Segment Information - Reconciliation of Reportable Segments Operating Revenues to Total Revenues Reported in the Consolidated Statements of Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Reportable segments’ operating revenues	$ 197,584	$ 175,204	$ 170,209
Net investment income	2,194	2,051	1,825
Net losses on financial instruments	(653)	(445)	(694)
Gain on sale of business	0	201	0
Total revenues	199,125	177,011	171,340
Reportable Segments
Segment Reporting Information [Line Items]
Reportable segments’ operating revenues	197,584	175,204	170,209
Net investment income	2,194	2,051	1,825
Net losses on financial instruments	(653)	(445)	(694)
Gain on sale of business	0	201	0
Total revenues	$ 199,125	$ 177,011	$ 171,340