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Pension Plans and Other Post Employment Benefit Plans Estimated Future Benefit Payments (Details)
$ in Millions
Dec. 31, 2022
USD ($)
Pension Plan  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
2020 $ 1,305
2021 1,267
2022 1,233
2023 1,201
2024 1,165
2025-2029 5,233
Total 11,404
Other Post Employment Benefits Plan  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
2020 132
2021 123
2022 116
2023 109
2024 102
2025-2029 355
Total $ 937