v3.26.1
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Income for basic earnings per common share:        
Net income available to common shareholders $ 542 $ 493 $ 1,104 $ 1,092
Less allocation of earnings and dividends to participating securities 0 (1) (1) (2)
Net income available to common shareholders after participating securities 542 492 1,103 1,090
Income for diluted earnings per common share:        
Net income available to common shareholders 542 493 1,104 1,092
Less allocation of earnings and dividends to participating securities 0 (1) (1) (2)
Net income available to common shareholders after participating securities $ 542 $ 492 $ 1,103 $ 1,090
Common shares:        
Average common shares in basic computation (in shares) 196.1 204.3 196.6 204.0
Dilutive effect of outstanding stock options and certain RSUs (in shares) 3.1 4.4 3.7 4.9
Average common and common equivalent shares used in diluted computation (in shares) 199.2 208.7 200.3 208.9
Earnings per common share:        
Basic (in usd per share) $ 2.76 $ 2.41 $ 5.61 $ 5.34
Diluted (in usd per share) $ 2.72 $ 2.36 $ 5.51 $ 5.22
Stock options and certain RSUs excluded from weighted-average diluted common shares because their effect would be antidilutive (in shares) 0.1 1.0 0.0 1.4