CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2019
Comprehensive income:
Net earnings	$ 2,512	$ 424	$ 3,962
Other comprehensive income (loss), net of tax:
Pension/postretirement obligations	389	(700)	(149)
Unrealized gain (loss) on cash flow hedges	21	(6)	5
Net investment hedges	(1)	(90)	55
Unrealized gain on available for sale securities	96	0	0
Share of other comprehensive (loss) of equity method investments	(18)	(14)	(1)
Currency translation adjustments	1,182	958	(820)
Total other comprehensive income (loss)	1,669	148	(909)
Total comprehensive income	4,181	572	3,053
Comprehensive (loss) attributable to noncontrolling interests	(25)	(10)	(33)
Comprehensive income attributable to Walgreens Boots Alliance, Inc.	$ 4,205	$ 582	$ 3,086