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Immaterial Corrections (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Consolidated Condensed Income Statements [Abstract] |  |  |
Costs of sales | $ 404 | $ 365 |
Gross profit | 173 | 168 |
General and administrative expenses | 53 | 45 |
Operating income (loss) | 37 | (10) |
Income from continuing operations before income tax expense | 35 | (35) |
Income (loss) from continuing operations | 10 | (22) |
Less: Income from discontinued operations | (7) | 143 |
Net income | 3 | 121 |
As Previously Reported with Reclassification for Discontinued Operations [Member] |  |  |
Consolidated Condensed Income Statements [Abstract] |  |  |
Costs of sales |  | 364 |
Gross profit |  | 169 |
General and administrative expenses |  | 48 |
Operating income (loss) |  | (12) |
Income from continuing operations before income tax expense |  | (37) |
Income (loss) from continuing operations |  | (23) |
Less: Income from discontinued operations |  | 147 |
Net income |  | 124 |
Adjustments [Member] |  |  |
Consolidated Condensed Income Statements [Abstract] |  |  |
Costs of sales |  | 1 |
Gross profit |  | (1) |
General and administrative expenses |  | (3) |
Operating income (loss) |  | 2 |
Income from continuing operations before income tax expense |  | 2 |
Income (loss) from continuing operations |  | 1 |
Less: Income from discontinued operations |  | (4) | [1]
Net income |  | (3) |
As Adjusted and with Reclassification for Discontinued Operations [Member] |  |  |
Consolidated Condensed Income Statements [Abstract] |  |  |
Costs of sales |  | 365 |
Gross profit |  | 168 |
General and administrative expenses |  | 45 |
Operating income (loss) |  | (10) |
Income from continuing operations before income tax expense |  | (35) |
Income (loss) from continuing operations |  | (22) |
Less: Income from discontinued operations |  | 143 |
Net income |  | $ 121 |
[1] | Shares issued and outstanding include unvested restricted common stock of 0.2 at March 31, 2012 and 0.5 at December 31, 2011.

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