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Accumulated Other Comprehensive Loss - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period $ 33,070 $ 34,595 $ 2,293
Total other comprehensive loss (397) (172) (121)
Balance at end of period 31,672 33,070 34,595
Total      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (387) (180) (67)
Other comprehensive income (loss) before reclassifications (366) (222)  
Amounts reclassified from accumulated other comprehensive loss 8 15  
Total other comprehensive loss (358) (207) (113)
Balance at end of period (745) (387) (180)
Cash Flow Hedges      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (121) (141)  
Other comprehensive income (loss) before reclassifications 6 5  
Amounts reclassified from accumulated other comprehensive loss 8 15  
Total other comprehensive loss 14 20  
Balance at end of period (107) (121) (141)
Foreign Currency Translation      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (254) (33)  
Other comprehensive income (loss) before reclassifications (422) (221)  
Amounts reclassified from accumulated other comprehensive loss 0 0  
Total other comprehensive loss (422) (221)  
Balance at end of period (676) (254) (33)
Pension Plans      
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]      
Balance at beginning of period (12) (6)  
Other comprehensive income (loss) before reclassifications 50 (6)  
Amounts reclassified from accumulated other comprehensive loss 0 0  
Total other comprehensive loss 50 (6)  
Balance at end of period $ 38 $ (12) $ (6)