Fair Value Level 3 Reconciliation (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011		Jun. 30, 2012		Jun. 30, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	$ (274)		$ 141		$ (166)		$ 238
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(9)		(8)		0		(34)
Interest Income [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	79		135		145		270
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0		(1)		0		(1)
Fair Value Losses, Net [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	33		8		120		(16)
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(9)		(7)		0		(33)
Net Other-than-Temporary Impairments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(388)		(6)		(439)		(23)
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0		0		0		0
Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	2		4		8		7
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0		0		0		0
Trading securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2,756		3,981		4,238		4,576
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	41		(17)		45		(15)
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	124	[2]	0	[2]	124	[2]
Sales	0	[2]	0	[2]	(33)	[2]	(15)	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(105)	[3]	(160)	[3]	(263)	[3]	(344)	[3]
Transfers out of Level 3	(416)	[4]	0	[4]	(2,006)	[4]	(400)	[4]
Transfers Into Level 3	29	[4]	106	[4]	324	[4]	108	[4]
Ending Balance	2,305		4,034		2,305		4,034
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(7)	[5]	(15)	[5]	(15)	[5]	(6)	[5]
Trading securities [Member] | Fannie Mae [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	89		1,651		1,737		2,202
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(3)		1		2		(12)
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	124	[2]	0	[2]	124	[2]
Sales	0	[2]	0	[2]	(33)	[2]	(15)	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(4)	[3]	(97)	[3]	(108)	[3]	(229)	[3]
Transfers out of Level 3	0	[4]	0	[4]	(1,581)	[4]	(391)	[4]
Transfers Into Level 3	0	[4]	0	[4]	65	[4]	0	[4]
Ending Balance	82		1,679		82		1,679
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(2)	[5]	2	[5]	(2)	[5]	(6)	[5]
Trading securities [Member] | Ginnie Mae [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance					9
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)					0
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)					0	[1]
Purchases					0	[2]
Sales					0	[2]
Issues					0	[3]
Settlements					0	[3]
Transfers out of Level 3					(9)	[4]
Transfers Into Level 3					0	[4]
Ending Balance	0				0
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held					0	[5]
Trading securities [Member] | Freddie Mac [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2				0
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	0				0
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]			0	[1]
Purchases	0	[2]			0	[2]
Sales	0	[2]			0	[2]
Issues	0	[2]			0	[3]
Settlements	0	[3]			0	[3]
Transfers out of Level 3	0	[4]			0	[4]
Transfers Into Level 3	0	[4]			2	[4]
Ending Balance	2				2
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]			0	[5]
Trading securities [Member] | Alt-A private-label securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	569		20		345		20
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	56		1		69		1
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(50)	[3]	(1)	[3]	(67)	[3]	(1)	[3]
Transfers out of Level 3	(416)	[4]	0	[4]	(416)	[4]	0	[4]
Transfers Into Level 3	29	[4]	106	[4]	257	[4]	106	[4]
Ending Balance	188		126		188		126
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	7	[5]	2	[5]	13	[5]	1	[5]
Trading securities [Member] | Subprime private-label securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	1,305		1,547		1,280		1,581
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(37)		(41)		22		(30)
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(42)	[3]	(47)	[3]	(76)	[3]	(92)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	1,226		1,459		1,226		1,459
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(37)	[5]	(41)	[5]	22	[5]	(30)	[5]
Trading securities [Member] | Mortgage revenue bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	668		606		724		609
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	28		21		(26)		21
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(7)	[3]	(11)	[3]	(9)	[3]	(14)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	689		616		689		616
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	28	[5]	21	[5]	(26)	[5]	24	[5]
Trading securities [Member] | Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	123		155		143		152
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(3)		1		(22)		5
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(2)	[3]	(2)	[3]	(3)	[3]	(3)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	118		154		118		154
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	(3)	[5]	1	[5]	(22)	[5]	5	[5]
Trading securities [Member] | Asset-Backed Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance			2				12
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)			0				0
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)			0	[1]			0	[1]
Purchases			0	[2]			0	[2]
Sales			0	[2]			0	[2]
Issues			0	[3]			0	[3]
Settlements			(2)	[3]			(5)	[3]
Transfers out of Level 3			0	[4]			(9)	[4]
Transfers Into Level 3			0	[4]			2	[4]
Ending Balance			0				0
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held			0	[5]			0	[5]
Available-for-sale securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	27,853		31,762		29,492		31,934
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(306)		134		(280)		261
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	435	[1]	(252)	[1]	733	[1]	(110)	[1]
Purchases	5	[2]	473	[2]	6	[2]	889	[2]
Sales	(23)	[2]	(88)	[2]	(48)	[2]	(145)	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(1,189)	[3]	(938)	[3]	(2,236)	[3]	(2,119)	[3]
Transfers out of Level 3	(922)	[4]	(1,115)	[4]	(2,802)	[4]	(1,533)	[4]
Transfers Into Level 3	475	[4]	403	[4]	1,463	[4]	1,202	[4]
Ending Balance	26,328		30,379		26,328		30,379
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Fannie Mae [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	37		546		946		114
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	0		0		0		0
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	8	[1]	(8)	[1]	12	[1]
Purchases	5	[2]	473	[2]	6	[2]	889	[2]
Sales	(5)	[2]	(24)	[2]	(6)	[2]	(39)	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(3)	[3]	0	[3]	(19)	[3]	(2)	[3]
Transfers out of Level 3	0	[4]	(368)	[4]	(895)	[4]	(469)	[4]
Transfers Into Level 3	0	[4]	0	[4]	10	[4]	130	[4]
Ending Balance	34		635		34		635
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Freddie Mac [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	11		12		12		3
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	0		0		0		0
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	0	[3]	0	[3]	(1)	[3]	0	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	9	[4]
Ending Balance	11		12		11		12
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Alt-A private-label securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	7,136		7,236		7,256		7,049
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(85)		3		(102)		1
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	127	[1]	(26)	[1]	293	[1]	78	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(275)	[3]	(217)	[3]	(537)	[3]	(475)	[3]
Transfers out of Level 3	(922)	[4]	(747)	[4]	(1,907)	[4]	(1,064)	[4]
Transfers Into Level 3	475	[4]	403	[4]	1,453	[4]	1,063	[4]
Ending Balance	6,456		6,652		6,456		6,652
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Subprime private-label securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	7,595		9,660		7,586		9,932
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	(230)		130		(195)		260
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	203	[1]	(547)	[1]	506	[1]	(605)	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(338)	[3]	(334)	[3]	(667)	[3]	(678)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	7,230		8,909		7,230		8,909
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Mortgage revenue bonds [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	9,732		10,532		10,247		11,030
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	1		(1)		3		(3)
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	117	[1]	273	[1]	(20)	[1]	294	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	(18)	[2]	(64)	[2]	(42)	[2]	(106)	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(479)	[3]	(276)	[3]	(835)	[3]	(751)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	9,353		10,464		9,353		10,464
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Available-for-sale securities [Member] | Other [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	3,342		3,776		3,445		3,806
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	8		2		14		3
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	(12)	[1]	40	[1]	(38)	[1]	111	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(94)	[3]	(111)	[3]	(177)	[3]	(213)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	3,244		3,707		3,244		3,707
