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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

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