XML 53 R39.htm IDEA: XBRL DOCUMENT v3.20.2
Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Balance at Beginning of Year $ 15,184 $ 15,362
Net Income (Loss) 6 (1)
Reclassification Adjustments 10 7
Balance at End of Period 14,861 15,311
Accum. Other Comprehensive Loss    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Balance at Beginning of Year (491) (563)
Balance at End of Period (475) (557)
Pensions and other postretirment liabilities    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Balance at Beginning of Year (421) (497)
Net Income (Loss) 0 0
Reclassification Adjustments 10 7
Balance at End of Period (411) (490)
Other comprehensive loss of equity investees    
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]    
Balance at Beginning of Year (70) (66)
Net Income (Loss) 6 (1)
Reclassification Adjustments 0 0
Balance at End of Period $ (64) $ (67)