v3.20.1
Income Taxes​ (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Income Tax Disclosure [Abstract]    
Effective income tax rate, before discrete items 28.60% 36.40%
Effective income tax rate, including discrete items 34.10% 37.90%
Income Tax Expense (Benefit)    
Pretax income at estimated annual effective income tax rate before discrete items $ 26 $ 24
Interim period treatment of operational losses in foreign jurisdictions for which no tax benefit is recognized 1 (1)
Other discrete items 4 2
Provision for income taxes $ 31 $ 25