value information about our derivative assets and liabilities as of March 31, 2014 and December 31, 2013 (in millions):

Derivatives Instruments	Balance Sheet Location	March 31, 2014			December 31, 2013
Interest rate swaps	Derivative assets, at fair value	$	560		$	880
Swaptions	Derivative assets, at fair value	96			258
TBA securities	Derivative assets, at fair value	24			17
U.S. Treasury futures - short	Derivative assets, at fair value	6			39
		$	686		$	1,194
Interest rate swaps	Derivative liabilities, at fair value	$	(368	)	$	(400	)
TBA securities	Derivative liabilities, at fair value	(49		)	(22		)
		$	(417	)	$	(422	)

 Additionally, as of March 31, 2014 and December 31, 2013, we had obligations to return U.S. Treasury securities borrowed under reverse repurchase agreements accounted for as securities borrowing transactions at a fair value of $6.7 billion and $1.8 billion, respectively. The borrowed securities were used to cover short sales of U.S. Treasury securities from which we received total proceeds of $6.7 billion and $1.9 billion, respectively. The change in fair value of the borrowed securities is recorded in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

The following tables summarize our interest rate swap agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
Payer Interest Rate Swaps	Notional Amount 1		Average Fixed Pay Rate 2		Average Receive Rate 3		Net Estimated Fair Value			Average Maturity (Years) 4
≤ 3 years	$	16,650	1.55	%	0.18	%	$	(327	)	1.4
> 3 to ≤ 5 years	10,575		1.29	%	0.24	%	78			4.0
> 5 to ≤ 7 years	6,250		2.09	%	0.25	%	66			5.9
> 7 to ≤ 10 years	10,175		2.51	%	0.24	%	287			8.5
> 10 years	2,750		3.17	%	0.24	%	88			14.1
Total Payer Interest Rate Swaps	$	46,400	1.87	%	0.21	%	$	192		4.9

  ________________________

1. Notional amount includes forward starting swaps of $9.5 billion with an average forward start date of 1.9 years from March 31, 2014.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of March 31, 2014.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from March 31, 2014 through stated maturity date.

	December 31, 2013
Payer Interest Rate Swaps 1	Notional Amount		Average Fixed Pay Rate	Average Receive Rate	Net Estimated Fair Value			Average Maturity (Years)
≤ 3 years	$	16,750	1.57%	0.19%	$	(382	)	1.6
> 3 to ≤ 5 years	10,225		1.07%	0.24%	81			3.9
> 5 to ≤ 7 years	5,700		1.97%	0.26%	113			6.0
> 7 to ≤ 10 years	8,825		2.28%	0.24%	499			8.8
> 10 years	1,750		2.79%	0.24%	169			14.7
Total Payer Interest Rate Swaps	$	43,250	1.70%	0.22%	$	480		4.7

  ________________________

1. Notional amount includes forward starting swaps of $4.0 billion with an average forward start date of 1.9 years from December 31, 2013.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of December 31, 2013.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from December 31, 2013 through stated maturity date.

The following tables summarize our interest rate swaption agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	111	$	44	5	$	4,650	2.98%	3M	6.4
> 1 to ≤ 2 years	60		34		18	2,450		3.55%	3M	4.5
> 2 to ≤ 3 years	23		15		28	900		3.99%	3M	5.4
Total Payer Swaptions	$	194	$	93	12	$	8,000	3.27%	3M	5.7

	March 31, 2014
	Option					Underlying Receiver Swap
	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Receive Rate	Average  Pay Rate (LIBOR)	Average Term (Years)
Receiver Swaption	$	3	$	3	12	$	1,000	2.26%	3M	10.0

	December 31, 2013
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	193	$	117	4	$	9,400	2.87%	3M	7.8
> 1 to ≤ 2 years	105		92		19	3,600		3.40%	3M	5.6
> 2 to ≤ 3 years	35		45		30	1,150		3.81%	3M	5.8
> 3 to ≤ 5 years	2		4		52	100		4.80%	3M	7.0
Total Payer Swaptions	$	335	$	258	10	$	14,250	3.09%	3M	7.0

We did not have any receiver swaptions as of December 31, 2013.

The following table summarizes our contracts to purchase and sell TBA contracts as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014												December 31, 2013
Purchase and Sale Contracts for TBAs	Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4			Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4
TBA securities:
Purchase contracts	$	17,699		$	18,136		$	18,095		$	(41	)	$	6,660		$	6,882		$	6,864		$	(18	)
Sale contracts	(3,790		)	(4,009		)	(3,993		)	16			(4,541		)	(4,606		)	(4,593		)	13
TBA securities, net 5	$	13,909		$	14,127		$	14,102		$	(25	)	$	2,119		$	2,276		$	2,271		$	(5	)

  ________________________

1. Notional amount represents the par value (or principal balance) of the underlying agency security.

2. Cost basis represents the forward price to be paid / (received) for the underlying agency security.

3. Market value represents the current market value of the TBA contract (or of the underlying agency security) as of period-end.

4. Net carrying value represents the difference between the market value and the cost basis of the TBA contract as of period-end and is reported in derivative assets / (liabilities), at fair value in our consolidated balance sheets.

5. Includes 15-year and 30-year TBA securities of varying coupons

Gain (Loss) From Derivative Instruments and Other Securities, Net

The tables below summarize the effect of our derivative and other hedging instruments on our consolidated statements of comprehensive income for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31, 2014
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2013			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2014			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA securities	$	2,119		24,376		(12,586	)	$	13,909		$	60
Interest rate swaps	$	(43,250	)	(5,900	)	2,750		$	(46,400	)	(380		)
Payer swaptions, net	$	(14,250	)	(1,000	)	7,250		$	(8,000	)	(105		)
Receiver swaption	$	—		1,000		—		$	1,000		—
U.S. Treasury securities - short position	$	(2,007	)	(7,241	)	2,462		$	(6,786	)	(45		)
U.S. Treasury securities - long position	$	3,927		1,900		(5,627	)	$	200		72
U.S. Treasury futures contracts - short position	$	(1,730	)	(730	)	1,730		$	(730	)	(36		)
TBA put option	$	—		(50	)	50		$	—		—
											$	(434	)

  ________________________________

1. Excludes a net gain of $49 million from investments in REIT equity securities, a net loss of $3 million from debt of consolidated VIEs, a net gain of$12 million on interest and principal-only securities and other miscellaneous net losses of $2 million recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

	Three Months Ended March 31, 2013
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2012			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2013			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA and forward settling agency securities	$	12,477		43,267		(29,476	)	$	26,268		$	(102	)
Interest rate swaps	$	(46,850	)	(5,750	)	1,350		$	(51,250	)	54
Payer swaptions	$	(14,450	)	(11,150	)	2,700		$	(22,900	)	(44		)
U.S. Treasury securities - short position	$	(11,835	)	(9,935	)	9,210		$	(12,560	)	(3		)
U.S. Treasury futures contracts - short position	$	—		(800	)	—		$	(800	)	(15		)
											$	(110	)

  ______________________

1. Excludes a net loss of $1 million on interest and principal-only securities and a net gain of $13 million from debt of consolidated VIEs recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

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Repurchase Agreements And Other Debt

3 Months Ended

Mar. 31, 2014

Disclosure of Repurchase Agreements [Abstract]

Repurchase Agreements And Other Debt

Repurchase Agreements and Other Debt

We pledge certain of our securities as collateral under repurchase arrangements with financial institutions, the terms and conditions of which are negotiated on a transaction-by-transaction basis (see Note 7). Interest rates on these borrowings are generally based on LIBOR plus or minus a margin and amounts available to be borrowed are dependent upon the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, type of security and liquidity conditions within the banking, mortgage finance and real estate industries. If the fair value of our pledged securities declines, lenders will typically require us to post additional collateral or pay down borrowings to re-establish agreed upon collateral requirements, referred to as "margin calls." Similarly, if the fair value of our pledged securities increases, lenders may release collateral back to us. As of March 31, 2014, we have met all margin call requirements.

The following table summarizes our borrowings under repurchase arrangements and weighted average interest rates classified by remaining maturities as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014					December 31, 2013
Remaining Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity
Agency MBS:
≤ 1 month	$	13,440	0.37	%	15	$	23,577	0.42	%	15
> 1 to ≤ 3 months	17,396		0.38	%	54	20,490		0.43	%	61
> 3 to ≤ 6 months	5,242		0.45	%	137	6,946		0.45	%	140
> 6 to ≤ 9 months	4,560		0.51	%	232	2,232		0.53	%	230
> 9 to ≤ 12 months	4,171		0.49	%	326	3,607		0.54	%	323
> 12 to ≤ 24 months	3,232		0.57	%	517	3,261		0.60	%	603
> 24 to ≤ 36 months	540		0.61	%	876	500		0.62	%	930
> 36 months	999		0.66	%	1,599	602		0.68	%	1,468
Total agency MBS	49,580		0.43	%	162	61,215		0.45	%	124
U.S. Treasury securities:
1 day	149		0.05	%	1	2,318		0.02	%	1
Total / Weighted Average	$	49,729	0.43	%	161	$	63,533	0.44	%	119

As of March 31, 2014 and December 31, 2013, debt of consolidated VIEs, at fair value ("other debt") was $874 million and $910 million, respectively. As of March 31, 2014 and December 31, 2013, our other debt had a weighted average interest rate of LIBOR plus 43 and 42 basis points and a principal balance of $863 million and $900 million, respectively. The actual maturities of our other debt are generally shorter than the stated contractual maturities. The actual maturities are affected by the contractual lives of the underlying agency MBS securitizing our other debt and periodic principal prepayments of such underlying securities. The estimated weighted average life of our other debt as of March 31, 2014 was 6.5 years.

