XML 56 R34.htm IDEA: XBRL DOCUMENT v3.3.0.814
Accumulated Other Comprehensive Income (Loss) - Summary of Components of Accumulated Other Comprehensive Income (Loss) (Detail)
$ in Millions
9 Months Ended
Sep. 30, 2015
USD ($)
Statement Of Income And Comprehensive Income [Abstract]  
Accumulated other comprehensive income (loss), Beginning balance $ (45)
Other comprehensive loss (72)
Accumulated other comprehensive income (loss), Ending balance $ (117)