Leases - Supplemental Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
Leases [Abstract]
Sublease Income	$ 30	$ 27	$ 59	$ 55
Impairment of right-of-use assets	19	132	156	181
Gain on sale and leaseback	$ 0	$ 98	$ 0	$ 258