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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Statement of Comprehensive Income [Abstract]    
Net income $ 2,437 $ 1,816
Other comprehensive (loss) income:    
Net unrealized debt securities gains (losses), net of tax 1 19
Foreign currency translation adjustments, net of hedges and tax (87) 28
Net unrealized pension and other postretirement benefits, net of tax 3 57
Other comprehensive (loss) income (83) 104
Comprehensive income $ 2,354 $ 1,920