XML 57 R36.htm IDEA: XBRL DOCUMENT v3.21.1
Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Income Tax Disclosure [Abstract]    
Effective income tax rate 22.50% 19.40%
Valuation allowance impacting rate $ 242  
Valuation allowance   $ 66