CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Nov. 30, 2024	Nov. 30, 2023
Income Statement [Abstract]
Sales	$ 39,459	$ 36,707
Cost of sales	32,680	29,937
Gross profit	6,779	6,771
Selling, general and administrative expenses	7,015	6,851
Equity earnings (loss) in Cencora	(9)	42
Operating loss	(245)	(39)
Other expense, net	(171)	(220)
Loss before interest and income tax provision (benefit)	(415)	(259)
Interest expense, net	122	99
Loss before income tax provision (benefit)	(538)	(358)
Income tax provision (benefit)	66	(74)
Post-tax earnings (loss) from other equity method investments	(1)	6
Net loss	(605)	(278)
Net loss attributable to non-controlling interests	(340)	(210)
Net loss attributable to Walgreens Boots Alliance, Inc.	$ (265)	$ (67)
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ (0.31)	$ (0.08)
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ (0.31)	$ (0.08)
Weighted average common shares outstanding:
Basic (in shares)	863.8	863.0
Diluted (in shares)	863.8	863.0