CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (UNAUDITED) [Abstract]
Net sales	$ 29,498	$ 28,795	$ 88,715	$ 74,922
Cost of sales	22,001	21,314	65,772	55,263
Gross Profit	7,497	7,481	22,943	19,659
Selling, general and administrative expenses	5,967	6,080	18,085	16,142
Equity earnings in AmerisourceBergen	3	0	3	0
Equity earnings in Alliance Boots	0	0	0	315
Operating Income	1,533	1,401	4,861	3,832
Gain on previously held equity interest	0	0	0	706
Other income (expense)	28	461	(525)	1,164
Earnings Before Interest and Income Tax Provision	1,561	1,862	4,336	5,702
Interest expense, net	147	151	425	350
Earnings Before Income Tax Provision	1,414	1,711	3,911	5,352
Income tax provision	322	408	790	1,120
Post tax earnings from equity method investments	15	7	35	15
Net Earnings	1,107	1,310	3,156	4,247
Net earnings attributable to noncontrolling interests	4	8	13	53
Net Earnings Attributable to Walgreens Boots Alliance, Inc.	$ 1,103	$ 1,302	$ 3,143	$ 4,194
Net earnings per common share attributable to Walgreens Boots Alliance, Inc. - basic (in dollars per share)	$ 1.02	$ 1.19	$ 2.90	$ 4.08
Net earnings per common share attributable to Walgreens Boots Alliance, Inc. - diluted (in dollars per share)	1.01	1.18	2.88	4.04
Dividends declared per share (in dollars per share)	$ 0.3600	$ 0.3375	$ 1.0800	$ 1.0125
Average shares outstanding (in shares)	1,080.8	1,091.4	1,083.3	1,026.9
Dilutive effect of stock options (in shares)	7.4	11.0	8.4	10.8
Average diluted shares (in shares)	1,088.2	1,102.4	1,091.7	1,037.7