As of March 31, 2014 and December 31, 2013, we also had outstanding forward commitments to purchase and sell agency securities through the TBA market (see Notes 3 and 6). These transactions, also referred to as TBA dollar roll transactions, represent a form of off-balance sheet financing and serve to either increase, in the case of forward purchases, or decrease, in the case of forward sales, our "at risk" leverage. However, pursuant to ASC 815, we typically account for such transactions as one or more series of derivative transactions and, consequently, they are not included in our on-balance sheet debt or measurement of commensurate leverage ratios.

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Stockholders' Equity Equity Offerings (Tables)

3 Months Ended

Mar. 31, 2014

Class of Stock [Line Items]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following table summarizes changes to accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

Accumulated Other Comprehensive (Loss) Income	Net Unrealized Gain (Loss) on Available-for-Sale MBS			Net Unrealized Gain (Loss) on Swaps			Total Accumulated OCI Balance
Balance as of December 31, 2013	$	(1,087	)	$	(296	)	$	(1,383	)
OCI before reclassifications	502			—			502
Amounts reclassified from accumulated OCI	19			43			62
Balance as of March 31, 2014	$	(566	)	$	(253	)	$	(819	)
Balance as of December 31, 2012	$	2,040		$	(485	)	$	1,555
OCI before reclassifications	(863		)	—			(863		)
Amounts reclassified from accumulated OCI	26			49			75
Balance as of March 31, 2013	$	1,203		$	(436	)	$	767

The following table summarizes reclassifications out of accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,				Line Item in the Consolidated Statements of Comprehensive Income Where Net Income is Presented
Amounts Reclassified from Accumulated OCI	2014		2013
Loss amounts reclassified from accumulated OCI for available-for-sale MBS	$	19	$	26	Gain (loss) on sale of agency securities, net
Periodic interest costs of interest rate swaps previously designated as hedges under GAAP, net	43		49		Interest expense
Total reclassifications	$	62	$	75

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Repurchase Agreements and Other Debt (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Repurchase Agreements [Abstract]

Schedule of Borrowings under Repurchase Agreements and Weighted Average Interest Rates [Table Text Block]

The following table summarizes our borrowings under repurchase arrangements and weighted average interest rates classified by remaining maturities as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014					December 31, 2013
Remaining Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity	Repurchase Agreements		Weighted Average Interest Rate		Weighted Average Days to Maturity
Agency MBS:
≤ 1 month	$	13,440	0.37	%	15	$	23,577	0.42	%	15
> 1 to ≤ 3 months	17,396		0.38	%	54	20,490		0.43	%	61
> 3 to ≤ 6 months	5,242		0.45	%	137	6,946		0.45	%	140
> 6 to ≤ 9 months	4,560		0.51	%	232	2,232		0.53	%	230
> 9 to ≤ 12 months	4,171		0.49	%	326	3,607		0.54	%	323
> 12 to ≤ 24 months	3,232		0.57	%	517	3,261		0.60	%	603
> 24 to ≤ 36 months	540		0.61	%	876	500		0.62	%	930
> 36 months	999		0.66	%	1,599	602		0.68	%	1,468
Total agency MBS	49,580		0.43	%	162	61,215		0.45	%	124
U.S. Treasury securities:
1 day	149		0.05	%	1	2,318		0.02	%	1
Total / Weighted Average	$	49,729	0.43	%	161	$	63,533	0.44	%	119

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Stockholders' Equity

3 Months Ended

Mar. 31, 2014

Stockholders' Equity Note [Abstract]

Stockholders' Equity

Stockholders' Equity

Common Stock Repurchase Program

In October 2012, our Board of Directors adopted a program that provides for stock repurchases of up to $500 million of our outstanding shares of common stock through December 31, 2013.  In September 2013, our Board of Directors increased the authorized amount to $1 billion of our outstanding shares of common stock and extended its authorization through December 31, 2014. In January 2014, our Board of Directors increased the authorized amount by an additional $1 billion of our outstanding shares of common stock through December 31, 2014. Shares of our common stock may be purchased in the open market, including through block purchases, or through privately negotiated transactions, or pursuant to any trading plan that may be adopted in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.  The timing, manner, price and amount of any repurchases will be determined at our discretion and the program may be suspended, terminated or modified at any time for any reason.  We intend to repurchase shares only when the purchase price is less than our estimate of our current net asset value per share of our common stock. Generally, when we repurchase our common stock at a discount to our net asset value, the net asset value of our remaining shares of common stock outstanding increases. In addition, we do not intend to repurchase any shares from directors, officers or other affiliates. The program does not obligate us to acquire any specific number of shares, and all repurchases will be made in accordance with Rule 10b-18, which sets certain restrictions on the method, timing, price and volume of stock repurchases.

During the three months ended March 31, 2014, we repurchased approximately 3.4 million shares of our common stock at an average repurchase price of $22.10 per share, including expenses, totaling $74 million. As of March 31, 2014, the total remaining amount authorized for repurchases of our common stock was $992 million.

Accumulated Other Comprehensive Income (Loss)

The following table summarizes changes to accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

Accumulated Other Comprehensive (Loss) Income	Net Unrealized Gain (Loss) on Available-for-Sale MBS			Net Unrealized Gain (Loss) on Swaps			Total Accumulated OCI Balance
Balance as of December 31, 2013	$	(1,087	)	$	(296	)	$	(1,383	)
OCI before reclassifications	502			—			502
Amounts reclassified from accumulated OCI	19			43			62
Balance as of March 31, 2014	$	(566	)	$	(253	)	$	(819	)
Balance as of December 31, 2012	$	2,040		$	(485	)	$	1,555
OCI before reclassifications	(863		)	—			(863		)
Amounts reclassified from accumulated OCI	26			49			75
Balance as of March 31, 2013	$	1,203		$	(436	)	$	767

The following table summarizes reclassifications out of accumulated OCI for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31,				Line Item in the Consolidated Statements of Comprehensive Income Where Net Income is Presented
Amounts Reclassified from Accumulated OCI	2014		2013
Loss amounts reclassified from accumulated OCI for available-for-sale MBS	$	19	$	26	Gain (loss) on sale of agency securities, net
Periodic interest costs of interest rate swaps previously designated as hedges under GAAP, net	43		49		Interest expense
Total reclassifications	$	62	$	75

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Pledged Assets (Notes)

3 Months Ended

Mar. 31, 2014

Offsetting Assets and Liabilities [Abstract]

Pledged Assets [Text Block]

Pledged Assets

Our repurchase agreements and derivative contracts require us to fully collateralize our obligations under the agreements based upon our counterparties' collateral requirements and their determination of the fair value of the securities pledged as collateral, which fluctuates with changes in interest rates, credit quality and liquidity conditions within the investment banking, mortgage finance and real estate industries. In addition, obligations under our derivative agreements will typically vary over time based on similar factors as well as the remaining term of the derivative contract. We are also typically required to post initial collateral upon execution of derivative transactions, such as interest rate swaps and TBA contracts. If we breach any of these provisions, we will be required to fully settle our obligations under the agreements, which could include a forced liquidation of our pledged collateral.

Our repurchase agreement and derivative counterparties also apply a "haircut" to our pledged collateral, which means our collateral is valued at slightly less than market value and limits the amount we can borrow against our securities. This haircut reflects the underlying risk of the specific collateral and protects our counterparty against a change in its value. Our agreements do not specify the haircut; rather haircuts are determined on an individual transaction basis.

Consequently, the use of repurchase agreements and derivative instruments exposes us to credit risk relating to potential losses that could be recognized in the event that our counterparties fail to perform their obligations under such agreements. We minimize this risk by limiting our repurchase agreement and derivative counterparties to major financial institutions with acceptable credit ratings or to a registered clearinghouse, and we monitor our positions with individual counterparties. In the event of a default by a counterparty we may have difficulty obtaining our assets pledged as collateral to such counterparty and may not receive payments provided for under the terms of our derivative agreements. In the case of centrally cleared instruments, we could be exposed to credit risk if the central clearing agency or a clearing member defaults on its respective obligation to perform under the contract. However, we believe that the risk is minimal due to clearing exchange initial and daily mark to market margin requirements and clearinghouse guarantee funds and other resources that are available in the event of a clearing member default.

