Business Segment Information (Tables)

6 Months Ended

Mar. 31, 2017

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

	Industrial Gases– Americas		Industrial Gases– EMEA		Industrial Gases– Asia		Industrial Gases– Global			Corporate and other			Segment Total
Three Months Ended 31 March 2017
Sales	$	890.1	$	414.2	$	435.9	$	216.5		$	23.4		$	1,980.1
Operating income (loss)	224.5		86.5		112.0		22.8			(40.2		)	405.6
Depreciation and amortization	116.0		41.6		49.3		1.7			3.2			211.8
Equity affiliates' income	13.0		8.3		12.9		—			—			34.2
Three Months Ended 31 March 2016
Sales	$	798.1	$	421.8	$	407.9	$	86.6		$	63.0		$	1,777.4
Operating income (loss)	223.5		90.0		105.0		(10.8		)	(16.0		)	391.7
Depreciation and amortization	109.8		48.2		48.8		1.8			5.3			213.9
Equity affiliates' income	7.7		7.2		17.4		—			—			32.3

Six Months Ended 31 March 2017
Sales	$	1,754.0	$	813.9	$	874.2	$	364.4		$	56.1		$	3,862.6
Operating income (loss)	448.3		174.5		230.1		31.0			(70.0		)	813.9
Depreciation and amortization	227.8		83.8		96.0		3.7			6.6			417.9
Equity affiliates' income	27.7		17.8		26.4		.3			—			72.2
Six Months Ended 31 March 2016
Sales	$	1,634.4	$	861.4	$	822.5	$	190.9		$	134.5		$	3,643.7
Operating income (loss)	435.1		182.3		222.3		(30.1		)	(33.4		)	776.2
Depreciation and amortization	218.8		95.0		100.7		3.9			10.2			428.6
Equity affiliates' income (loss)	22.2		14.8		29.1		(.5		)	—			65.6
Total Assets
31 March 2017	$	5,898.8	$	3,100.8	$	4,248.1	$	328.9		$	4,285.1		$	17,861.7
30 September 2016	5,896.7		3,178.6		4,232.7		367.6			2,384.5			16,060.1

Reconciliation of Segments to Consolidated Operating Income

Below is a reconciliation of segment total operating income to consolidated operating income:

	Three Months Ended						Six Months Ended
	31 March						31 March
Operating Income	2017			2016			2017			2016
Segment total	$	405.6		$	391.7		$	813.9		$	776.2
Business separation costs	—			(7.4		)	(30.2		)	(19.4		)
Cost reduction and asset actions	(10.3		)	(10.7		)	(60.3		)	(10.7		)
Pension settlement loss	(4.1		)	(2.0		)	(4.1		)	(2.0		)
Consolidated Total	$	391.2		$	371.6		$	719.3		$	744.1

Reconciliation of Assets from Segment to Consolidated

Below is a reconciliation of segment total assets to consolidated total assets:

	31 March		30 September
Total Assets	2017		2016
Segment total	$	17,861.7	$	16,060.1
Discontinued operations	9.8		1,968.5
Consolidated Total	$	17,871.5	$	18,028.6