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Earnings Per Share (Tables) | 12 Months Ended
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Jan. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share Computation | The following table provides shares utilized for the calculation of basic and diluted earnings per share for 2014, 2013 and 2012:
| 2014 |  | 2013 |  | 2012
| (in millions)
Weighted-average Common Shares: |  |  |  |  |
Issued Shares | 309 |  |  | 306 |  |  | 302 |
Treasury Shares | (17 | ) |  | (16 | ) |  | (12 | )
Basic Shares | 292 |  |  | 290 |  |  | 290 |
Effect of Dilutive Options and Restricted Stock | 6 |  |  | 6 |  |  | 7 |
Diluted Shares | 298 |  |  | 296 |  |  | 297 |
Anti-dilutive Options and Awards (a) | 1 |  |  | 1 |  |  | 1 |
________________
(a) | These options and awards were excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.

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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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