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Employee Benefit Plans Cash Contributions (Details)
$ in Millions
Dec. 31, 2018
USD ($)
Postemployment Benefits [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 30
Other Postretirement Benefits Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year 2
Foreign Plan [Member]  
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 28