XML 67 R52.htm IDEA: XBRL DOCUMENT v3.10.0.1
Employee Postretirement Benefits (Summarized Financial Information about Postretirement plans, Excluding Defined Contribution Retirement Plans) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Defined Benefit Pension Plans      
Benefit obligation at beginning of year $ 4,296 $ 4,126  
Service cost 36 41 $ 42
Interest cost 128 129 148
Actuarial (gain) loss(a) [1] (256) 20  
Currency and other (96) 221  
Benefit payments from plans (198) (218)  
Direct benefit payments (8) (8)  
Settlements and curtailments (215) (15)  
Benefit obligation at end of year 3,687 4,296 4,126
Fair value of plan assets at beginning of year 3,897 3,534  
Actual return on plan assets (132) 333  
Employer contributions 166 53  
Currency and other (116) 204  
Benefit payments (198) (218)  
Settlements (219) (9)  
Fair value of plan assets at end of year 3,398 3,897 3,534
Funded Status (289) (399)  
Other Postretirement Benefit Plans      
Benefit obligation at beginning of year 765 758  
Service cost 11 12 11
Interest cost 28 32 33
Actuarial (gain) loss(a) [1] (79) 16  
Currency and other (5) (3)  
Benefit payments from plans 0 0  
Direct benefit payments (48) (50)  
Settlements and curtailments 1 0  
Benefit obligation at end of year 673 765 758
Fair value of plan assets at beginning of year 0 0  
Actual return on plan assets 0 0  
Employer contributions 0 0  
Currency and other 0 0  
Benefit payments 0 0  
Settlements 0 0  
Fair value of plan assets at end of year 0 0 $ 0
Funded Status $ (673) $ (765)  
[1] The actuarial gains in 2018 were primarily due to discount rate increases