Debt - Schedule of Long-term Debt (Details) $ / shares in Units, shares in Millions, TWD in Millions					3 Months Ended	6 Months Ended	12 Months Ended
		Jun. 18, 2015 USD ($)	Apr. 17, 2015 USD ($)	Mar. 14, 2015 USD ($)	Dec. 02, 2014 USD ($)	Feb. 12, 2015 USD ($)	Sep. 03, 2015 USD ($) shares integer $ / shares		Aug. 28, 2014 USD ($)		Aug. 29, 2013 USD ($)	Sep. 03, 2015 TWD	Apr. 30, 2015 USD ($)	Feb. 03, 2015 USD ($)	Jul. 31, 2014 USD ($)	Feb. 28, 2014 USD ($)	Feb. 26, 2014 USD ($)	Dec. 20, 2013 USD ($) integer	Nov. 12, 2013 USD ($)	Feb. 12, 2013 USD ($)	Apr. 18, 2012 USD ($)	Jul. 26, 2011 USD ($)
Debt Instrument [Line Items]
Current debt							$ 1,089,000,000		$ 1,618,000,000
Long-term debt							6,252,000,000		4,893,000,000
Debt							7,341,000,000		6,511,000,000
Outstanding principal							8,038,000,000		7,134,000,000
Capital Lease Obligations							792,000,000
Debt Instrument, Unamortized Discount							(697,000,000)		(898,000,000)
Leases, Capital [Abstract]
Proceeds from equipment sale-leaseback transactions							$ 291,000,000		14,000,000		$ 126,000,000
Convertible Debt Issuances [Abstract]
Share Price (in dollars per share) | $ / shares							$ 16.59
Redeemable convertible notes							$ 49,000,000		68,000,000
Interest Costs Incurred [Abstract]
Amortization of debt discount and issuance costs							138,000,000		167,000,000		122,000,000
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016							349,000,000
2017							173,000,000
2018							131,000,000
2019							91,000,000
2020							32,000,000
2021 and thereafter							76,000,000
Capital Leases, Future Minimum Payments, Interest Included in Payments							(60,000,000)
Capital Lease Obligations							792,000,000
Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							655,000,000		1,065,000,000
Long-term debt							4,797,000,000		3,191,000,000
Debt							5,452,000,000		4,256,000,000
Capital Lease Obligations							214,000,000
Subordinated Debt							5,180,000,000
Leases, Capital [Abstract]
Proceeds from equipment sale-leaseback transactions							0		0		126,000,000
Convertible Debt Issuances [Abstract]
Redeemable convertible notes							49,000,000		$ 68,000,000
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2016							179,000,000
2017							30,000,000
2018							3,000,000
2019							3,000,000
2020							3,000,000
2021 and thereafter							3,000,000
Capital Leases, Future Minimum Payments, Interest Included in Payments							(7,000,000)
Capital Lease Obligations							214,000,000
Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member]
Convertible Debt Issuances [Abstract]
Minority Interest Decrease From Purchase Of Interest Ownership Percentage									9.90%
2033E and 2033F convertible senior notes [Member]
Convertible Debt Issuances [Abstract]
Redeemable convertible notes							49,000,000		$ 68,000,000
Reorganization obligation [Member]
Debt Instrument [Line Items]
Current debt							161,000,000		192,000,000
Long-term debt							701,000,000		939,000,000
Debt							$ 862,000,000		1,131,000,000
Effective interest rate (in thousandths)							6.25%					6.25%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						4 years
Outstanding principal							$ 1,012,000,000		1,369,000,000
Debt Instrument, Unamortized Discount							(150,000,000)		(238,000,000)
Capital lease obligations [Member]
Debt Instrument [Line Items]
Current debt	[2]						326,000,000		323,000,000
Long-term debt	[2]						466,000,000		588,000,000
Debt	[2]						$ 792,000,000		$ 911,000,000
Weighted average effective interest rate (in thousandths)							3.70%		4.30%			3.70%
Weighted Average Remaining Term (in years)	[1]						4 years
Outstanding principal									$ 911,000,000
Capital Lease Obligations							$ 792,000,000
Debt Instrument, Unamortized Discount							0		0
Leases, Capital [Abstract]
Capital Lease Obligations Incurred							$ 324,000,000		$ 121,000,000
Percentage, Incurred in Current Period							3.20%		4.60%
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Lease Obligations							$ 792,000,000
Capital lease obligations [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[3]						174,000,000		$ 172,000,000
Long-term debt	[3]						40,000,000		233,000,000
Debt	[3]						$ 214,000,000		$ 405,000,000
