Air Products and Chemicals (APD) 10-Q 1 Aug 17 2017 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	9 Months Ended
	Jun. 30, 2017shares
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--09-30
Entity Registrant Name	AIR PRODUCTS & CHEMICALS INC /DE/
Entity Central Index Key	2,969
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	217,957,369

Consolidated Income Statements

Consolidated Income Statements (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Income Statement [Abstract]
Sales	$ 2,121.9	$ 1,914.5	$ 5,984.5	$ 5,558.2
Cost of sales	1,486.2	1,320.2	4,208.1	3,829.1
Selling and administrative	184.5	168.4	528.1	510.1
Research and development	14.6	18.7	44.5	53.8
Business separation costs	0	9.5	30.2	28.9
Cost reduction and asset actions	42.7	13.2	103	23.9
Pension settlement loss	5.5	1	9.6	3
Goodwill and intangible asset impairment charge	162.1	0	162.1	0
Other income (expense), net	26.3	11.1	73	29.3
Operating Income	252.6	394.6	971.9	1,138.7
Equity affiliates' income (loss)	(36.9)	42.1	35.3	107.7
Interest expense	29.8	35.1	89.8	83
Other non-operating income (expense), net	9.8	0	19.5	0
Income From Continuing Operations Before Taxes	195.7	401.6	936.9	1,163.4
Income tax provision	89.3	145.9	262.2	335.8
Income from Continuing Operations	106.4	255.7	674.7	827.6
Income (Loss) From Discontinued Operations, net of tax	(2.3)	98.4	1,871.5	(567)
Net Income	104.1	354.1	2,546.2	260.6
Net Income Attributable to Noncontrolling Interests of Continuing Operations	2.2	5.4	14.5	17.5
Net Income Attributable to Noncontrolling Interests of Discontinued Operations	0	1.9	0	6
Net Income Attributable to Air Products	101.9	346.8	2,531.7	237.1
Net Income Attributable to Air Products
Income from continuing operations	104.2	250.3	660.2	810.1
Income (Loss) from discontinued operations	(2.3)	96.5	1,871.5	(573)
Net Income Attributable to Air Products	$ 101.9	$ 346.8	$ 2,531.7	$ 237.1
Basic Earnings Per Common Share Attributable to Air Products
Income from continuing operations, basic (in dollars per share)	$ 0.48	$ 1.16	$ 3.03	$ 3.75
Income (Loss) from discontinued operations, basic (in dollars per share)	(0.01)	0.44	8.59	(2.65)
Net Income (Loss) Attributable to Air Products (in dollars per share)	0.47	1.60	11.62	1.10
Diluted Earnings Per Common Share Attributable to Air Products
Income from continuing operations, diluted (in dollars per share)	0.47	1.15	3	3.72
Income (Loss) from discontinued operations, diluted (in dollars per share)	(0.01)	0.44	8.52	(2.63)
Net Income (Loss) Attributable to Air Products (in dollars per share)	$ 0.46	$ 1.59	$ 11.52	$ 1.09
Weighted Average Common Shares - Basic (in millions)	218.1	216.6	217.9	216.1
Weighted Average Common Shares - Diluted (in millions)	219.8	218.5	219.8	218
Dividends Declared Per Common Share - Cash (in dollars per share)	$ 0.95	$ 0.86	$ 2.76	$ 2.53

Consolidated Comprehensive Inco

Consolidated Comprehensive Income Statements (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract]
Net Income	$ 104.1	$ 354.1	$ 2,546.2	$ 260.6
Translation adjustments, net of tax	141.4	(89)	9.8	(52)
Net gain (loss) on derivatives, net of tax	23	(22.2)	(2.2)	6.6
Pension and postretirement benefits, net of tax	0.1	0	3.9	0
Reclassification adjustments:
Currency translation adjustment	8.2	(0.1)	57.3	2.7
Derivatives, net of tax	(23.6)	10	7.8	(20.4)
Pension and postretirement benefits, net of tax	27.7	21.6	85.2	65.4
Total Other Comprehensive Income (Loss)	176.8	(79.7)	161.8	2.3
Comprehensive Income	280.9	274.4	2,708	262.9
Net Income Attributable to Noncontrolling Interests	2.2	7.3	14.5	23.5
Other Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0.2	(0.7)	2.1	2.1
Comprehensive Income Attributable to Air Products	$ 278.5	$ 267.8	$ 2,691.4	$ 237.3

Consolidated Comprehensive Inc4

Consolidated Comprehensive Income Statements (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Other Comprehensive Income (Loss), Tax, Parenthetical Disclosures [Abstract]
Tax effect on translation adjustments	$ (33.1)	$ 11.5	$ (8.8)	$ (14.3)
Tax effect on net gain (loss) on derivatives	9.6	(7.1)	(6.8)	7.9
Tax effect on pension and postretirement benefits	0	0	1.2	0
Tax effect on derivatives reclassification adjustments	(7.9)	4	5.4	(4.5)
Tax effect on pension and postretirement benefits reclassification adjustments	$ 12.8	$ 10.5	$ 39.4	$ 31.9

Consolidated Balance Sheets (Un

Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Current Assets
Cash and cash items	$ 2,332.6	$ 1,293.2
Short-term investments	1,016.1	0
Trade receivables, net	1,101.2	1,146.2
Inventories	293.3	255
Contracts in progress, less progress billings	83.3	64.6
Prepaid expenses	79	93.9
Other receivables and current assets	431.7	538.2
Current assets of discontinued operations	9.8	926.2
Total Current Assets	5,347	4,317.3
Investment in net assets of and advances to equity affiliates	1,244.7	1,283.6
Plant and equipment, at cost	19,176.3	18,660.2
Less: accumulated depreciation	10,859.3	10,400.5
Plant and equipment, net	8,317	8,259.7
Goodwill, net	705.1	845.1
Intangible assets, net	363.8	387.9
Noncurrent capital lease receivables	1,139.3	1,221.7
Other noncurrent assets	736.9	671
Noncurrent assets of discontinued operations	0	1,042.3
Total Noncurrent Assets	12,506.8	13,711.3
Total Assets	17,853.8	18,028.6
Current Liabilities
Payables and accrued liabilities	1,534.3	1,652.2
Accrued income taxes	323	117.9
Short-term borrowings	143.4	935.8
Current portion of long-term debt	416	365.4
Current liabilities of discontinued operations	16.5	211.8
Total Current Liabilities	2,433.2	3,283.1
Long-term debt	3,366.6	3,909.7
Other noncurrent liabilities	1,910	1,816.5
Deferred income taxes	634.1	710.4
Noncurrent liabilities of discontinued operations	0	1,095.5
Total Noncurrent Liabilities	5,910.7	7,532.1
Total Liabilities	8,343.9	10,815.2
Commitments and Contingencies - See Note 13
Air Products Shareholders’ Equity
Common stock (par value $1 per share; issued 2017 and 2016 - 249,455,584 shares)	249.4	249.4
Capital in excess of par value	986.4	970
Retained earnings	12,584.2	10,475.5
Accumulated other comprehensive loss	(2,217.1)	(2,388.3)
Treasury stock, at cost (2017 - 31,498,215 shares; 2016 - 32,104,759 shares)	(2,190.5)	(2,227)
Total Air Products Shareholders’ Equity	9,412.4	7,079.6
Noncontrolling Interests	97.5	133.8
Total Equity	9,509.9	7,213.4
Total Liabilities and Equity	$ 17,853.8	$ 18,028.6

Consolidated Balance Sheets (U6

Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2017	Sep. 30, 2016
Air Products Shareholders’ Equity
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	31,498,215	32,104,759

Consolidated Statements of Cash

Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating Activities
Net Income	$ 2,546.2	$ 260.6
Less: Net income attributable to noncontrolling interests of continuing operations	14.5	17.5
Less: Net income attributable to noncontrolling interests of discontinued operations	0	6
Net Income Attributable to Air Products	2,531.7	237.1
(Income) Loss from discontinued operations	(1,871.5)	573
Income from continuing operations attributable to Air Products	660.2	810.1
Adjustments to reconcile income to cash provided by operating activities:
Depreciation and amortization	634.8	642.1
Deferred income taxes	(78.1)	75.6
Undistributed earnings of unconsolidated affiliates	(34.4)	(34.2)
Gain on sale of assets and investments	(7.9)	(1.4)
Share-based compensation	27.4	23.9
Noncurrent capital lease receivables	69.4	61.5
Goodwill and intangible asset impairment charge	162.1	0
Equity method investment impairment charge	79.5	0
Write-down of long-lived assets associated with cost reduction actions	59.1	0
Other adjustments	110.7	107.3
Working capital changes that provided (used) cash, excluding effects of acquisitions and divestitures:
Trade receivables	(25.7)	(173.8)
Inventories	44.8	13.6
Contracts in progress, less progress billings	(18.6)	(6)
Other receivables	80	(70.4)
Payables and accrued liabilities	(99.9)	61
Other working capital	(50)	12.9
Cash Provided by Operating Activities	1,613.4	1,522.2
Investing Activities
Additions to plant and equipment	(806.8)	(700.9)
Investment in and advances to unconsolidated affiliates	(8.1)	0
Proceeds from sale of assets and investments	20.7	44.1
Purchases of investments	(2,488.6)	0
Proceeds from investments	1,473.5	0
Other investing activities	(1.5)	(1.7)
Cash Used for Investing Activities	(1,810.8)	(658.5)
Financing Activities
Long-term debt proceeds	2.2	388.3
Payments on long-term debt	(483.5)	(121.7)
Net decrease in commercial paper and short-term borrowings	(799.2)	(434.3)
Dividends paid to shareholders	(580.9)	(534.9)
Proceeds from stock option exercises	38.2	76.2
Other financing activities	(31.2)	(29.5)
Cash Used for Financing Activities	(1,854.4)	(655.9)
Discontinued Operations
Cash (used for) provided by operating activities	(768)	269.2
Cash provided by (used for) investing activities	3,750.6	(160.9)
Cash provided by (used for) financing activities	69.5	(11.4)
Cash Provided by Discontinued Operations	3,052.1	96.9
Effect of Exchange Rate Changes on Cash	1.5	3.7
Increase in Cash and Cash Items	1,001.8	308.4
Cash and Cash Items – Beginning of Year	1,330.8	206.4
Cash and Cash Items – End of Period	2,332.6	514.8
Less: Cash and Cash Items - Discontinued Operations	0	76.3
Cash and Cash Items - Continuing Operations	$ 2,332.6	$ 438.5

