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Goodwill and Intangible Assets - Estimated Future Amortization (Details)
$ in Millions
Sep. 30, 2021
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Remainder of 2021 $ 112
2022 363
2023 199
2024 148
2025 130
Thereafter 313
Total $ 1,265