Weighted average effective interest rate (in thousandths)							4.50%		4.70%			4.50%
Weighted Average Remaining Term (in years)							1 year
Capital lease obligations [Member] | Sales-leaseback transactions [Member]
Leases, Capital [Abstract]
Proceeds from equipment sale-leaseback transactions							$ 291,000,000
Secured Debt [Member] | 1.258% senior notes [Member]
Debt Instrument [Line Items]
Current debt							87,000,000		$ 86,000,000
Long-term debt							217,000,000		305,000,000
Debt							$ 304,000,000		391,000,000
Stated interest rate (in thousandths)							1.258%					1.258%
Effective interest rate (in thousandths)							1.97%					1.97%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						3 years
Outstanding principal							$ 323,000,000		416,000,000
Debt Instrument, Unamortized Discount							(19,000,000)		(25,000,000)
Debt Instrument, Face Amount																		$ 462,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument, Collateral Amount							$ 95,000,000
Debt instruments number of periodic payments | integer																		10
Debt Instrument Payment Of Third Party Credit Enhancement Fee									23,000,000
Corporate bonds [Member]
Debt Instrument [Line Items]
Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent							80.00%					80.00%
Corporate bonds [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument Redemption Price Percentage of Principal Amount Redeemable Using Equity Offering Proceeds							35.00%
Corporate bonds [Member] | 2022 senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							589,000,000		587,000,000
Debt							$ 589,000,000		587,000,000
Stated interest rate (in thousandths)							5.875%					5.875%
Effective interest rate (in thousandths)							6.14%					6.14%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						6 years
Outstanding principal							$ 600,000,000		600,000,000
Debt Instrument, Unamortized Discount							$ (11,000,000)		(13,000,000)
Debt Instrument, Face Amount																$ 600,000,000
Debt Instrument, Redemption Price, Percentage	[4]						105.875%
Corporate bonds [Member] | 2022 senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							589,000,000		587,000,000
Debt							$ 589,000,000		587,000,000
Stated interest rate (in thousandths)							5.875%					5.875%
Effective interest rate (in thousandths)							6.14%					6.14%
Corporate bonds [Member] | 2023 senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							988,000,000		0
Debt							$ 988,000,000		0
Stated interest rate (in thousandths)							5.25%					5.25%
Effective interest rate (in thousandths)							5.43%					5.43%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						8 years
Outstanding principal							$ 1,000,000,000		0
Debt Instrument, Unamortized Discount							$ (12,000,000)		0
Debt Instrument, Face Amount														$ 1,000,000,000
Debt Instrument, Redemption Price, Percentage	[4]						105.25%
Corporate bonds [Member] | 2023 senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							988,000,000		0
Debt							$ 988,000,000		0
Stated interest rate (in thousandths)							5.25%					5.25%
Effective interest rate (in thousandths)							5.43%					5.43%
Corporate bonds [Member] | 2024 senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							545,000,000		0
Debt							$ 545,000,000		0
Stated interest rate (in thousandths)							5.25%					5.25%
Effective interest rate (in thousandths)							5.38%					5.38%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						8 years
Outstanding principal							$ 550,000,000		0
Debt Instrument, Unamortized Discount							$ (5,000,000)		0
Debt Instrument, Face Amount													$ 550,000,000
Debt Instrument, Redemption Price, Percentage	[4]						105.25%
Corporate bonds [Member] | 2024 senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							545,000,000		0
Debt							$ 545,000,000		0
Stated interest rate (in thousandths)							5.25%					5.25%
Effective interest rate (in thousandths)							5.38%					5.38%
Corporate bonds [Member] | 2025 senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							1,138,000,000		1,137,000,000
Debt							$ 1,138,000,000		1,137,000,000
Stated interest rate (in thousandths)							5.50%					5.50%