Basis of Presentation and Major

Basis of Presentation and Major Accounting Policies	9 Months Ended
	Jun. 30, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Major Accounting Policies	1. BASIS OF PRESENTATION AND MAJOR ACCOUNTING POLICIES Refer to our 2016 Form 10-K for a description of major accounting policies. There have been no significant changes to these accounting policies during the first nine months of fiscal year 2017 other than those detailed in Note 2 , New Accounting Guidance . Certain prior year information has been reclassified to conform to the fiscal year 2017 presentation. The results of our former Materials Technologies segment, which contained the Electronic Materials Division (EMD) and the Performance Materials Division (PMD), and the former Energy-from-Waste segment have been presented as discontinued operations. Refer to Note 3, Discontinued Operations, for additional details. The results of operations and cash flows of these businesses have been removed from the results of continuing operations and segment results for all periods presented. The assets and liabilities of the discontinued operations have been reclassified and are segregated in the consolidated balance sheets. The comprehensive income related to these businesses has not been segregated and is included in the consolidated comprehensive income statement for all periods presented. The notes to the interim consolidated financial statements, unless otherwise indicated, are on a continuing operations basis. As further discussed in Note 3 , Discontinued Operations , we completed the sale of PMD to Evonik Industries AG on 3 January 2017. A portion of the proceeds from the sale have been included in "Short-term investments" on the consolidated balance sheets. Associated interest income has been reflected on the consolidated income statements as “Other non-operating income (expense), net." The consolidated financial statements of Air Products and Chemicals, Inc. and its subsidiaries (“we,” “our,” “us,” the “Company,” “Air Products,” or “registrant”) included herein have been prepared by us, without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (GAAP) have been condensed or omitted pursuant to such rules and regulations. In our opinion, the accompanying statements reflect adjustments necessary to present fairly the financial position, results of operations, and cash flows for those periods indicated and contain adequate disclosure to make the information presented not misleading. Adjustments included herein are of a normal, recurring nature unless otherwise disclosed in the notes. The interim results for the periods indicated herein, however, do not reflect certain adjustments, such as the valuation of inventories on the last-in, first-out (LIFO) cost basis, which are only finally determined on an annual basis. In order to fully understand the basis of presentation, the consolidated financial statements and related notes included herein should be read in conjunction with the financial statements and notes thereto included in our 2016 Form 10-K filed on 21 November 2016, portions of which were updated in the Company's Current Report on Form 8-K filed on 5 June 2017 to reflect the classification of the former Materials Technologies segment as a discontinued operation. Results of operations for interim periods are not necessarily indicative of the results of operations for a full year.

New Accounting Guidance

New Accounting Guidance	9 Months Ended
	Jun. 30, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Guidance	2. NEW ACCOUNTING GUIDANCE Accounting Guidance Implemented in 2017 Simplifying Goodwill Impairment Test In January 2017, the Financial Accounting Standards Board (FASB) issued guidance to simplify the test for goodwill impairment by eliminating Step 2, which measured the impairment loss based on the fair value of goodwill. Under the new guidance, an impairment loss will be recognized for the amount by which the carrying amount of the reporting unit exceeds its fair value, not to exceed the total amount of goodwill allocated to that reporting unit. The guidance is effective for annual or interim goodwill impairments tests conducted in fiscal year 2021 and should be applied prospectively. We elected to early adopt this guidance during the third quarter of fiscal year 2017. Refer to Note 8, Goodwill, for a discussion of our interim goodwill assessment and the related impairment charge. Consolidation Analysis In February 2015, the FASB issued an update to amend current consolidation guidance. The guidance impacts the analysis an entity must perform in determining if it should consolidate certain legal entities such as limited partnerships, limited liability corporations, and securitization structures. We adopted this guidance in the first quarter of fiscal year 2017. This guidance did not have a significant impact on our consolidated financial statements upon adoption. Debt Issuance Costs In April 2015, the FASB issued guidance requiring that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of the debt instead of as a separate deferred asset. In addition, guidance was issued to allow for a policy election on the presentation of debt issuance costs associated with a line-of-credit arrangement, regardless of whether there are any outstanding borrowings. We adopted the guidance during the first quarter of fiscal year 2017 on a retrospective basis. The guidance resulted in a reclassification adjustment that decreased other noncurrent assets by $17.0 with a corresponding decrease to long-term debt as of 30 September 2016. We will continue to present debt issuance costs associated with a line-of-credit arrangement as a deferred asset, regardless of whether there are any outstanding borrowings. Adoption of this guidance also impacted the presentation of debt issuance costs related to our discontinued operations. As of 30 September 2016, noncurrent assets and noncurrent liabilities of discontinued operations were both reduced by $9.6 . Share-Based Compensation In March 2016, the FASB issued an update to simplify the accounting for employee share-based payments, including the income tax impacts, the classification on the statement of cash flows, and forfeitures. We elected to early adopt this guidance in the first quarter of fiscal year 2017. The new guidance requires excess tax benefits and deficiencies to be recognized in the income statement rather than in additional paid-in capital on the balance sheet. As a result of applying this change prospectively, we recognized $3.5 and $13.2 of excess tax benefits in our provision for income taxes during the three and nine months ended 30 June 2017 , respectively. In addition, adoption of the new guidance resulted in a $8.8 cumulative-effect adjustment to retained earnings as of 1 October 2016 to recognize deferred taxes for U.S. state net operating loss and other carryforwards attributable to excess tax benefits. We retrospectively applied the guidance, which requires presentation of excess tax benefits as an operating activity on the statement of cash flows rather than as a financing activity. Cash paid on employees’ behalf related to shares withheld for tax purposes continues to be classified as a financing activity. Forfeitures have not been significant historically. We have elected to account for forfeitures as they occur, rather than to estimate them. Definition of a Business In January 2017, the FASB issued guidance that clarifies the definition of a business in order to assist in determining whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. Under the new guidance, fewer transactions are expected to be accounted for as business combinations. We elected to early adopt this guidance prospectively beginning in the first quarter of fiscal year 2017. This guidance did not have a significant impact on our consolidated financial statements upon adoption. New Accounting Guidance to be Implemented Revenue Recognition In May 2014, the FASB issued guidance based on the principle that revenue is recognized in an amount expected to be collected and to which the entity expects to be entitled in exchange for the transfer of goods or services. We have the option to adopt the standard in either fiscal year 2018 or 2019, either retrospectively or as a cumulative-effect adjustment as of the date of adoption. We intend to adopt this guidance in fiscal year 2019. We are currently evaluating the adoption alternatives allowed by the new standard and the impact the standard is expected to have on our consolidated financial statements. As the new standard will supersede substantially all existing revenue guidance affecting us under GAAP, it could impact the amount and timing of revenue that we recognize, in addition to our business processes and information technology systems. To date, we have focused on identifying potential impacts on our onsite gases and sale of equipment businesses and on efforts needed to meet the expanded disclosure requirements. Our evaluation of the effect of the new standard will extend over future periods. Leases In February 2016, the FASB issued guidance which requires lessees to recognize a right-of-use asset and lease liability on the balance sheet for all leases, including operating leases, with a term in excess of 12 months. The guidance also expands the quantitative and qualitative disclosure requirements. The guidance is effective in fiscal year 2020, with early adoption permitted, and must be applied using a modified retrospective approach. We are currently evaluating the impact of adopting this new guidance on the consolidated financial statements, and we have started the assessment process by evaluating the population of leases under the revised definition of what qualifies as a leased asset. The Company is the lessee under various agreements for real estate, distribution equipment, aircraft, and vehicles that are currently accounted for as operating leases. The new guidance will require the Company to record operating leases on the balance sheet with a right-of-use asset and corresponding liability for future payment obligations. The Company is currently considered the lessor under certain agreements associated with facilities that are built to provide product to a specific customer. Derivative Contract Novations In March 2016, the FASB issued guidance to clarify that a change in the counterparty to a derivative instrument that has been designated as a hedging instrument does not, in and of itself, require re-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. This guidance is effective in fiscal year 2018, with early adoption permitted. We do not expect adoption of this guidance to have a significant impact on our consolidated financial statements. Credit Losses on Financial Instruments In June 2016, the FASB issued an update on the measurement of credit losses, which requires measurement and recognition of expected credit losses for financial assets, including trade receivables and capital lease receivables, held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts. The method to determine a loss is different from the existing guidance, which requires a credit loss to be recognized when it is probable. The guidance is effective beginning fiscal year 2021, with early adoption permitted beginning fiscal year 2020. We are currently evaluating the impact this update will have on our consolidated financial statements. Cash Flow Statement Classification In August 2016, the FASB issued guidance to reduce diversity in practice on how certain cash receipts and cash payments are classified in the statement of cash flows. The guidance is effective beginning fiscal year 2019, with early adoption permitted, and should be applied retrospectively. We are currently evaluating the impact of adopting this new guidance on the consolidated financial statements. Intra-Entity Asset Transfers In October 2016, the FASB issued guidance on the accounting for the income tax effects of intra-entity transfers of assets other than inventory. Current GAAP prohibits the recognition of current and deferred income taxes for an intra-entity asset transfer until the asset has been sold to an outside party. Under the new guidance, the income tax consequences of an intra-entity asset transfer are recognized when the transfer occurs. The guidance is effective beginning in fiscal year 2019, with early adoption permitted as of the beginning of an annual reporting period. The guidance must be applied on a modified retrospective basis through a cumulative-effect adjustment directly to retained earnings as of the date of adoption. We are currently evaluating the impact this guidance will have on our consolidated financial statements and plan to adopt the guidance in fiscal year 2019. Derecognition of Nonfinancial Assets In February 2017, the FASB issued an update to clarify the scope of guidance on gains and losses from the derecognition of nonfinancial assets and to add guidance for partial sales of nonfinancial assets. The update must be adopted at the same time as the new guidance on revenue recognition discussed above, which we intend to adopt in fiscal year 2019. The guidance may be applied retrospectively or with a cumulative-effect adjustment to retained earnings at the date of adoption. We are currently evaluating the impact this update will have on our consolidated financial statements. Presentation of Net Periodic Pension and Postretirement Benefit Cost In March 2017, the FASB issued guidance on improving the presentation of net periodic pension cost and net periodic postretirement benefit cost. The amendments require that the service cost component of the net periodic benefit cost be presented in the same line items as other compensation costs arising from services rendered by employees during the period. The other components of net periodic benefit cost (e.g., interest cost, expected return on plan assets, and amortization of actuarial gains/losses) should be presented in the income statement separately from the service cost component and outside of operating income. The amendments also allow only the service cost component to be eligible for capitalization when applicable. The guidance is effective beginning in fiscal year 2019, with early adoption permitted as of the beginning of fiscal year 2018. The amendments should be applied retrospectively for the presentation requirements and prospectively for the capitalization of the service cost component requirements. We are currently evaluating the impact this update will have on our consolidated financial statements. Share-Based Compensation Modification Accounting In May 2017, the FASB issued an update to amend the scope of modification accounting associated with share-based payment awards. The guidance limits the use of modification accounting to instances where the fair value, vesting conditions, or award classification are different immediately before and after the modification. This guidance is effective in fiscal year 2019, with early adoption permitted, and should be applied prospectively. We do not expect this guidance to have a significant impact on our consolidated financial statements.

