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Intangible Assets - Expected Amortization Expense for Each of the Fiscal Years (Details)
$ in Millions
Dec. 31, 2020
USD ($)
Expected amortization expense for each of the fiscal years  
2021 $ 153
2022 154
2023 141
2024 75
2025 69
Thereafter 103
Total definite life intangible assets, net $ 695