Plant and Equipment, Net (Tables)

12 Months Ended

Sep. 30, 2022

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	2022	2021
Land		$266.7	$312.1
Buildings	30 years	1,431.3	1,083.1
Production facilities(A)	10-20 years	18,000.5	18,236.9
Distribution and other machinery and equipment(B)	5-25 years	4,784.9	5,111.6
Construction in progress		3,676.7	2,745.1
Plant and equipment, at cost		$28,160.1	$27,488.8
Less: Accumulated depreciation		13,999.6	14,234.2
Plant and equipment, net		$14,160.5	$13,254.6

(A)Depreciable lives of production facilities related to long-term customer supply contracts are generally 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; generally 7.5 years for customer stations; and 5 to 15 years for tractors and trailers.