Micron Shareholders' Equity and Noncontrolling Interests in Subsidiaries Shareholders' Equity - Capped Call Transactions (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	9 Months Ended			3 Months Ended
	May 30, 2013	May 31, 2012	May 30, 2013 Purchased Call Option [Member] Convertible Senior Notes Due 2033 [Member]	Nov. 29, 2012 Purchased Call Option [Member] 2013 convertible senior notes [Member]
Option Indexed to Issuer's Equity [Line Items]
Option indexed to issuer's equity, strike price (in dollars per share)			10.93	5.08
Option Indexed to Issuer's Equity, capped ceiling (in dollars per share)			$ 14.51	$ 6.64
Option indexed to issuer's equity, shares (in shares)			54.9	45.2
Option Indexed To Issuers Equity Settlement Minimum Proceeds			$ 0
Option Indexed to Issuer's Equity, Settlement Maximum Proceeds			196
Option indexed to issuers equity cash paid	48	102	48
Option indexed to issuers equity cash received upon settlement	$ 24	$ 0		$ 24