Effective interest rate (in thousandths)							5.56%					5.56%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						9 years
Outstanding principal							$ 1,150,000,000		1,150,000,000
Debt Instrument, Unamortized Discount							$ (12,000,000)		(13,000,000)
Debt Instrument, Face Amount															$ 1,150,000,000
Debt Instrument, Redemption Price, Percentage	[4]						105.50%
Corporate bonds [Member] | 2025 senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							1,138,000,000		1,137,000,000
Debt							$ 1,138,000,000		1,137,000,000
Stated interest rate (in thousandths)							5.50%					5.50%
Effective interest rate (in thousandths)							5.56%					5.56%
Corporate bonds [Member] | 2026 senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		0
Long-term debt							446,000,000		0
Debt							$ 446,000,000		0
Stated interest rate (in thousandths)							5.625%					5.625%
Effective interest rate (in thousandths)							5.73%					5.73%
Debt Instrument Remaining Discount Amortization Period (in years)	[1]						10 years
Outstanding principal							$ 450,000,000		0
Debt Instrument, Unamortized Discount							$ (4,000,000)		0
Debt Instrument, Face Amount													$ 450,000,000
Debt Instrument, Redemption Price, Percentage	[4]						105.625%
Corporate bonds [Member] | 2026 senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5]						$ 0		0
Long-term debt	[5]						446,000,000		0
Debt	[5]						$ 446,000,000		0
Stated interest rate (in thousandths)							5.625%					5.625%
Effective interest rate (in thousandths)							5.73%					5.73%
Corporate bonds [Member] | Unsecuredseniorcorporatedebtissuedin2015 [Member]
Convertible Debt Issuances [Abstract]
Payments of debt issuance costs							$ 21,000,000
Convertible Debt [Member]
Debt Instrument [Line Items]
Outstanding principal							$ 1,956,000,000
Convertible Debt Issuances [Abstract]
Shares issuable upon conversion (in shares) | shares							124
Conversion value in excess of principal	[6]						$ 553,000,000
Equity component of convertible debt included in additional paid in capital							$ 265,000,000		313,000,000
Conversion rights, minimum number of trading days (in days) | integer							20
Conversion rights, consecutive trading period (in days)							30 days
Conversion rights, threshold percentage of applicable conversion price (in hundredths)							130.00%
Interest Costs Incurred [Abstract]
Contractual interest expense							$ 59,000,000		66,000,000		60,000,000
Amortization of debt discount and issuance costs							42,000,000		66,000,000		96,000,000
Convertible note interest expense							$ 101,000,000		132,000,000		156,000,000
Convertible Debt [Member] | Micron Technology, Inc. [Member]
Convertible Debt Issuances [Abstract]
Conversion rights, minimum number of trading days (in days) | integer							20
Conversion rights, consecutive trading period (in days)							30 days
Conversion rights, threshold percentage of applicable conversion price (in hundredths)							130.00%
Convertible Debt [Member] | 2031B convertible senior notes [Member]
Debt Instrument [Line Items]
Current debt							$ 0		361,000,000	[7]
Long-term debt							0		0	[7]
Debt							$ 0		361,000,000	[7],[8]
Stated interest rate (in thousandths)							1.875%					1.875%
Effective interest rate (in thousandths)							6.98%					6.98%
Outstanding principal							$ 0		114,000,000	[8],[9]
Debt Instrument, Unamortized Discount							0		(28,000,000)	[8]
Debt Instrument, Face Amount																						$ 345,000,000
Convertible Debt [Member] | 2031B convertible senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5]						0	[7]	361,000,000
Long-term debt	[5]						0	[7]	0
Debt	[5]						$ 0	[7]	361,000,000
Stated interest rate (in thousandths)							1.875%					1.875%
Effective interest rate (in thousandths)							6.98%					6.98%
Convertible Debt [Member] | 2032C convertible senior notes [Member]
Debt Instrument [Line Items]
Current debt	[9]						$ 0	[10]	0
Long-term debt	[9]						197,000,000	[10]	309,000,000
Debt	[9]						$ 197,000,000	[10]	309,000,000
Stated interest rate (in thousandths)							2.375%					2.375%
Effective interest rate (in thousandths)							5.95%					5.95%
Expected term for amortization of the remaining debt discount (in years)	[1]						4 years
Outstanding principal							$ 224,000,000		362,000,000
