v3.20.2
Fair Value of Financial Instruments - Schedule of Interest Rate Swaps Outstanding (Detail) - Interest Rate Swaps [Member] - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]          
Aggregate Notional Amount $ 839   $ 839   $ 821
Gross Asset at Fair Value         1
Gross Liability at Fair Value 69   69   $ 27
Gross losses $ 3 $ 19 $ 42 $ 38