Discontinued Operations

Discontinued Operations	9 Months Ended
	Jun. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	3. DISCONTINUED OPERATIONS The divisions comprising the former Materials Technologies segment and the former Energy-from-Waste segment have been accounted for as discontinued operations. The results of operations of these businesses have been removed from the results of continuing operations for all periods presented. The assets and liabilities of the discontinued operations have been reclassified and are segregated in the consolidated balance sheets. Materials Technologies On 16 September 2015, we announced plans to separate our Materials Technologies segment, which contained two divisions, the Electronic Materials Division (EMD) and the Performance Materials Division (PMD). As further discussed below, we completed the separation of EMD through the spin-off of Versum Materials, Inc. (Versum) on 1 October 2016 . In addition, we completed the sale of PMD to Evonik Industries AG (Evonik) on 3 January 2017 . As a result, these divisions are reflected in our consolidated financial statements as discontinued operations for all periods presented. Spin-off of Electronic Materials On 1 October 2016 (the distribution date), Air Products completed the spin-off of Versum into a separate and independent public company by way of a distribution to Air Products’ stockholders of all of the then issued and outstanding shares of common stock of Versum on the basis of one share of Versum common stock for every two shares of Air Products’ common stock held as of the close of business on 21 September 2016 (the record date for the distribution). Fractional shares of Versum common stock were not distributed to Air Products' common stockholders. Air Products’ stockholders received cash in lieu of fractional shares. As a result of the distribution, Versum is now an independent public company, and its common stock is listed under the symbol “VSM” on the New York Stock Exchange. In connection with the spin-off, we entered into various agreements necessary to effect the spin-off and to govern the ongoing relationships between Air Products and Versum after the separation, including a transition services agreement by which we provide certain transition services to Versum, generally for no longer than 12 to 24 months from the spin-off date of 1 October 2016. Seifi Ghasemi, chairman, president and chief executive officer of Air Products, is serving as non-executive chairman of the Versum Board of Directors. Sale of Performance Materials On 3 January 2017, we completed the sale of PMD to Evonik for $ 3.8 billion in cash subject to customary post-closing adjustments, including working capital. A gain of $2,870 ($ 1,833 after-tax, or $8.34 per share) was recognized on the sale in the second quarter of fiscal year 2017. In connection with the sale, we entered into a transition services agreement by which we provide certain transition services to Evonik for no longer than 12 months from the date of sale of 3 January 2017. Energy-from-Waste On 29 March 2016, the Board of Directors approved the Company’s exit of its Energy-from-Waste (EfW) business. As a result, efforts to start up and operate the two EfW projects located in Tees Valley, United Kingdom, were discontinued. Since that time, the EfW segment has been presented as a discontinued operation. During the second quarter of fiscal year 2016, a loss of $945.7 ( $846.6 after-tax) was recorded to write down plant assets to their estimated net realizable value and record a liability for plant disposition and other costs. Income tax benefits related only to one of the projects as the other did not qualify for a local tax deduction. During the first quarter of fiscal year 2017, we determined that it is unlikely for a buyer to assume the remaining assets and contract obligations, including land lease obligations. As a result, we recorded an additional loss of $59.3 ( $47.1 after-tax) in results of discontinued operations, of which $53.0 was recorded primarily for land lease obligations and $6.3 was recorded to update our estimate of the net realizable value of the plant assets as of 31 December 2016. There have been no changes to our estimates during the third quarter of fiscal year 2017 . We may incur additional exit costs in future periods related to other outstanding commitments. The following table summarizes the carrying amount of the accrual for our actions to dispose of the EfW business at 30 June 2017 : Asset Actions Contract Actions/Other Total Loss on disposal of business $ 913.5 $ 32.2 $ 945.7 Noncash expenses (913.5 ) — (913.5 ) Cash expenditures — (18.6 ) (18.6 ) Currency translation adjustment — (1.4 ) (1.4 ) 30 September 2016 $ — $ 12.2 $ 12.2 Loss on disposal of business 6.3 53.0 59.3 Noncash expenses (6.3 ) — (6.3 ) Amount reflected in other noncurrent liabilities — (61.5 ) (61.5 ) Cash expenditures — (1.4 ) (1.4 ) Currency translation adjustments — 3.4 3.4 30 June 2017 $ — $ 5.7 $ 5.7 The loss on disposal was recorded as a component of discontinued operations. The amount reflected in other noncurrent liabilities relates to land lease obligations and is recorded in continuing operations. The remaining accrual is reflected in current liabilities of discontinued operations. The following tables detail the businesses and major line items that comprise income from discontinued operations, net of tax, on the consolidated income statements for the three and nine months ended 30 June 2017 : Three Months Ended 30 June 2017 Total Discontinued Operations (A) Cost of sales $ 2.3 Selling and administrative .3 Other income (expense), net (.8 ) Loss Before Taxes (3.4 ) Income tax provision (1.1 ) Loss from Discontinued Operations, net of tax $ (2.3 ) (A) Activity primarily relates to EfW. Nine Months Ended 30 June 2017 Total Performance Energy- Discontinued Materials from-Waste (A) Operations Sales $ 254.8 $ — $ 254.8 Cost of sales 182.3 11.9 194.2 Selling and administrative 22.5 .5 23.0 Research and development 5.1 — 5.1 Other income (expense), net .3 (.9 ) (.6 ) Operating Income (Loss) 45.2 (13.3 ) 31.9 Equity affiliates’ income .3 — .3 Income (Loss) Before Taxes 45.5 (13.3 ) 32.2 Income tax provision (B) (50.8 ) (3.1 ) (53.9 ) Income (Loss) From Operations of Discontinued Operations, net of tax 96.3 (10.2 ) 86.1 Gain (Loss) on Disposal, net of tax (C) 1,832.5 (47.1 ) 1,785.4 Income (Loss) from Discontinued Operations, net of tax $ 1,928.8 $ (57.3 ) $ 1,871.5 (A) The loss from operations of discontinued operations for EfW primarily relates to land lease obligations, administrative costs, and costs incurred for ongoing project exit activities. (B) As a result of the expected gain on sale of PMD, we released valuation allowances related to capital loss and net operating loss carryforwards during the first quarter of 2017 that favorably impacted our income tax provision within discontinued operations by approximately $ 66 . (C) After-tax gain on sale of $1,832.5 includes expense for income tax reserves for uncertain tax positions of $26.1 gross ( $19.1 net) in various jurisdictions. The following tables detail the businesses and major line items that comprise income from discontinued operations, net of tax, on the consolidated income statements for the three and nine months ended 30 June 2016 : Three Months Ended 30 June 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste (A) Operations Sales $ 240.0 $ 279.9 $ — $ 519.9 Cost of sales 130.9 188.2 17.6 336.7 Selling and administrative 22.8 20.7 .7 44.2 Research and development 10.6 4.9 .1 15.6 Other income (expense), net (.8 ) (.6 ) 8.2 6.8 Operating Income (Loss) 74.9 65.5 (10.2 ) 130.2 Equity affiliates’ income — .5 — .5 Income (Loss) Before Taxes (B) 74.9 66.0 (10.2 ) 130.7 Income tax provision 16.8 16.8 (1.3 ) 32.3 Income (Loss) from Operations of Discontinued Operations, net of tax 58.1 49.2 (8.9 ) 98.4 Net Income Attributable to Noncontrolling Interests of Discontinued Operations 1.9 — — 1.9 Net Income (Loss) From Discontinued Operations, net of tax $ 56.2 $ 49.2 $ (8.9 ) $ 96.5 Nine Months Ended 30 June 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste (A) Operations Sales $ 713.3 $ 789.9 $ — $ 1,503.2 Cost of sales 385.8 539.1 22.9 947.8 Selling and administrative 61.2 59.2 2.3 122.7 Research and development 30.2 14.8 .8 45.8 Other income (expense), net 4.2 3.1 (5.5 ) 1.8 Operating Income (Loss) 240.3 179.9 (31.5 ) 388.7 Equity affiliates’ income .2 .9 — 1.1 Income (Loss) Before Taxes (B) 240.5 180.8 (31.5 ) 389.8 Income tax provision 58.4 53.7 (1.9 ) 110.2 Income (Loss) From Operations of Discontinued Operations 182.1 127.1 (29.6 ) 279.6 Loss on Disposal, net of tax — — (846.6 ) (846.6 ) Income (Loss) from Operations of Discontinued Operations, net of tax 182.1 127.1 (876.2 ) (567.0 ) Net Income Attributable to Noncontrolling Interests of Discontinued Operations 6.0 — — 6.0 Net Income (Loss) From Discontinued Operations, net of tax $ 176.1 $ 127.1 $ (876.2 ) $ (573.0 ) (A) The loss from operations of discontinued operations for EfW primarily relates to project suspension costs, land lease obligations, and administrative costs. (B) For the three and nine months ended 30 June 2016 , income before taxes from operations of discontinued operations attributable to Air Products was $ 128.3 and $382.4 , respectively. The following table details the major line items that comprise total assets and total liabilities of discontinued operations on the consolidated balance sheets as of 30 June 2017 : 30 June 2017 Total Performance Energy- Discontinued Materials from-Waste Operations Assets Current Assets Plant and equipment, net $ — $ 9.8 $ 9.8 Total Current Assets — 9.8 9.8 Total Assets $ — $ 9.8 $ 9.8 Liabilities Current Liabilities Payables and accrued liabilities (A) $ 10.4 $ 6.1 $ 16.5 Total Current Liabilities 10.4 6.1 16.5 Total Liabilities $ 10.4 $ 6.1 $ 16.5 (A) Includes reserves associated with disposition of businesses. The following table details the major line items that comprise total assets and total liabilities of discontinued operations on the consolidated balance sheets as of 30 September 2016 : 30 September 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste Operations Assets Current Assets Cash and cash items $ 170.6 $ 37.5 $ — $ 208.1 Trade receivables, net 134.7 159.0 — 293.7 Inventories 138.1 226.8 — 364.9 Plant and equipment, net — — 18.2 18.2 Other receivables and current assets 34.5 5.6 1.2 41.3 Total Current Assets 477.9 428.9 19.4 926.2 Plant and equipment, net 296.5 296.5 — 593.0 Goodwill, net 180.0 125.0 — 305.0 Intangible assets, net 75.1 25.0 — 100.1 Other noncurrent assets 37.5 6.7 — 44.2 Total Noncurrent Assets 589.1 453.2 — 1,042.3 Total Assets $ 1,067.0 $ 882.1 $ 19.4 $ 1,968.5 Liabilities Current Liabilities Payables and accrued liabilities $ 85.8 $ 72.5 $ 19.0 $ 177.3 Accrued income taxes 22.7 6.0 — 28.7 Current portion of long-term debt 5.8 — — 5.8 Total Current Liabilities 114.3 78.5 19.0 211.8 Long-term debt 981.8 — — 981.8 Deferred income taxes 50.3 6.4 — 56.7 Other noncurrent liabilities 47.4 9.6 — 57.0 Total Noncurrent Liabilities 1,079.5 16.0 — 1,095.5 Total Liabilities $ 1,193.8 $ 94.5 $ 19.0 $ 1,307.3

