XML 64 R53.htm IDEA: XBRL DOCUMENT v3.21.2
Financial Instruments, Derivatives and Hedging Activities - FV (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Carrying value    
Fair value of assets and liabilities    
Long-term debt $ 2,100  
Fair value    
Fair value of assets and liabilities    
Long-term debt 2,400  
Fair Value, Measurements, Recurring    
Fair value of assets and liabilities    
Available for sale securities 13 $ 11
Derivative assets 95 69
Derivative liabilities 25 29
Long-term debt 2,364 1,751
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1    
Fair value of assets and liabilities    
Available for sale securities 13 11
Derivative assets 60 53
Derivative liabilities 7 3
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2    
Fair value of assets and liabilities    
Derivative assets 35 16
Derivative liabilities 18 26
Long-term debt $ 2,364 $ 1,751