Further, each of our International Swaps and Derivatives Association ("ISDA") Master Agreements also contains a cross default provision under which a default under certain of our other indebtedness in excess of a certain threshold causes an event of default under the agreement. Threshold amounts vary by lender. Following an event of default, we could be required to settle our obligations under the agreements. Additionally, under certain of our ISDA Master Agreements, we could be required to settle our obligations under the agreements if we fail to maintain certain minimum stockholders' equity thresholds or our REIT status or if we fail to comply with limits on our leverage above certain specified levels. As of March 31, 2014, the fair value of additional collateral that could be required to be posted as a result of the credit-risk-related contingent features being triggered was not material to our financial statements.

As of March 31, 2014, our amount at risk with any counterparty related to our repurchase agreements was less than 4% of our stockholders' equity and our amount at risk with any counterparty related to our interest rate swap and swaption agreements, excluding centrally cleared swaps, was less than 1% of our stockholders' equity.

Assets Pledged to Counterparties

The following tables summarize our assets pledged as collateral under our repurchase agreements, debt of consolidated VIEs, derivative agreements and prime broker agreements by type, including securities pledged related to securities sold but not yet settled, as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	52,047	$	1,417	$	56	$	519	$	54,039
U.S. Treasury securities - fair value	125		—		71		—		196
Accrued interest on pledged securities	146		4		—		1		151
Restricted cash	1		—		224		44		269
Total	$	52,319	$	1,421	$	351	$	564	$	54,655

	December 31, 2013
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	62,708	$	1,459	$	28	$	91	$	64,286
U.S. Treasury securities - fair value	3,708		—		70		—		3,778
Accrued interest on pledged securities	189		5		1		—		195
Restricted cash	3		—		41		57		101
Total	$	66,608	$	1,464	$	140	$	148	$	68,360

The cash and cash equivalents and agency securities pledged as collateral under our derivative agreements are included in restricted cash and agency securities, at fair value, respectively, on our consolidated balance sheets.

The following table summarizes our securities pledged as collateral under repurchase agreements and debt of consolidated VIEs by remaining maturity, including securities pledged related to sold but not yet settled securities, as of March 31, 2014 and 2013 (in millions):

	March 31, 2014						December 31, 2013
Agency Securities Pledged by Remaining Maturity of Repurchase Agreements and Debt of Consolidated VIEs	Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities		Fair Value of Pledged Securities		Amortized Cost of Pledged Securities		Accrued Interest on Pledged Securities
Agency MBS:
≤ 30 days	$	17,683	$	17,858	$	49	$	27,694	$	28,125	$	76
> 30 and ≤ 60 days	15,881		16,024		44		14,955		15,210		42
> 60 and ≤ 90 days	5,585		5,630		16		10,117		10,290		28
> 90 days	14,315		14,519		41		11,401		11,623		32
Total agency MBS	53,464		54,031		150		64,167		65,248		178
U.S. Treasury securities:
1 day	125		125		—		3,708		3,760		16
Total	$	53,589	$	54,156	$	150	$	67,875	$	69,008	$	194

As of March 31, 2014 and December 31, 2013, none of our repurchase agreement borrowings backed by agency MBS were due on demand or mature overnight.

Assets Pledged from Counterparties

As of March 31, 2014 and December 31, 2013, we also had assets pledged to us as collateral under our repurchase, reverse repurchase and derivative agreements summarized in the tables below (in millions).

	March 31, 2014
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	17	$	17
U.S. Treasury securities - fair value	—		6,658		56		6,714
Cash	16		—		167		183
Total	$	16	$	6,658	$	240	$	6,914

	December 31, 2013
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	82	$	82
U.S. Treasury securities - fair value	—		1,848		164		2,012
Cash	—		—		366		366
Total	$	—	$	1,848	$	612	$	2,460

U.S Treasury securities received as collateral under our reverse repurchase agreements are accounted for as securities borrowing transactions and are used to cover short sales of the same securities. We recognize a corresponding obligation to return the borrowed securities at fair value on the accompanying consolidated balance sheets based on the value of the underlying borrowed securities as of the reporting date.

Cash collateral received is recognized in cash and cash equivalents with a corresponding amount recognized in accounts payable and other accrued liabilities on the accompanying consolidated balance sheets.

Offsetting Assets and Liabilities

Certain of our repurchase agreements and derivative transactions are governed by underlying agreements that generally provide for a right of setoff under master netting arrangements (or similar agreements), including in the event of default or in the event of bankruptcy of either party to the transactions. We present our assets and liabilities subject to such arrangements on a gross basis in our consolidated balance sheets.

The following tables present information about our assets and liabilities that are subject to such arrangements and can potentially be offset on our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in millions):

	Offsetting of Financial Assets and Derivative Assets
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Received 2
March 31, 2014
Interest rate swap and swaption agreements, at fair value 1	$	656	$	—	$	656	$	(287	)	$	(240	)	$	129
Receivable under reverse repurchase agreements	6,685		—		6,685		(4,773		)	(1,912		)	—
Total derivative, other hedging instruments and other assets	$	7,341	$	—	$	7,341	$	(5,060	)	$	(2,152	)	$	129
December 31, 2013
Interest rate swap and swaption agreements, at fair value 1	$	1,138	$	—	$	1,138	$	(331	)	$	(610	)	$	197
Receivable under reverse repurchase agreements	1,881		—		1,881		(1,881		)	—			—
Total derivative, other hedging instruments and other assets	$	3,019	$	—	$	3,019	$	(2,212	)	$	(610	)	$	197

	Offsetting of Financial Liabilities and Derivative Liabilities
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Pledged 2
March 31, 2014
Interest rate swap agreements, at fair value 1	$	368	$	—	$	368	$	(288	)	$	(80	)	$	—
Repurchase agreements	49,729		—		49,729		(4,773		)	(44,806		)	150
Total derivative, other hedging instruments and other liabilities	$	50,097	$	—	$	50,097	$	(5,061	)	$	(44,886	)	$	150
December 31, 2013
Interest rate swap agreements, at fair value 1	$	400	$	—	$	400	$	(331	)	$	(69	)	$	—
Repurchase agreements	63,533		—		63,533		(1,881		)	(61,652		)	—
Total derivative, other hedging instruments and other liabilities	$	63,933	$	—	$	63,933	$	(2,212	)	$	(61,721	)	$	—

_______________________

1. Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 6 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.

2. Includes cash and securities received / pledged as collateral, at fair value. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable. Refer to Note 4 for additional information regarding assets pledged as collateral.

Offsetting Assets and Liabilities [Text Block]

	Offsetting of Financial Liabilities and Derivative Liabilities
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Pledged 2
March 31, 2014
Interest rate swap agreements, at fair value 1	$	368	$	—	$	368	$	(288	)	$	(80	)	$	—
Repurchase agreements	49,729		—		49,729		(4,773		)	(44,806		)	150
Total derivative, other hedging instruments and other liabilities	$	50,097	$	—	$	50,097	$	(5,061	)	$	(44,886	)	$	150
December 31, 2013
Interest rate swap agreements, at fair value 1	$	400	$	—	$	400	$	(331	)	$	(69	)	$	—
Repurchase agreements	63,533		—		63,533		(1,881		)	(61,652		)	—
Total derivative, other hedging instruments and other liabilities	$	63,933	$	—	$	63,933	$	(2,212	)	$	(61,721	)	$	—

_______________________

1. Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 6 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.

2. Includes cash and securities received / pledged as collateral, at fair value. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable. Refer to Note 4 for additional information regarding assets pledged as collateral.

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Fair Value Measurements

3 Months Ended

Mar. 31, 2014

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value Disclosures [Text Block]

Fair Value Measurements

We determine the fair value of our agency securities and debt of consolidated VIEs based upon fair value estimates obtained from multiple third party pricing services and dealers.  In determining fair value, third party pricing sources use various valuation approaches, including market and income approaches.  Factors used by third party sources in estimating the fair value of an instrument may include observable inputs such as coupons, primary and secondary mortgage rates, pricing information, credit data, volatility statistics, and other market data that are current as of the measurement date. The availability of observable inputs can vary by instrument and is affected by a wide variety of factors, including the type of instrument, whether the instrument is new and not yet established in the marketplace and other characteristics particular to the instrument.  Third party pricing sources may also use certain unobservable inputs, such as assumptions of future levels of prepayment, defaults and foreclosures, especially when estimating fair values for securities with lower levels of recent trading activity. We make inquiries of third party pricing sources to understand the significant inputs and assumptions they used to determine their prices. For further information regarding valuation of our derivative instruments, please refer to the discussion of derivative and other hedging instruments in Note 3.

We review the various third party fair value estimates and perform procedures to validate their reasonableness, including an analysis of the range of third party estimates for each position, comparison to recent trade activity for similar securities, and management review for consistency with market conditions observed as of the measurement date. While we do not adjust prices we obtain from third party pricing sources, we will exclude third party prices for securities from our determination of fair value if we determine (based on our validation procedures and our market knowledge and expertise) that the price is significantly different than observable market data would indicate and we cannot obtain an understanding from the third party source as to the significant inputs used to determine the price.

