Condensed Consolidated Statements of Changes in Equity (Unaudited) - USD ($) shares in Millions, $ in Millions	Total	Senior Preferred	Preferred	Common	Accumulated Deficit	Accumulated Other Comprehensive Income	Treasury Stock
Beginning balance (shares) at Dec. 31, 2023		1	556	1,158
Beginning balance at Dec. 31, 2023	$ 77,682	$ 120,836	$ 19,130	$ 687	$ (55,603)	$ 32	$ (7,400)
Comprehensive income:
Net income	8,804				8,804
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities, net of taxes	(1)					(1)
Reclassification adjustment for (gains) losses included in net income (net of taxes of $0)	1					1
Other, net of taxes	(3)					(3)
Total comprehensive income	8,801
Ending balance (shares) at Jun. 30, 2024		1	556	1,158
Ending balance at Jun. 30, 2024	86,483	$ 120,836	$ 19,130	$ 687	(46,799)	29	(7,400)
Beginning balance (shares) at Mar. 31, 2024		1	556	1,158
Beginning balance at Mar. 31, 2024	82,006	$ 120,836	$ 19,130	$ 687	(51,283)	36	(7,400)
Comprehensive income:
Net income	4,484				4,484
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities, net of taxes	(7)					(7)
Reclassification adjustment for (gains) losses included in net income (net of taxes of $0)	1					1
Other, net of taxes	(1)					(1)
Total comprehensive income	4,477
Ending balance (shares) at Jun. 30, 2024		1	556	1,158
Ending balance at Jun. 30, 2024	86,483	$ 120,836	$ 19,130	$ 687	(46,799)	29	(7,400)
Beginning balance (shares) at Dec. 31, 2024		1	556	1,158
Beginning balance at Dec. 31, 2024	94,657	$ 120,836	$ 19,130	$ 687	(38,625)	29	(7,400)
Comprehensive income:
Net income	6,978				6,978
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities, net of taxes	3					3
Reclassification adjustment for (gains) losses included in net income (net of taxes of $0)	1					1
Other, net of taxes	(3)					(3)
Total comprehensive income	6,979
Ending balance (shares) at Jun. 30, 2025		1	556	1,158
Ending balance at Jun. 30, 2025	101,636	$ 120,836	$ 19,130	$ 687	(31,647)	30	(7,400)
Beginning balance (shares) at Mar. 31, 2025		1	556	1,158
Beginning balance at Mar. 31, 2025	98,312	$ 120,836	$ 19,130	$ 687	(34,964)	23	(7,400)
Comprehensive income:
Net income	3,317				3,317
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities, net of taxes	9					9
Reclassification adjustment for (gains) losses included in net income (net of taxes of $0)	0					0
Other, net of taxes	(2)					(2)
Total comprehensive income	3,324
Ending balance (shares) at Jun. 30, 2025		1	556	1,158
Ending balance at Jun. 30, 2025	$ 101,636	$ 120,836	$ 19,130	$ 687	$ (31,647)	$ 30	$ (7,400)