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Shareholders' Deficit - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Aug. 31, 2022 | Jan. 31, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Feb. 09, 2021
Stockholders Equity [Line Items] |  |  |  |  |  |
Repurchase of common stock, shares |  |  |  |  | 20,400,000 |
Common shares, shares outstanding |  |  | 99,200,000 | 97,900,000 | 100,800,000 |
Preference shares authorized |  |  | 7,500,000 |  |  |
Preference shares par value |  |  | $ 0.002 |  |  |
Share repurchase program authorized amount |  |  |  |  |  | $ 1,500.0
Share repurchase program, remaining authorized capacity |  |  | $ 985.5 |  |  |
Share repurchase program expiration date |  |  | Feb. 09, 2024 |  |  |
Shares repurchases, value |  |  | $ 11.0 | $ 146.7 | $ 1,011.3 |
Share repurchases |  |  | $ 11.0 | $ 146.7 | $ 1,011.3 |
Repurchase of common stock, shares |  |  | 600,000 | 4,100,000 | 21,000,000 |
Treasury stock shares, at cost |  |  |  |  | 10,000,000 |
Treasury Stock, Shares, Retired | 10,000,000 |  | 10,000,000 |  |  |
Decrease in value of treasury stock |  |  |  |  | $ (328.9) |
Shares repurchases, inclusive of transaction costs |  |  | $ 0.0 | $ 131.8 | 982.7 |
Withheld for tax purpose for share-based compensation plans |  |  | 1.0 | 14.9 | 28.6 |
Repurchase of common stock, value |  |  | 11.0 | 146.7 | 1,011.3 |
Other comprehensive income (loss) before foreign currency translation adjustments reclassifications, tax expense (benefit) |  |  | 1.3 | 1.1 | 0.2 |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, Tax |  |  | 0.2 |  |  |
Common Stock[Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Repurchase of common stock, value |  |  | $ 0.0 | $ 0.0 | $ 0.0 |
Open market purchases [Member] | Common Stock[Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Repurchase of common stock, shares |  |  | 0 | 3,700,000 |  |
Share price |  |  | $ 35.73 |  | $ 48.17 |
Repurchase of common stock, shares |  |  |  |  | 7,900,000 |
Repurchase of common stock, value |  |  | $ 131.8 |  | $ 382.7 |
Open market purchases [Member] | Indirect wholly owned subsidiary [Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Repurchase of common stock Per share |  |  |  |  | $ 48.10 |
Repurchase of common stock, value |  |  |  |  | $ 982.7 |
Icahn Parties [Member] | Common Stock[Member] |  |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |  |
Share price |  | $ 48.05 |  |  |  |
Repurchase of common stock, shares |  | 12,500,000 |  |  |  |
Repurchase of common stock, value |  | $ 600.0 |  |  |  |

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