Goodwill (Tables)

6 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

Changes to the carrying amount of consolidated goodwill by segment for the six months ended 31 March 2018 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	—		27.7		35.2		—		62.9
Currency translation	3.5		22.0		5.0		.1		30.6
Goodwill, net at 31 March 2018		$167.2		$452.1		$175.4		$20.3		$815.0

	31 March			30 September
	2018			2017
Goodwill, gross		$1,257.0			$1,138.7
Accumulated impairment losses	(442.0		)	(417.2		)
Goodwill, net		$815.0			$721.5