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Stock-based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Schedule of Stock Options Roll Forward | A summary of stock option award activity as of and for the three months ended March 31, 2024 is presented below.
Stock Options |  | Awards (in millions) |  | Weighted Average Exercise Price |  | Aggregate Intrinsic Value (in millions) |  | Weighted Average Remaining Contractual Life (years)
Outstanding at January 1, 2024 |  | 0.5 |  |  | $ | 28.33 |  |  |  |  |
Granted |  | — |  |  | $ | — |  |  |  |  |
Exercised |  | (0.1) |  |  | $ | 27.00 |  |  |  |  |
Forfeited / Expired (1) |  | — |  |  | $ | 32.50 |  |  |  |  |
Outstanding at March 31, 2024 |  | 0.4 |  |  | $ | 28.56 |  |  |  |  |
Vested and expected to vest at March 31, 2024 |  | 0.4 |  |  | $ | 28.56 |  |  | $ | 2 |  |  | 3.64
Exercisable at March 31, 2024 |  | 0.4 |  |  | $ | 28.56 |  |  | $ | 2 |  |  | 3.64
(1) Activity during the three months ended March 31, 2024 rounds to zero.
Schedule of Restricted Stock Units and Restricted Stock Awards Roll Forward |
Restricted Stock Units |  | Units (in millions) |  | Weighted Average Fair Value
Outstanding at January 1, 2024 |  | 1.3 |  |  | $ | 28.71 |
Granted |  | 0.5 |  |  | $ | 32.48 |
Vested |  | (0.4) |  |  | $ | 29.06 |
Forfeited |  | (0.1) |  |  | $ | 29.45 |
Outstanding at March 31, 2024 |  | 1.3 |  |  | $ | 30.06 |
Schedule of Performance Stock Roll Forward |
Performance Share Units |  | Units (in millions) |  | Weighted Average Fair Value
Outstanding at January 1, 2024 |  | 0.8 |  |  | $ | 33.20 |
Granted |  | 0.3 |  |  | $ | 38.52 |
Vested (1) |  | — |  |  | $ | 29.53 |
Forfeited |  | (0.2) |  |  | $ | 30.50 |
Outstanding at March 31, 2024 |  | 0.9 |  |  | $ | 35.79 |
(1) Activity during the three months ended March 31, 2024 rounds to zero.

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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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- Definition Tabular disclosure of the change in stock options. + References No definition available. + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for outstanding performance shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Subparagraph (c) -Paragraph 2 -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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