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Equity-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2023
Share-Based Payment Arrangement, Disclosure [Abstract] |
Schedule Equity-Based Compensation Expense | Equity-based compensation expense, which is recorded in Selling and administrative expenses in the Consolidated Statements of Operations was as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Equity-based compensation expense |  | $ | 93.7 |  |  | $ | 91.1 |  |  | $ | 72.6 |
Income tax benefit(1) |  | (17.3) |  |  | (15.5) |  |  | (12.2) |
Equity-based compensation expense, net of tax |  | $ | 76.4 |  |  | $ | 75.6 |  |  | $ | 60.4 |
(1)Represents equity-based compensation tax expense at the statutory tax rates. Excess tax benefits associated with equity awards are excluded from this disclosure and separately disclosed in Note 10 (Income Taxes).
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions | The weighted-average assumptions used to value the stock options granted were as follows:
|  | Year Ended December 31,
|  | 2023 |  | 2022 |  | 2021
Weighted average grant date fair value |  | $ | 64.77 |  |  | $ | 43.20 |  |  | $ | 40.83 |
Expected volatility (1) |  | 29.94 | % |  | 27.50 | % |  | 30.00 | %
Risk-free rate (2) |  | 3.80 | % |  | 1.94 | % |  | 0.93 | %
Expected dividend yield |  | 1.24 | % |  | 1.17 | % |  | 1.03 | %
Expected term (in years) (3) |  | 5.5 |  | 6.0 |  | 5.6
(1)Based on a weighting of the historical volatility and implied volatility. (2)Based on a composite US Treasury rate. (3)Based on contractual term length and on historical experience of both exercised and unexercised options.
Schedule of Stock Options Roll Forward | Stock option activity for the year ended December 31, 2023 was as follows:
Options |  | Number of Options |  | Weighted-Average Exercise Price |  | Weighted-Average Remaining Contractual Term (years) |  | Aggregate Intrinsic Value
Outstanding at January 1, 2023 |  | 3,499,301 |  |  | $ | 104.23 |  |  |  |  |
Granted |  | 460,767 |  |  | 212.08 |  |  |  |  |
Forfeited/Expired |  | (54,584) |  |  | 179.15 |  |  |  |  |
Exercised(1) |  | (714,538) |  |  | 69.06 |  |  |  |  |
Outstanding at December 31, 2023 |  | 3,190,946 |  |  | 126.40 |  |  | 5.96 |  | $ | 322.0 |
Vested and exercisable at December 31, 2023 |  | 2,185,919 |  |  | $ | 99.35 |  |  | 4.97 |  | $ | 279.7 |
Expected to vest after December 31, 2023 |  | 993,307 |  |  | $ | 185.15 |  |  | 8.11 |  | $ | 41.9 |
(1)The total intrinsic value of stock options exercised during the years ended December 31, 2023, 2022 and 2021 was $97 million, $40 million and $117 million, respectively.
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity | RSU activity for the year ended December 31, 2023 was as follows:
|  | Number of Units |  | Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2023 |  | 432,060 |  |  | $ | 166.92 |
Granted (1) |  | 172,048 |  |  | 189.30 |
Vested (2) |  | (175,795) |  |  | 154.02 |
Forfeited |  | (29,700) |  |  | 172.49 |
Non-vested at December 31, 2023 |  | 398,613 |  |  | 181.85 |
(1)The weighted-average grant date fair value of RSUs granted during the years ended December 31, 2023, 2022 and 2021 was $189.30, $169.11 and $172.96, respectively. (2)The aggregate fair value of RSUs that vested during the years ended December 31, 2023, 2022 and 2021 was $27 million, $16 million and $2 million, respectively.
Schedule of Nonvested Performance-based Units Activity | PSU activity for the year ended December 31, 2023 was as follows:
|  | Number of Units |  | Weighted-Average Grant-Date Fair Value
Non-vested at January 1, 2023 |  | 444,233 |  |  | $ | 165.11 |
Granted (1) |  | 147,425 |  |  | 210.30 |
Attainment adjustment (2) |  | 109,462 |  |  | 95.17 |
Vested (3) |  | (275,334) |  |  | 125.60 |
Forfeited |  | (30,904) |  |  | 182.82 |
Non-vested at December 31, 2023 |  | 394,882 |  |  | 188.76 |
(1)The weighted-average grant date fair value of PSUs granted during the years ended December 31, 2023, 2022 and 2021 was $210.30, $176.14 and $154.37, respectively. (2)During the year ended December 31, 2023, the PSUs that vested at December 31, 2022 were adjusted to reflect final attainment. (3)The aggregate fair value of PSUs that vested during the years ended December 31, 2023, 2022 and 2021 was $35 million, $28 million and $28 million, respectively.

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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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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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