Netting Arrangements Netting Arrangements Table (Details) (USD $)	Dec. 31, 2013		Dec. 31, 2012
Assets
Derivative assets, gross amount	$ 8,756,000,000		$ 16,009,000,000
Derivative asset, gross amount offset	(8,422,000,000)	[1]	(15,791,000,000)	[1]
Derivative assets, net amount presented in the consolidated balance sheets	334,000,000	[2]	218,000,000	[2]
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	(83,000,000)	[3]	(92,000,000)	[3]
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	(20,000,000)	[4]	(50,000,000)	[4]
Derivative assets, net amount	231,000,000		76,000,000
Securities purchased under agreements to resell, or similar arrangements, gross amount	50,565,000,000	[5]	45,750,000,000	[5]
Securities purchased under agreements to resell or similar arrangements, gross amount offset	0	[1],[5]	0	[1],[5]
Securities purchased under agreements to resell or similar arrangements, net amount presented in the consolidated balance sheets	50,565,000,000	[5]	45,750,000,000	[5]
Securities purchased under agreements to resell, under master netting arrangement, amounts not offset in the consolidated balance sheets, financial instruments	0	[3],[5]	0	[3],[5]
Securities purchased under agreements to resell or similar arrangements, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	(50,565,000,000)	[4],[5]	(45,750,000,000)	[4],[5]
Securities purchased under agreements to resell or similar arrangements, net amount	0	[5]	0	[5]
Total assets, gross amount	59,321,000,000		61,759,000,000
Total assets, gross amount offset	(8,422,000,000)	[1]	(15,791,000,000)	[1]
Total assets, net amount presented in the consolidated balance sheets	50,899,000,000		45,968,000,000
Total assets, under the master netting arrangements, not offset in the consolidated balance sheets, financial instruments	(83,000,000)	[3]	(92,000,000)	[3]
Total assets, under master netting arrangements, not offset in the consolidated balance sheets, collateral	(50,585,000,000)	[4]	(45,800,000,000)	[4]
Total assets, net amount	231,000,000		76,000,000
Derivative assets not subject to an enforceable master netting arrangement or similar agreement	1,700,000,000		217,000,000
Liabilities:
Total liabilities, gross amount	(9,717,000,000)		(22,501,000,000)
Total liabilities, gross amount offset	9,370,000,000	[1]	22,046,000,000	[1]
Total liabilities, net amount presented in the consolidated balance sheets	(347,000,000)	[2]	(455,000,000)	[2]
Total liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	83,000,000	[3]	92,000,000	[3]
Total liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	0	[4]	0	[4]
Total liabilities, net amount	(264,000,000)		(363,000,000)
Derivative liabilities not subject to an enforceable master netting arrangements or similar agreement	1,100,000,000		250,000,000
OTC risk management derivatives [Member]
Assets
Derivative assets, gross amount	8,491,000,000		15,853,000,000
Derivative asset, gross amount offset	(8,422,000,000)	[1],[6]	(15,791,000,000)	[1],[6]
Derivative assets, net amount presented in the consolidated balance sheets	69,000,000		62,000,000
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	0	[3]	0	[3]
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	(20,000,000)	[4]	(48,000,000)	[4]
Derivative assets, net amount	49,000,000		14,000,000
Liabilities:
Derivative liabilities, gross amount	(9,503,000,000)		(22,204,000,000)
Derivative liabilities, gross amount offset	9,370,000,000	[1],[6]	22,046,000,000	[1],[6]
Derivative liabilities, net amount presented in the consolidated balance sheets	(133,000,000)		(158,000,000)
Derivative liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	0	[3]	0	[3]
Derivative liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	0	[4]	0	[4]
Derivative liabilities, net amount	(133,000,000)		(158,000,000)
Mortgage commitment derivatives [Member]
Assets
Derivative assets, gross amount	265,000,000		156,000,000
Derivative asset, gross amount offset	0	[1]	0	[1]
Derivative assets, net amount presented in the consolidated balance sheets	265,000,000		156,000,000
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	(83,000,000)	[3]	(92,000,000)	[3]
Derivative assets, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	0	[4]	(2,000,000)	[4]
Derivative assets, net amount	182,000,000		62,000,000
Liabilities:
Derivative liabilities, gross amount	(214,000,000)		(297,000,000)
Derivative liabilities, gross amount offset	0	[1]	0	[1]
Derivative liabilities, net amount presented in the consolidated balance sheets	(214,000,000)		(297,000,000)
Derivative liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, financial instruments	83,000,000	[3]	92,000,000	[3]
Derivative liabilities, under master netting arrangements, amounts not offset in the consolidated balance sheets, collateral	0	[4]	0	[4]
Derivative liabilities, net amount	(131,000,000)		(205,000,000)
Cash and cash equivalents [Member]
Assets
Securities purchased under agreements to resell or similar arrangements	$ 11,600,000,000		$ 13,300,000,000

[1] Represents the effect of the right to offset under legally enforceable master netting agreements to settle with the same counterparty on a net basis, including cash collateral posted and received and accrued interest.

[2] Excludes derivative assets of $1.7 billion and $217 million and derivative liabilities of $1.1 billion and $250 million recognized in our consolidated balance sheets as of December 31, 2013 and 2012, respectively, that are not subject to an enforceable master netting arrangement or similar agreement.

[3] Mortgage commitment derivative amounts reflect where we have recognized both an asset and a liability with the same counterparty under an enforceable master netting arrangement but we have not elected to offset the related amounts in our consolidated balance sheets.

[4] Represents collateral posted or received that has neither been recognized nor offset in our consolidated balance sheets. Does not include collateral held in excess of our exposure.

[5] Includes $11.6 billion and $13.3 billion of securities purchased under agreements to resell or similar arrangements classified as “cash and cash equivalents” in our consolidated balance sheets as of December 31, 2013 and 2012, respectively.

[6] The netting adjustment represents the effect of the legal right to offset under legally enforceable master netting agreements to settle with the same counterparty on a net basis, including cash collateral posted and received. Cash collateral posted was $2.0 billion and $6.3 billion as of December 31, 2013 and 2012, respectively. Since the agreements related to clearing contracts through derivatives clearing organizations do not provide us with a legal right of offset, no netting adjustments have been made for these contracts. Cash collateral received was $1.0 billion as of December 31, 2013. No cash collateral was received as of December 31, 2012.