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Financial Instruments and Risk Management - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified | 1 Months Ended | 3 Months Ended | 12 Months Ended | 9 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Dec. 31, 2010 | Apr. 30, 2010 | Dec. 31, 2010 | Mar. 31, 2010 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009 | Dec. 31, 2012 Contractual customer relationships [Member] | Dec. 31, 2012 Wireless capitalized software [Member] | Dec. 31, 2012 Acquired technology [Member] | Sep. 30, 2012 Wireless [Member] | Dec. 31, 2012 Wireless [Member] | Dec. 31, 2012 Wireless [Member] Contractual customer relationships [Member] | Dec. 31, 2012 Wireless [Member] Wireless capitalized software [Member] | Dec. 31, 2012 Wireless [Member] Acquired technology [Member] | Dec. 31, 2012 Carrollton [Member] | Dec. 31, 2010 Micron Technology Inc. [Member] | Dec. 31, 2010 Micron Technology Inc. [Member]
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of Derivative Instruments Not Designated as a Hedge | $ 874 |  | $ 874 |  | $ 817 | $ 517 | $ 874 |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage for Research and development and Corporate costs of the total forecasted transactions |  |  |  |  | 80.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage for manufacturing costs of forecasted transactions |  |  |  |  | 70.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Realized gain (loss) on Reduction in Cost of Sale |  |  |  |  | 39 | 65 | 37 |  |  |  |  |  |  |  |  |  |  |  |
Realized gain (loss) on Reduction in Operating Expenses |  |  |  |  | 32 | 52 | 42 |  |  |  |  |  |  |  |  |  |  |  |
Notional amount for hedge | 1,850 |  | 1,850 |  | 1,552 | 1,759 | 1,850 |  |  |  |  |  |  |  |  |  |  |  |
Deferred Gain on Derivative Instrument, net of tax |  |  |  |  | 30 | (13) | (2) |  |  |  |  |  |  |  |  |  |  |  |
Deferred Gain on Derivative Instrument, Tax |  |  |  |  | 3 | 9 |  |  |  |  |  |  |  |  |  |  |  |  |
Period of accumulated other comprehensive income (loss) |  |  |  |  |  | 12 months |  |  |  |  |  |  |  |  |  |  |  |  |
Amount Reclassified as Other Income and Expenses, net |  |  |  |  | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Notional share amount of price risk derivatives | 20,056,131 | 5,000,000 | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on financial instruments |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares Sold | 20,000,000 |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16 | 5
Gain (loss) on the sale of derivatives |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4
Contingency premium paid on zero-cost collars |  |  |  |  |  |  | 9 |  |  |  |  |  |  |  |  |  |  |  |
Notional amount to hedge forecasted sales, shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 40,000,000
Cumulative change in fair value of the collars |  |  |  |  |  |  | 27 |  |  |  |  |  |  |  |  |  |  |  |
Disposal of financial instrument |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum outstanding amount per instrument with each Bank , as percentage of total |  |  |  |  |  |  |  | 20.00% |  |  |  |  |  |  |  |  |  |  |
Maximum outstanding percentage of counterparty risk |  |  |  |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |
Percentage of trade account receivable represented by one customer |  |  |  |  | 7.10% | 11.30% |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment charges |  |  |  |  | 1,268 | 4 | 11 |  |  |  |  | 690 | 1,234 |  |  |  | 21 |  |
Impairment on intangible assets |  |  |  |  | $ 312 |  |  |  | $ 261 | $ 45 | $ 6 |  | $ 312 | $ 261 | $ 45 | $ 6 |  |  |

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- Definition Net of tax amount, before reclassification adjustments, of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 17, 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669646-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph c(3) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=20435746&loc=d3e637-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 121 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6441202&loc=d3e80720-113993 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 24 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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