XML 119 R73.htm IDEA: XBRL DOCUMENT v3.20.4
Fair Value Measurements - Summary of Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($)
$ in Millions
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives $ 74 $ 11
Derivatives 173 74
Recurring basis    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 31 63
Derivatives 74 11
Total assets at fair value 105 74
Derivatives 173 74
Total liabilities at fair value 173 74
Recurring basis | Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 31 63
Derivatives 37 1
Total assets at fair value 68 64
Derivatives 58 26
Total liabilities at fair value 58 26
Recurring basis | Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 0 0
Derivatives 37 10
Total assets at fair value 37 10
Derivatives 115 48
Total liabilities at fair value 115 48
Recurring basis | Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Marketable securities 0 0
Derivatives 0 0
Total assets at fair value 0 0
Derivatives 0 0
Total liabilities at fair value $ 0 $ 0