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Financial Instruments - Non-U.S. Dollar Debt Designated as Net Investment Hedges (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Euro notes    
Derivative Instruments, Gain (Loss) [Line Items]    
After-tax gains/(losses) related to hedges of net investments in international operations $ (33) $ 74
British pound sterling notes    
Derivative Instruments, Gain (Loss) [Line Items]    
After-tax gains/(losses) related to hedges of net investments in international operations 0 8
Swiss franc notes    
Derivative Instruments, Gain (Loss) [Line Items]    
After-tax gains/(losses) related to hedges of net investments in international operations (5) 6
Canadian notes    
Derivative Instruments, Gain (Loss) [Line Items]    
After-tax gains/(losses) related to hedges of net investments in international operations $ (1) $ (4)