v3.25.1
Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2025
Sep. 30, 2024
Other intangible assets    
Amortized intangible assets, carrying amount $ 1,562.0 $ 1,591.0
Amortized intangible assets, accumulated amortization 614.0 569.0
Amortized intangible assets, net 948.0 1,022.0
Total, carrying amount 1,606.0 1,635.0
Total, net 992.0 1,066.0
Goodwill and Other Intangible Assets (Textual) [Abstract]    
Estimated amortization expense in 2025 152.0  
Estimated amortization expense in 2026 150.0  
Estimated amortization expense in 2027 141.0  
Estimated amortization expense in 2028 129.0  
Estimated amortization expense in 2029 89.0  
Trademarks    
Other intangible assets    
Allen-Bradley trademark not subject to amortization 44.0 44.0
Software products    
Other intangible assets    
Amortized intangible assets, carrying amount 105.0 105.0
Amortized intangible assets, accumulated amortization 79.0 76.0
Amortized intangible assets, net 26.0 29.0
Customer relationships    
Other intangible assets    
Amortized intangible assets, carrying amount 617.0 619.0
Amortized intangible assets, accumulated amortization 208.0 187.0
Amortized intangible assets, net 409.0 432.0
Technology    
Other intangible assets    
Amortized intangible assets, carrying amount 700.0 729.0
Amortized intangible assets, accumulated amortization 267.0 257.0
Amortized intangible assets, net 433.0 472.0
Trademarks    
Other intangible assets    
Amortized intangible assets, carrying amount 134.0 132.0
Amortized intangible assets, accumulated amortization 54.0 44.0
Amortized intangible assets, net 80.0 88.0
Other    
Other intangible assets    
Amortized intangible assets, carrying amount 6.0 6.0
Amortized intangible assets, accumulated amortization 6.0 5.0
Amortized intangible assets, net $ 0.0 $ 1.0