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Contract Assets and Liabilities (Schedule of Contract Assets and Contract Liabilities) (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Revenue from Contract with Customer [Abstract]    
Contract assets $ 14,570 $ 12,139
Contract liabilities (18,616) (17,183)
Net contract liabilities $ (4,046) $ (5,044)