v3.20.1
Derivative Instruments - Cash Flow Derivatives (Details) - USD ($)
$ in Millions
Mar. 31, 2020
Dec. 31, 2019
Derivatives, Fair Value [Line Items]    
Derivative Asset [1] $ 489 $ 402
Derivative Liability [1] 378 288
Interest rate hedging instruments    
Derivatives, Fair Value [Line Items]    
Derivative Asset 0 12
Derivative Liability 150 31
Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Derivative Asset 0 12
Derivative Liability 123 29
Designated as Hedging Instrument | Interest rate hedging instruments    
Derivatives, Fair Value [Line Items]    
Derivative Asset 0 12
Derivative Liability 123 29
Not Designated as Hedging Instrument    
Derivatives, Fair Value [Line Items]    
Derivative Asset 489 390
Derivative Liability 255 259
Not Designated as Hedging Instrument | Interest rate hedging instruments    
Derivatives, Fair Value [Line Items]    
Derivative Asset 0 0
Derivative Liability 27 2
Not Designated as Hedging Instrument | Energy Related Derivative    
Derivatives, Fair Value [Line Items]    
Derivative Asset 489 390
Derivative Liability $ 228 $ 257
[1] At March 31, 2020 and December 31, 2019, we had $191 million and $191 million, respectively, of collateral under master netting arrangements that were not offset against our derivative instruments on the Consolidated Condensed Balance Sheets primarily related to initial margin requirements.