The validation procedures described above also influence our determination of the appropriate fair value measurement classification.  We utilize a three-level valuation hierarchy for disclosure of fair value measurement. The valuation hierarchy is based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date. A financial instrument's categorization within the hierarchy is based upon the lowest level of input that is significant to the fair value measurement. There were no transfers between hierarchy levels during the three months endedMarch 31, 2014. The three levels of hierarchy are defined as follows:

• Level 1 Inputs —Quoted prices (unadjusted) for identical unrestricted assets and liabilities in active markets that are accessible at the measurement date.

• Level 2 Inputs —Quoted prices for similar assets and liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.

• Level 3 Inputs —Instruments with primarily unobservable market data that cannot be corroborated.

The following table provides a summary of our assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2014 and December 31, 2013 (dollars in millions):

	Fair Value Hierarchy
	Level 1		Level 2		Level 3
March 31, 2014
Assets:
Agency securities	$	—	$	56,377	$	—
U.S. Treasury securities	196		—		—
Interest rate swaps	—		560		—
Payer swaptions	—		96		—
REIT equity securities	352		—
U.S. Treasury futures	6		—		—
TBA securities	—		24		—
Total	$	554	$	57,057	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	874	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	6,658		—		—
Interest rate swaps	—		368		—
TBA securities	—		49		—
Total	$	6,658	$	1,291	$	—
December 31, 2013
Assets:
Agency securities	$	—	$	65,941	$	—
U.S. Treasury securities	3,822		—		—
Interest rate swaps	—		880		—
Payer swaptions	—		258		—
REIT equity securities	237		—		—
U.S. Treasury futures	39		—		—
TBA securities	—		17		—
Total	$	4,098	$	67,096	$	—
Liabilities:
Debt of consolidated VIEs	$	—	$	910	$	—
Obligation to return U.S. Treasury securities borrowed under reverse repurchase agreements	1,848		—		—
Interest rate swaps	—		400		—
TBA securities	—		22		—
Total	$	1,848	$	1,332	$	—

We elected the option to account for debt of consolidated VIEs at fair value with changes in fair value reflected in earnings during the period in which they occur, because we believe this election more appropriately reflects our financial position as both the consolidated agency securities and consolidated debt are presented in a consistent manner, at fair value, on our consolidated balance sheets. We estimate the fair value of the consolidated debt based on a market approach using Level 2 inputs from third-party pricing services and dealer quotes.

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Subsequent Event (Notes)

3 Months Ended

Mar. 31, 2014

Subsequent Events [Abstract]

Subsequent Events [Text Block]

Subsequent Event

On May 8, 2014, we completed a public offering in which 7.0 million depository shares with a liquidation preference of $25.00 per depositary share were sold to the underwriters at a price of $24.2125 per depository share, for proceeds, net of offering expenses, of approximately $169 million. Each depositary share represents a 1/1,000th interest in a share of our 7.750% Series B Cumulative Redeemable Preferred Stock ("Series B Preferred Stock"). In connection with the offering, we granted the underwriters an option for 30 days to purchase up to an additional 1.05 million depositary shares to cover overallotments, if any. Our Series B Preferred Stock has no stated maturity, is not subject to any sinking fund or mandatory redemption and ranks on parity with our 8.000% Series A Cumulative Redeemable Preferred Stock. Under certain circumstances upon a change of control, our Series B Preferred Stock is convertible to shares of our common stock. Holders of depositary shares have no voting rights, except under limited conditions, and are entitled to receive cumulative cash dividends at a rate of 7.750% per annum of the $25.00 per depository share liquidation preference before holders of our common stock are entitled to receive any dividends. Dividends are payable quarterly in arrears on the 15th day of each January, April, July and October. Depositary shares are redeemable at $25.00 per depository share plus accumulated and unpaid dividends (whether or not declared) exclusively at our option commencing on May 8, 2019, or earlier under certain circumstances intended to preserve our qualification as a REIT for federal income tax purposes.

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Derivative and Other Hedging Instruments (Narrative) (Details) (USD $)	3 Months Ended		12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Mar. 31, 2014 Interest Rate Swap [Member]	Dec. 31, 2013 Interest Rate Swap [Member]	Mar. 31, 2014 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Mar. 31, 2013 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Dec. 31, 2013 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Dec. 31, 2012 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]	Mar. 31, 2014 Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member] Interest Rate Swaps [Member]	Dec. 31, 2013 TBA and Forward Settling Agency Securities [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member]	Mar. 31, 2014 TBA and Forward Settling Agency Securities [Member] Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] Purchases Of TBAs And Forward Settling Agency Securities [Member]
Derivative assets, at fair value	$ 686,000,000		$ 1,194,000,000								$ 17,000,000	$ 24,000,000
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	83,000,000	84,000,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	43,000,000	49,000,000				43,000,000	49,000,000
Net Periodic Interest Rate Costs on Swaps	126,000,000	133,000,000
Gain On Interest Only Securities Remeasured at Fair Value Through Earnings		(1,000,000)
Deferred Gain (Loss) on Discontinuation of Interest Rate Fair Value Hedge						(253,000,000)	(436,000,000)	296,000,000	485,000,000
Derivative, Average Remaining Maturity				4 years 10 months 15 days	4 years 8 months					1 year 11 months
Obligation to return securities borrowed under reverse repurchase agreements, at fair value	6,658,000,000		1,848,000,000
Proceeds from sales of treasury securities	6,700,000,000		1,900,000,000
Deferred gain loss discontinued interest rate swap expected to be reclassified from OCI to interest expense next twelve months						143,000,000
Interest rate swap agreement outstanding not designated as hedge	8,000,000,000			46,400,000,000	43,250,000,000
Credit Derivative, Maximum Exposure, Undiscounted	0.01
Variable Interest Entity, Measure of Activity, Expense	$ (3,000,000)	$ 13,000,000

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Investments, Owned, Federal Income Tax Note [Line Items]
Dividends, Common Stock, Cash	$ (229)	$ (496)

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Pledged Assets (Tables)

3 Months Ended

Mar. 31, 2014

Offsetting Liabilities [Line Items]

Schedule of Financial Instruments Owned and Pledged as Collateral [Table Text Block]

The following tables summarize our assets pledged as collateral under our repurchase agreements, debt of consolidated VIEs, derivative agreements and prime broker agreements by type, including securities pledged related to securities sold but not yet settled, as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	52,047	$	1,417	$	56	$	519	$	54,039
U.S. Treasury securities - fair value	125		—		71		—		196
Accrued interest on pledged securities	146		4		—		1		151
Restricted cash	1		—		224		44		269
Total	$	52,319	$	1,421	$	351	$	564	$	54,655

	December 31, 2013
Assets Pledged to Counterparties	Repurchase Agreements		Debt of Consolidated VIEs		Derivative Agreements		Prime Broker Agreements		Total
Agency MBS - fair value	$	62,708	$	1,459	$	28	$	91	$	64,286
U.S. Treasury securities - fair value	3,708		—		70		—		3,778
Accrued interest on pledged securities	189		5		1		—		195
Restricted cash	3		—		41		57		101
Total	$	66,608	$	1,464	$	140	$	148	$	68,360

The cash and cash equivalents and agency securities pledged as collateral under our derivative agreements are included in restricted cash and agency securities, at fair value, respectively, on our consolidated balance sheets.

Schedule of Securities and Cash Pledged as Collateral from Counterparties [Table Text Block]

As of March 31, 2014 and December 31, 2013, we also had assets pledged to us as collateral under our repurchase, reverse repurchase and derivative agreements summarized in the tables below (in millions).

	March 31, 2014
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	17	$	17
U.S. Treasury securities - fair value	—		6,658		56		6,714
Cash	16		—		167		183
Total	$	16	$	6,658	$	240	$	6,914

	December 31, 2013
Assets Pledged to AGNC	Repurchase Agreements		Reverse Repurchase Agreements		Derivative Agreements		Total
Agency MBS - fair value	$	—	$	—	$	82	$	82
U.S. Treasury securities - fair value	—		1,848		164		2,012
Cash	—		—		366		366
Total	$	—	$	1,848	$	612	$	2,460

Offsetting Liabilities [Table Text Block]

	Offsetting of Financial Liabilities and Derivative Liabilities
	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Liabilities Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Pledged 2
March 31, 2014
Interest rate swap agreements, at fair value 1	$	368	$	—	$	368	$	(288	)	$	(80	)	$	—
Repurchase agreements	49,729		—		49,729		(4,773		)	(44,806		)	150
Total derivative, other hedging instruments and other liabilities	$	50,097	$	—	$	50,097	$	(5,061	)	$	(44,886	)	$	150
December 31, 2013
Interest rate swap agreements, at fair value 1	$	400	$	—	$	400	$	(331	)	$	(69	)	$	—
Repurchase agreements	63,533		—		63,533		(1,881		)	(61,652		)	—
Total derivative, other hedging instruments and other liabilities	$	63,933	$	—	$	63,933	$	(2,212	)	$	(61,721	)	$	—

_______________________

1. Reported under derivative assets / liabilities, at fair value in the accompanying consolidated balance sheets. Refer to Note 6 for a reconciliation of derivative assets / liabilities, at fair value to their sub-components.

