Income Taxes - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Jun. 30, 2020
Operating Loss Carryforwards [Line Items]
Proceeds from Income Tax Refunds		$ 206
Foreign Tax Authority [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards		13
Deferred Tax Assets, Valuation Allowance		11
Forecast [Member]
Operating Loss Carryforwards [Line Items]
Proceeds from Income Tax Refunds	$ 205
Interest Income [Member]
Operating Loss Carryforwards [Line Items]
Proceeds from Income Tax Refunds		1
Other Assets [Member]
Operating Loss Carryforwards [Line Items]
Deferred Tax Assets, Tax Credit Carryforwards, Other		$ 410