Offsetting Assets and Liabilities (Details 2) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Derivatives
Gross Amounts of Recognized Liabilities	$ 4,370		$ 4,198
Securities loaned
Gross Amounts of Recognized Liabilities	136		145
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(15)	[1]	(66)	[1]
Cash Collateral
Securities Collateral	(117)		(77)
Net Amount	4		2
Repurchase agreements
Gross Amounts of Recognized Liabilities	50		501
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	0	[1]	0	[1]
Cash Collateral	0		0
Securities Collateral	(50)		(501)
Net Amount	0		0
Total
Gross Amounts of Recognized Liabilities	4,994		3,956
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(3,262)	[1]	(2,772)	[1]
Cash Collateral	(2)		(67)
Securities Collateral	(1,665)		(1,109)
Net Amount	65		8
OTC
Derivatives
Gross Amounts of Recognized Liabilities	4,786		3,310
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(3,227)	[1]	(2,706)	[1]
Cash Collateral			(67)
Securities Collateral	(1,498)		(531)
Net Amount	61		6
Over the Counter Cleared Swaps
Derivatives
Gross Amounts of Recognized Liabilities	22
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(20)	[1]
Cash Collateral	(2)
Securities Collateral
Net Amount
Total Over the Counter Derivatives
Derivatives
Gross Amounts of Recognized Liabilities	4,808
Gross Amounts Not Offset in the Consolidated Balance Sheets
Financial Instruments	(3,247)	[1]
Cash Collateral	(2)
Securities Collateral	(1,498)
Net Amount	$ 61

[1] Represents the amount of liabilities that could be offset by assets with the same counterparty under master netting or similar arrangements that management elects not to offset on the Consolidated Balance Sheets.