XML 108 R94.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes Tax Cuts and Jobs Act (Narrative) (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2017
USD ($)
Transition Tax [Domain]  
Tax Cuts and Jobs Act [Line Items]  
Other Tax Expense (Benefit) $ 108
Tax Cuts and Jobs Act [Domain]  
Tax Cuts and Jobs Act [Line Items]  
Other Tax Expense (Benefit) (20)
Remeasurement of net deferred tax liabilities due to change in tax rate [Domain]  
Tax Cuts and Jobs Act [Line Items]  
Other Tax Expense (Benefit) (110)
Reduction of Deferred Tax Liability on Foreign Earnings [Domain]  
Tax Cuts and Jobs Act [Line Items]  
Other Tax Expense (Benefit) $ (18)