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Equity Method Investments (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 3 Months Ended | 3 Months Ended | 3 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Mar. 31, 2012
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Apr. 02, 2011
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Dec. 31, 2011
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Mar. 31, 2012
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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Apr. 02, 2011
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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Dec. 31, 2011
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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Jun. 30, 2012
Proceeds from sale of certain assets of IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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Jun. 30, 2012
Amount provided to Micron [Member]
|
Jun. 30, 2012
IM Flash Technologies, LLC [Member]
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Mar. 31, 2012
IM Flash Technologies, LLC [Member]
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Mar. 31, 2012
IM Flash Singapore, LLP [Member]
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Mar. 31, 2012
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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Apr. 02, 2011
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
|
Dec. 31, 2011
IM Flash Technologies, LLC and IM Flash Singapore, LLP [Member]
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| Equity Method Investments Textual Details [Abstract] | ||||||||||||||
| Ownership Percentage | 49.00% | 18.00% | ||||||||||||
| Investments in non-marketable equity investments | $ 116 | $ 147 | ||||||||||||
| Carrying Value | 1,602 | 1,669 | 1,300 | 1,300 | ||||||||||
| Return of equity method investments | 67 | 24 | 67 | 24 | ||||||||||
| Percentage of purchase commitment of production output and production-related services | 49.00% | |||||||||||||
| Income (Loss) from Equity Method Investments | (19) | (62) | ||||||||||||
| Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal | 0 | 164 | ||||||||||||
| Subsequent Event, Amount | 600 | 365 | ||||||||||||
| Variable Interest Entity, Reporting Entity Involvement, Known Maximum Loss Exposure, Amount | 656 | |||||||||||||
| Related Party Transactions [Line Items] | ||||||||||||||
| Related Party Transaction, Amounts of Transaction | 240 | 220 | ||||||||||||
| Due to Related Parties | 95 | 125 | ||||||||||||
| Cost Method Investments Textual Details [Abstract] | ||||||||||||||
| Cost-method Investments, Aggregate Carrying Amount | $ 1,116 | $ 1,129 | ||||||||||||