CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2024	Aug. 31, 2023	Aug. 31, 2022
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings (loss)	$ (15,448)	$ (3,528)	$ 4,065
Other comprehensive income (loss), net of tax:
Pension/post-retirement obligations	(8)	(541)	203
Unrealized gain (loss) on cash flow hedges	5	(2)	7
Net investment hedges (loss) gain	(68)	(130)	248
Movement on available for sale debt securities	1	(2)	(95)
Share of other comprehensive income (loss) of equity method investments	45	122	(226)
Currency translation adjustments	126	377	(865)
Total other comprehensive income (loss)	100	(176)	(728)
Total comprehensive (loss) income	(15,348)	(3,704)	3,337
Comprehensive loss attributable to non-controlling interests	(6,808)	(435)	(303)
Comprehensive (loss) income attributable to Walgreens Boots Alliance, Inc.	$ (8,540)	$ (3,269)	$ 3,640