Plant and Equipment, Net (Tables)

12 Months Ended

Sep. 30, 2019

Property, Plant and Equipment [Abstract]

Schedule of Major Classes of Plant and Equipment

The major classes of plant and equipment are as follows:

30 September	Useful Life in years			2019		2018
Land					$281.5		$269.4
Buildings			30	946.8		988.6
Production facilities(A)	10	to	20	15,602.1		15,082.8
Distribution and other machinery and equipment(B)	5	to	25	4,491.9		4,400.9
Construction in progress				1,011.4		748.5
Plant and equipment, at cost				22,333.7		21,490.2
Less: Accumulated depreciation				11,996.1		11,566.5
Plant and equipment, net					$10,337.6		$9,923.7

^(A)  Depreciable lives of production facilities related to long-term customer supply contracts are matched to the contract lives.

^(B) 

The depreciable lives for various types of distribution equipment are: 10 to 25 years for cylinders, depending on the nature and properties of the product; 20 years for tanks; 7.5 years for customer stations; and 5 to 15 years for tractors and trailers.