XML 100 R80.htm IDEA: XBRL DOCUMENT v3.6.0.2
Intangible Assets and Goodwill (Estimated Future Annual Amortization Expense for Intangible Assets) (Details) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Intangible Assets and Goodwill [Abstract]    
2017 $ 37  
2018 30  
2019 27  
2020 22  
2021 15  
Thereafter 13  
Net Carrying Value $ 144 $ 181