CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Feb. 28, 2025	Feb. 29, 2024	Feb. 28, 2025	Feb. 29, 2024
Income Statement [Abstract]
Sales	$ 38,588	$ 37,052	$ 78,048	$ 73,760
Cost of sales	31,654	30,012	64,333	59,948
Gross profit	6,935	7,041	13,714	13,811
Selling, general and administrative expenses	8,891	7,921	15,906	14,772
Impairment of goodwill	3,653	12,369	3,653	12,369
Equity earnings in Cencora	42	79	33	120
Operating loss	(5,567)	(13,171)	(5,812)	(13,209)
Other income (expense), net	1,450	195	1,279	(25)
Loss before interest and income tax benefit	(4,117)	(12,976)	(4,532)	(13,235)
Interest expense, net	129	138	251	237
Loss before income tax benefit	(4,246)	(13,114)	(4,783)	(13,472)
Income tax benefit	(212)	(782)	(147)	(856)
Post-tax earnings (loss) from other equity method investments	(2)	10	(4)	16
Net loss	(4,035)	(12,322)	(4,640)	(12,600)
Net loss attributable to non-controlling interests	(1,182)	(6,415)	(1,522)	(6,625)
Net loss attributable to Walgreens Boots Alliance, Inc.	$ (2,853)	$ (5,908)	$ (3,118)	$ (5,975)
Net loss per common share:
Basic (in dollars per share)	$ (3.30)	$ (6.85)	$ (3.61)	$ (6.93)
Net loss per common share:
Diluted (in dollars per share)	$ (3.30)	$ (6.85)	$ (3.61)	$ (6.93)
Weighted average common shares outstanding:
Basic (in shares)	864.1	862.5	864.0	862.8
Diluted (in shares)	864.1	862.5	864.0	862.8