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Income Taxes (Tax Carryforwards) (Details) $ in Millions | Aug. 31, 2021 USD ($)
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Domestic - federal |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | $ 8
Domestic - state |
Operating Loss Carryforwards [Line Items] |
Income tax net operating loss carryforwards | 56
Tax credit carryforwards | 3
Foreign |
Operating Loss Carryforwards [Line Items] |
Income tax net operating loss carryforwards | 646
Tax credit carryforwards | 10
Tax capital loss carryforwards | Domestic - federal |
Operating Loss Carryforwards [Line Items] |
Tax credit carryforwards | $ 77

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