Quarterly Financial Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Aug. 30, 2018	May 31, 2018	Mar. 01, 2018	Nov. 30, 2017	Aug. 31, 2017	Jun. 01, 2017	Mar. 02, 2017	Dec. 01, 2016	Aug. 30, 2018	Aug. 31, 2017	Sep. 01, 2016
Quarterly Financial Information Disclosure [Abstract]
Net sales	$ 8,440	$ 7,797	$ 7,351	$ 6,803	$ 6,138	$ 5,566	$ 4,648	$ 3,970	$ 30,391	$ 20,322	$ 12,399
Gross margin	5,151	4,723	4,270	3,747	3,112	2,609	1,704	1,011	17,891	8,436	2,505
Operating income	4,377	3,953	3,567	3,097	2,502	1,963	1,044	359	14,994	5,868	168
Net income	4,326	3,823	3,311	2,678	2,369	1,647	894	180	14,138	5,090	(275)
Net income attributable to Micron	$ 4,325	$ 3,823	$ 3,309	$ 2,678	$ 2,368	$ 1,647	$ 894	$ 180	$ 14,135	$ 5,089	$ (276)
Earnings per share
Basic (in dollars per share)	$ 3.73	$ 3.30	$ 2.86	$ 2.36	$ 2.13	$ 1.49	$ 0.81	$ 0.17	$ 12.27	$ 4.67	$ (0.27)
Diluted (in dollars per share)	$ 3.56	$ 3.10	$ 2.67	$ 2.19	$ 1.99	$ 1.40	$ 0.77	$ 0.16	$ 11.51	$ 4.41	$ (0.27)