Income Taxes Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective Income Tax Rate Reconciliation, Percent	(23.90%)	34.90%	(27.80%)	69.50%
Effective Tax Rate without CARES Act, Percent		(10.20%)		15.80%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%	21.00%
Income Taxes Paid, Net			$ 246.9
Income tax receivable	$ 191.9		$ 191.9		$ 445.8