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Pension And Other Postretirement Employee Benefit Plans (Benefit Payments That Reflect Expected Future Service) (Details)
$ in Millions
Dec. 31, 2021
USD ($)
Defined Benefit Plan Disclosure [Line Items]  
2022 $ 263
2023 267
2024 263
2025 262
2026 264
2027 - 2031 1,137
Pension benefit plans | U.S. Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2022 193
2023 193
2024 191
2025 190
2026 189
2027 - 2031 751
Pension benefit plans | Non-U.S. Pension Benefits  
Defined Benefit Plan Disclosure [Line Items]  
2022 55
2023 61
2024 60
2025 60
2026 64
2027 - 2031 341
Other postretirement benefits  
Defined Benefit Plan Disclosure [Line Items]  
2022 15
2023 13
2024 12
2025 12
2026 11
2027 - 2031 $ 45