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Schedule I Condensed Parent Company Cash Flows (Details) - USD ($)
$ in Millions
 12 Months Ended
Aug. 31, 2017
Sep. 01, 2016
Sep. 03, 2015
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by operating activities $ 8,153 $ 3,168 $ 5,208
Cash flows from investing activities      
Purchases of available-for-sale securities (1,239) (1,026) (4,392)
Expenditures for property, plant, and equipment (4,734) (5,817) (4,021)
Payments to settle hedging activities (274) (152) (132)
Proceeds from sales of available-for-sale securities 776 2,310 1,490
Proceeds from settlement of hedging activities 184 335 56
Other 190 (74) 25
Net cash provided by (used for) investing activities (7,537) (3,044) (6,216)
Cash flows from financing activities      
Repayments of debt (2,558) (870) (2,329)
Cash paid to acquire treasury stock (35) (148) (884)
Proceeds from issuance of stock under equity plans 142 48 74
Proceeds from issuance of debt 3,311 2,199 2,212
Proceeds from equipment sale-leaseback transactions 0 765 291
Other 8 (203) 13
Net cash provided by (used for) financing activities 349 1,745 (718)
Effect of changes in currency exchange rates on cash, cash equivalents, and restricted cash (12) 19 (133)
Net increase (decrease) in cash, cash equivalents, and restricted cash 953 1,888 (1,859)
Cash, cash equivalents, and restricted cash at beginning of period 4,263 2,375 4,234
Cash, cash equivalents, and restricted cash at end of period 5,216 4,263 2,375
Micron Technology, Inc.      
Condensed Cash Flow Statements, Captions [Line Items]      
Net cash provided by operating activities 1,073 836 995
Cash flows from investing activities      
Purchases of available-for-sale securities (1,239) (859) (1,799)
Expenditures for property, plant, and equipment (694) (651) (609)
Payments to settle hedging activities (279) (155) (135)
Cash contributions to subsidiaries (2) (111) (151)
Cash paid for acquisitions 0 (216) (57)
Proceeds from sales of available-for-sale securities 776 1,015 1,045
Proceeds from settlement of hedging activities 195 337 78
Proceeds from maturities of available-for-sale securities 194 582 536
(Payments) proceeds on loans to subsidiaries, net 54 (550) 65
Cash distributions from subsidiaries 33 47 33
Other 7 72 (7)
Net cash provided by (used for) investing activities (955) (489) (1,001)
Cash flows from financing activities      
Repayments of debt (1,711) (332) (1,645)
Payments of licensing obligations (83) (83) (82)
Cash paid to acquire treasury stock (35) (148) (884)
Proceeds from issuance of stock to Nanya 986 0 0
Proceeds from issuance of stock under equity plans 142 48 74
Proceeds from settlement of capped calls 125 0 0
Proceeds from issuance of debt 0 1,993 2,050
Proceeds from equipment sale-leaseback transactions 0 216 0
Other (69) (46) (36)
Net cash provided by (used for) financing activities (645) 1,648 (523)
Effect of changes in currency exchange rates on cash, cash equivalents, and restricted cash 8 0 0
Net increase (decrease) in cash, cash equivalents, and restricted cash (519) 1,995 (529)
Cash, cash equivalents, and restricted cash at beginning of period 2,716 721 1,250
Cash, cash equivalents, and restricted cash at end of period $ 2,197 $ 2,716 $ 721