Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions		Dec. 31, 2023	Sep. 30, 2023
Common stock, par value (in dollars per share)		$ 1	$ 1
Common stock, issued shares		249,455,584	249,455,584
Treasury stock at cost, shares		27,154,533	27,255,739
Total Assets	[1]	$ 34,118.2	$ 32,002.5
Total Liabilities	[1]	17,989.1	16,342.2
Variable Interest Entity, Primary Beneficiary | NEOM Green Hydrogen Company
Total Assets		2,751.8	2,256.8
Total Liabilities		$ 2,166.1	$ 1,461.1

[1] Includes balances associated with a consolidated variable interest entity ("VIE"), including amounts reflected in "Total Assets" that can only be used to settle obligations of the VIE of $2,751.8 and $2,256.8 as of 31 December 2023 and 30 September 2023, respectively, as well as liabilities of the VIE reflected within "Total Liabilities" for which creditors do not have recourse to the general credit of Air Products of $2,166.1 and $1,461.1 as of 31 December 2023 and 30 September 2023, respectively. Refer to Note 3, Variable Interest Entities, for additional information regarding the NEOM Green Hydrogen Company joint venture.