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	0	[5]	0	[5]	0	[5]	0	[5]
Mortgage Loans [Member] | Consolidated Trusts [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	2,271		2,221		2,319		2,207
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	47		19		120		30
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	142	[2]	42	[2]	387	[2]	57	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	(110)	[3]	(71)	[3]	(169)	[3]	(150)	[3]
Transfers out of Level 3	(26)	[4]	(31)	[4]	(344)	[4]	(37)	[4]
Transfers Into Level 3	7	[4]	185	[4]	18	[4]	258	[4]
Ending Balance	2,331		2,365		2,331		2,365
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	43	[5]	19	[5]	(10)	[5]	30	[5]
Net derivatives [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	44		118		65		104
Total Gains or (Losses) (Realized/Unrealized) Included in Net Income (Loss)	8		(9)		15		5
Total Gains or (Losses) (Realized/Unrealized) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	(3)	[3]	(1)	[3]	(6)	[3]	(1)	[3]
Settlements	25	[3]	(29)	[3]	0	[3]	(29)	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	74		79		74		79
Net Unrealized Gains (Losses) Included in Net Loss Related to Assets Still Held	19	[5]	(26)	[5]	33	[5]	(16)	[5]
Long-term debt [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	(1,349)		(1,090)		(1,171)		(1,048)
Total Gain (Loss) (Realized/Unrealized) Included in Net Loss	(64)		14		(66)		(43)
Total Gains or (Lossed) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	(218)	[3]	(40)	[3]	(485)	[3]	(40)	[3]
Settlements	50	[3]	39	[3]	78	[3]	81	[3]
Transfers out of Level 3	0	[4]	55	[4]	110	[4]	77	[4]
Transfers Into Level 3	(150)	[4]	(26)	[4]	(197)	[4]	(75)	[4]
Ending Balance	(1,731)		(1,048)		(1,731)		(1,048)
Net Unrealized Gain (Loss) Included in Net Loss Related to Liabilities Still Held	(64)	[5]	14	[5]	(8)	[5]	(42)	[5]
Long-term debt [Member] | Fannie Mae [Member] | Senior Floating [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	(399)		(423)		(406)		(421)
Total Gain (Loss) (Realized/Unrealized) Included in Net Loss	(13)		8		(6)		(14)
Total Gains or (Lossed) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	0	[3]	0	[3]	0	[3]	0	[3]
Settlements	0	[3]	13	[3]	0	[3]	33	[3]
Transfers out of Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Transfers Into Level 3	0	[4]	0	[4]	0	[4]	0	[4]
Ending Balance	(412)		(402)		(412)		(402)
Net Unrealized Gain (Loss) Included in Net Loss Related to Liabilities Still Held	(13)	[5]	8	[5]	(6)	[5]	(14)	[5]
Long-term debt [Member] | Consolidated Trusts [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	(950)		(667)		(765)		(627)
Total Gain (Loss) (Realized/Unrealized) Included in Net Loss	(51)		6		(60)		(29)
Total Gains or (Lossed) Included in Other Comprehensive Income (Loss)	0	[1]	0	[1]	0	[1]	0	[1]
Purchases	0	[2]	0	[2]	0	[2]	0	[2]
Sales	0	[2]	0	[2]	0	[2]	0	[2]
Issues	(218)	[3]	(40)	[3]	(485)	[3]	(40)	[3]
Settlements	50	[3]	26	[3]	78	[3]	48	[3]
Transfers out of Level 3	0	[4]	55	[4]	110	[4]	77	[4]
Transfers Into Level 3	(150)	[4]	(26)	[4]	(197)	[4]	(75)	[4]
Ending Balance	(1,319)		(646)		(1,319)		(646)
Net Unrealized Gain (Loss) Included in Net Loss Related to Liabilities Still Held	$ (51)	[5]	$ 6	[5]	$ (2)	[5]	$ (28)	[5]

[1] Gains (losses) included in other comprehensive income (loss) are included in “Changes in unrealized losses on available-for-sale securities, net of reclassification adjustments and taxes” in the condensed consolidated statement of operations and comprehensive income (loss).

[2] Purchases and sales include activity related to the consolidation and deconsolidation of assets of securitization trusts.

[3] Issues and settlements include activity related to the consolidation and deconsolidation of liabilities of securitization trusts.

[4] Transfers out of Level 3 consisted primarily of Fannie Mae MBS and private-label mortgage-related securities backed by Alt-A loans. Prices for these securities were obtained from multiple third-party vendors supported by market observable inputs. Transfers into Level 3 consisted primarily of private-label mortgage-related securities backed by Alt-A loans. Prices for these securities are based on inputs from a single source or inputs that were not readily observable.

[5] Amount represents temporary changes in fair value. Amortization, accretion and other-than-temporary impairments are not considered unrealized and are not included in this amount.