Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v3.19.3
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Income Tax Disclosure [Abstract]        
Income tax expense (benefit) $ (3) $ 3 $ 0 $ 15
U.S. corporate income tax rate 21.00% 21.00% 21.00% 21.00%