Investments - Available-for-sale and Held-to-maturity Investments (Detail) - USD ($) $ in Millions	May 10, 2026	Aug. 31, 2025
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	$ 821
Debt Securities, Available-for-sale	818
Held-to-maturity, cost basis	232
Debt Securities, Available-for-Sale and Held-to-Maturity, Amortized Cost, before Allowance for Credit Loss	1,053	$ 1,120
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax		3
Short-term investments	1,050	1,123
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	(3)
Government and Agency Securities
Available-for-sale and Held-to-maturity [Line Items]
Available-for-sale, cost basis, total	821	783
Debt Securities, Available-for-sale	818	786
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Gain, before Tax		3
Debt Securities, Available-for-Sale, Accumulated Gross Unrealized Loss, before Tax	(3)
Certificates of deposit
Available-for-sale and Held-to-maturity [Line Items]
Held-to-maturity, recorded basis, total	232	337
Held-to-maturity, cost basis	$ 232	$ 337

Available For Sale And Held To Maturity [Line Items]

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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