2. Includes cash and securities received / pledged as collateral, at fair value. Amounts presented are limited to collateral pledged sufficient to reduce the net amount to zero for individual counterparties, as applicable. Refer to Note 4 for additional information regarding assets pledged as collateral.

Offsetting Assets and Liabilities [Table Text Block]

The following tables present information about our assets and liabilities that are subject to such arrangements and can potentially be offset on our consolidated balance sheets as of March 31, 2014 and December 31, 2013 (in millions):

	Offsetting of Financial Assets and Derivative Assets
	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Consolidated Balance Sheets		Net Amounts of Assets Presented in the Consolidated Balance Sheets		Gross Amounts Not Offset  in the Consolidated Balance Sheets						Net Amount
							Financial Instruments			Collateral Received 2
March 31, 2014
Interest rate swap and swaption agreements, at fair value 1	$	656	$	—	$	656	$	(287	)	$	(240	)	$	129
Receivable under reverse repurchase agreements	6,685		—		6,685		(4,773		)	(1,912		)	—
Total derivative, other hedging instruments and other assets	$	7,341	$	—	$	7,341	$	(5,060	)	$	(2,152	)	$	129
December 31, 2013
Interest rate swap and swaption agreements, at fair value 1	$	1,138	$	—	$	1,138	$	(331	)	$	(610	)	$	197
Receivable under reverse repurchase agreements	1,881		—		1,881		(1,881		)	—			—
Total derivative, other hedging instruments and other assets	$	3,019	$	—	$	3,019	$	(2,212	)	$	(610	)	$	197

XML

Investment Securities (Summary of Investment in Agency Security) (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014		Dec. 31, 2013
Available-for-sale Securities Pledged as Collateral	$ 51,850,000,000		$ 62,205,000,000
Amortized cost	56,513,000,000		66,593,000,000
Total agency MBS, at fair value	56,377,000,000		65,941,000,000
Weighted average coupon	3.65%		3.58%	[1]
Weighted average yield	2.72%		2.70%	[2]
Weighted average yield for the year ended	2.54%	[2]	2.77%	[2]
Unamortized principal balance of interest-only strips	1,300,000,000		1,400,000,000
Unamortized principal balance of principal-only strips	265,000,000		271,000,000
Weighted average contractual interest rate of interest only strips	5.49%		5.50%
Average prepayment rate based on forward rate assumption	8.00%		7.00%
Restricted Cash and Cash Equivalents	269,000,000		101,000,000
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Total agency MBS, at fair value	43,993,000,000		52,693,000,000
Weighted average coupon	3.62%	[1]	3.53%	[1]
Weighted average yield	2.70%	[2]	2.66%	[2]
Weighted average yield for the year ended	2.53%	[2]	2.74%	[2]
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Total agency MBS, at fair value	12,165,000,000		13,013,000,000
Weighted average coupon	3.75%	[1]	3.78%	[1]
Weighted average yield	2.82%	[2]	2.87%	[2]
Weighted average yield for the year ended	2.61%	[2]	2.87%	[2]
Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Total agency MBS, at fair value	219,000,000		235,000,000
Weighted average coupon	3.54%	[1]	3.56%	[1]
Weighted average yield	1.66%	[2]	1.66%	[2]
Weighted average yield for the year ended	1.67%	[2]	1.79%	[2]
Available-for-sale Securities [Member]
Agency MBS, par	54,070,000,000		63,777,000,000
Unamortized discount	23,000,000		32,000,000
Unamortized premium	2,466,000,000		2,848,000,000
Amortized cost	56,513,000,000		66,593,000,000
Gross unrealized gains	335,000,000		260,000,000
Gross unrealized losses	903,000,000		1,349,000,000
Total available-for-sale agency MBS, at fair value	55,945,000,000		65,504,000,000
Available-for-sale Securities [Member] | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Agency MBS, par	42,131,000,000		50,914,000,000
Unamortized discount	17,000,000		25,000,000
Unamortized premium	1,887,000,000		2,210,000,000
Amortized cost	44,001,000,000		53,099,000,000
Gross unrealized gains	238,000,000		181,000,000
Gross unrealized losses	646,000,000		991,000,000
Total available-for-sale agency MBS, at fair value	43,593,000,000		52,289,000,000
Available-for-sale Securities [Member] | Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Agency MBS, par	11,730,000,000		12,640,000,000
Unamortized discount	6,000,000		7,000,000
Unamortized premium	573,000,000		631,000,000
Amortized cost	12,297,000,000		13,264,000,000
Gross unrealized gains	93,000,000		74,000,000
Gross unrealized losses	257,000,000		358,000,000
Total available-for-sale agency MBS, at fair value	12,133,000,000		12,980,000,000
Available-for-sale Securities [Member] | Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Agency MBS, par	209,000,000		223,000,000
Unamortized discount	0		0
Unamortized premium	6,000,000		7,000,000
Amortized cost	215,000,000		230,000,000
Gross unrealized gains	4,000,000		5,000,000
Gross unrealized losses	0		0
Total available-for-sale agency MBS, at fair value	219,000,000		235,000,000
Agency MBS remeasured at fair value through earnings [Member]
Interest-only and principal-only strips, amortized cost	415,000,000		432,000,000
Gross unrealized gains	24,000,000		16,000,000
Gross unrealized losses	(7,000,000)		(11,000,000)
Total agency MBS remeasured at fair value through earnings, at fair value	432,000,000		437,000,000
Agency MBS remeasured at fair value through earnings [Member] | Federal National Mortgage Association Certificates and Obligations (FNMA) [Member]
Interest-only and principal-only strips, amortized cost	386,000,000		400,000,000
Gross unrealized gains	20,000,000		13,000,000
Gross unrealized losses	(6,000,000)		(9,000,000)
Total agency MBS remeasured at fair value through earnings, at fair value	400,000,000		404,000,000
Agency MBS remeasured at fair value through earnings [Member] | Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member]
Interest-only and principal-only strips, amortized cost	29,000,000		32,000,000
Gross unrealized gains	4,000,000		3,000,000
Gross unrealized losses	(1,000,000)		(2,000,000)
Total agency MBS remeasured at fair value through earnings, at fair value	32,000,000		33,000,000
Agency MBS remeasured at fair value through earnings [Member] | Government National Mortgage Association Certificates and Obligations (GNMA) [Member]
Interest-only and principal-only strips, amortized cost	0		0
Gross unrealized gains	0		0
Gross unrealized losses	0		0
Total agency MBS remeasured at fair value through earnings, at fair value	0		0
Assets Pledged to Us [Member]
Available-for-sale Securities Pledged as Collateral	17,000,000		82,000,000
Restricted Cash and Cash Equivalents	183,000,000		366,000,000
Assets Pledged to Us [Member] | Derivative [Member]
Available-for-sale Securities Pledged as Collateral	17,000,000		82,000,000
Derivative [Member]
Available-for-sale Securities Pledged as Collateral	56,000,000		28,000,000
Restricted Cash and Cash Equivalents	224,000,000		41,000,000
Derivative [Member] | Assets Pledged to Us [Member]
Restricted Cash and Cash Equivalents	$ 167,000,000		$ 366,000,000

[1] The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.3 billion and the weighted average contractual interest we are entitled to receive was 5.49% of this amount as of March 31, 2014. The par value of our principal-only agency MBS strips was $265 million as of March 31, 2014.

[2] Incorporates a weighted average future constant prepayment rate assumption of 8% based on forward rates as of March 31, 2014

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Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Instruments, Owned, Mortgages, Mortgage-backed and Asset-backed Securities, at Fair Value	$ 54,960	$ 64,482
Financial Instruments, Owned, US Government and Agency Obligations, at Fair Value	196	3,822
Derivative Assets	686	1,194
Other Long-term Debt	874	910
Obligation to return securities borrowed under reverse repurchase agreements, at fair value	(6,658)	(1,848)
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	686	1,194
Marketable Securities, Equity Securities	352	237
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	417	422
Derivative Liabilities	417	422
Transfers between hierarchy levels	0
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Obligation to return securities borrowed under reverse repurchase agreements, at fair value		(1,848)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other Long-term Debt		910
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	554	4,098
Liabilities, Fair Value Disclosure	6,658	1,848
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure	57,057	67,096
Liabilities, Fair Value Disclosure	1,291	1,332
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | TBA and Forward Settling Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets		17
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Sale Of TBA And Forward Settling Agency Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Assets	49	22
Interest Rate Swaption [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	96	258
Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	368	400
Interest Rate Swap [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	560	880
Interest Rate Swap [Member] | Derivative liabilities, at fair value [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	368	400
Collateralized Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial Instruments, Owned, Mortgages, Mortgage-backed and Asset-backed Securities, at Fair Value	56,377	65,941
US Treasury Securities [Member] | Future [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	$ (6)	$ 39

