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Net Income Per Share (Notes) | 12 Months Ended
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Dec. 31, 2019
Earnings Per Share [Abstract] |
Net Income (Loss) Per Share | Net Income Per Share The following table sets forth the computation of Net Income Per Share for the years ended December 31, 2019, 2018 and 2017 (in thousands, except per share data):
| 2019 |  | 2018 |  | 2017
Numerator for Basic and Diluted Earnings per Share - |  |  |  |  |
Net Income | $ | 2,734,910 |  |  | $ | 3,419,040 |  |  | $ | 2,582,579 |
Denominator for Basic Earnings per Share - |  |  |  |  |  |  |  |
Weighted Average Shares | 577,670 |  |  | 576,578 |  |  | 574,620 |
Potential Dilutive Common Shares - |  |  |  |  |  |  |  |
Stock Options/SARs | 258 |  |  | 1,137 |  |  | 1,466 |
Restricted Stock/Units and Performance Units | 2,849 |  |  | 2,726 |  |  | 2,607 |
Denominator for Diluted Earnings per Share - |  |  |  |  |  |  |  |
Adjusted Diluted Weighted Average Shares | 580,777 |  |  | 580,441 |  |  | 578,693 |
Net Income Per Share |  |  |  |  |  |  |  |
Basic | $ | 4.73 |  |  | $ | 5.93 |  |  | $ | 4.49 |
Diluted | $ | 4.71 |  |  | $ | 5.89 |  |  | $ | 4.46 |
The diluted earnings per share calculation excludes stock options, SARs, restricted stock and units and performance units that were anti-dilutive. Shares underlying the excluded stock options and SARs totaled 6.1 million, 0.6 million and 2.6 million for the years ended December 31, 2019, 2018 and 2017, respectively.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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