Accounting for Derivative Instruments and Hedging Activities - Impact of Statement of Operations (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
Interest Rate Contract | Interest Expense | |||
Derivative Instruments, Gain (Loss) [Line Items] | |||
Unrealized (loss) gain on derivatives, net of tax | $ (65) | $ 15 | $ 6 |
Energy Related Derivative | |||
Derivative Instruments, Gain (Loss) [Line Items] | |||
Derivative, loss on derivative | $ 9 |