Income Taxes Income Taxes Disclosure (Details) - USD ($)	3 Months Ended			6 Months Ended	12 Months Ended
	Mar. 31, 2021	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Dec. 31, 2019
Income Tax Contingency [Line Items]
Liability for Uncertainty in Income Taxes, Current			$ 140,000,000.0		$ 15,000,000.0
Increase to the Income Tax Provision			129,900,000
Increase in liability for uncertain tax positions				$ 99,600,000	$ 89,200,000
Reduction in liability for Unrecognized Tax Benefits			$ 46,100,000
Scenario, Forecast
Income Tax Contingency [Line Items]
Expected reduction to tax expense by CARES Act	$ 26,000,000.0
Scenario, Adjustment [Member]
Income Tax Contingency [Line Items]
Expected reduction to tax expense by CARES Act		$ 4,000,000.0