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Revenues and Trade Accounts Receivable - Capitalized Costs to Fulfill Contract with Customer (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Capitalized Contract Cost, Net [Roll Forward]    
Beginning balance $ 209 $ 245
Costs capitalized 10 14
Amortization expense (20) (22)
Impairment charge (7) (2)
Ending balance $ 192 $ 235