Business Separation Costs

Business Separation Costs	9 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Business Separation Costs	4. BUSINESS SEPARATION COSTS In connection with the disposition of the two divisions comprising the former Materials Technologies segment, we incurred separation costs of $30.2 for the nine months ended 30 June 2017 . No business separation costs were incurred during the third quarter of fiscal year 2017. For the three and nine months ended 30 June 2016 , we incurred separation costs of $9.5 and $28.9 , respectively. These costs are reflected on the consolidated income statements as “Business separation costs” and include legal, advisory, and pension related costs. Our income tax provision for the three and nine months ended 30 June 2017 includes net tax benefits of $8.2 related to changes in tax positions on business separation activities. Our income tax provision for the three and nine months ended 30 June 2016 includes an expense of $45.7 resulting from a dividend that was declared in June 2016 to repatriate $443.8 from a subsidiary in South Korea to the U.S. in anticipation of the separation of EMD from the industrial gases business in South Korea. Refer to Note 3 , Discontinued Operations , for additional information regarding the dispositions.

Cost Reduction and Asset Action

Cost Reduction and Asset Actions	9 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Cost Reduction and Asset Actions	5. COST REDUCTION AND ASSET ACTIONS For the three months ended 30 June 2017 , we recognized an expense of $42.7 for cost reduction and asset actions. Severance and other benefits totaled $ 9.5 . Asset actions of $33.2 primarily included charges resulting from the planned sale of a non-industrial gas hardgoods business in the Industrial Gases – Americas segment and the closure of a facility in the Corporate and other segment that manufactured liquefied natural gas (LNG) heat exchangers. For the nine months ended 30 June 2017 , we recognized a net expense of $103.0 . The year-to-date net expense included a charge of $ 106.4 for actions taken during fiscal year 2017 , partially offset by the favorable settlement of the remaining $ 3.4 accrued balance associated with business restructuring actions taken in 2015. Asset actions of $78.9 included those taken in the third quarter discussed above and a first quarter charge of $ 45.7 resulting from the write-down of an air separation unit in the Industrial Gases – EMEA segment that was constructed mainly to provide oxygen to one of the Energy-from-Waste plants. During the first nine months of fiscal year 2017 , severance and other benefits totaled $ 27.5 and related to the elimination of approximately 270 positions, primarily in the Industrial Gases – Americas, Industrial Gases – EMEA and Corporate and other segments. During fiscal year 2016, we incurred an expense of $ 34.5 for severance and other benefits related to the elimination of approximately 610 positions. Expense of $ 13.2 and $23.9 was recognized for the three and nine months ended 30 June 2016 , respectively. The fiscal year 2016 expense primarily related to the Industrial Gases – Americas and Industrial Gases – EMEA segments. The charges we record for cost reduction and asset actions have been excluded from segment operating income. The following table summarizes the carrying amount of the accrual for cost reduction and asset actions at 30 June 2017 : Severance and Other Benefits Asset Actions/Other Total 2016 Charge $ 34.5 $ — $ 34.5 Amount reflected in pension liability (.9 ) — (.9 ) Cash expenditures (21.6 ) — (21.6 ) Currency translation adjustment .3 — .3 30 September 2016 $ 12.3 $ — $ 12.3 2017 Charge 27.5 78.9 106.4 Noncash expenses — (74.6 ) (74.6 ) Amount reflected in pension liability (1.0 ) — (1.0 ) Amount reflected in other noncurrent liabilities — (2.2 ) (2.2 ) Cash expenditures (27.0 ) (.9 ) (27.9 ) Currency translation adjustment (.4 ) — (.4 ) 30 June 2017 $ 11.4 $ 1.2 $ 12.6

Inventories

Inventories	9 Months Ended
	Jun. 30, 2017
Inventory Disclosure [Abstract]
Inventories	6. INVENTORIES The components of inventories are as follows: 30 June 30 September 2017 2016 Finished goods $ 113.2 $ 131.3 Work in process 15.0 18.3 Raw materials, supplies and other 180.2 117.1 Total FIFO cost $ 308.4 $ 266.7 Less: Excess of FIFO cost over LIFO cost (15.1 ) (11.7 ) Inventories $ 293.3 $ 255.0 First-in, first-out (FIFO) cost approximates replacement cost.

