v3.26.1
Revenue Recognition - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Disaggregation of Revenue [Line Items]        
Total $ 6,614 $ 6,052 $ 18,553 $ 17,154
Products and systems        
Disaggregation of Revenue [Line Items]        
Total 4,596 4,122 12,687 11,672
Services        
Disaggregation of Revenue [Line Items]        
Total 2,018 1,930 5,866 5,482
Americas        
Disaggregation of Revenue [Line Items]        
Total 4,504 4,042 12,468 11,506
Americas | Products and systems        
Disaggregation of Revenue [Line Items]        
Total 3,194 2,847 8,709 8,094
Americas | Services        
Disaggregation of Revenue [Line Items]        
Total 1,310 1,195 3,759 3,412
EMEA        
Disaggregation of Revenue [Line Items]        
Total 1,264 1,273 3,807 3,631
EMEA | Products and systems        
Disaggregation of Revenue [Line Items]        
Total 777 756 2,338 2,177
EMEA | Services        
Disaggregation of Revenue [Line Items]        
Total 487 517 1,469 1,454
APAC        
Disaggregation of Revenue [Line Items]        
Total 846 737 2,278 2,017
APAC | Products and systems        
Disaggregation of Revenue [Line Items]        
Total 625 519 1,640 1,401
APAC | Services        
Disaggregation of Revenue [Line Items]        
Total $ 221 $ 218 $ 638 $ 616