Equity Affiliates	6 Months Ended
Equity Affiliates	Mar. 31, 2023
Equity Method Investments and Joint Ventures [Abstract]
Equity Affiliates	EQUITY AFFILIATES Equity Affiliate Investment in Jazan Integrated Gasification and Power Company (“JIGPC”) On 27 October 2021, we made an initial investment of $1.6 billion to acquire a 55% ownership interest in the Jazan Integrated Gasification and Power Company ("JIGPC") joint venture, of which 4% is attributable to the noncontrolling partner of Air Products Qudra (“APQ”). We completed a second investment of $908 on 19 January 2023, which did not change our ownership interest. As of 31 March 2023, the carrying value of our investment totaled $2,724.0 and is presented as “Investments in net assets of and advances to equity affiliates” on our consolidated balance sheet. Our loss exposure is limited to our investment in the joint venture. Our investments were made primarily in the form of shareholder loans that qualify as in-substance common stock in the joint venture and were executed according to the timing of the joint venture's purchase of project assets, which is being completed in phases. The amounts invested included approximately $130 and $73 received from the noncontrolling partner of APQ for the first and second investment, respectively. We expect to complete a remaining investment of approximately $115 for additional assets to be purchased by the joint venture later this calendar year. We determined JIGPC is a variable interest entity for which we are not the primary beneficiary as we do not have the power to direct the activities that are most significant to the economic performance of the joint venture. Instead, these activities, including plant dispatch, operating and maintenance decisions, budgeting, capital expenditures, and financing, require unanimous approval of the owners or are controlled by the customer. Since we have the ability to exercise significant influence in the joint venture, we accounted for our investment in JIGPC under the equity method within the Middle East and India segment beginning in the first quarter of fiscal year 2022. Certain shareholders receive a preferred cash distribution pursuant to the joint venture agreement, which specifies each shareholder’s share of income after considering the amount of cash available for distribution. As such, the earnings attributable to Air Products may not be proportionate to our ownership interest in the venture. Additional information on the JIGPC joint venture is provided below. JIGPC Joint Venture JIGPC is a joint venture with Saudi Aramco Power Company (a subsidiary of Aramco), ACWA Power, and APQ in the Jazan Economic City, Saudi Arabia. On 27 September 2021, JIGPC signed definitive agreements for the acquisition of project assets from Aramco for $12 billion and entered into related project financing for the purchase of the project assets, which include power blocks, gasifiers, air separation units, syngas cleanup assets, and utilities, in multiple phases. The first phase was completed on 27 October 2021 for $7.39 billion, and the second phase was completed for $4.15 billion on 19 January 2023. We expect JIGPC to acquire additional assets totaling approximately $525 later this calendar year. JIGPC will commission, operate, and maintain the project assets to supply electricity, steam, hydrogen, and utilities to Aramco’s refinery and terminal complex under a 25-year agreement, which commenced in the first quarter of fiscal year 2022. JIGPC recorded financing receivables upon acquisition of the assets and is recognizing financing income over the supply term. Jazan Gas Project Company Jazan Gas Project Company (“JGPC”), a joint venture between Air Products and ACWA Holding, entered into a 20-year oxygen and nitrogen supply agreement in 2015 to supply Aramco’s oil refinery and power plant in Jazan, Saudi Arabia. In October 2021, the supply agreement between JGPC and Aramco was terminated, and JGPC sold its air separation units to Aramco. We initially sold these assets to JGPC and deferred profit proportionate to our ownership in the joint venture. With the termination of the supply agreement and sale of the air separation units complete, we recognized the remaining deferred profit, net of other project finalization costs, in equity affiliates’ income in the first quarter of fiscal year 2022.