XML 73 R59.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Equity - Capped Calls (Details) - Call Option - USD ($) shares in Millions | 1 Months Ended |
--- | --- | ---
Dec. 20, 2017 | Nov. 30, 2017
Subsequent Event |  |
Option Indexed to Issuer's Equity [Line Items] |  |
Treasury shares acquired from settlement of capped calls (in shares) | 5 |
Purchased options | Subsequent Event |  |
Option Indexed to Issuer's Equity [Line Items] |  |
Shares received upon settlement of capped calls | 5 |
Dollar value of shares received upon settlement of capped calls | $ 215,000,000 |
Purchased options | Minimum |  |
Option Indexed to Issuer's Equity [Line Items] |  |
Value at Expiration |  | $ 0
Purchased options | Maximum |  |
Option Indexed to Issuer's Equity [Line Items] |  |
Value at Expiration |  | $ 527,000,000

X
- Definition Upon expiration of an option indexed to issuer's equity, the amount of value that could be received. + References No definition available. + Details
Name: | mu_OptionIndexedtoIssuersEquityPotentialValueatExpiration
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of shares received from settlement of options indexed to issuers equity. + References No definition available. + Details
Name: | mu_OptionIndexedtoIssuersEquitySettlementFairValueofSharesReceived
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Upon share-settlement of options indexed to issuer's equity, the number of shares received. + References No definition available. + Details
Name: | mu_OptionIndexedtoIssuersEquitySettlementSharesReceived
Namespace Prefix: | mu_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_OptionIndexedToIssuersEquityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21463-112644 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_OptionIndexedToIssuersEquityEquityAxis=us-gaap_CallOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PositionAxis=us-gaap_LongMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |