Annual report pursuant to Section 13 and 15(d)

Goodwill and Intangible Assets - Intangible Assets Subject to Amortization (Details)

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Goodwill and Intangible Assets - Intangible Assets Subject to Amortization (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Intangible Assets    
Gross carrying amount $ 8,786 $ 8,668
Accumulated amortization (3,408) (2,728)
Net carrying amount 5,378 5,940
FIA Agreement    
Intangible Assets    
Gross carrying amount 3,630 3,630
Accumulated amortization (742) (543)
Net carrying amount $ 2,888 3,087
Weighted average remaining life (in years) 35 years  
Customer relationships    
Intangible Assets    
Gross carrying amount $ 3,053 3,086
Accumulated amortization (1,389) (1,123)
Net carrying amount $ 1,664 1,963
Customer relationships | Minimum    
Intangible Assets    
Weighted average remaining life (in years) 10 years  
Customer relationships | Maximum    
Intangible Assets    
Weighted average remaining life (in years) 15 years  
Licensing agreements    
Intangible Assets    
Gross carrying amount $ 355 316
Accumulated amortization (221) (185)
Net carrying amount $ 134 131
Weighted average remaining life (in years) 15 years  
Other    
Intangible Assets    
Gross carrying amount $ 1,748 1,636
Accumulated amortization (1,056) (877)
Net carrying amount $ 692 $ 759