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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Mar. 30, 2019
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- and six-month periods ended March 30, 2019 and March 31, 2018 (net income in millions and shares in thousands):
| Three Months Ended |  | Six Months Ended
| March 30, 2019 |  | March 31, 2018 |  | March 30, 2019 |  | March 31, 2018
Numerator: |  |  |  |  |  |  |
Net income | $ | 11,561 |  |  | $ | 13,822 |  |  | $ | 31,526 |  |  | $ | 33,887 |
Denominator: |  |  |  |  |  |  |
Weighted-average basic shares outstanding | 4,674,071 |  |  | 5,024,877 |  |  | 4,704,945 |  |  | 5,068,877 |
Effect of dilutive securities | 26,575 |  |  | 43,616 |  |  | 32,004 |  |  | 44,263 |
Weighted-average diluted shares | 4,700,646 |  |  | 5,068,493 |  |  | 4,736,949 |  |  | 5,113,140 |
Basic earnings per share | $ | 2.47 |  |  | $ | 2.75 |  |  | $ | 6.70 |  |  | $ | 6.69 |
Diluted earnings per share | $ | 2.46 |  |  | $ | 2.73 |  |  | $ | 6.66 |  |  | $ | 6.63 |

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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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