Income Taxes - Income Taxes Paid (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Paid, by Individual Jurisdiction [Line Items]
U.S. federal	$ (1,099)	$ 3,465	$ 2,797
U.S. state and local
Total U.S. state and local	1,732	2,875	2,743
Non-U.S.
Total Non-U.S.	4,676	5,375	4,368
Total cash income taxes paid, net	5,309	11,715	9,908
New York State
U.S. state and local
Total U.S. state and local	538		590
California
U.S. state and local
Total U.S. state and local	465	810	721
New York City
U.S. state and local
Total U.S. state and local	270
All other
U.S. state and local
Total U.S. state and local	459	2,065	1,432
United Kingdom
Non-U.S.
Total Non-U.S.	987	1,254	1,254
India
Non-U.S.
Total Non-U.S.	582	599
France
Non-U.S.
Total Non-U.S.	459
Luxembourg
Non-U.S.
Total Non-U.S.	272
Germany
Non-U.S.
Total Non-U.S.		647
All other
Non-U.S.
Total Non-U.S.	$ 2,376	$ 2,875	$ 3,114