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Intangible Assets | 6 Months Ended
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Mar. 01, 2012
Notes to Financial Statements [Abstract] |
Intangible Assets | Intangible Assets
As of |  | March 1, 2012 |  | September 1, 2011
|  | Gross Amount |  | Accumulated Amortization |  | Gross Amount |  | Accumulated Amortization
Product and process technology |  | $ | 590 |  |  | $ | (228 | ) |  | $ | 571 |  |  | $ | (203 | )
Customer relationships |  | 127 |  |  | (90 | ) |  | 127 |  |  | (82 | )
Other |  | 1 |  |  | — |  |  | 1 |  |  | — |
|  | $ | 718 |  |  | $ | (318 | ) |  | $ | 699 |  |  | $ | (285 | )
During the first six months of 2012 and 2011, we capitalized $30 million and $24 million, respectively, for product and process technology with weighted-average useful lives of 9 years. Amortization expense for intangible assets was $22 million and $44 million for the second quarter and first six months of 2012 and $18 million and $37 million for the second quarter and first six months of 2011, respectively. Annual amortization expense is estimated to be $88 million for 2012, $83 million for 2013, $75 million for 2014, $57 million for 2015 and $49 million for 2016.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16373-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 44, 45, 46 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275 + Details
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