XML 54 R39.htm IDEA: XBRL DOCUMENT v3.7.0.1
Basis of Presentation and Principles of Consolidation - Tax Matters (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 12 Months Ended 51 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2017
Income Tax Examination [Line Items]        
Income tax provision $ 48 $ 63    
Effective tax rate 22.10% 32.30%    
Income tax provision, percentage change (23.80%)     (23.80%)
Effective tax rate, percentage change (10.20%)     (10.20%)
SE | Foreign Tax Authority        
Income Tax Examination [Line Items]        
Cumulative tax benefits recorded       $ 51
Tax expense if courts disagree with our position $ 40     $ 40
Tax expense (benefits), per diluted share (in dollars per share) $ 0.24     $ 0.24
Increase in tax expense related to receivable under tax sharing agreement     $ 12  
SE | Foreign Tax Authority | Minimum        
Income Tax Examination [Line Items]        
Recurring tax benefits $ 1      
SE | Foreign Tax Authority | Maximum        
Income Tax Examination [Line Items]        
Recurring tax benefits $ 2