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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2012
Summarized Quarterly Results | Summarized quarterly results, were as follows (in millions, except per share data):
|  | First Quarter |  |  | Second Quarter |  |  | Third Quarter |  |  | Fourth Quarter |
Year ended December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 4,303 |  |  | $ | 4,734 |  |  | $ | 5,319 |  |  | $ | 5,685 |
Gross profit |  |  | 1,267 |  |  |  | 1,306 |  |  |  | 1,371 |  |  |  | 1,395 |
Net income attributable to Company |  |  | 606 |  |  |  | 605 |  |  |  | 612 |  |  |  | 668 |
Net income attributable to Company per basic share |  |  | 1.43 |  |  |  | 1.42 |  |  |  | 1.44 |  |  |  | 1.57 |
Net income attributable to Company per diluted share |  |  | 1.42 |  |  |  | 1.42 |  |  |  | 1.43 |  |  |  | 1.56 |
Cash dividends per share |  |  | 0.12 |  |  |  | 0.12 |  |  |  | 0.12 |  |  |  | 0.13 |
Year ended December 31, 2011 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 3,146 |  |  | $ | 3,513 |  |  | $ | 3,740 |  |  | $ | 4,259 |
Gross profit |  |  | 975 |  |  |  | 1,083 |  |  |  | 1,164 |  |  |  | 1,275 |
Net income attributable to Company |  |  | 407 |  |  |  | 481 |  |  |  | 532 |  |  |  | 574 |
Net income attributable to Company per basic share |  |  | 0.97 |  |  |  | 1.14 |  |  |  | 1.26 |  |  |  | 1.36 |
Net income attributable to Company per diluted share |  |  | 0.96 |  |  |  | 1.13 |  |  |  | 1.25 |  |  |  | 1.35 |
Cash dividends per share |  |  | 0.11 |  |  |  | 0.11 |  |  |  | 0.11 |  |  |  | 0.12 |

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- Definition Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306 + Details
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