Debt Instrument, Unamortized Discount							$ (27,000,000)		(53,000,000)
Debt Instrument, Face Amount																					$ 550,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument Put Date Earliest	[11]						May 31, 2019
Shares issuable upon conversion (in shares) | shares							23
Initial conversion, price per share | $ / shares							$ 9.63
Conversion price per share threshold (dollars per share) | $ / shares	[12]						$ 12.52
Conversion value in excess of principal	[6]						$ 161,000,000
Equity component of convertible debt included in additional paid in capital							$ 41,000,000		67,000,000
Conversion rate (in shares)							103.8907
Principal amount per debenture used In coversion rate							$ 1,000
Interest Costs Incurred [Abstract]
Contractual interest expense							8,000,000		11,000,000		13,000,000
Amortization of debt discount and issuance costs							9,000,000		12,000,000		14,000,000
Convertible Debt [Member] | 2032C convertible senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5],[13]						0		0
Long-term debt	[5],[13]						197,000,000		309,000,000
Debt	[5],[13]						$ 197,000,000		309,000,000
Stated interest rate (in thousandths)							2.375%					2.375%
Effective interest rate (in thousandths)							5.95%					5.95%
Convertible Debt [Member] | 2032D convertible senior notes [Member]
Debt Instrument [Line Items]
Current debt	[9]						$ 0	[10]	0
Long-term debt	[9]						150,000,000	[10]	284,000,000
Debt	[9]						$ 150,000,000	[10]	284,000,000
Stated interest rate (in thousandths)							3.125%					3.125%
Effective interest rate (in thousandths)							6.33%					6.33%
Expected term for amortization of the remaining debt discount (in years)	[1]						6 years
Outstanding principal							$ 177,000,000		344,000,000
Debt Instrument, Unamortized Discount							$ (27,000,000)		(60,000,000)
Debt Instrument, Face Amount																					$ 450,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument Put Date Earliest	[11]						May 31, 2021
Shares issuable upon conversion (in shares) | shares							18
Initial conversion, price per share | $ / shares							$ 9.98
Conversion price per share threshold (dollars per share) | $ / shares	[12]						$ 12.97
Conversion value in excess of principal	[6]						$ 117,000,000
Equity component of convertible debt included in additional paid in capital							$ 35,000,000		69,000,000
Conversion rate (in shares)							100.1803
Principal amount per debenture used In coversion rate							$ 1,000
Interest Costs Incurred [Abstract]
Contractual interest expense							9,000,000		13,000,000		14,000,000
Amortization of debt discount and issuance costs							6,000,000		8,000,000		9,000,000
Convertible Debt [Member] | 2032D convertible senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5],[13]						0		0
Long-term debt	[5],[13]						150,000,000		284,000,000
Debt	[5],[13]						$ 150,000,000		284,000,000
Stated interest rate (in thousandths)							3.125%					3.125%
Effective interest rate (in thousandths)							6.33%					6.33%
Convertible Debt [Member] | 2032C and 2032D convertible senior notes [Member]
Convertible Debt Issuances [Abstract]
Conversion rights, minimum number of trading days (in days) | integer							20
Conversion rights, consecutive trading period (in days)							30 days
Conversion rights, threshold percentage of applicable conversion price (in hundredths)							130.00%
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths)							98.00%
Make whole premium discount rate							1.50%
Convertible Debt [Member] | 2033E convertible senior notes [Member]
Debt Instrument [Line Items]
Current debt	[9]						$ 217,000,000	[10]	272,000,000
Long-term debt	[9]						0	[10]	0
Debt	[9]						$ 217,000,000	[10]	272,000,000
Stated interest rate (in thousandths)							1.625%					1.625%
Effective interest rate (in thousandths)							4.50%					4.50%
Expected term for amortization of the remaining debt discount (in years)	[1]						2 years
Outstanding principal							$ 233,000,000		300,000,000
Debt Instrument, Unamortized Discount							$ (16,000,000)		(28,000,000)
Debt Instrument, Face Amount																				$ 300,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument Put Date Earliest	[11]						Feb. 28, 2018
