Goodwill (Tables)

12 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Carrying Amount of Goodwill by Segment

Changes to the carrying amount of consolidated goodwill by segment are as follows:

	Industrial Gases– Americas	Industrial Gases– EMEA	Industrial Gases– Asia	Industrial Gases– Global	Corporate and other	Total
Goodwill, net at 30 September 2018	$162.1	$424.4	$171.9	$20.1	$10.4	$788.9
Acquisitions	—	38.5	10.1	—	—	48.6
Currency translation and other	(5.8)	(30.6)	(3.5)	(0.5)	—	(40.4)
Goodwill, net at 30 September 2019	$156.3	$432.3	$178.5	$19.6	$10.4	$797.1
Acquisitions	—	66.6	—	—	4.5	71.1
Currency translation and other	(3.7)	25.2	1.9	(0.1)	—	23.3
Goodwill, net at 30 September 2020	$152.6	$524.1	$180.4	$19.5	$14.9	$891.5

30 September	2020	2019	2018
Goodwill, gross	$1,230.2	$1,162.2	$1,194.7
Accumulated impairment losses(A)	(338.7)	(365.1)	(405.8)
Goodwill, net	$891.5	$797.1	$788.9

(A)Accumulated impairment losses include the impacts of currency translation. These losses are attributable to our Latin America reporting unit ("LASA") within the Industrial Gases – Americas segment.