v3.26.3
ACQUISITIONS - Servotronics, Inc. (Details) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Jun. 02, 2025
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2024
Business Combination [Line Items]        
Acquisition of businesses, net of cash acquired   $ 4,389 $ 419 $ 2,347
GOODWILL   $ 12,946 $ 10,612 $ 10,419
Servotronics, Inc.        
Business Combination [Line Items]        
Business combination, price per share (in dollars per share) $ 47.00      
Acquisition of businesses, net of cash acquired $ 133      
GOODWILL 76      
Other intangible assets 46      
Amount of goodwill expected to be tax deductible 0      
Business acquisition, intangible assets, expected tax deductible amount $ 0