Consolidated Income Statements (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Income Statement [Abstract]
Sales	$ 3,102.5	$ 2,931.5
Cost of sales	2,107.5	2,016.5
Selling and administrative expense	228.7	242.4
Research and development expense	20.4	22.0
Business and asset actions	22.0	0.0
Shareholder activism-related costs	0.0	29.9
Other income (expense), net	10.6	22.9
Operating Income	734.5	643.6
Equity affiliates' income	172.2	150.6
Interest expense	54.5	42.6
Other non-operating income (expense), net	(1.4)	38.9
Income Before Taxes	850.8	790.5
Income tax expense	159.4	140.7
Net Income	691.4	649.8
Net income attributable to noncontrolling interests	13.2	32.4
Net Income Attributable to Air Products	$ 678.2	$ 617.4
Per Share Data (U.S. Dollars per share)
Basic earnings per share attributable to Air Products (in dollars per share)	$ 3.04	$ 2.77
Diluted earnings per share attributable to Air Products (in dollars per share)	$ 3.04	$ 2.77
Weighted Average Common Shares (in millions)
Basic (in shares)	222.8	222.7
Diluted (in shares)	222.9	222.9