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Net Income Per Share (Tables) | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Schedule of Denominators for The Computation of Basic and Diluted Earnings Per Share | The following table sets forth the calculation of basic and diluted net income per share:
| Year Ended December 31,
| 2023 |  | 2022 |  | 2021
| (In millions, except net income per share)
Numerator: |  |  |  |  |
Net income | $ | 1,091 |  |  | $ | 792 |  |  | $ | 659 |
Denominator: |  |  |  |  |
Shares outstanding at the beginning of the period | 57.4 |  |  | 57.9 |  |  | 58.0 |
Weighted-average number of shares issued: |  |  |  |  |
Stock purchases | — |  |  | (0.5) |  |  | (0.5) |
Stock-based compensation | 0.3 |  |  | 0.4 |  |  | 0.3 |
Denominator for basic net income per share | 57.7 |  |  | 57.8 |  |  | 57.8 |
Effect of dilutive securities: (1) |  |  |  |  |
Stock-based compensation | 0.4 |  |  | 0.7 |  |  | 0.8 |
Denominator for diluted net income per share | 58.1 |  |  | 58.5 |  |  | 58.6 |
Net income per share - Basic (2) | $ | 18.91 |  |  | $ | 13.72 |  |  | $ | 11.40 |
Net income per share - Diluted (2) | $ | 18.77 |  |  | $ | 13.55 |  |  | $ | 11.25 |
_______________________________ (1) The dilutive effect of all potentially dilutive common shares is calculated using the treasury stock method. Certain potentially dilutive common shares issuable are not included in the computation of diluted net income per share because to do so would have been anti-dilutive. (2) Source data for calculations in thousands.

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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/2009/role/commonPracticeRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482662/260-10-50-1 + Details
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