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Net Income Per Share (Tables) | 12 Months Ended
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Dec. 31, 2015
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):
| Year ended December 31,
| 2015 |  | 2014 |  | 2013
NUMERATOR: |  |  |  |  |
Net income | $ | 2,181 |  |  | $ | 1,136 |  |  | $ | 754 |
Incremental income effect of interest on 5.25% convertible notes | 4 |  |  | 4 |  |  | 3 |
Net income after assumed conversion | $ | 2,185 |  |  | $ | 1,140 |  |  | $ | 757 |
DENOMINATOR: |  |  |  |  |  |  |
Weighted-average shares outstanding, basic | 661 |  |  | 687 |  |  | 710 |
Dilutive effect of Employee stock options and restricted stock units | 2 |  |  | 3 |  |  | 2 |
Dilutive effect of 5.25% convertible notes | 6 |  |  | 6 |  |  | 6 |
Adjusted weighted-average shares outstanding, diluted | 669 |  |  | 696 |  |  | 718 |
NET INCOME PER SHARE: |  |  |  |  |  |  |
Basic | $ | 3.30 |  |  | $ | 1.65 |  |  | $ | 1.06 |
Diluted | $ | 3.27 |  |  | $ | 1.64 |  |  | $ | 1.05 |
Potentially dilutive amounts excluded from calculations: |  |  |  |  |  |  |
Stock options and restricted stock units | — |  |  | — |  |  | 9 |

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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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