XML

Derivative and Other Hedging Instruments (Summary of Long and Short Position of Derivative Instruments) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013	Dec. 31, 2013
Gain (loss) on REIT Equity Securities	$ 49
Variable Interest Entity, Measure of Activity, Expense	(3)		13
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(434)		(110)
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	686			1,194
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	(417)			(422)
Interest Rate Swap [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(380)		54
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	(368)			(400)
Interest Rate Swaption [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	(105)		(44)
Purchases Of TBAs And Forward Settling Agency Securities [Member]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value				17
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	(49)			(22)
TBA securities Fifteen Year and Thirty Year Securities [Member]
Derivative, Forward Settlement Value	14,127			2,276
Derivative Asset, Fair Value, Gross Asset	14,102			2,271
Fair Value of Derivative Instruments	(25)	[1]		(5)	[1]
TBA securities Fifteen Year and Thirty Year Securities [Member] | Long [Member]
Derivative, Forward Settlement Value	18,136			6,882
Derivative Asset, Fair Value, Gross Asset	18,095			6,864
Fair Value of Derivative Instruments	(41)			(18)
TBA securities Fifteen Year and Thirty Year Securities [Member] | Short [Member]
Derivative, Forward Settlement Value	(4,009)			(4,606)
Derivative Liability, Fair Value, Gross Liability	(3,993)			(4,593)
Fair Value of Derivative Instruments	16			13
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	560			880
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swaption [Member]
Derivative Instruments Not Designated as Hedging Instruments, Asset, at Fair Value	96			258
Fair Value, Inputs, Level 1 [Member] | US Treasury Securities [Member] | Future [Member]
Derivative Instruments Not Designated as Hedging Instruments, Liability, at Fair Value	6			(39)
Interest Only And Principal Only Strip [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	12
Other Derivatives [Member]
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ (2)

[1] 1.Notional amount represents the par value (or principal balance) of the underlying agency security.

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Consolidated Statement of Stockholders' Equity (USD $) In Millions, unless otherwise specified	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings (Accumulated Deficit) [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance, value at Dec. 31, 2012	$ 10,896	$ 167	$ 3	$ 9,460	$ (289)	$ 1,555
Balance, Common Stock, shares at Dec. 31, 2012			338.9
Balance, Preferred Stock, shares at Dec. 31, 2012		6.9
Net income	231				231
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	(837)					(837)
Unrealized (loss) gain on derivative instruments, net	49					49
Issuance of common stock, value	1,802		1	1,801
Dividends, Preferred Stock, Cash	(3)				(3)
Issuance of common stock, shares			57.6
Common dividends declared	496				496
Balance, value at Mar. 31, 2013	11,642	167	4	11,261	(557)	767
Balance, Common Stock, shares at Mar. 31, 2013			396.5
Balance, Preferred Stock, shares at Mar. 31, 2013		6.9
Balance, value at Dec. 31, 2013	8,697	167	4	10,406	(497)	(1,383)
Balance, Common Stock, shares at Dec. 31, 2013	356.2		356.2
Balance, Preferred Stock, shares at Dec. 31, 2013	6.9	6.9
Net income	(141)
Other comprehensive income (loss):
Unrealized gain (loss) on available-for-sale securities, net	521					521
Unrealized (loss) gain on derivative instruments, net	43					43
Stock Repurchased During Period, Shares	(3.4)		(3.4)
Dividends, Preferred Stock, Cash	(3)				(3)
Stock Repurchased During Period, Value	(74)		(74)
Common dividends declared	229				229
Balance, value at Mar. 31, 2014	$ 8,814	$ 167	$ 4	$ 10,332	$ (870)	$ (819)
Balance, Common Stock, shares at Mar. 31, 2014	352.8		352.8
Balance, Preferred Stock, shares at Mar. 31, 2014	6.9	6.9

XML

Investment Securities

3 Months Ended

Mar. 31, 2014

Available-for-sale Securities [Abstract]

Investment Securities

Investment Securities

As of March 31, 2014, we had agency MBS of $56.4 billion at fair value, with a total cost basis of $56.9 billion. The net unamortized premium balance on our agency MBS as of March 31, 2014 was $2.6 billion, including interest and principal-only strips. The following tables summarize our investments in agency MBS as of March 31, 2014 (dollars in millions):

	March 31, 2014
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	42,131		$	11,730		$	209		$	54,070
Unamortized discount	(17		)	(6		)	—			(23		)
Unamortized premium	1,887			573			6			2,466
Amortized cost	44,001			12,297			215			56,513
Gross unrealized gains	238			93			4			335
Gross unrealized losses	(646		)	(257		)	—			(903		)
Total available-for-sale agency MBS, at fair value	43,593			12,133			219			55,945
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	386			29			—			415
Gross unrealized gains	20			4			—			24
Gross unrealized losses	(6		)	(1		)	—			(7		)
Total agency MBS remeasured at fair value through earnings	400			32			—			432
Total agency MBS, at fair value	$	43,993		$	12,165		$	219		$	56,377
Weighted average coupon as of March 31, 2014 2	3.62		%	3.75		%	3.54		%	3.65		%
Weighted average yield as of March 31, 2014 3	2.70		%	2.82		%	1.66		%	2.72		%
Weighted average yield for the quarter ended March 31, 2014 3	2.53		%	2.61		%	1.67		%	2.54		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.3 billion and the weighted average contractual interest we are entitled to receive was 5.49% of this amount as of March 31, 2014. The par value of our principal-only agency MBS strips was $265 million as of March 31, 2014.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of March 31, 2014.

3. Incorporates a weighted average future constant prepayment rate assumption of 8% based on forward rates as of March 31, 2014.

	March 31, 2014
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	54,056	$	307	$	(902	)	$	53,461
Adjustable rate	1,176		19		—			1,195
CMO	1,281		9		(1		)	1,289
Interest-only and principal-only strips	415		24		(7		)	432
Total agency MBS	$	56,928	$	359	$	(910	)	$	56,377

As of December 31, 2013, we had agency MBS of $65.9 billion at fair value, with a total cost basis of $67.0 billion. The net unamortized premium balance on our agency MBS as of December 31, 2013 was $3.0 billion, including interest and principal-only strips. The following tables summarize our investments in agency MBS as of December 31, 2013 (dollars in millions):

	December 31, 2013
Agency MBS	Fannie Mae			Freddie Mac			Ginnie Mae			Total
Available-for-sale agency MBS:
Agency MBS, par	$	50,914		$	12,640		$	223		$	63,777
Unamortized discount	(25		)	(7		)	—			(32		)
Unamortized premium	2,210			631			7			2,848
Amortized cost	53,099			13,264			230			66,593
Gross unrealized gains	181			74			5			260
Gross unrealized losses	(991		)	(358		)	—			(1,349		)
Total available-for-sale agency MBS, at fair value	52,289			12,980			235			65,504
Agency MBS remeasured at fair value through earnings:
Interest-only and principal-only strips, amortized cost 1	400			32			—			432
Gross unrealized gains	13			3			—			16
Gross unrealized losses	(9		)	(2		)	—			(11		)
Total agency MBS remeasured at fair value through earnings	404			33			—			437
Total agency MBS, at fair value	$	52,693		$	13,013		$	235		$	65,941
Weighted average coupon as of December 31, 2013 2	3.53		%	3.78		%	3.56		%	3.58		%
Weighted average yield as of December 31, 2013 3	2.66		%	2.87		%	1.66		%	2.70		%
Weighted average yield for the year ended December 31, 2013 3	2.74		%	2.87		%	1.79		%	2.77		%

 ________________________

1. The underlying unamortized principal balance ("UPB" or "par value") of our interest-only agency MBS strips was $1.4 billion and the weighted average contractual interest we are entitled to receive was 5.50% of this amount as of December 31, 2013. The par value of our principal-only agency MBS strips was $271 million as of December 31, 2013.

2. The weighted average coupon includes the interest cash flows from our interest-only agency MBS strips taken together with the interest cash flows from our fixed rate, adjustable-rate and CMO agency MBS as a percentage of the par value of our agency MBS (excluding the UPB of our interest-only securities) as of December 31, 2013.

3. Incorporates a weighted average future constant prepayment rate assumption of 7% based on forward rates as of December 31, 2013.

	December 31, 2013
Agency MBS	Amortized Cost		Gross Unrealized Gain		Gross Unrealized Loss			Fair Value
Fixed rate	$	64,057	$	242	$	(1,338	)	$	62,961
Adjustable rate	1,223		15		(3		)	1,235
CMO	1,313		3		(8		)	1,308
Interest-only and principal-only strips	432		16		(11		)	437
Total agency MBS	$	67,025	$	276	$	(1,360	)	$	65,941

The actual maturities of our agency MBS are generally shorter than the stated contractual maturities. Actual maturities are affected by the contractual lives of the underlying mortgages, periodic contractual principal payments and principal prepayments. As of March 31, 2014 and December 31, 2013, our weighted average expected constant prepayment rate ("CPR") over the remaining life of our aggregate agency MBS portfolio was 8% and 7%, respectively. Our estimates differ materially for different types of securities and thus individual holdings have a wide range of projected CPRs. We estimate long-term prepayment assumptions for different securities using a third-party service and market data. The third-party service estimates prepayment speeds using models that incorporate the forward yield curve, current mortgage rates and mortgage rates of the outstanding loans, age and size of the outstanding loans, loan-to-value ratios, volatility and other factors. We review the prepayment speeds estimated by the third-party service and compare the results to market consensus prepayment speeds, if available. We also consider historical prepayment speeds and current market conditions to validate reasonableness. As market conditions may change rapidly, we may make adjustments for different securities based on our Manager's judgment. Various market participants could use materially different assumptions.

