Income Taxes - Schedule of Tax Carryforwards and Operating Loss Carryforwards (Details) $ in Millions	Aug. 31, 2026 USD ($)
Federal
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	$ 156
Tax credit carryforwards	71
Federal | Tax capital loss carryforwards:
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	68
State
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	46
Tax credit carryforwards	7
Foreign
Operating Loss Carryforwards [Line Items]
Income tax net operating loss carryforwards	$ 647