Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Net cash provided by operating activities
Net cash provided by operating activities	$ 960	$ 11,518
Cash flows provided by investing activities:
Purchases of trading securities held for investment	0	(5,855)
Proceeds from maturities and paydowns of trading securities held for investment	1,046	2,036
Proceeds from sales of trading securities held for investment	1,241	11,118
Proceeds from maturities and paydowns of available-for-sale securities	4,505	8,265
Proceeds from sales of available-for-sale securities	2,461	14,312
Purchases of loans held for investment	(93,029)	(161,737)
Net change in restricted cash	477	36,394
Advances to lenders	(71,268)	(114,584)
Proceeds from disposition of acquired property and preforeclosure sales	19,533	29,688
Net change in federal funds sold and securities purchased under agreements to resell or similar arrangements	9,525	(7,800)
Other, net	(178)	619
Net cash provided by investing activities	175,865	383,294
Cash flows used in financing activities:
Payments of cash dividends on senior preferred stock to Treasury	(16,594)	(73,835)
Other, net	25	0
Net cash used in financing activities	(179,724)	(385,145)
Net (decrease) increase in cash and cash equivalents	(2,899)	9,667
Cash and cash equivalents at beginning of period	19,228	21,117
Cash and cash equivalents at end of period	16,329	30,784
Cash paid during the period for:
Interest	81,947	82,086
Income Taxes	2,475	1,876
Fannie Mae [Member]
Cash flows provided by investing activities:
Proceeds from repayments and sales of loans acquired as held for investment of Fannie Mae	19,765	38,427
Cash flows used in financing activities:
Proceeds from issuance of debt	284,266	326,036
Payments to redeem debt	(339,528)	(377,514)
Consolidated Trusts [Member]
Cash flows provided by investing activities:
Proceeds from repayments and sales of loans acquired as held for investment of consolidated trusts	281,787	532,411
Cash flows used in financing activities:
Proceeds from issuance of debt	188,719	339,687
Payments to redeem debt	$ (296,612)	$ (599,519)