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Supplemental Financial Statement Information - Schedule of Payments to Customers (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disaggregation of Revenue [Line Items]      
Total payments made to customers $ 627 $ 517 $ 432
Bad debt expense 49 60 49
Reductions to revenue      
Disaggregation of Revenue [Line Items]      
Total payments made to customers 455 360 284
Charges to operations and support      
Disaggregation of Revenue [Line Items]      
Total payments made to customers 118 96 88
Charges to sales and marketing expense      
Disaggregation of Revenue [Line Items]      
Total payments made to customers $ 54 $ 61 $ 60