Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Deficit - Additional Information (Detail)

v3.22.2.2
Shareholders' Deficit - Additional Information (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
1 Months Ended 3 Months Ended 9 Months Ended
Feb. 09, 2021
Aug. 31, 2022
Jan. 31, 2021
Sep. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Feb. 08, 2021
Stockholders Equity [Line Items]                    
Share repurchase program authorized amount $ 1,500.0       $ 1,500.0          
Share repurchase program, remaining authorized capacity       $ 985.5     $ 985.5     $ 7.9
Share repurchase program expiration date Oct. 30, 2023       Feb. 09, 2024          
Shares repurchases, value       $ 0.1   $ 162.7 $ 146.6 $ 909.2    
Repurchase of common stock, shares               18.2    
Treasury stock shares, at cost       0.0     0.0   10.0  
Treasury Stock, Shares, Retired   10.0         10.0      
Decrease in value of treasury stock       $ 0.0     $ 0.0   $ (328.9)  
Repurchase of common stock, shares       0.0   3.5 4.1 18.8    
Repurchase of common stock, value               $ 881.1    
Repurchase of common stock Per share               $ 48.43    
Shares repurchases, inclusive of transaction costs             $ 131.8 $ 881.1    
Withheld for tax purpose for share-based compensation plans             14.8 28.1    
Other comprehensive income (loss) before foreign currency translation adjustments reclassifications, tax expense (benefit)       $ 0.6   $ 0.6 $ 0.2 $ 0.9    
Open Market Repurchase Plan [Member] | Common Stock [Member]                    
Stockholders Equity [Line Items]                    
Share price       $ 35.73   $ 49.27 $ 35.73 $ 49.27    
Repurchase of common stock, shares             3.7      
Repurchase of common stock, shares               5.7    
Repurchase of common stock, value             $ 131.8 $ 281.1    
Icahn Parties [Member] | Common Stock [Member]                    
Stockholders Equity [Line Items]                    
Share price     $ 48.05              
Repurchase of common stock, shares     12.5              
Repurchase of common stock, value     $ 600.0