CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Income Statement [Abstract]
Sales	$ 37,052	$ 34,862	$ 73,760	$ 68,244
Cost of sales	30,012	27,807	59,948	54,236
Gross profit	7,041	7,055	13,811	14,008
Selling, general and administrative expenses	7,921	6,934	14,772	20,091
Impairments	12,369	0	12,369	0
Equity earnings in Cencora	79	75	120	129
Operating (loss) income	(13,171)	197	(13,209)	(5,954)
Other income (expense), net	195	552	(25)	1,544
(Loss) earnings before interest and income tax (benefit) provision	(12,976)	749	(13,235)	(4,410)
Interest expense, net	138	141	237	252
(Loss) earnings before income tax (benefit) provision	(13,114)	607	(13,472)	(4,662)
Income tax (benefit) provision	(782)	70	(856)	(1,377)
Post-tax earnings from other equity method investments	10	6	16	13
Net (loss) earnings	(12,322)	544	(12,600)	(3,272)
Net loss attributable to non-controlling interests	(6,415)	(159)	(6,625)	(253)
Net (loss) earnings attributable to Walgreens Boots Alliance, Inc.	$ (5,908)	$ 703	$ (5,975)	$ (3,018)
Earnings Per Share, Basic [Abstract]
Total (in dollars per share)	$ (6.85)	$ 0.81	$ (6.93)	$ (3.50)
Earnings Per Share, Diluted [Abstract]
Total (in dollars per share)	$ (6.85)	$ 0.81	$ (6.93)	$ (3.50)
Weighted average common shares outstanding:
Basic (in shares)	862.5	862.6	862.8	863.1
Diluted (in shares)	862.5	863.4	862.8	863.1