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Net Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2018
Earnings Per Share [Abstract] |
Schedule Of Earnings Per Share Basic And Diluted | The following table sets forth the computation of basic and diluted net income per share (in millions, except per share amounts):
| Three months ended September 30, |  | Nine months ended September 30,
| 2018 |  | 2017 |  | 2018 |  | 2017
NUMERATOR: |  |  |  |  |  |  |
Net income | $ | 615 |  |  | $ | 528 |  |  | $ | 1,811 |  |  | $ | 1,610 |
DENOMINATOR: |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares outstanding, basic | 569 |  |  | 597 |  |  | 578 |  |  | 605 |
Dilutive effect of Employee stock options and restricted stock units | — |  |  | 1 |  |  | 1 |  |  | 1 |
Adjusted weighted-average shares outstanding, diluted | 569 |  |  | 598 |  |  | 579 |  |  | 606 |
NET INCOME PER SHARE: |  |  |  |  |  |  |  |  |  |  |
Basic | $ | 1.08 |  |  | $ | 0.88 |  |  | $ | 3.13 |  |  | $ | 2.66 |
Diluted | $ | 1.08 |  |  | $ | 0.88 |  |  | $ | 3.13 |  |  | $ | 2.66 |

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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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