Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 2,584	$ 2,437
Other comprehensive income (loss):
Net unrealized debt securities gains (losses), net of tax	3	1
Foreign currency translation adjustments, net of hedges and tax	17	(87)
Net unrealized pension and other postretirement benefits, net of tax	9	3
Other comprehensive income (loss)	29	(83)
Comprehensive income	$ 2,613	$ 2,354