Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest income:
Trading securities	$ 874	$ 1,627	$ 1,336
Available-for-sale securities	98	175	230
Mortgage loans	106,316	117,374	115,029
Interest Income, Federal Funds Sold and Securities Purchased under Agreements to Resell or similar arrangements	146	843	742
Other	135	163	136
Total interest income	107,569	120,182	117,473
Interest expense:
Short-term debt	(182)	(501)	(468)
Long-term debt	(82,521)	(98,388)	(95,732)
Total interest expense	(82,703)	(98,889)	(96,200)
Net interest income	24,866	21,293	21,273
Benefit (provision) for credit losses	(678)	4,011	3,309
Net interest income after benefit (provision) for credit losses	24,188	25,304	24,582
Non-interest Income:
Investment gains, net	907	1,770	952
Fair value gains (losses), net	(2,501)	(2,214)	1,121
Fee and other income	462	566	555
Non-interest income (loss)	(1,132)	122	2,628
Administrative expenses:
Salaries and employee benefits	(1,554)	(1,486)	(1,451)
Professional services	(921)	(967)	(1,032)
Other administrative expenses	(593)	(570)	(576)
Total administrative expenses	(3,068)	(3,023)	(3,059)
Foreclosed property expense	(177)	(515)	(617)
Temporary Payroll Tax Cut Continuation Act of 2011 (“TCCA”) fees	(2,673)	(2,432)	(2,284)
Other expenses, net	(1,131)	(745)	(472)
Total expenses	(8,177)	(7,849)	(7,111)
Income before federal income taxes	14,879	17,577	20,099
Provision for federal income taxes	(3,074)	(3,417)	(4,140)
Total comprehensive income
Changes in unrealized gains on available-for-sale securities, net of reclassification adjustments and taxes	(23)	(179)	(344)
Other, net of taxes	8	(12)	(4)
Total other comprehensive loss	(15)	(191)	(348)
Total comprehensive income	11,790	13,969	15,611
Net income	11,805	14,160	15,959
Dividends distributed or amounts attributable to senior preferred stock	(11,790)	(13,969)	(12,613)
Net income attributable to common stockholders	$ 15	$ 191	$ 3,346
Earnings (loss) per share: Basic	$ 0.00	$ 0.03	$ 0.58
Earnings (loss) per share: Diluted	$ 0.00	$ 0.03	$ 0.57
Weighted Average Number of Shares Outstanding, Basic	5,867	5,762	5,762
Weighted-average common shares outstanding: Diluted	5,893	5,893	5,893
Credit Enhancement Expense	$ (1,361)	$ (1,134)	$ (679)
Change in expected credit enhancement recoveries	$ 233	$ 0	$ 0