Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets (Amortizable Intangibles) (Details)

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Goodwill and Other Intangible Assets (Amortizable Intangibles) (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]      
Goodwill, Period Increase (Decrease) $ 0    
Indefinite-lived Intangible Assets, Period Increase (Decrease) 0    
Finite-Lived Intangible Assets, Gross 7,478   $ 7,442
Accumulated amortization (1,463)   (1,311)
Finite-Lived Intangible Assets, Net, Total 6,015   6,131
Amortization of Intangible Assets 154 $ 116  
Remainder of 2018 503    
2019 621    
2020 563    
2021 486    
2022 451    
FIA Agreement      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 3,630   3,630
Accumulated amortization (204)   (157)
Finite-Lived Intangible Assets, Net, Total 3,426   3,473
Customer Relationships      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 2,684   2,684
Accumulated amortization (575)   (501)
Finite-Lived Intangible Assets, Net, Total 2,109   2,183
Licensing Agreements      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 330   330
Accumulated amortization (146)   (138)
Finite-Lived Intangible Assets, Net, Total 184   192
Other Intangible Assets      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 834   798
Accumulated amortization (538)   (515)
Finite-Lived Intangible Assets, Net, Total $ 296   $ 283