Annual report pursuant to Section 13 and 15(d)

Other Intangible Assets, Net (Other Intangible Assets) (Details)

v3.8.0.1
Other Intangible Assets, Net (Other Intangible Assets) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Gross cost      
Purchased and internally developed software $ 710 $ 646  
Affiliate and customer relationships 2,419 2,397  
Debt origination fees 8 8  
Trademarks (indefinite life) 2,428 2,428  
Other intangible assets (excluding goodwill), gross 5,565 5,479  
Accumulated amortization      
Purchased and internally developed software (548) (466)  
Affiliate and customer relationships (2,409) (2,274)  
Debt origination fees (3) (1)  
Other intangible assets (excluding goodwill), accumulated amortization (2,960) (2,741)  
Other intangible assets, net      
Purchased and internally developed software 162 180  
Affiliate and customer relationships 10 123  
Debt origination fees 5 7  
Other intangible assets (excluding goodwill), net 2,605 2,738  
Reduction of intangible assets due to disposal of assets 20 52  
Amortization of other intangible assets $ 207 $ 270 $ 265
Purchased and internally developed software      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Remaining weighted average years 2 years 1 month    
Affiliate and customer relationships      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Remaining weighted average years 2 years 9 months    
Debt origination fees      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Remaining weighted average years 3 years 5 months    
Other Intangible Assets      
Finite-lived and Indefinite-lived Intangible Assets by Major Class [Line Items]      
Remaining weighted average years 2 years 2 months