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Revenue Recognition Contract Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Contract With Customer, Liability [Line Items]    
Contract with Customer, Liability - Beginning of Period $ 1,043 $ 1,126
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress 29 29
Other Significant Noncash Transaction, Value of Consideration Received 2 2
Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination 5 0
Contract with Customer, Liability, Revenue Recognized (69) (64)
Contract with Customer, Liability - End of Period $ 1,010 $ 1,093