Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Reconciliation of Net Income to Adjusted EBITDA) (Details)

v3.8.0.1
Segment Information (Reconciliation of Net Income to Adjusted EBITDA) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
Segment Reporting [Abstract]      
Net income $ 39 $ 33 $ 230
Provision for income taxes 16 22 $ 13
Depreciation and amortization 19 18  
Interest expense, net 1 2  
Stock-based compensation 3 2  
Separation-related 12 0  
Transaction-related 2 0  
Restructuring 0 1  
Adjusted EBITDA $ 92 $ 78