EARNINGS PER SHARE (Tables)

12 Months Ended

Sep. 30, 2024

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share

The following table presents the computation of basic and diluted earnings per common share.

	Year ended September 30,
$ in millions, except per share amounts	2024		2023		2022
Income for basic earnings per common share:
Net income available to common shareholders	$	2,063	$	1,733	$	1,505
Less allocation of earnings and dividends to participating securities	(4)		(5)		(3)
Net income available to common shareholders after participating securities	$	2,059	$	1,728	$	1,502
Income for diluted earnings per common share:
Net income available to common shareholders	$	2,063	$	1,733	$	1,505
Less allocation of earnings and dividends to participating securities	(4)		(5)		(3)
Net income available to common shareholders after participating securities	$	2,059	$	1,728	$	1,502
Common shares:
Average common shares in basic computation	207.1		211.8		209.9
Dilutive effect of outstanding stock options and certain RSUs	5.2		5.1		5.4
Average common and common equivalent shares used in diluted computation	212.3		216.9		215.3
Earnings per common share:
Basic	$	9.94	$	8.16	$	7.16
Diluted	$	9.70	$	7.97	$	6.98
Stock options and certain RSUs excluded from weighted-average diluted common shares because their effect would be antidilutive	0.1		0.5		0.1