CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Income Statement [Abstract]
Sales	$ 33,382	$ 33,901
Cost of sales	26,429	26,326
Gross profit	6,953	7,574
Selling, general and administrative expenses	13,158	6,391
Equity earnings in AmerisourceBergen	53	100
Operating (loss) income	(6,151)	1,283
Other income, net	992	2,617
(Loss) earnings before interest and income tax (benefit) provision	(5,159)	3,900
Interest expense, net	110	86
(Loss) earnings before income tax (benefit) provision	(5,270)	3,814
Income tax (benefit) provision	(1,447)	275
Post-tax earnings (loss) from other equity method investments	7	(7)
Net (loss) earnings	(3,816)	3,531
Net loss attributable to non-controlling interests	(94)	(48)
Net (loss) earnings attributable to Walgreens Boots Alliance, Inc.	(3,721)	3,580
Net (loss) earnings per common share:
Net Income (Loss) Attributable to Parent, Total	$ (3,721)	$ 3,580
Earnings Per Share, Basic [Abstract]
Total (in dollars per share)	$ (4.31)	$ 4.13
Earnings Per Share, Diluted [Abstract]
Total (in dollars per share)	$ (4.31)	$ 4.13
Weighted average common shares outstanding:
Basic (in shares)	863.6	865.8
Diluted (in shares)	863.6	867.6