v3.20.1
Debt - Schedule of Interest Expense (Detail) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Debt Disclosure [Abstract]    
Contractual interest coupon $ 19 $ 10
Amortization of debt issuance costs 2 2
Amortization of debt discounts 44 28
Total $ 65 $ 40