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Income Taxes Income Taxes (Details 5) $ in Millions | 12 Months Ended
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Jun. 30, 2016 USD ($)
State tax credit carryforward [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforward, Description | No expiration
Tax Credit Carryforward, Amount | $ 0
Federal tax credit carryforward [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforward, Description | June 2017 to June 2025
Tax Credit Carryforward, Amount | $ 3
Foreign tax credit carryforward [Member] |
Tax Credit Carryforward [Line Items] |
Tax Credit Carryforward, Description | June 2034
Tax Credit Carryforward, Amount | $ 0

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