Shares issuable upon conversion (in shares) | shares							21
Initial conversion, price per share | $ / shares							$ 10.93
Conversion price per share threshold (dollars per share) | $ / shares	[12]						$ 14.21
Conversion value in excess of principal	[6]						$ 121,000,000
Equity component of convertible debt included in additional paid in capital							8,000,000		3,000,000
Redeemable convertible notes							16,000,000		27,000,000
Interest Costs Incurred [Abstract]
Contractual interest expense							5,000,000		5,000,000		3,000,000
Amortization of debt discount and issuance costs							7,000,000		7,000,000		4,000,000
Convertible Debt [Member] | 2033E convertible senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5],[13]						217,000,000		272,000,000
Long-term debt	[5],[13]						0		0
Debt	[5],[13]						$ 217,000,000		272,000,000
Stated interest rate (in thousandths)							1.625%					1.625%
Effective interest rate (in thousandths)							4.50%					4.50%
Convertible Debt [Member] | 2033F convertible senior note [Member]
Debt Instrument [Line Items]
Current debt	[9]						$ 264,000,000	[10]	260,000,000
Long-term debt	[9]						0	[10]	0
Debt	[9]						$ 264,000,000	[10]	260,000,000
Stated interest rate (in thousandths)							2.125%					2.125%
Effective interest rate (in thousandths)							4.93%					4.93%
Expected term for amortization of the remaining debt discount (in years)	[1]						4 years
Outstanding principal							$ 297,000,000		300,000,000
Debt Instrument, Unamortized Discount							$ (33,000,000)		(40,000,000)
Debt Instrument, Face Amount																				$ 300,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument Put Date Earliest	[11]						Feb. 28, 2020
Shares issuable upon conversion (in shares) | shares							27
Initial conversion, price per share | $ / shares							$ 10.93
Conversion price per share threshold (dollars per share) | $ / shares	[12]						$ 14.21
Conversion value in excess of principal	[6]						$ 154,000,000
Equity component of convertible debt included in additional paid in capital							8,000,000		1,000,000
Redeemable convertible notes							33,000,000		41,000,000
Interest Costs Incurred [Abstract]
Contractual interest expense							6,000,000		6,000,000		3,000,000
Amortization of debt discount and issuance costs							7,000,000		6,000,000		3,000,000
Convertible Debt [Member] | 2033F convertible senior note [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5],[13]						264,000,000		260,000,000
Long-term debt	[5],[13]						0		0
Debt	[5],[13]						$ 264,000,000		260,000,000
Stated interest rate (in thousandths)							2.125%					2.125%
Effective interest rate (in thousandths)							4.93%					4.93%
Convertible Debt [Member] | 2033E and 2033F convertible senior notes [Member]
Convertible Debt Issuances [Abstract]
Initial conversion, price per share | $ / shares							$ 10.93
Conversion price per share threshold (dollars per share) | $ / shares							$ 14.21
Conversion rate (in shares)							91.4808
Principal amount per debenture used In coversion rate							$ 1,000
Conversion rights, minimum number of trading days (in days) | integer							20
Conversion rights, consecutive trading period (in days)							30 days
Conversion rights, threshold percentage of applicable conversion price (in hundredths)							130.00%
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths)							98.00%
Convertible Debt [Member] | 2043G convertible senior notes [Member]
Debt Instrument [Line Items]
Current debt	[9]						$ 0		0
Long-term debt	[9]						644,000,000		631,000,000
Debt	[9],[14]						$ 644,000,000		631,000,000
Stated interest rate (in thousandths)							3.00%					3.00%
Effective interest rate (in thousandths)							6.76%					6.76%
Expected term for amortization of the remaining debt discount (in years)	[1],[14]						13 years
Outstanding principal	[14]						$ 1,025,000,000		1,025,000,000
Debt Instrument, Unamortized Discount	[14]						(381,000,000)		(394,000,000)
Debt Instrument, Face Amount	[15]						$ 1,025,000,000
Convertible Debt Issuances [Abstract]
Debt Instrument Put Date Earliest	[11],[15]						Nov. 30, 2028
Shares issuable upon conversion (in shares) | shares							35
Initial conversion, price per share | $ / shares							$ 29.16