The following table summarizes our agency MBS classified as available-for-sale as of March 31, 2014 and December 31, 2013 according to their estimated weighted average life classification (dollars in millions):

	March 31, 2014						December 31, 2013
Estimated Weighted Average Life of Agency MBS Classified as Available-for-Sale 1	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield	Fair Value		Amortized Cost		Weighted Average Coupon	Weighted Average Yield
≤ 1 year	$	27	$	25	2.49%	1.81%	$	129	$	129	3.07%	2.53%
> 1 year and ≤ 3 years	191		186		4.86%	3.29%	498		491		4.08%	2.25%
> 3 years and ≤ 5 years	22,947		22,758		3.55%	2.53%	24,471		24,342		3.59%	2.57%
> 5 years and ≤10 years	32,534		33,284		3.51%	2.80%	38,522		39,635		3.39%	2.73%
> 10 years	246		260		3.61%	2.87%	1,884		1,996		3.66%	2.96%
Total	$	55,945	$	56,513	3.53%	2.70%	$	65,504	$	66,593	3.47%	2.68%

 _______________________

1. Excludes interest and principal-only strips.

The weighted average life of our interest-only strips was 6.2 and 6.3 years as of March 31, 2014 and December 31, 2013, respectively. The weighted average life of our principal-only strips was 8.3 and 8.6 years as of March 31, 2014 and December 31, 2013, respectively.

Our agency securities classified as available-for-sale are reported at fair value, with unrealized gains and losses excluded from earnings and reported in accumulated OCI. The following table summarizes changes in accumulated OCI, a separate component of stockholders' equity, for our available-for-sale securities for the three months endedMarch 31, 2014 and 2013 (in millions):

Agency Securities Classified as Available-for-Sale	Beginning Accumulated OCI Balance			Unrealized Gains and (Losses), Net		Reversal of  Unrealized (Gains) and Losses, Net on Realization	Ending Accumulated OCI Balance
Three months ended March 31, 2014	$	(1,087	)	502		19	$	(566	)
Three months ended March 31, 2013	$	2,040		(863	)	26	$	1,203

The following table presents the gross unrealized loss and fair values of our available-for-sale agency securities by length of time that such securities have been in a continuous unrealized loss position as of March 31, 2014 and December 31 and March 31, 2013 (in millions):

	Unrealized Loss Position For
	Less than 12 Months					12 Months or More					Total
Agency Securities Classified as Available-for-Sale	Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss			Estimated Fair Value		Unrealized Loss
March 31, 2014	$	22,112	$	(442	)	$	8,673	$	(461	)	$	30,785	$	(903	)
December 31, 2013	$	42,853	$	(1,248	)	$	1,586	$	(101	)	$	44,439	$	(1,349	)
March 31, 2013	$	25,963	$	(174	)	$	84	$	(2	)	$	26,047	$	(176	)

As of March 31, 2014 and 2013, a decision had not been made to sell any of these agency securities and we do not believe it is more likely than not we will be required to sell the agency securities before recovery of their amortized cost basis. The unrealized losses on these agency securities are not due to credit losses given the GSE guarantees, but are rather due to changes in interest rates and prepayment expectations. Accordingly, we did not recognize any OTTI charges on our investment securities for the three months endedMarch 31, 2014 and 2013. However, as we continue to actively manage our portfolio, we may recognize additional realized losses on our agency securities upon selecting specific securities to sell.

Gains and Losses

The following table is a summary of our net gain (loss) from the sale of agency securities classified as available-for-sale for the three months endedMarch 31, 2014 and 2013 (in millions): 

	Three Months Ended
Agency Securities Classified as Available-for-Sale	March 31, 2014			March 31, 2013
Agency MBS sold, at cost	$	(9,711	)	$	(20,328	)
Proceeds from agency MBS sold 1	9,692			20,302
Net loss on sale of agency MBS	$	(19	)	$	(26	)
Gross gain on sale of agency MBS	$	42		$	87
Gross loss on sale of agency MBS	(61		)	(113		)
Net loss on sale of agency MBS	$	(19	)	$	(26	)

  ________________________

1. Proceeds include cash received during the period, plus receivable for agency MBS sold during the period as of period end.

For the three months endedMarch 31, 2014 and 2013, we recognized a net unrealized gain of $12 million and a net unrealized loss of $1 million, respectively, for the change in value of investments in interest and principal-only strips in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. Over the same periods, we did not recognize any realized gains or losses on our interest or principal-only securities.

Securitizations and Variable Interest Entities

As of March 31, 2014 and December 31, 2013, we held investments in CMO trusts, which are VIEs. We have consolidated certain of these CMO trusts in our consolidated financial statements where we have determined we are the primary beneficiary of the trusts. All of our CMO securities are backed by fixed or adjustable-rate agency MBS. Fannie Mae or Freddie Mac guarantees the payment of interest and principal and acts as the trustee and administrator of their respective securitization trusts. Accordingly, we are not required to provide the beneficial interest holders of the CMO securities any financial or other support. Our maximum exposure to loss related to our involvement with CMO trusts is the fair value of the CMO securities and interest and principal-only securities held by us, less principal amounts guaranteed by Fannie Mae and Freddie Mac.

In connection with our consolidated CMO trusts, we recognized agency securities with a total fair value of $1.4 billion and $1.5 billion as of March 31, 2014 and December 31, 2013, respectively, and debt, at fair value, of $874 million and $910 million, respectively, in our accompanying consolidated balance sheets. As of March 31, 2014 and December 31, 2013, such agency securities had an aggregate unpaid principal balance of $1.3 billion and $1.4 billion, respectively, and such debt had an aggregate unpaid principal balance of $863 million and $900 million, respectively. We re-measure our consolidated debt at fair value through earnings in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income. For the three months endedMarch 31, 2014 and 2013, we recognized a net loss of $(3) million and a net gain of $13 million in earnings, respectively, associated with our consolidated debt. Our involvement with the consolidated trusts is limited to the agency securities transferred by us upon the formation of the trusts and the CMO securities subsequently held by us. There are no arrangements that could require us to provide financial support to the trusts.

As of March 31, 2014 and December 31, 2013, the fair value of our CMO securities and interest and principal-only securities was $1.7 billion, excluding the consolidated CMO trusts discussed above, or $2.3 billion including the net asset value of our consolidated CMO trusts. Our maximum exposure to loss related to our CMO securities and interest and principal-only securities, including our consolidated CMO trusts, was $265 million and $246 million as of March 31, 2014 and December 31, 2013, respectively.

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Investment Securities (Components Of Investment Securities) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Amortized cost	$ 56,928	$ 67,025
Gross unrealized gains	359	276
Gross unrealized losses	(910)	(1,360)
Available-for-sale Securities, Fair Value Disclosure	55,945	65,504
Available-for-sale Securities, Amortized Cost Basis	56,513	66,593
Total agency MBS, at fair value	56,377	65,941
Total Agency Securities	56,377	65,941
Fixed-Rate [Member]
Gross unrealized gains	307	242
Gross unrealized losses	(902)	(1,338)
Available-for-sale Securities, Fair Value Disclosure	53,461	62,961
Adjustable-Rate [Member]
Gross unrealized gains	19	15
Gross unrealized losses	0	(3)
Available-for-sale Securities, Fair Value Disclosure	1,195	1,235
CMO [Member]
Gross unrealized gains	9	3
Gross unrealized losses	(1)	(8)
Available-for-sale Securities, Fair Value Disclosure	1,289	1,308
Agency Securities [Member] | Fixed-Rate [Member]
Available-for-sale Securities, Amortized Cost Basis	54,056	64,057
Agency Securities [Member] | Adjustable-Rate [Member]
Available-for-sale Securities, Amortized Cost Basis	1,176	1,223
Agency Securities [Member] | CMO [Member]
Available-for-sale Securities, Amortized Cost Basis	1,281	1,313
Agency Securities [Member] | Interest Only And Principal Only Strip [Member]
Amortized cost	415	432
Gross unrealized gains	24	16
Gross unrealized losses	(7)	(11)
Fair Value	$ 432	$ 437

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Derivative and Other Hedging Instruments (Effect Of Interest Rate Swaps Designated As Hedges) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ 43	$ 49
Net Periodic Interest Rate Costs on Swaps	126	133
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion	83	84
Discontinuation of Election to Account for Interest Rate Swaps as Designated Cash Flow Hedges [Member]
Derivatives, Fair Value [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	$ 43	$ 49

XML

Derivative and Other Hedging Instruments (Tables)

