Equity (Tables)

3 Months Ended

Dec. 31, 2017

Stockholders' Equity Note [Abstract]

Schedule of Equity

The following is a summary of the changes in total equity:

	Three Months Ended 31 December
	2017									2016
	Air Products			Non- controlling Interests			Total Equity			Air Products			Non- controlling Interests			Total Equity
Balance at 30 September	$	10,086.2		$	99.3		$	10,185.5		$	7,079.6		$	133.8		$	7,213.4
Net income	154.6			7.1			161.7			299.8			6.6			306.4
Other comprehensive income (loss)	151.8			1.9			153.7			(234.9		)	(3.1		)	(238.0		)
Dividends on common stock (per share $0.95, $0.86)	(208.0		)	—			(208.0		)	(187.1		)	—			(187.1		)
Dividends to noncontrolling interests	—			(7.7		)	(7.7		)	—			(4.2		)	(4.2		)
Share-based compensation	11.1			—			11.1			9.0			—			9.0
Treasury shares for stock option and award plans	19.9			—			19.9			(.3		)	—			(.3		)
Spin-off of Versum	—			—			—			186.5			(33.9		)	152.6
Cumulative change in accounting principle	—			—			—			8.8			—			8.8
Other equity transactions	(.3		)	5.3			5.0			.1			.4			.5
Balance at 31 December	$	10,215.3		$	105.9		$	10,321.2		$	7,161.5		$	99.6		$	7,261.1