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Schedule II - Valuation And Qualifying Accounts (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Allowance for Doubtful Accounts      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 86 $ 84 $ 60
Expense (Benefit) 86 91 107
Other Adjustments 1 (3) (2)
Deductions (86) (86) (81)
Balance at End of Period 87 86 84
Tax Valuation Allowance      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 103 169 207
Expense (Benefit) (2) (63) (35)
Other Adjustments 5 (3) (3)
Deductions 0 0 0
Balance at End of Period $ 106 $ 103 $ 169