3 Months Ended

Mar. 31, 2014

Derivative [Line Items]

Schedule of Outstanding Derivatives Not Designated as Hedging Instruments [Table Text Block]

The table below summarizes fair value information about our derivative assets and liabilities as of March 31, 2014 and December 31, 2013 (in millions):

Derivatives Instruments	Balance Sheet Location	March 31, 2014			December 31, 2013
Interest rate swaps	Derivative assets, at fair value	$	560		$	880
Swaptions	Derivative assets, at fair value	96			258
TBA securities	Derivative assets, at fair value	24			17
U.S. Treasury futures - short	Derivative assets, at fair value	6			39
		$	686		$	1,194
Interest rate swaps	Derivative liabilities, at fair value	$	(368	)	$	(400	)
TBA securities	Derivative liabilities, at fair value	(49		)	(22		)
		$	(417	)	$	(422	)

Schedule of Interest Rate Swaption Agreements Outstandin [Table Text Block]

The following tables summarize our interest rate swaption agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	111	$	44	5	$	4,650	2.98%	3M	6.4
> 1 to ≤ 2 years	60		34		18	2,450		3.55%	3M	4.5
> 2 to ≤ 3 years	23		15		28	900		3.99%	3M	5.4
Total Payer Swaptions	$	194	$	93	12	$	8,000	3.27%	3M	5.7

	March 31, 2014
	Option					Underlying Receiver Swap
	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Receive Rate	Average  Pay Rate (LIBOR)	Average Term (Years)
Receiver Swaption	$	3	$	3	12	$	1,000	2.26%	3M	10.0

	December 31, 2013
	Option					Underlying Payer Swap
Years to Expiration	Cost		Fair Value		Average Months to Expiration	Notional Amount		Average Fixed Pay Rate	Average Receive Rate (LIBOR)	Average Term (Years)
Payer Swaptions
≤ 1 year	$	193	$	117	4	$	9,400	2.87%	3M	7.8
> 1 to ≤ 2 years	105		92		19	3,600		3.40%	3M	5.6
> 2 to ≤ 3 years	35		45		30	1,150		3.81%	3M	5.8
> 3 to ≤ 5 years	2		4		52	100		4.80%	3M	7.0
Total Payer Swaptions	$	335	$	258	10	$	14,250	3.09%	3M	7.0

Summary of Long and Short Position of Derivative Instruments

The following table summarizes our contracts to purchase and sell TBA contracts as of March 31, 2014 and December 31, 2013 (in millions):

	March 31, 2014												December 31, 2013
Purchase and Sale Contracts for TBAs	Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4			Notional  Amount 1			Cost Basis 2			Market Value 3			Net Carrying Value 4
TBA securities:
Purchase contracts	$	17,699		$	18,136		$	18,095		$	(41	)	$	6,660		$	6,882		$	6,864		$	(18	)
Sale contracts	(3,790		)	(4,009		)	(3,993		)	16			(4,541		)	(4,606		)	(4,593		)	13
TBA securities, net 5	$	13,909		$	14,127		$	14,102		$	(25	)	$	2,119		$	2,276		$	2,271		$	(5	)

  ________________________

1. Notional amount represents the par value (or principal balance) of the underlying agency security.

2. Cost basis represents the forward price to be paid / (received) for the underlying agency security.

3. Market value represents the current market value of the TBA contract (or of the underlying agency security) as of period-end.

4. Net carrying value represents the difference between the market value and the cost basis of the TBA contract as of period-end and is reported in derivative assets / (liabilities), at fair value in our consolidated balance sheets.

5. Includes 15-year and 30-year TBA securities of varying coupons

Schedule Of Outstanding Not Designated As Hedging Instruments [Table Text Block]

	Three Months Ended March 31, 2013
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2012			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2013			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA and forward settling agency securities	$	12,477		43,267		(29,476	)	$	26,268		$	(102	)
Interest rate swaps	$	(46,850	)	(5,750	)	1,350		$	(51,250	)	54
Payer swaptions	$	(14,450	)	(11,150	)	2,700		$	(22,900	)	(44		)
U.S. Treasury securities - short position	$	(11,835	)	(9,935	)	9,210		$	(12,560	)	(3		)
U.S. Treasury futures contracts - short position	$	—		(800	)	—		$	(800	)	(15		)
											$	(110	)

  ______________________

1. Excludes a net loss of $1 million on interest and principal-only securities and a net gain of $13 million from debt of consolidated VIEs recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

The tables below summarize the effect of our derivative and other hedging instruments on our consolidated statements of comprehensive income for the three months endedMarch 31, 2014 and 2013 (in millions):

	Three Months Ended March 31, 2014
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2013			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2014			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA securities	$	2,119		24,376		(12,586	)	$	13,909		$	60
Interest rate swaps	$	(43,250	)	(5,900	)	2,750		$	(46,400	)	(380		)
Payer swaptions, net	$	(14,250	)	(1,000	)	7,250		$	(8,000	)	(105		)
Receiver swaption	$	—		1,000		—		$	1,000		—
U.S. Treasury securities - short position	$	(2,007	)	(7,241	)	2,462		$	(6,786	)	(45		)
U.S. Treasury securities - long position	$	3,927		1,900		(5,627	)	$	200		72
U.S. Treasury futures contracts - short position	$	(1,730	)	(730	)	1,730		$	(730	)	(36		)
TBA put option	$	—		(50	)	50		$	—		—
											$	(434	)

  ________________________________

1. Excludes a net gain of $49 million from investments in REIT equity securities, a net loss of $3 million from debt of consolidated VIEs, a net gain of$12 million on interest and principal-only securities and other miscellaneous net losses of $2 million recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

	Three Months Ended March 31, 2013
Derivative and Other Hedging Instruments	Notional Amount Long/(Short) December 31, 2012			Additions		Settlement, Termination, Expiration or Exercise		Notional Amount Long/(Short) March 31, 2013			Amount of Gain/(Loss) Recognized in Income on Derivatives 1
Net TBA and forward settling agency securities	$	12,477		43,267		(29,476	)	$	26,268		$	(102	)
Interest rate swaps	$	(46,850	)	(5,750	)	1,350		$	(51,250	)	54
Payer swaptions	$	(14,450	)	(11,150	)	2,700		$	(22,900	)	(44		)
U.S. Treasury securities - short position	$	(11,835	)	(9,935	)	9,210		$	(12,560	)	(3		)
U.S. Treasury futures contracts - short position	$	—		(800	)	—		$	(800	)	(15		)
											$	(110	)

  ______________________

1. Excludes a net loss of $1 million on interest and principal-only securities and a net gain of $13 million from debt of consolidated VIEs recognized in gain (loss) on derivative instruments and other securities, net in our consolidated statements of comprehensive income.

Not Designated as Hedging Instrument [Member]

Derivative [Line Items]

Schedule Of Interest Rate Swap Agreement By Remaining Maturity

The following tables summarize our interest rate swap agreements outstanding as of March 31, 2014 and December 31, 2013 (dollars in millions):

	March 31, 2014
Payer Interest Rate Swaps	Notional Amount 1		Average Fixed Pay Rate 2		Average Receive Rate 3		Net Estimated Fair Value			Average Maturity (Years) 4
≤ 3 years	$	16,650	1.55	%	0.18	%	$	(327	)	1.4
> 3 to ≤ 5 years	10,575		1.29	%	0.24	%	78			4.0
> 5 to ≤ 7 years	6,250		2.09	%	0.25	%	66			5.9
> 7 to ≤ 10 years	10,175		2.51	%	0.24	%	287			8.5
> 10 years	2,750		3.17	%	0.24	%	88			14.1
Total Payer Interest Rate Swaps	$	46,400	1.87	%	0.21	%	$	192		4.9

  ________________________

1. Notional amount includes forward starting swaps of $9.5 billion with an average forward start date of 1.9 years from March 31, 2014.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of March 31, 2014.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from March 31, 2014 through stated maturity date.

	December 31, 2013
Payer Interest Rate Swaps 1	Notional Amount		Average Fixed Pay Rate	Average Receive Rate	Net Estimated Fair Value			Average Maturity (Years)
≤ 3 years	$	16,750	1.57%	0.19%	$	(382	)	1.6
> 3 to ≤ 5 years	10,225		1.07%	0.24%	81			3.9
> 5 to ≤ 7 years	5,700		1.97%	0.26%	113			6.0
> 7 to ≤ 10 years	8,825		2.28%	0.24%	499			8.8
> 10 years	1,750		2.79%	0.24%	169			14.7
Total Payer Interest Rate Swaps	$	43,250	1.70%	0.22%	$	480		4.7

  ________________________

1. Notional amount includes forward starting swaps of $4.0 billion with an average forward start date of 1.9 years from December 31, 2013.

2. Average fixed pay rate includes forward starting swaps. Excluding forward starting swaps, the average fixed pay rate was 1.57% as of December 31, 2013.

3. Average receive rate excludes forward starting swaps.

4. Average maturity measured from December 31, 2013 through stated maturity date.