Conversion price per share threshold (dollars per share) | $ / shares	[12]						$ 37.91
Conversion value in excess of principal	[6]						$ 0
Debt Instrument Issued At A Discount Original Principal Amount							820,000,000
Debt Instrument, Scheduled Accreted Principal Amount							917,000,000
Equity component of convertible debt included in additional paid in capital							$ 173,000,000		173,000,000
Conversion rate (in shares)							34.2936
Principal amount per debenture used In coversion rate							$ 1,000
Conversion rights, minimum number of trading days (in days) | integer							20
Conversion rights, consecutive trading period (in days)							30 days
Conversion rights, threshold percentage of applicable conversion price (in hundredths)							130.00%
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths)							98.00%
Debt Instrument Discounted Issue Price Per Debenture							$ 800
Interest Costs Incurred [Abstract]
Contractual interest expense							31,000,000		24,000,000		0
Amortization of debt discount and issuance costs							13,000,000		9,000,000		0
Convertible Debt [Member] | 2043G convertible senior notes [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt	[5]						0		0
Long-term debt	[5]						644,000,000		631,000,000
Debt	[5]						$ 644,000,000		631,000,000
Stated interest rate (in thousandths)							3.00%					3.00%
Effective interest rate (in thousandths)							6.76%					6.76%
Convertible Debt [Member] | Other Notes [Member]
Interest Costs Incurred [Abstract]
Contractual interest expense	[16]						$ 0		7,000,000		27,000,000
Amortization of debt discount and issuance costs	[16]						0		24,000,000		$ 66,000,000
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Current debt							34,000,000		124,000,000
Long-term debt							171,000,000		113,000,000
Debt							$ 205,000,000		237,000,000
Weighted average stated interest rate (in thousandths)							2.209%					2.209%
Weighted average effective interest rate (in thousandths)							2.38%					2.38%
Weighted Average Remaining Term (in years)	[1]						4 years
Outstanding principal							$ 205,000,000		243,000,000
Debt Instrument, Unamortized Discount							0		(6,000,000)
Notes Payable, Other Payables [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Current debt							0		0
Long-term debt							60,000,000		10,000,000
Debt							$ 60,000,000		10,000,000
Weighted average stated interest rate (in thousandths)							1.654%					1.654%
Weighted average effective interest rate (in thousandths)							1.65%					1.65%
Notes Payable, Other Payables [Member] | Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member]
Debt Instrument [Line Items]
Debt																	$ 127,000,000
Notes Payable, Other Payables [Member] | Revolving Credit Facility 1 [Member]
Convertible Debt Issuances [Abstract]
Terminated Line Of Credit						$ 255,000,000
Debt instrument, original term						3 years
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member]
Debt Instrument [Line Items]
Debt							$ 75,000,000
Convertible Debt Issuances [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity							$ 750,000,000
Debt instrument, original term							5 years
Line of Credit Facility, Interest Rate at Period End							2.15%					2.15%
Line of Credit Facility, Remaining Borrowing Capacity							$ 572,000,000
Draw on facility agreement			$ 75,000,000
Percentage of collateral to face value of issued and ouststanding credit facility							80.00%					80.00%
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member] | Libor [Member] | Minimum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							1.75%
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member] | Libor [Member] | Maximum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							2.25%
Notes Payable, Other Payables [Member] | Revolving Credit Facility 2 [Member]
Convertible Debt Issuances [Abstract]
Terminated Line Of Credit					$ 153,000,000
Debt instrument, original term					3 years
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member]
Debt Instrument [Line Items]
Debt							$ 50,000,000
Convertible Debt Issuances [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity							$ 540,000,000
Debt instrument, original term							5 years