Equity Affiliates

Equity Affiliates	9 Months Ended
	Jun. 30, 2017
Equity Method Investments and Joint Ventures [Abstract]
Equity Affiliates	7. EQUITY AFFILIATES During the third quarter of fiscal year 2017, Abdullah Hashim Industrial Gases & Equipment Co., Ltd. (AHG), a 25% ‑owned equity affiliate in our Industrial Gases – EMEA segment, completed a review of its business plan and outlook. As a result of the revised business plan, we determined there was an other-than-temporary impairment of our investment in AHG and, therefore, recorded a noncash impairment charge of $79.5 to reduce the carrying value of our investment. This charge is reflected on our consolidated income statements within “ Equity affiliates' income (loss) ” and was not deductible for tax purposes. This charge has been excluded from segment operating income. The decline in value results from expectations for lower future cash flows to be generated by AHG, primarily due to challenging economic conditions in Saudi Arabia, including the impacts of lower prices in the oil and gas industry, increased competition, and capital project growth opportunities not materializing as anticipated. The AHG investment was valued based on the results of the income and market valuation approaches. The income approach utilized a discount rate based on a market-participant, risk-adjusted weighted average cost of capital, which considers industry required rates of return on debt and equity capital for a target industry capital structure adjusted for risks associated with size and geography. Other significant estimates and assumptions that drive our updated valuation of AHG include revenue growth rates and profit margins that were lower than those upon acquisition and our assessment of AHG's business improvement plan effectiveness. Under the market approach, we estimated fair value based on market multiples of revenue and earnings derived from publicly-traded industrial gases companies engaged in similar lines of business, adjusted to reflect differences in size and growth prospects. As of 30 June 2017 , the carrying value of our investment in AHG is $68.5 and is reflected in our Industrial Gases – EMEA segment. The investment is reported in “ Investment in net assets of and advances to equity affiliates ” on our consolidated balance sheets.

Goodwill

Goodwill	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	8. GOODWILL Changes to the carrying amount of consolidated goodwill by segment for the nine months ended 30 June 2017 are as follows: Industrial Gases– Americas Industrial Gases– EMEA Industrial Gases– Asia Industrial Gases– Global Total Goodwill, net at 30 September 2016 $ 309.1 $ 380.6 $ 135.2 $ 20.2 $ 845.1 Impairment loss (145.3 ) — — — (145.3 ) Currency translation (2.3 ) 8.1 (.3 ) (.2 ) 5.3 Goodwill, net at 30 June 2017 $ 161.5 $ 388.7 $ 134.9 $ 20.0 $ 705.1 30 June 30 September 2017 2016 Goodwill, gross $ 1,106.5 $ 1,103.7 Accumulated impairment losses (401.4 ) (258.6 ) Goodwill, net $ 705.1 $ 845.1 We review goodwill for impairment annually in the fourth quarter of the fiscal year and whenever events or changes in circumstances indicate that the carrying value of goodwill might not be recoverable. As described in Note 2, New Accounting Guidance, we elected to early adopt new accounting guidance that simplifies the test for goodwill. The impairment test for goodwill involves calculating the fair value of each reporting unit and comparing that value to the carrying value. If the fair value of the reporting unit is less than its carrying value, the difference is recorded as a goodwill impairment charge, not to exceed the total amount of goodwill allocated to that reporting unit. For the first nine months of fiscal year 2017, volumes declined in our Latin America reporting unit (LASA), and overall revenue growth did not meet expectations. Due to weak economic conditions in Latin America and expectations for continued volume weakness in the Latin American countries and markets in which we operate, we lowered our long-term growth projections. We conducted an interim impairment test of the goodwill associated with LASA within the Industrial Gases – Americas segment as of 30 June 2017. As a result, we recorded a noncash goodwill impairment charge of $145.3 , which has been reflected on our consolidated income statements within “ Goodwill and intangible asset impairment charge .” This charge was not deductible for tax purposes and has been excluded from segment operating income. LASA includes assets and goodwill associated with operations in Chile and other Latin American countries. We estimated the fair value of LASA based on two valuation approaches, the income approach and the market approach. We reviewed relevant facts and circumstances in determining the weighting of the approaches. Under the income approach, we estimated the fair value of LASA based on the present value of estimated future cash flows. Cash flow projections were based on management’s estimates of revenue growth rates and EBITDA margins, taking into consideration business and market conditions for the Latin American countries and markets in which we operate. We calculated the discount rate based on a market-participant, risk-adjusted weighted average cost of capital, which considers industry‑specific rates of return on debt and equity capital for a target industry capital structure, adjusted for risks associated with business size and geography. Under the market approach, we estimated fair value based on market multiples of revenue and earnings derived from publicly-traded industrial gases companies and regional manufacturing companies, adjusted to reflect differences in size and growth prospects. Management judgment is required in the determination of each assumption utilized in the valuation model, and actual results could differ from our estimates. The accumulated impairment losses of $401.4 as of 30 June 2017 are attributable to LASA within the Industrial Gases– Americas segment and include the LASA impairment charge recorded in fiscal year 2014 as well as the impacts of currency translation on the losses. Prior to completing the LASA goodwill impairment test, we tested the recoverability of LASA’s long-lived assets and other indefinite-lived intangible assets. Refer to Note 9 , Intangible Assets, for additional information.

Intangible Assets

Intangible Assets	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible Assets	9. INTANGIBLE ASSETS The table below provides details of acquired intangible assets: 30 June 2017 30 September 2016 Gross Accumulated Amortization/ Impairment Net Gross Accumulated Net Customer relationships $ 412.8 $ (134.3 ) $ 278.5 $ 400.6 $ (118.2 ) $ 282.4 Patents and technology 13.6 (10.5 ) 3.1 13.6 (10.1 ) 3.5 Other 72.5 (35.6 ) 36.9 73.0 (33.7 ) 39.3 Total finite-lived intangible assets 498.9 (180.4 ) 318.5 487.2 (162.0 ) 325.2 Trade names and trademarks, indefinite-lived 65.6 (20.3 ) 45.3 66.2 (3.5 ) 62.7 Total Intangible Assets $ 564.5 $ (200.7 ) $ 363.8 $ 553.4 $ (165.5 ) $ 387.9 Indefinite-lived intangible assets are subject to impairment testing at least annually or more frequently if events or changes in circumstances indicate that potential impairment exists. The impairment test for indefinite-lived intangible assets involves calculating the fair value of the indefinite-lived intangible assets and comparing the fair value to their carrying value. If the fair value is less than the carrying value, the difference is recorded as an impairment loss. As discussed in Note 8 , Goodwill, in response to weak Latin America economic conditions and expectations for continued volume weakness in the Latin American countries and markets in which we operate, we lowered our long-term growth projections for the region. An interim impairment test of indefinite-lived intangibles associated with LASA was conducted as of 30 June 2017 utilizing the royalty savings method, a form of the income approach. We determined that the carrying value of trade names and trademarks was in excess of fair value, and as a result, we recorded a noncash impairment charge of $16.8 to reduce these indefinite-lived intangible assets to their fair value. This charge is reflected within “ Goodwill and intangible asset impairment charge ” on our consolidated income statements. These trade names and trademarks are included in our Industrial Gases – Americas segment. This charge has been excluded from segment operating income. We tested the recoverability of LASA long-lived assets, including finite-lived intangible assets subject to amortization, and concluded that they were recoverable from expected future undiscounted cash flows.

