CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Common stock	Treasury stock	Paid-in capital	Employee stock loan receivable	Accumulated other comprehensive income (loss)	Retained earnings	Noncontrolling interests
Beginning Balance at Aug. 31, 2015	$ 31,300	$ 12	$ (3,977)	$ 9,953	$ (2)	$ (214)	$ 25,089	$ 439
Beginning Balance (in shares) at Aug. 31, 2015		1,089,910,344
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	4,191						4,173	18
Other comprehensive income (loss), net of tax	(2,834)					(2,778)		(56)
Dividends declared and distributions	(1,578)						(1,578)
Treasury stock purchases	(1,152)		(1,152)
Treasury stock purchases (in shares)		(13,815,558)
Employee stock purchase and option plans	238		195	43
Employee stock purchase and option plans (in shares)		6,891,805
Stock-based compensation	115			115
Employee stock loan receivable	1				1
Ending Balance at Aug. 31, 2016	30,281	$ 12	(4,934)	10,111	(1)	(2,992)	27,684	401
Ending Balance (in shares) at Aug. 31, 2016		1,082,986,591
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	4,101						4,078	23
Other comprehensive income (loss), net of tax	(95)					(59)		(36)
Dividends declared and distributions	(1,723)						(1,625)	(98)
Treasury stock purchases	(5,220)		(5,220)
Treasury stock purchases (in shares)		(64,589,677)
Employee stock purchase and option plans	218		183	34	1
Employee stock purchase and option plans (in shares)		5,452,156
Stock-based compensation	91			91
Noncontrolling interests acquired and arising on business combinations	621			103				518
Ending Balance at Aug. 31, 2017	28,274	$ 12	(9,971)	10,339	0	(3,051)	30,137	808
Ending Balance (in shares) at Aug. 31, 2017		1,023,849,070
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	5,031						5,024	7
Other comprehensive income (loss), net of tax	50					49		1
Dividends declared and distributions	(1,748)						(1,610)	(138)
Treasury stock purchases	(5,228)		(5,228)
Treasury stock purchases (in shares)		(76,069,557)
Employee stock purchase and option plans	174		152	22
Employee stock purchase and option plans (in shares)		4,353,905
Stock-based compensation	130			130
Noncontrolling interests contribution and other	6			2				4
Ending Balance at Aug. 31, 2018	$ 26,689	$ 12	$ (15,047)	$ 10,493	$ 0	$ (3,002)	$ 33,551	$ 682
Ending Balance (in shares) at Aug. 31, 2018		952,133,418