v3.10.0.1
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Statement of Comprehensive Income [Abstract]        
Unrealized gains (losses) on designated cash flow and net investment hedges, tax (expense) benefit $ 1 $ 0 $ 4 $ 0
Unrealized gains (losses) on investments, tax (expense) benefit 0 0 0 (1)
Reclassification of realized net losses (gains) to net income, tax expense (benefit) 0 2 0 1
Pension adjustment, tax (expense) benefit $ 1 $ (5) $ 1 $ (1)