Financial Instruments

Financial Instruments	9 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Financial Instruments	10. FINANCIAL INSTRUMENTS Currency Price Risk Management Our earnings, cash flows, and financial position are exposed to foreign currency risk from foreign currency-denominated transactions and net investments in foreign operations. It is our policy to minimize our cash flow volatility from changes in currency exchange rates. This is accomplished by identifying and evaluating the risk that our cash flows will change in value due to changes in exchange rates and by executing the appropriate strategies necessary to manage such exposures. Our objective is to maintain economically balanced currency risk management strategies that provide adequate downside protection. Forward Exchange Contracts We enter into forward exchange contracts to reduce the cash flow exposure to foreign currency fluctuations associated with highly anticipated cash flows and certain firm commitments, such as the purchase of plant and equipment. We also enter into forward exchange contracts to hedge the cash flow exposure on intercompany loans. This portfolio of forward exchange contracts consists primarily of Euros and U.S. Dollars. The maximum remaining term of any forward exchange contract currently outstanding and designated as a cash flow hedge at 30 June 2017 is 2.0 years . Forward exchange contracts are also used to hedge the value of investments in certain foreign subsidiaries and affiliates by creating a liability in a currency in which we have a net equity position. The primary currency pair in this portfolio of forward exchange contracts is Euros and U.S. Dollars. In addition to the forward exchange contracts that are designated as hedges, we utilize forward exchange contracts that are not designated as hedges. These contracts are used to economically hedge foreign currency-denominated monetary assets and liabilities, primarily working capital. The primary objective of these forward exchange contracts is to protect the value of foreign currency-denominated monetary assets and liabilities from the effects of volatility in foreign exchange rates that might occur prior to their receipt or settlement. This portfolio of forward exchange contracts comprises many different foreign currency pairs, with a profile that changes from time to time depending on business activity and sourcing decisions. The table below summarizes our outstanding currency price risk management instruments: 30 June 2017 30 September 2016 US$ Notional Years Average Maturity US$ Notional Years Average Maturity Forward Exchange Contracts: Cash flow hedges $ 3,209.4 0.4 $ 4,130.3 0.5 Net investment hedges 707.5 3.0 968.2 2.7 Not designated 1,220.4 0.1 2,648.3 0.4 Total Forward Exchange Contracts $ 5,137.3 0.7 $ 7,746.8 0.7 The notional value of forward exchange contracts not designated in the table above includes forward contracts which were hedging intercompany loans that were repaid prior to their original maturity dates in anticipation of the spin-off of Versum. The forward exchange contracts no longer qualified as cash flow hedges due to the early repayment of the loans. We entered into additional forward exchange contracts to offset these outstanding positions to eliminate any future earnings impact. The decrease in notional value from 30 September 2016 to 30 June 2017 is primarily due to the maturity of several of the aforementioned intercompany loan hedges and their offsetting positions. In addition to the above, we use foreign currency-denominated debt to hedge the foreign currency exposures of our net investment in certain foreign subsidiaries. The designated foreign currency-denominated debt and related accrued interest included €909.1 million ( $1,038.8 ) at 30 June 2017 and €920.7 million ( $1,034.4 ) at 30 September 2016 . The designated foreign currency-denominated debt is located on the balance sheet in the long-term debt line item. Debt Portfolio Management It is our policy to identify on a continuing basis the need for debt capital and evaluate the financial risks inherent in funding the Company with debt capital. Reflecting the result of this ongoing review, the debt portfolio and hedging program are managed with the objectives and intent to (1) reduce funding risk with respect to borrowings made by us to preserve our access to debt capital and provide debt capital as required for funding and liquidity purposes, and (2) manage the aggregate interest rate risk and the debt portfolio in accordance with certain debt management parameters. Interest Rate Management Contracts We enter into interest rate swaps to change the fixed/variable interest rate mix of our debt portfolio in order to maintain the percentage of fixed- and variable-rate debt within the parameters set by management. In accordance with these parameters, the agreements are used to manage interest rate risks and costs inherent in our debt portfolio. Our interest rate management portfolio generally consists of fixed-to-floating interest rate swaps (which are designated as fair value hedges), pre-issuance interest rate swaps and treasury locks (which hedge the interest rate risk associated with anticipated fixed-rate debt issuances and are designated as cash flow hedges), and floating-to-fixed interest rate swaps (which are designated as cash flow hedges). At 30 June 2017 , the outstanding interest rate swaps were denominated in U.S. Dollars. The notional amount of the interest rate swap agreements is equal to or less than the designated debt being hedged. When interest rate swaps are used to hedge variable-rate debt, the indices of the swaps and the debt to which they are designated are the same. It is our policy not to enter into any interest rate management contracts which lever a move in interest rates on a greater than one-to-one basis. Cross Currency Interest Rate Swap Contracts We enter into cross currency interest rate swap contracts when our risk management function deems necessary. These contracts may entail both the exchange of fixed- and floating-rate interest payments periodically over the life of the agreement and the exchange of one currency for another currency at inception and at a specified future date. The contracts are used to hedge either certain net investments in foreign operations or non-functional currency cash flows related to intercompany loans. The current cross currency interest rate swap portfolio consists of fixed-to-fixed swaps primarily between U.S. Dollars and offshore Chinese Renminbi, U.S. Dollars and Chilean Pesos, and U.S. Dollars and British Pound Sterling. The following table summarizes our outstanding interest rate management contracts and cross currency interest rate swaps: 30 June 2017 30 September 2016 US$ Notional Average Pay % Average Receive % Years Average Maturity US$ Notional Average Pay % Average Receive % Years Average Maturity Interest rate swaps (fair value hedge) $ 600.0 LIBOR 2.28 % 1.5 $ 600.0 LIBOR 2.28 % 2.3 Cross currency interest rate swaps (net investment hedge) $ 493.9 3.24 % 2.39 % 1.8 $ 517.7 3.24 % 2.43 % 2.6 Cross currency interest rate swaps (cash flow hedge) $ 1,095.7 4.96 % 2.78 % 2.7 $ 1,088.9 4.77 % 2.72 % 3.3 Cross currency interest rate swaps (not designated) $ 51.2 3.38 % 1.91 % 1.7 $ 27.4 3.62 % .81 % 1.8 The table below summarizes the fair value and balance sheet location of our outstanding derivatives: Balance Sheet Location 30 June 2017 30 September 2016 Balance Sheet Location 30 June 2017 30 September 2016 Derivatives Designated as Hedging Instruments: Forward exchange contracts Other receivables $ 86.1 $ 72.3 Accrued liabilities $ 60.8 $ 44.0 Interest rate management contracts Other receivables 32.3 19.9 Accrued liabilities .1 — Forward exchange contracts Other noncurrent assets 39.1 44.4 Other noncurrent liabilities 3.9 9.1 Interest rate management contracts Other noncurrent assets 128.0 160.0 Other noncurrent liabilities 22.5 12.0 Total Derivatives Designated as Hedging Instruments $ 285.5 $ 296.6 $ 87.3 $ 65.1 Derivatives Not Designated as Hedging Instruments: Forward exchange contracts Other receivables $ 17.9 $ 77.1 Accrued liabilities $ 7.4 $ 29.5 Interest rate management contracts Other noncurrent assets 4.4 — Other noncurrent liabilities .9 .7 Total Derivatives Not Designated as Hedging Instruments $ 22.3 $ 77.1 $ 8.3 $ 30.2 Total Derivatives $ 307.8 $ 373.7 $ 95.6 $ 95.3 Refer to Note 11 , Fair Value Measurements , which defines fair value, describes the method for measuring fair value, and provides additional disclosures regarding fair value measurements. The table below summarizes the gain or loss related to our cash flow hedges, fair value hedges, net investment hedges, and derivatives not designated as hedging instruments: Three Months Ended 30 June Forward Exchange Contracts Foreign Currency Debt Other (A) Total 2017 2016 2017 2016 2017 2016 2017 2016 Cash Flow Hedges, net of tax: Net gain (loss) recognized in OCI (effective portion) $ 41.2 $ (33.7 ) $ — $ — $ (18.2 ) $ 11.5 $ 23.0 $ (22.2 ) Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion) 4.3 1.0 — — — — 4.3 1.0 Net (gain) loss reclassified from OCI to other income (expense), net (effective portion) (37.9 ) 24.2 — — 10.7 (18.8 ) (27.2 ) 5.4 Net (gain) loss reclassified from OCI to interest expense (effective portion) .4 2.6 — — .7 .9 1.1 3.5 Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion) (1.8 ) .1 — — — — (1.8 ) .1 Fair Value Hedges: Net gain (loss) recognized in interest expense (B) $ — $ — $ — $ — $ (.6 ) $ (.2 ) $ (.6 ) $ (.2 ) Net Investment Hedges, net of tax: Net gain (loss) recognized in OCI $ (23.2 ) $ 28.2 $ (44.4 ) $ 8.4 $ (9.8 ) $ 25.1 $ (77.4 ) $ 61.7 Derivatives Not Designated as Hedging Instruments: Net gain (loss) recognized in other income (expense), net (C) $ 3.7 $ (2.4 ) $ — $ — $ (.7 ) $ (.2 ) $ 3.0 $ (2.6 ) Nine Months Ended 30 June Forward Exchange Contracts Foreign Currency Debt Other (A) Total 2017 2016 2017 2016 2017 2016 2017 2016 Cash Flow Hedges, net of tax: Net gain (loss) recognized in OCI (effective portion) $ (7.1 ) $ (5.9 ) $ — $ — $ 4.9 $ 12.5 $ (2.2 ) $ 6.6 Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion) 10.1 2.4 — — — — 10.1 2.4 Net (gain) loss reclassified from OCI to other income (expense), net (effective portion) .8 (7.8 ) — — (1.7 ) (22.5 ) (.9 ) (30.3 ) Net (gain) loss reclassified from OCI to interest expense (effective portion) (2.0 ) 5.2 — — 2.1 2.5 .1 7.7 Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion) (1.5 ) (.2 ) — — — — (1.5 ) (.2 ) Fair Value Hedges: Net gain (loss) recognized in interest expense (B) $ — $ — $ — $ — $ (12.5 ) $ (2.0 ) $ (12.5 ) $ (2.0 ) Net Investment Hedges, net of tax: Net gain (loss) recognized in OCI $ 3.9 $ 21.8 $ (10.4 ) $ (1.9 ) $ (3.2 ) $ 33.5 $ (9.7 ) $ 53.4 Derivatives Not Designated as Hedging Instruments: Net gain (loss) recognized in other income (expense), net (C) $ 3.3 $ (2.6 ) $ — $ — $ (.5 ) $ (.8 ) $ 2.8 $ (3.4 ) (A) Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate and cross currency interest rate swaps. (B) The impact of fair value hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in related interest rates on outstanding debt. (C) The impact of the non-designated hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in exchange rates on assets and liabilities denominated in non-functional currencies. The amount of cash flow hedges’ net losses in accumulated other comprehensive income at 30 June 2017 that are expected to be reclassified to earnings in the next twelve months is approximately $15 . The balance to be reclassified consists primarily of losses on forward exchange contracts that hedged foreign currency revenues for a sale of equipment project. The cash flows related to all derivative contracts are reported in the operating activities section of the consolidated statements of cash flows. Credit Risk-Related Contingent Features Certain derivative instruments are executed under agreements that require us to maintain a minimum credit rating with both Standard & Poor’s and Moody’s. If our credit rating falls below this threshold, the counterparty to the derivative instruments has the right to request full collateralization on the derivatives’ net liability position. The net liability position of derivatives with credit risk-related contingent features was $22.9 as of 30 June 2017 and $11.2 as of 30 September 2016 . Because our current credit rating is above the various pre-established thresholds, no collateral has been posted on these liability positions. Counterparty Credit Risk Management We execute financial derivative transactions with counterparties that are highly rated financial institutions, all of which are investment grade at this time. Some of our underlying derivative agreements give us the right to require the institution to post collateral if its credit rating falls below the pre-established thresholds with Standard & Poor’s or Moody’s. The collateral that the counterparties would be required to post was $195.4 as of 30 June 2017 and $267.6 as of 30 September 2016 . No financial institution is required to post collateral at this time, as all have credit ratings at or above threshold.

