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Employee Benefit Plans - Expected Payments (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Expected benefit payments  
2023 $ 97
2024 100
2025 102
2026 104
2027 106
2028-2031 532
Postretirement Medical Plan  
Expected benefit payments  
2023 3
2024 3
2025 3
2026 3
2027 3
2028-2031 $ 13