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Acquisitions And Divestitures (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  |  | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended |  | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  |  | 1 Months Ended |  |  | 1 Months Ended |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  | 1 Months Ended
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Dec. 31, 2011 | Dec. 31, 2009 | Dec. 31, 2010 | Jun. 30, 2009 | Jul. 31, 2010 Traco [Member] | Dec. 31, 2011 Traco [Member] | Dec. 31, 2010 Traco [Member] | Dec. 31, 2010 Transportation Products Europe [Member] | Mar. 31, 2009 Elkem Aluminium [Member] | Dec. 31, 2009 Elkem Aluminium [Member] MT | Dec. 31, 2008 Elkem Aluminium [Member] | Dec. 31, 2011 Transdigm Group Inc [Member] | Dec. 31, 2010 Transdigm Group Inc [Member] | Dec. 31, 2011 Wire Harness And Electrical Portion Of The EES Business [Member] | Dec. 31, 2010 Wire Harness And Electrical Portion Of The EES Business [Member] | Dec. 31, 2009 Wire Harness And Electrical Portion Of The EES Business [Member] | Dec. 31, 2008 Wire Harness And Electrical Portion Of The EES Business [Member] | Jun. 30, 2009 Wire Harness And Electrical Portion Of The EES Business [Member] | Dec. 31, 2009 Electronics Portion Of The EES Business [Member] | Dec. 31, 2010 Electronics Portion Of The EES Business [Member] | Dec. 31, 2009 Electronics Portion Of The EES Business [Member] | Dec. 31, 2008 Electronics Portion Of The EES Business [Member] | Dec. 31, 2010 Orkla ASA [Member] | Mar. 31, 2009 Orkla ASA [Member] | Mar. 31, 2009 Sapa AB [Member] | Dec. 31, 2008 Sapa AB [Member] | Dec. 31, 2009 Mosjoen [Member] | Mar. 31, 2009 Primary Metals Segment [Member] | Jul. 31, 2009 Suralco [Member] | Jul. 31, 2009 BHP [Member] MT | Jul. 31, 2009 Suriname [Member] | Dec. 31, 2009 Global Foil Business [Member] | Dec. 31, 2009 Sabinigo, Spain And Shanghai, China [Member] | Dec. 31, 2008 Sabinigo, Spain And Shanghai, China [Member] | Jun. 30, 2009 Transaction Price [Member] | Jun. 30, 2009 Working Capital And Other Adjustments [Member] | Mar. 31, 2009 Primary Metals [Member] | Jul. 31, 2009 Alumina [Member] | Mar. 31, 2009 Corporate [Member]
Significant Acquisitions and Disposals [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business acquisition cost | $ 240 |  |  | $ 3 |  |  | $ 77 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash acquired and post-closing adjustments resulted in net purchase price | 239 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of employees |  | 700 |  |  | 650 |  |  | 360 |  |  |  | 400 |  |  |  |  | 16,200 |  |  |  |  | 450 |  |  |  |  |  |  |  |  |  |  | 460 |  |  |  |  |  |
Sales generated prior year before acquisition |  |  |  |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of goodwill recorded | 154 |  | 48 |  |  |  | 28 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of goodwill is estimated to be deductible for income tax purposes | 60 |  |  |  |  | 24 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount of reduction in the initial goodwill amount |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional amount to settle working capital |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from divestiture of businesses |  |  |  |  |  |  |  | 14 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |  |
Gain (loss) from divestiture |  |  |  |  |  |  |  | 5 |  |  |  |  |  | (3) | (6) | (129) |  |  | (9) | 2 | (9) |  |  |  |  |  |  |  |  |  |  |  | (1) |  |  |  |  |  |
Gain (loss) from divestiture, pretax |  |  |  |  |  |  |  | 5 |  |  |  |  |  | (5) | (9) | (168) |  |  | (13) | 3 | (13) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales generated in last annual period prior to divestiture |  |  |  |  |  |  |  | 78 |  |  |  |  | 61 |  |  |  | 1,114 |  |  |  |  | 104 |  |  |  |  |  |  |  |  |  |  |  | 169 |  |  |  |  |
Equity stake ownership percentage | 50.00% |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  | 82.00% |  | 55.00% | 45.00% |  |  |  |  |  |  |  |  |
Existing stake reflected as equity income percentage |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-cash exchange of stake |  |  |  |  |  |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45.45% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity method investment, carrying value | 1,524 |  | 1,244 |  |  |  |  |  |  |  | 435 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 475 |  |  |  |  |  |  |  |  |  |  |  |  |
Total output of refinery |  |  |  |  |  |  |  |  |  | 282,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain/loss on exchange transaction |  |  |  |  |  |  |  |  | 188 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 32 |  |  | 156 |  | 92 |  |  |  |  |  |  | 156 |  | 32
Gain/loss on exchange transaction, after-tax |  |  |  |  |  |  |  |  | 133 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 112 |  | 36 |  |  |  |  |  |  |  | 60 | 21
Cash |  |  |  |  |  |  |  |  | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 97 |  |  |  |  |  |  |  |  |
Percentage of operations reflected in segment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |  |  |  |  |
Additional output of refinery |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 993,000 |  |  |  |  |  |  |  |  |
Total refinery capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,207,000 |  |  |  |  |  |  |  |  |
Volume of output from refinery, curtailed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 870,000 |  |  |  |  |  |  |  |  |
Cost paid for acquisition of business | 241 | 3 | 138 | 200 |  |  |  |  |  |  |  |  |  |  |  |  |  | 200 | 4 |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  | 175 | 25 |  |  |
Number of countries in which company operates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13 |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional contingent consideration payable | $ 50 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 16 -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 -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585 + Details
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