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Net Income Attributable to Company Per Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Computation of Weighted Average Basic and Diluted Shares Outstanding | The following table sets forth the computation of weighted average basic and diluted shares outstanding (in millions, except per share data):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to Company |  | $ | 531 |  |  | $ | 605 |  |  | $ | 1,033 |  |  | $ | 1,211 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic—weighted average common shares outstanding |  |  | 426 |  |  |  | 425 |  |  |  | 426 |  |  |  | 424 |
Dilutive effect of employee stock options and other unvested stock awards |  |  | 2 |  |  |  | 2 |  |  |  | 2 |  |  |  | 2 |
Diluted outstanding shares |  |  | 428 |  |  |  | 427 |  |  |  | 428 |  |  |  | 426 |
Net income attributable to Company per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.25 |  |  | $ | 1.42 |  |  | $ | 2.42 |  |  | $ | 2.85 |
Diluted |  | $ | 1.24 |  |  | $ | 1.42 |  |  | $ | 2.41 |  |  | $ | 2.84 |
Cash dividends per share |  | $ | 0.26 |  |  | $ | 0.12 |  |  | $ | 0.39 |  |  | $ | 0.24 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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