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Goodwill & Other Intangible Assets - Expected Future Amortization Expense (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Value of in-force contracts  
Finite-Lived Intangible Assets [Line Items]  
2022 $ 9
2023 0
2024 0
2025 0
2026 0
Other Intangible Assets [Member]  
Finite-Lived Intangible Assets [Line Items]  
2022 70
2023 70
2024 70
2025 70
2026 $ 70