Derivative Positions (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivative Asset, Fair Value, Gross Asset	$ 6,125		$ 8,656
Derivative liability positions, fair value	5,673		7,514
Derivative Asset, Collateral, Obligation to Return Cash, Offset	(4,284)		(5,843)
Derivative Liability, Collateral, Right to Reclaim Cash, Offset	(4,284)		(5,843)
Derivative Asset, Fair Value of Collateral	(457)		(730)
Derivative Liability, Fair Value of Collateral	(864)		(1,259)
Derivative Assets	1,384	[1]	2,083	[1]
Derivative Liabilities	525	[2]	412	[2]
Derivative Financial Instruments, Assets
Derivative, Notional Amount	120,818		135,993
Derivative Asset, Fair Value, Gross Asset	6,125		8,656
Derivative Assets	1,384		2,083	[3]
Derivative Financial Instruments, Assets | Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Contract [Member] | Floating Rate Loans | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	471	[4]	771	[4]
Derivative Asset, Notional Amount	17,250	[4]	17,350	[4]
Derivative Financial Instruments, Assets | Designated as Hedging Instrument | Fair Value Hedging | Interest Rate Contract [Member] | Fixed Rate Debt | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	52	[5]	61	[5]
Derivative Asset, Notional Amount	2,000	[5]	1,000	[5]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member]
Derivative Asset, Fair Value, Gross Asset	5,602		7,824
Derivative Asset, Notional Amount	101,568		117,643
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fixed Rate Debt | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	0		0
Derivative Asset, Notional Amount	0		0
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Mortgage Servicing Rights [Member] | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	27	[6]	150	[6]
Derivative Asset, Notional Amount	1,425	[6]	6,185	[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Loans | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	30	[6],[7]	6	[6],[8]
Derivative Asset, Notional Amount	4,561	[6],[7]	2,333	[6],[8]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Trading Activity | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	2,917	[6],[9]	6,044	[10],[6]
Derivative Asset, Notional Amount	70,615	[6],[9]	81,930	[10],[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract | Trading Activity | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	61	[6]	66	[6]
Derivative Asset, Notional Amount	2,449	[6]	2,451	[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract | Foreign-Denominated Debt and Commercial Loans | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset			0
Derivative Asset, Notional Amount			0
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Credit Risk Contract [Member] | Loans | Other Assets [Member]
Derivative Asset, Fair Value, Gross Asset	0		0
Derivative Asset, Notional Amount	0		0
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Credit Risk Contract [Member] | Trading Activity | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	37	[11],[6]	55	[12],[6]
Derivative Asset, Notional Amount	1,568	[11],[6]	1,958	[12],[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Equity Contract [Member] | Trading Activity | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	2,504	[6],[9]	1,342	[10],[6]
Derivative Asset, Notional Amount	19,595	[6],[9]	15,748	[10],[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Other Contract | Loans | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	12	[13],[6]	132	[14],[6]
Derivative Asset, Notional Amount	1,114	[13],[6]	6,783	[14],[6]
Derivative Financial Instruments, Assets | Not Designated as Hedging Instrument [Member] | Other Contract | Trading Activity | Trading Account Assets [Member]
Derivative Asset, Fair Value, Gross Asset	14	[6]	29	[6]
Derivative Asset, Notional Amount	241	[6]	255	[6]
Derivative Financial Instruments, Liabilities [Member]
Derivative, Notional Amount	104,799		133,283
Derivative liability positions, fair value	5,673		7,514
Derivative Liabilities	525		412	[3]
Derivative Financial Instruments, Liabilities [Member] | Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Contract [Member] | Floating Rate Loans | Trading Liabilities [Member]
Derivative Liability, Notional Amount	0		0
Derivative liability positions, fair value	0		0	[4]
Derivative Financial Instruments, Liabilities [Member] | Designated as Hedging Instrument | Fair Value Hedging | Interest Rate Contract [Member] | Fixed Rate Debt | Trading Liabilities [Member]
Derivative Liability, Notional Amount	900	[5]	0
Derivative liability positions, fair value	24	[5]	0
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member]
Derivative Liability, Notional Amount	103,899		133,283
Derivative liability positions, fair value	5,649		7,514
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Fixed Rate Debt | Trading Liabilities [Member]
Derivative Liability, Notional Amount	60	[6]	60	[6]
Derivative liability positions, fair value	7	[6]	10	[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Mortgage Servicing Rights [Member] | Trading Liabilities [Member]
Derivative Liability, Notional Amount	6,898	[6]	12,643	[6]
Derivative liability positions, fair value	79	[6]	33	[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Loans | Trading Liabilities [Member]
Derivative Liability, Notional Amount	1,317	[6],[7]	7,076	[6],[8]
Derivative liability positions, fair value	5	[6],[7]	15	[6],[8]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Interest Rate Contract [Member] | Trading Activity | Trading Liabilities [Member]
Derivative Liability, Notional Amount	65,299	[6],[9]	86,037	[10],[6]
Derivative liability positions, fair value	2,742	[6],[9]	5,777	[10],[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract | Trading Activity | Trading Liabilities [Member]
Derivative Liability, Notional Amount	2,624	[6]	2,326	[6]
Derivative liability positions, fair value	57	[6]	63	[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Foreign Exchange Contract | Foreign-Denominated Debt and Commercial Loans | Trading Liabilities [Member]
Derivative Liability, Notional Amount			34	[6]
Derivative liability positions, fair value			0
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Credit Risk Contract [Member] | Loans | Other Liabilities [Member]
Derivative Liability, Notional Amount	427	[6]	445	[6]
Derivative liability positions, fair value	5	[6]	8	[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Credit Risk Contract [Member] | Trading Activity | Trading Liabilities [Member]
Derivative Liability, Notional Amount	1,579	[11],[6]	2,081	[12],[6]
Derivative liability positions, fair value	34	[11],[6]	49	[12],[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Equity Contract [Member] | Trading Activity | Trading Liabilities [Member]
Derivative Liability, Notional Amount	24,712	[6],[9]	22,184	[10],[6]
Derivative liability positions, fair value	2,702	[6],[9]	1,529	[10],[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Other Contract | Loans | Trading Liabilities [Member]
Derivative Liability, Notional Amount	755	[13],[6]	142	[14],[6]
Derivative liability positions, fair value	4	[13],[6]	1	[14],[6]
Derivative Financial Instruments, Liabilities [Member] | Not Designated as Hedging Instrument [Member] | Other Contract | Trading Activity | Trading Liabilities [Member]
Derivative Liability, Notional Amount	228	[6]	255	[6]
Derivative liability positions, fair value	$ 14	[6]	$ 29	[6]

