v3.3.1.900
Equity-Based Compensation Performance Share Units (Details)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 31, 2015
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Pretax expense for PSUs | $ $ 2
After-tax expense for PSUs | $ 1
Employee Service Share-Based Compensation, Non Vested Awards, Total Compensation Cost Not Yet Recognized, Other Than Options, PSUs | $ $ 5
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year 8 months
Performance Share Unit [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Non-vested at January 1 | shares 0.0
Granted | shares 0.9
Vested | shares 0.0
Forfeited | shares (0.1)
Non-vested at December 31 | shares 0.8
Non-vested at January 1 | $ / shares $ 0.00
Granted | $ / shares 71.72
Vested | $ / shares 0.00
Forfeited | $ / shares 71.72
Non-vested at December 31 | $ / shares $ 71.72
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 2 years