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Employee Benefit Plans - PAC - Contributions and Benefit Payments (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Other Postretirement  
Defined Benefit Plan Disclosure [Line Items]  
2023 $ 53
2024 53
2025 53
2026 52
2027 52
2028-2032 235
Other Postretirement | PAC  
Defined Benefit Plan Disclosure [Line Items]  
Projected benefit payments 0
2023 23
2024 22
2025 21
2026 20
2027 20
2028-2032 87
U.S. | Pension  
Defined Benefit Plan Disclosure [Line Items]  
Projected benefit payments 13
2023 192
2024 184
2025 180
2026 177
2027 172
2028-2032 782
U.S. | Pension | PAC  
Defined Benefit Plan Disclosure [Line Items]  
Projected benefit payments 4
2023 76
2024 73
2025 70
2026 67
2027 64
2028-2032 277
U.S. | Other Postretirement  
Defined Benefit Plan Disclosure [Line Items]  
Projected benefit payments $ 7