Fair Value Measurements

Fair Value Measurements	9 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	11. FAIR VALUE MEASUREMENTS Fair value is defined as an exit price, i.e., the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. The fair value hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels as follows: Level 1 — Quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 — Inputs that are observable for the asset or liability, either directly or indirectly through market corroboration, for substantially the full term of the asset or liability. Level 3 — Inputs that are unobservable for the asset or liability based on our own assumptions (about the assumptions market participants would use in pricing the asset or liability). The methods and assumptions used to measure the fair value of financial instruments are as follows: Short-term Investments Short-term investments include time deposits with original maturities greater than three months and less than one year. The estimated fair value of the short-term investments, which approximates carrying value as of 30 June 2017 and 30 September 2016 , was determined using level 2 inputs within the fair value hierarchy. Level 2 measurements were based on current interest rates for similar investments with comparable credit risk and time to maturity. Derivatives The fair value of our interest rate management contracts and forward exchange contracts are quantified using the income approach and are based on estimates using standard pricing models. These models take into account the value of future cash flows as of the balance sheet date, discounted to a present value using discount factors that match both the time to maturity and currency of the underlying instruments. The computation of the fair values of these instruments is generally performed by the Company. These standard pricing models utilize inputs which are derived from or corroborated by observable market data such as interest rate yield curves as well as currency spot and forward rates. Therefore, the fair value of our derivatives is classified as a level 2 measurement. On an ongoing basis, we randomly test a subset of our valuations against valuations received from the transaction’s counterparty to validate the accuracy of our standard pricing models. Counterparties to these derivative contracts are highly rated financial institutions. Refer to Note 10 , Financial Instruments , for a description of derivative instruments, including details on the balance sheet line classifications. Long-term Debt The fair value of our debt is based on estimates using standard pricing models that take into account the value of future cash flows as of the balance sheet date, discounted to a present value using discount factors that match both the time to maturity and currency of the underlying instruments. These standard valuation models utilize observable market data such as interest rate yield curves and currency spot rates. Therefore, the fair value of our debt is classified as a level 2 measurement. The carrying values and fair values of financial instruments were as follows: 30 June 2017 30 September 2016 Carrying Value Fair Value Carrying Value Fair Value Assets Derivatives Forward exchange contracts $ 143.1 $ 143.1 $ 193.8 $ 193.8 Interest rate management contracts 164.7 164.7 179.9 179.9 Liabilities Derivatives Forward exchange contracts $ 72.1 $ 72.1 $ 82.6 $ 82.6 Interest rate management contracts 23.5 23.5 12.7 12.7 Long-term debt, including current portion 3,782.6 3,884.6 4,275.1 4,474.0 The carrying amounts reported in the balance sheet for cash and cash items, short-term investments, trade receivables, payables and accrued liabilities, accrued income taxes, and short-term borrowings approximate fair value due to the short-term nature of these instruments. Accordingly, these items have been excluded from the above table. The following table summarizes assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets: 30 June 2017 30 September 2016 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Assets at Fair Value Derivatives Forward exchange contracts $ 143.1 $ — $ 143.1 $ — $ 193.8 $ — $ 193.8 $ — Interest rate management contracts 164.7 — 164.7 — 179.9 — 179.9 — Total Assets at Fair Value $ 307.8 $ — $ 307.8 $ — $ 373.7 $ — $ 373.7 $ — Liabilities at Fair Value Derivatives Forward exchange contracts $ 72.1 $ — $ 72.1 $ — $ 82.6 $ — $ 82.6 $ — Interest rate management contracts 23.5 — 23.5 — 12.7 — 12.7 — Total Liabilities at Fair Value $ 95.6 $ — $ 95.6 $ — $ 95.3 $ — $ 95.3 $ — The following is a tabular presentation of nonrecurring fair value measurements along with the level within the fair value hierarchy in which the fair value measurement in its entirety falls: 31 December 2016 2017 Loss Total Level 1 Level 2 Level 3 Plant and Equipment – Continuing operations (A) $ 1.4 $ — $ — $ 1.4 $ 45.7 Plant and Equipment – Discontinued operations (A) $ 11.0 $ — $ — $ 11.0 $ 6.3 (A) We assessed the recoverability of the carrying value of assets associated with the EfW discontinued operation, including the air separation unit within continuing operations of our Industrial Gases – EMEA segment. We based our estimates primarily on an orderly liquidation valuation which resulted in losses for the difference between the orderly liquidation value and net book value of the assets as of 31 December 2016. There have been no significant updates to our estimates as of 30 June 2017 . For additional information, see Note 3 , Discontinued Operations , and Note 5 , Cost Reduction and Asset Actions . 30 June 2017 2017 Loss Total Level 1 Level 2 Level 3 Investment in Equity Affiliate (A) $ 68.5 $ — $ — $ 68.5 $ 79.5 (A) We assessed the recoverability of the carrying value of our equity investment in AHG. We estimated the fair value of our investment using weighting of the results of the income and market approaches. An impairment loss was recognized for the difference between the carrying amount and the fair value of the investment as of 30 June 2017. For additional information, see Note 7 , Equity Affiliates. During the third quarter ended 30 June 2017, we recognized a goodwill impairment charge of $145.3 and an intangible asset impairment charge of $16.8 associated with our LASA reporting unit. Refer to Note 8 , Goodwill, and Note 9 , Intangible Assets, for more information related to these charges and the associated fair value measurement methods and significant inputs/assumptions, which were classified as Level 3 since unobservable inputs were utilized in the fair value measurements.

