v3.26.1
Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Millions
3 Months Ended
Jul. 31, 2026
USD ($)
$ / shares
shares
Jul. 31, 2026
USD ($)
$ / shares
shares
Jul. 31, 2025
USD ($)
Apr. 30, 2026
$ / shares
shares
Apr. 30, 2026
£ / shares
shares
Mar. 02, 2026
USD ($)
Apr. 30, 2025
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock, par value (in dollars per share) | (per share) $ 0.01 $ 0.01   $ 0.01 £ 0.10   $ 0.18
Common stock, shares authorized (in shares) 414,502,814 414,502,814   413,965,587 413,965,587    
Share repurchase program, amount | $           $ 1,500  
Repurchase of common stock | $   $ 56 $ 350        
Sunbelt Rentals Common Stock              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Common stock, shares authorized (in shares)       2,500,000,000 2,500,000,000    
Preferred stock, shares authorized (in shares)       25,000,000 25,000,000    
Preferred stock, par value (in dollars per share) | $ / shares       $ 0.01      
Preferred stock, shares issued (in shares) 0 0          
Repurchase of common stock | $ $ 315