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Earnings Per Share | 12 Months Ended
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Jan. 31, 2015
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Earnings per basic share are computed based on the weighted-average number of outstanding common shares. Earnings per diluted share include the weighted-average effect of dilutive options and restricted stock on the weighted-average shares outstanding. 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 |
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(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 The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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