Business Segment Information (Tables)

6 Months Ended

Mar. 31, 2018

Segment Reporting Information [Line Items]

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 2018
Sales		$913.2		$561.6		$557.6		$101.7		$21.6			$2,155.7
Operating income (loss)	222.3		116.7		148.7		12.1		(44.4		)	455.4
Depreciation and amortization	122.3		50.7		62.6		1.9		2.5			240.0
Equity affiliates' income	16.9		11.1		15.4		.3		—			43.7
Three Months Ended 31 March 2017
Sales		$890.1		$414.2		$435.9		$216.5		$23.4			$1,980.1
Operating income (loss)	223.2		88.6		112.3		22.7		(40.9		)	405.9
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

	Industrial Gases – Americas		Industrial Gases – EMEA		Industrial Gases – Asia		Industrial Gases – Global		Corporate and other			Segment Total
Six Months Ended 31 March 2018
Sales		$1,823.0		$1,077.5		$1,201.2		$234.7		$35.9			$4,372.3
Operating income (loss)	439.5		221.2		324.2		21.6		(90.4		)	916.1
Depreciation and amortization	240.1		99.8		119.4		3.5		5.1			467.9
Equity affiliates' income	35.5		24.2		29.6		.7		—			90.0
Six Months Ended 31 March 2017
Sales		$1,754.0		$813.9		$874.2		$364.4		$56.1			$3,862.6
Operating income (loss)	446.5		178.6		230.7		30.9		(70.0		)	816.7
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
Total Assets
31 March 2018		$5,915.0		$3,475.5		$4,779.1		$252.5		$4,089.0			$18,511.1
30 September 2017	5,840.8		3,276.1		4,412.1		279.6		4,648.4			18,457.0

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	2018		2017			2018		2017
Segment total		$455.4		$405.9			$916.1		$816.7
Business separation costs	—		—			—		(32.5		)
Cost reduction and asset actions	—		(10.3		)	—		(60.3		)
Consolidated Total		$455.4		$395.6			$916.1		$723.9

Reconciliation of Segments to Consolidated Equity Affiliates' Income (Loss)

Below is a reconciliation of segment total equity affiliates' income to consolidated equity affiliates' income:

	Three Months Ended				Six Months Ended
	31 March				31 March
Equity Affiliates' Income	2018		2017		2018			2017
Segment total		$43.7		$34.2		$90.0			$72.2
Tax reform repatriation - equity method investment	—		—		(32.5		)	—
Consolidated Total		$43.7		$34.2		$57.5			$72.2

Reconciliation of Segments to Consolidated Total Assets

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

	31 March		30 September
Total Assets	2018		2017
Segment total		$18,511.1		$18,457.0
Discontinued operations	—		10.2
Consolidated Total		$18,511.1		$18,467.2