Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effective tax rate from continuing operations	(24.90%)	18.40%	(11.20%)	13.70%
Unrecognized Tax Benefits	$ 280		$ 280		$ 261
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	195		195		$ 183
Decrease in Unrecognized Tax Benefits is Reasonably Possible	24		24
The CARES Act	$ 2,200,000		$ 2,200,000