v3.26.1
Earnings per Share (EPS) and Common Stock - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Mar. 17, 2026
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Oct. 01, 2026
Sep. 30, 2025
Oct. 01, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Anti-dilutive shares   800,000   400,000 100,000 0      
Common stock, shares authorized   500,000,000     500,000,000     500,000,000  
Stock repurchased during period (in shares)   4,300,000   400,000 7,000,000 1,300,000      
Stock repurchased during period, value   $ 525.0   $ 75.0 $ 975.0 $ 225.0      
Excise taxes related to share repurchases   1.1     1.1        
Accelerated Share Repurchase Agreement [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Stock authorized to repurchase $ 375.0                
Stock repurchased during period (in shares) 1,900,000                
Stock repurchased during period, value $ 300.0                
Share repurchase program holdback     $ 75.0   75.0        
Additional shares issued   $ 0.8     $ 0.8        
Percentage of shares repurchased to total share authorized 80.00%                
Maximum [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Common stock, shares authorized   500,000,000     500,000,000        
Stock authorized to repurchase                 $ 2,000.0
Maximum [Member] | Forecast [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Stock authorized to repurchase             $ 2,000.0    
Weighted average price | Accelerated Share Repurchase Agreement [Member]                  
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]                  
Stock repurchased during period, value         $ 375.0