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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Dec. 31, 2016
Accounting Policies [Abstract] |
Computation of Basic and Diluted Earnings Per Share | The following table shows the computation of basic and diluted earnings per share for the three months ended December 31, 2016 and December 26, 2015 (net income in millions and shares in thousands):
| Three Months Ended
| December 31, 2016 |  | December 26, 2015
Numerator: |  |  |
Net income | $ | 17,891 |  |  | $ | 18,361 |
Denominator: |  |  |
Weighted-average shares outstanding | 5,298,661 |  |  | 5,558,930 |
Effect of dilutive securities | 29,334 |  |  | 35,197 |
Weighted-average diluted shares | 5,327,995 |  |  | 5,594,127 |
Basic earnings per share | $ | 3.38 |  |  | $ | 3.30 |
Diluted earnings per share | $ | 3.36 |  |  | $ | 3.28 |

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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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