v3.10.0.1
Debt - Schedule of Short-Term Debt (Detail) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Debt Disclosure [Abstract]    
Short-term bank borrowings $ 0 $ 0
Current portion of long-term debt [1] 1,107 751
Total $ 1,107 $ 751
[1] Net of adjustment for debt issuance costs.