XML 83 R67.htm IDEA: XBRL DOCUMENT v3.10.0.1
Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Accumulated other comprehensive income (loss), Beginning balance $ (105)    
Other comprehensive loss (38) $ 37 $ (8)
Accumulated other comprehensive income (loss), Ending balance (143) (105)  
Accumulated Other Comprehensive Income (Loss) [Member]      
Accumulated other comprehensive income (loss), Beginning balance (105)    
Other comprehensive loss (38) 37 $ (8)
Accumulated other comprehensive income (loss), Ending balance $ (143) $ (105)