Accumulated Other Comprehensive Income - Change in AOCI, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 1,593	$ 2,536	$ 1,737	$ 2,867
Other comprehensive (loss) income before reclassifications			(17)
Amounts reclassified from AOCI			19
Total other comprehensive income (loss)	8	(11)	2	0
Ending Balance	1,358	2,658	1,358	2,658
AOCI Attributable to Parent
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(52)	(6)	(46)	(17)
Total other comprehensive income (loss)	8	(11)	2
Ending Balance	(44)	$ (17)	(44)	$ (17)
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			(44)
Other comprehensive (loss) income before reclassifications			(34)
Amounts reclassified from AOCI			0
Total other comprehensive income (loss)			(34)
Ending Balance	(78)		(78)
Net Investment Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			(24)
Other comprehensive (loss) income before reclassifications			28
Amounts reclassified from AOCI			0
Total other comprehensive income (loss)			28
Ending Balance	4		4
Derivative Instruments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			12
Other comprehensive (loss) income before reclassifications			(11)
Amounts reclassified from AOCI			18
Total other comprehensive income (loss)			7
Ending Balance	19		19
Actuarial Gain (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			29
Other comprehensive (loss) income before reclassifications			0
Amounts reclassified from AOCI			(1)
Total other comprehensive income (loss)			(1)
Ending Balance	28		28
Prior Service (Cost) Credit
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance			(19)
Other comprehensive (loss) income before reclassifications			0
Amounts reclassified from AOCI			2
Total other comprehensive income (loss)			2
Ending Balance	$ (17)		$ (17)