Line of Credit Facility, Interest Rate at Period End							1.65%					1.65%
Line of Credit Facility, Remaining Borrowing Capacity							$ 270,000,000
Draw on facility agreement			$ 50,000,000
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Libor [Member] | Minimum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							1.25%
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Libor [Member] | Maximum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							1.75%
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Debt							$ 50,000,000
Convertible Debt Issuances [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity							540,000,000
Line of Credit Facility, Remaining Borrowing Capacity							270,000,000
Notes Payable, Other Payables [Member] | secured debt 5 [Member] | IM Flash Technologies, LLC [Member]
Convertible Debt Issuances [Abstract]
Terminated Line Of Credit							275,000,000
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member]
Debt Instrument [Line Items]
Debt							$ 40,000,000
Convertible Debt Issuances [Abstract]
Debt instrument, original term							3 years
Proceeds from Issuance of Other Long-term Debt		$ 40,000,000
Debt Instrument, Maximum Borrowing Capacity, Amount							$ 213,000,000					TWD 6,900
Debt Instrument Period After Draw Prior To Initial Payment 1							6 months
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Libor [Member] | United States of America, Dollars
Convertible Debt Issuances [Abstract]
Debt Instrument Variable Reference Rate Period 1							3 months
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Libor [Member] | United States of America, Dollars | Maximum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							2.20%
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Taipei Interbank Offered Rate TAIBOR [Member] | New Taiwan dollar
Convertible Debt Issuances [Abstract]
Debt Instrument Variable Reference Rate Period 1							3 months
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Taipei Interbank Offered Rate TAIBOR [Member] | New Taiwan dollar | Maximum [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							2.00%
Notes Payable, Other Payables [Member] | Secured Debt 7 [Member]
Debt Instrument [Line Items]
Debt							$ 40,000,000
Convertible Debt Issuances [Abstract]
Debt instrument, original term							2 years
Proceeds from Issuance of Other Long-term Debt				$ 47,000,000
Notes Payable, Other Payables [Member] | Secured Debt 7 [Member] | Taipei Interbank Offered Rate TAIBOR [Member]
Convertible Debt Issuances [Abstract]
Margin on variable rate financing (in hundredths)							1.65%
Debt Instrument Variable Reference Rate Period 1							90 days
Notes Payable, Other Payables [Member] | Secured Debt Not Outstanding [Member]
Debt Instrument [Line Items]
Stated interest rate (in thousandths)							2.44%					2.44%
Carrying amount of debt extinguished							$ 159,000,000
Loans Payable [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount							(589,000,000)
Long-term Debt, by Maturity [Abstract]
2016							291,000,000
2017							289,000,000
2018							504,000,000
2019							508,000,000
2020							702,000,000
2021 and thereafter							4,844,000,000
Notes Payable							6,549,000,000
Loans Payable [Member] | Micron Technology, Inc. [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount							(420,000,000)
Long-term Debt, by Maturity [Abstract]
2016							0
2017							0
2018							233,000,000
2019							224,000,000
2020							347,000,000
2021 and thereafter							4,854,000,000
Notes Payable							5,238,000,000
Exchanged [Member] | Convertible Debt [Member] | 2043G convertible senior notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount																			$ 1,030,000,000
Prepayment [Member]
Debt Instrument [Line Items]
Carrying amount of debt extinguished									332,000,000
Prepayment [Member] | Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Carrying amount of debt extinguished							$ 115,000,000
Not Designated as Hedging Instrument [Member] | Convertible notes settlement obligations [Member] | Convertible Debt [Member] | 2031B convertible senior notes [Member]
Debt Instrument [Line Items]
Derivative Liability, Fair Value, Gross Liability									$ 389,000,000

