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Per Share Data (Tables) | 6 Months Ended
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Jun. 30, 2017
Earnings Per Share [Abstract] |
Diluted EPS Calculation Continuing Operations |
Basic and Diluted EPS Calculation | Three Months Ended June 30, |  | Six Months Ended June 30,
(In millions, except per share amounts) | 2017 |  |  | 2016 |  |  | 2017 |  |  | 2016 |
Basic weighted average common shares outstanding | 514 |  |  | 521 |  |  | 514 |  |  | 521 |
Dilutive effect of potentially issuable common shares | 6 |  |  | 4 |  |  | 7 |  |  | 5 |
Diluted weighted average common shares outstanding | 520 |  |  | 525 |  |  | 521 |  |  | 526 |
Average stock price used to calculate common stock equivalents | $ | 75.41 |  |  | $ | 64.17 |  |  | $ | 73.36 |  |  | $ | 60.01 |

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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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