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Goodwill, Other Intangibles, and Property and Equipment - Estimated Annual Pre-Tax Amortization for Intangible Assets (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Goodwill Other Intangibles And Property And Equipment [Abstract]  
2022 $ 2,651
2023 2,293
2024 1,961
2025 1,792
2026 $ 1,543