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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Sep. 29, 2018
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 2018, 2017 and 2016 (net income in millions and shares in thousands):
| 2018 |  | 2017 |  | 2016
Numerator: |  |  |  |  |
Net income | $ | 59,531 |  |  | $ | 48,351 |  |  | $ | 45,687 |
Denominator: |  |  |  |  |
Weighted-average basic shares outstanding | 4,955,377 |  |  | 5,217,242 |  |  | 5,470,820 |
Effect of dilutive securities | 44,732 |  |  | 34,450 |  |  | 29,461 |
Weighted-average diluted shares | 5,000,109 |  |  | 5,251,692 |  |  | 5,500,281 |
Basic earnings per share | $ | 12.01 |  |  | $ | 9.27 |  |  | $ | 8.35 |
Diluted earnings per share | $ | 11.91 |  |  | $ | 9.21 |  |  | $ | 8.31 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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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