Business Segment Information (Tables)

6 Months Ended

Mar. 31, 2019

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 2019
Sales		$991.7		$494.4		$625.4		$53.8			$22.4			$2,187.7
Operating income (loss)	255.6		122.5		199.7		(12.2		)	(49.1		)	516.5
Depreciation and amortization	124.9		46.3		84.9		2.0			4.0			262.1
Equity affiliates' income	17.8		13.3		13.8		1.3			—			46.2
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

	Industrial Gases – Americas		Industrial Gases – EMEA		Industrial Gases – Asia		Industrial Gases – Global			Corporate and other			Segment Total
Six Months Ended 31 March 2019
Sales		$1,980.9		$1,018.6		$1,252.2		$122.0			$38.0			$4,411.7
Operating income (loss)	474.8		228.1		401.5		(8.3		)	(95.6		)	1,000.5
Depreciation and amortization	250.5		92.6		164.8		4.1			8.1			520.1
Equity affiliates' income	40.4		27.0		30.0		1.7			—			99.1
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
Total Assets
31 March 2019		$5,885.6		$3,333.7		$6,167.0		$257.8			$3,600.4			$19,244.5
30 September 2018	5,904.0		3,280.4		5,899.5		240.1			3,854.3			19,178.3

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	2019		2018		2019			2018
Segment total		$516.5		$455.4		$1,000.5			$916.1
Facility closure	—		—		(29.0		)	—
Consolidated Total		$516.5		$455.4		$971.5			$916.1

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	2019		2018		2019		2018
Segment total		$46.2		$43.7		$99.1		$90.0
Tax reform repatriation - equity method investment	—		—		—		(32.5		)
Consolidated Total		$46.2		$43.7		$99.1		$57.5