Goodwill (Tables)

3 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes to the carrying amount of consolidated goodwill by segment for the three months ended 31 December 2017 are as follows:

	Industrial Gases– Americas		Industrial Gases– EMEA		Industrial Gases– Asia		Industrial Gases– Global			Total
Goodwill, net at 30 September 2017	$	163.7	$	402.4	$	135.2	$	20.2		$	721.5
Acquisitions	—		17.3		36.4		—			53.7
Currency translation	2.3		10.9		2.5		(.1		)	15.6
Goodwill, net at 31 December 2017	$	166.0	$	430.6	$	174.1	$	20.1		$	790.8

	31 December			30 September
	2017			2017
Goodwill, gross	$	1,224.4		$	1,138.7
Accumulated impairment losses	(433.6		)	(417.2		)
Goodwill, net	$	790.8		$	721.5