Earnings Per Share (Tables)

12 Months Ended

Sep. 30, 2023

Earnings Per Share [Abstract]

Earnings Per Share

The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share (in millions):

	Year Ended September 30,
	2023		2022		2021
Income Available to Ordinary Shareholders
Income from continuing operations	$	1,849	$	1,532	$	1,513
Income from discontinued operations	—		—		124
Basic and diluted income available to shareholders	$	1,849	$	1,532	$	1,637
Weighted Average Shares Outstanding
Basic weighted average shares outstanding	684.3		696.1		716.6
Effect of dilutive securities:
Stock options, unvested restricted stock and unvested    performance share awards	3.1		3.5		4.5
Diluted weighted average shares outstanding	687.4		699.6		721.1
Antidilutive Securities
Stock options and unvested restricted stock	0.2		0.4		—