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Pension Expected Benefit Payments (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Pension Plans, Defined Benefit [Member] | United States  
Defined Benefit Plan, Expected Future Benefit Payments [Abstract]  
2020  $ 90
2021  90
2022  87
2023  86
2024  85
2025-2029 390
Pension Plans, Defined Benefit [Member] | Foreign Plan [Member]  
Defined Benefit Plan, Expected Future Benefit Payments [Abstract]  
2020  34
2021  37
2022  38
2023  41
2024  45
2025-2029 250
Postretirement Benefits [Member]  
Defined Benefit Plan, Expected Future Benefit Payments [Abstract]  
2020  2
2021  2
2022  2
2023  2
2024  2
2025-2029 $ 8