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Cash Flow Information - Schedule of Cash Flow Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Cash Payments    
Interest $ 486 $ 464
Income taxes 3,942 107
Net Sales (Purchases) of Investments    
Short-term investments purchased (1,253) (5,439)
Short-term investments sold 613 6,842
Long-term investments purchased (510) (149)
Long-term investments sold 46 48
Net (purchase) sale of investments $ (1,104) $ 1,302