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 (Loss)	Treasury Stock
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	10,837				10,837
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities (net of taxes)	(5)					(5)
Reclassification adjustment for (gains) losses included in net income (net of taxes)	1					1
Other (net of taxes)	(5)					(5)
Total comprehensive income	10,828
Ending balance (shares) at Sep. 30, 2025		1	556	1,158
Ending balance at Sep. 30, 2025	105,485	$ 120,836	$ 19,130	$ 687	(27,788)	20	(7,400)
Beginning balance (shares) at Jun. 30, 2025		1	556	1,158
Beginning balance at Jun. 30, 2025	101,636	$ 120,836	$ 19,130	$ 687	(31,647)	30	(7,400)
Comprehensive income:
Net income	3,859				3,859
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities (net of taxes)	(8)					(8)
Other (net of taxes)	(2)					(2)
Total comprehensive income	3,849
Ending balance (shares) at Sep. 30, 2025		1	556	1,158
Ending balance at Sep. 30, 2025	105,485	$ 120,836	$ 19,130	$ 687	(27,788)	20	(7,400)
Beginning balance (shares) at Dec. 31, 2025		1	556	1,158
Beginning balance at Dec. 31, 2025	109,012	$ 120,836	$ 19,130	$ 687	(24,261)	20	(7,400)
Comprehensive income:
Net income	11,879				11,879
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities (net of taxes)	(1,250)					(1,250)
Other (net of taxes)	(4)					(4)
Total comprehensive income	10,625
Ending balance (shares) at Sep. 30, 2026		1	556	1,158
Ending balance at Sep. 30, 2026	119,637	$ 120,836	$ 19,130	$ 687	(12,382)	(1,234)	(7,400)
Beginning balance (shares) at Jun. 30, 2026		1	556	1,158
Beginning balance at Jun. 30, 2026	116,497	$ 120,836	$ 19,130	$ 687	(16,559)	(197)	(7,400)
Comprehensive income:
Net income	4,177				4,177
Other comprehensive income, net of tax effect:
Changes in net unrealized gains (losses) on available-for-sale securities (net of taxes)	(1,036)					(1,036)
Other (net of taxes)	(1)					(1)
Total comprehensive income	3,140
Ending balance (shares) at Sep. 30, 2026		1	556	1,158
Ending balance at Sep. 30, 2026	$ 119,637	$ 120,836	$ 19,130	$ 687	$ (12,382)	$ (1,234)	$ (7,400)