[1] Expected remaining term for amortization of the remaining unamortized discount and debt issuance costs as of September 3, 2015. The expected remaining term of the 2031B Notes was not applicable because the notes were not outstanding as of September 3, 2015. Expected remaining term for capital lease obligations is the weighted-average remaining term.

[2] Weighted-average imputed rate of 3.7% and 4.3% as of September 3, 2015 and August 28, 2014, respectively.

[3] Weighted-average imputed rate of 4.5% and 4.7% as of September 3, 2015 and August 28, 2014, respectively.

[4] If we redeem prior to the applicable date with net cash proceeds of one or more equity offerings, the price is equal to the amount specified above, together with accrued and unpaid interest, subject to a maximum redemption of 35% of the aggregate principal amount of the respective notes being redeemed.

[5] Micron has either the obligation or the option to pay cash for the principal amount due upon conversion for all of its convertible notes. Micron's current intent is to settle in cash the principal amount of all of its convertible notes upon conversion.

[6] Based on our closing share price of $16.59 as of September 3, 2015.

[7] Amount recorded for 2014 included the debt and equity components. The equity component was reclassified to a debt liability as a result of Micron's obligation to settle the conversions of the 2031B Notes in cash.

[8] As holders had elected to convert these notes and we elected to settle the conversions in cash, the net carrying amount for 2014 included the debt component and equity component, which were reclassified to a debt liability as a result of our obligation to settle the conversions of the 2031B Notes in cash, resulting in an aggregate liability of $389 million. The outstanding principal reflects the original principal of the 2031B Notes.

[9] We have either the obligation or the option to pay cash for the principal amount due upon conversion for all of our convertible notes. Since it is our current intent to settle in cash the principal amount of all of our convertible notes upon conversion, the dilutive effect of such notes on earnings per share is computed under the treasury stock method.

[10] Since the closing price of our common stock for at least 20 trading days in the 30 trading day period ending on June 30, 2015 exceeded 130% of the conversion price per share, holders had the right to convert their notes at any time during the calendar quarter ended September 30, 2015. The closing price of our common stock also exceeded the thresholds for the calendar quarter ended September 30, 2015; therefore, these notes are convertible by the holders through December 31, 2015. The 2033 Notes are classified as current because the terms of these notes require us to pay cash for the principal amount of any converted notes.

[11] The terms of our convertible notes give holders the right to require us to repurchase all or a portion of their notes at a date prior to the contractual maturities of the notes at a price equal to the principal amount thereof plus accrued interest.

[12] Holders have the right to convert all or a portion of their notes at a date prior to the contractual maturity if, during any calendar quarter, the closing price of our common stock for at least 20 trading days in the 30 consecutive trading days ending on the last trading day of the preceding calendar quarter is more than 130% of the conversion price. The closing price of our common stock exceeded the thresholds for the calendar quarter ended September 30, 2015 for our 2032 Notes and 2033 Notes; therefore, those notes are convertible by the holders through December 31, 2015.

[13] Since the closing price of Micron's common stock for at least 20 trading days in the 30 trading day period ending on June 30, 2015 exceeded 130% of the initial conversion price per share, holders have the right to convert their notes at any time during the calendar quarter ended September 30, 2015. The closing price of Micron's common stock also exceeded the thresholds for the calendar quarter ended September 30, 2015; therefore, these notes are convertible by the holders through December 31, 2015. The 2033 Notes are classified as current because the terms of these notes require us to pay cash for the principal amount of any converted notes.

[14] The 2043G Notes have an original principal amount of $820 million that accretes up to $917 million through the expected term on November 15, 2028 and $1.03 billion at maturity in 2043. The discount is based on the principal at maturity. See "2043G Notes" below.

[15] See "2043G Notes."

[16] Other notes include the 2014 Notes, 2027 Notes, 2031A Notes, and 2031B Notes.