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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Schedule of Computation of Earnings Per Share | Earnings per share (in millions, except share data):
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Basic: |  |  |  |  |
Net income | $ | 837 |  |  | $ | 504 |  |  | $ | 544 |
Weighted-average shares outstanding | 53,446,399 |  |  | 53,441,375 |  |  | 53,991,249 |
Basic earnings per share | $ | 15.66 |  |  | $ | 9.43 |  |  | $ | 10.08 |
Diluted: |  |  |  |  |
Net income | $ | 837 |  |  | $ | 504 |  |  | $ | 544 |
Weighted-average shares outstanding | 53,446,399 |  |  | 53,441,375 |  |  | 53,991,249 |
Dilutive shares | 456,031 |  |  | 471,870 |  |  | 603,168 |
Diluted weighted-average shares outstanding | 53,902,430 |  |  | 53,913,245 |  |  | 54,594,417 |
Diluted earnings per share | $ | 15.52 |  |  | $ | 9.35 |  |  | $ | 9.97 |

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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