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Discontinued Operations And Held For Sale Businesses (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2012 | Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2011
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
(Gain) loss on disposal and impairment write-down - discontinued operations |  |  | $ 131 | $ 0
Discontinued Operations Income Loss |  |  |  |
Revenue | 10 | 168 | 47 | 365
Income (loss) from operations of discontinued businesses | (1) | (12) | 2 | (22)
Income tax (expense) benefit | (3) | 3 | (5) | 6
Income (loss) from operations of discontinued businesses | (4) | (9) | (3) | (16)
Net gain/(loss) on sale and impairments of discontinued operations, net of tax | 75 | 0 | 70 | 0
Red Oak [Member] |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Divestiture Of Ownership In Subsidiary Percent | 100.00% |  | 100.00% |
Sales proceeds, plants |  |  | 143 |
(Gain) loss on disposal and impairment write-down - discontinued operations |  |  | 65 |
Ironwood [Member] |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |
Divestiture Of Ownership In Subsidiary Percent | 100.00% |  | 100.00% |
Sales proceeds, plants |  |  | 84 |
(Gain) loss on disposal and impairment write-down - discontinued operations |  |  | $ 71 |

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- Definition Pretax gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6892542&loc=d3e957-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 43 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 Statement of Financial Accounting Standard (FAS) -Number 144 -Paragraph 47 -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. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760 + Details
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