[1] At December 31, 2013, $1.4 billion, net of $457 million offsetting cash collateral, is recognized in trading assets and derivatives within the Company's Consolidated Balance Sheets. At December 31, 2012, $2.1 billion, net of $730 million offsetting cash collateral, is recognized in trading assets and derivatives within the Company's Consolidated Balance Sheets.

[2] At December 31, 2013, $525 million, net of $864 million offsetting cash collateral, is recognized in trading liabilities and derivatives within the Company's Consolidated Balance Sheets. At December 31, 2012, $412 million, net of $1.3 billion offsetting cash collateral, is recognized in trading liabilities and derivatives within the Company's Consolidated Balance Sheets.

[3] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOmQ0ODkxMWExMzFjZTRjMGM4Njc0NDdkYmU1ZWFhZGJkfFRleHRTZWxlY3Rpb246ODJEMzMxRDg4QjhGN0Q5RjY0RTU0RDdGRUVCRDM3RkEM}

[4] See “Cash Flow Hedges” in this Note for further discussion.

[5] See “Fair Value Hedges” in this Note for further discussion.

[6] See “Economic Hedging and Trading Activities” in this Note for further discussion.

[7] Amount includes $885 million of notional amounts related to interest rate futures. These futures contracts settle in cash daily, one day in arrears. The derivative asset or liability associated with the one day lag is included in the fair value column of this table.

[8] Amount includes $1.7 billion of notional amounts related to interest rate futures. These futures contracts settle in cash daily, one day in arrears. The derivative liability associated with the one day lag is included in the fair value column of this table.

[9] Amounts include $15.2 billion and $0.2 billion of notional related to interest rate futures and equity futures, respectively. These futures contracts settle in cash daily, one day in arrears. The derivative assets/liabilities associated with the one day lag are included in the fair value column of this table.

[10] Amounts include $16.2 billion and $0.8 billion of notional related to interest rate futures and equity futures, respectively. These futures contracts settle in cash daily, one day in arrears. The derivative asset associated with the one day lag is included in the fair value column of this table.

[11] Asset and liability amounts include $4 million and $5 million, respectively, of notional from purchased and written credit risk participation agreements, respectively, whose notional is calculated as the notional of the derivative participated adjusted by the relevant RWA conversion factor.

[12] Asset and liability amounts each include $3 million of notional from purchased and written interest rate swap risk participation agreements, respectively, whose notional is calculated as the notional of the interest rate swap participated adjusted by the relevant RWA conversion factor.

[13] Includes a notional amount that is based on the number of Visa Class B shares, 3.2 million, the conversion ratio from Class B shares to Class A shares, and the Class A share price at the derivative inception date of May 28, 2009. This derivative was established upon the sale of Class B shares in the second quarter of 2009 as discussed in Note 17, “Guarantees.” The fair value of the derivative liability, which relates to a notional amount of $55 million, is immaterial and is recognized in other liabilities in the Consolidated Balance Sheets.

[14] Includes a notional amount that is based on the number of Visa Class B shares, 3.2 million, the conversion ratio from Class B shares to Class A shares, and the Class A share price at the derivative inception date of May 28, 2009. This derivative was established upon the sale of Class B shares in the second quarter of 2009 as discussed in Note 17, “Guarantees.” The fair value of the derivative liability, which relates to a notional amount of $134 million, is immaterial and is recognized in other liabilities in the Consolidated Balance Sheets.