Retirement Benefits

Retirement Benefits	9 Months Ended
	Jun. 30, 2017
Retirement Benefits [Abstract]
Retirement Benefits	12. RETIREMENT BENEFITS The components of net periodic benefit cost for the defined benefit pension and other postretirement benefit plans for the three and nine months ended 30 June 2017 and 2016 were as follows: Pension Benefits Other Benefits 2017 2016 2017 2016 Three Months Ended 30 June U.S. International U.S. International Service cost $ 7.0 $ 6.5 $ 9.1 $ 6.1 $ .2 $ .5 Interest cost 27.5 8.2 27.7 11.2 .4 .5 Expected return on plan assets (51.6 ) (18.9 ) (50.5 ) (19.8 ) — — Prior service cost amortization .6 — .7 — — — Actuarial loss amortization 20.9 13.5 21.3 8.9 — .2 Settlements 5.5 — 1.0 — — — Special termination benefits .8 — 1.4 — — — Other — .2 — .6 — — Net Periodic Benefit Cost (Total) $ 10.7 $ 9.5 $ 10.7 $ 7.0 $ .6 $ 1.2 Less: Discontinued Operations — — (1.9 ) (.2 ) — (.1 ) Net Periodic Benefit Cost (Continuing Operations) $ 10.7 $ 9.5 $ 8.8 $ 6.8 $ .6 $ 1.1 Pension Benefits Other Benefits 2017 2016 2017 2016 Nine Months Ended 30 June U.S. International U.S. International Service cost $ 22.2 $ 19.5 $ 27.4 $ 18.4 $ .9 $ 1.6 Interest cost 80.0 23.7 83.1 33.9 1.2 1.5 Expected return on plan assets (156.0 ) (55.7 ) (151.5 ) (60.1 ) — — Prior service cost amortization 1.8 (.1 ) 2.2 (.1 ) — — Actuarial loss amortization 67.9 40.6 63.9 27.2 .2 .5 Settlements 9.6 1.7 3.6 — — — Curtailment 4.3 (1.3 ) — — — — Special termination benefits 1.8 .5 2.0 — — — Other — .7 — 1.6 — — Net Periodic Benefit Cost (Total) $ 31.6 $ 29.6 $ 30.7 $ 20.9 $ 2.3 $ 3.6 Less: Discontinued Operations (.7 ) (4.1 ) (5.8 ) (1.8 ) — (.1 ) Net Periodic Benefit Cost (Continuing Operations) $ 30.9 $ 25.5 $ 24.9 $ 19.1 $ 2.3 $ 3.5 Net periodic benefit cost is primarily included in cost of sales, selling and administrative expense, and pension settlement loss on our consolidated income statements. The increase in pension expense in fiscal year 2017 is primarily related to recognition of settlement, curtailment, and special termination benefits. The amount of net periodic benefit cost capitalized in fiscal year 2017 and 2016 was not material. Certain of our pension plans provide for a lump sum benefit payment option at the time of retirement, or for corporate officers, six months after their retirement date. A participant's vested benefit is considered settled upon cash payment of the lump sum. We recognize pension settlement losses when cash payments exceed the sum of the service and interest cost components of net periodic benefit cost of the plan for the fiscal year. For the nine months ended 30 June 2017 and 2016 , we recognized pension settlement losses of $9.6 and $3.0 in results of continuing operations, respectively, to accelerate recognition of a portion of actuarial losses deferred in accumulated other comprehensive loss, primarily associated with the U.S. Supplementary Pension Plan. In connection with the disposition of the two divisions comprising the former Materials Technologies segment, we incurred settlement, curtailment, and special termination benefits totaling $6.0 for the nine months ended 30 June 2017 , $2.5 of which was reflected on the consolidated income statements as "Business separation costs" during the first quarter. The remaining costs of $3.5 were recorded in the results of discontinued operations during the second quarter of 2017 . As discussed in Note 3 , Discontinued Operations , we completed the spin-off of EMD as Versum on 1 October 2016. In connection with the spin-off, the Company transferred defined benefit pension assets and obligations to Versum, resulting in a net decrease in the underfunded status of the Company's sponsored pension plans of $24 . As a result of the transfer of unrecognized losses to Versum, accumulated other comprehensive loss, net of tax, decreased by approximately $5 . In addition, we completed the sale of PMD to Evonik on 3 January 2017. In connection with the sale, the Company transferred defined benefit pension obligations to Evonik, resulting in a net decrease in the underfunded status of the Company's sponsored pension plans of approximately $7 . For the nine months ended 30 June 2017 and 2016 , our cash contributions to funded pension plans and benefit payments under unfunded pension plans were $57.0 and $68.6 , respectively. Total contributions for fiscal year 2017 are expected to be approximately $65 to $85 . During fiscal year 2016 , total contributions were $79.3 .

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Jun. 30, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	13. COMMITMENTS AND CONTINGENCIES Litigation We are involved in various legal proceedings, including commercial, competition, environmental, health, safety, product liability, and insurance matters. In September 2010, the Brazilian Administrative Council for Economic Defense (CADE) issued a decision against our Brazilian subsidiary, Air Products Brasil Ltda., and several other Brazilian industrial gas companies for alleged anticompetitive activities. CADE imposed a civil fine of R$179.2 million (approximately $54 at 30 June 2017 ) on Air Products Brasil Ltda. This fine was based on a recommendation by a unit of the Brazilian Ministry of Justice, whose investigation began in 2003, alleging violation of competition laws with respect to the sale of industrial and medical gases. The fines are based on a percentage of our total revenue in Brazil in 2003. We have denied the allegations made by the authorities and filed an appeal in October 2010 with the Brazilian courts. On 6 May 2014, our appeal was granted and the fine against Air Products Brasil Ltda. was dismissed. CADE has appealed that ruling and the matter remains pending. We, with advice of our outside legal counsel, have assessed the status of this matter and have concluded that, although an adverse final judgment after exhausting all appeals is possible, such a judgment is not probable. As a result, no provision has been made in the consolidated financial statements. We estimate the maximum possible loss to be the full amount of the fine of R$179.2 million (approximately $54 at 30 June 2017 ) plus interest accrued thereon until final disposition of the proceedings. Other than this matter, we do not currently believe there are any legal proceedings, individually or in the aggregate, that are reasonably possible to have a material impact on our financial condition, results of operations, or cash flows. Environmental In the normal course of business, we are involved in legal proceedings under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA: the federal Superfund law); Resource Conservation and Recovery Act (RCRA); and similar state and foreign environmental laws relating to the designation of certain sites for investigation or remediation. Presently, there are approximately 32 sites on which a final settlement has not been reached where we, along with others, have been designated a potentially responsible party by the Environmental Protection Agency or are otherwise engaged in investigation or remediation, including cleanup activity at certain of our current and former manufacturing sites. We continually monitor these sites for which we have environmental exposure. Accruals for environmental loss contingencies are recorded when it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. The consolidated balance sheets at 30 June 2017 and 30 September 2016 included an accrual of $84.8 and $81.4 , respectively, primarily as part of other noncurrent liabilities. The environmental liabilities will be paid over a period of up to 30 years . We estimate the exposure for environmental loss contingencies to range from $84 to a reasonably possible upper exposure of $98 as of 30 June 2017 . Actual costs to be incurred at identified sites in future periods may vary from the estimates, given inherent uncertainties in evaluating environmental exposures. Using reasonably possible alternative assumptions of the exposure level could result in an increase to the environmental accrual. Due to the inherent uncertainties related to environmental exposures, a significant increase to the reasonably possible upper exposure level could occur if a new site is designated, the scope of remediation is increased, a different remediation alternative is identified, or a significant increase in our proportionate share occurs. We do not expect that any sum we may have to pay in connection with environmental matters in excess of the amounts recorded or disclosed above would have a material adverse impact on our financial position or results of operations in any one year. PACE At 30 June 2017 , $29.2 of the environmental accrual was related to the Pace facility. In 2006, we sold our Amines business, which included operations at Pace, Florida, and recognized a liability for retained environmental obligations associated with remediation activities at Pace. We are required by the Florida Department of Environmental Protection (FDEP) and the United States Environmental Protection Agency (USEPA) to continue our remediation efforts. We estimated that it would take 20 years to complete the groundwater remediation, and the costs through completion were estimated to range from $42 to $52 . As no amount within the range was a better estimate than another, we recognized a pretax expense in fiscal 2006 of $42 as a component of income from discontinued operations and recorded an environmental accrual of $42 in continuing operations on the consolidated balance sheets. There has been no change to the estimated exposure range related to the Pace facility. We have implemented many of the remedial corrective measures at the Pace facility required under 1995 Consent Orders issued by the FDEP and the USEPA. Contaminated soils have been bioremediated, and the treated soils have been secured in a lined on-site disposal cell. Several groundwater recovery systems have been installed to contain and remove contamination from groundwater. We completed an extensive assessment of the site to determine how well existing measures are working, what additional corrective measures may be needed, and whether newer remediation technologies that were not available in the 1990s might be suitable to more quickly and effectively remove groundwater contaminants. Based on assessment results, we completed a focused feasibility study that has identified alternative approaches that may more effectively remove contaminants. We continue to review alternative remedial approaches with the FDEP and recently started additional field work to support the design of an improved groundwater recovery network with the objective of targeting areas of higher contaminant concentration and avoiding areas of high groundwater iron which has proven to be a significant operability issue for the project. In the first quarter of 2015, we entered into a new Consent Order with the FDEP requiring us to continue our remediation efforts at the Pace facility. The costs we are incurring under the new Consent Order are expected to be consistent with our previous estimates. PIEDMONT At 30 June 2017 , $16.9 of the environmental accrual was related to the Piedmont site. On 30 June 2008, we sold our Elkton, Maryland, and Piedmont, South Carolina, production facilities and the related North American atmospheric emulsions and global pressure sensitive adhesives businesses. In connection with the sale, we recognized a liability for retained environmental obligations associated with remediation activities at the Piedmont site. This site is under active remediation for contamination caused by an insolvent prior owner. We are required by the South Carolina Department of Health and Environmental Control (SCDHEC) to address both contaminated soil and groundwater. Numerous areas of soil contamination have been addressed, and contaminated groundwater is being recovered and treated. On 13 June 2017, the SCDHEC issued its final approval to the site-wide feasibility study, and with that we will be moving towards a record of decision for the Piedmont site and into the final remedial design phase of this project. We estimate that it will take until 2019 to complete source area remediation with groundwater recovery and treatment, continuing through 2029 . Thereafter, we are expecting this site to go into a state of monitored natural attenuation through 2047. We recognized a pretax expense in 2008 of $24 as a component of income from discontinued operations and recorded an environmental liability of $24 in continuing operations on the consolidated balance sheets. There have been no significant changes to the estimated exposure. PASADENA At 30 June 2017 , $12.1 of the environmental accrual was related to the Pasadena site. During the fourth quarter of 2012, management committed to permanently shutting down our polyurethane intermediates (PUI) production facility in Pasadena, Texas. In shutting down and dismantling the facility, we have undertaken certain obligations related to soil and groundwater contaminants. We have been pumping and treating groundwater to control off-site contaminant migration in compliance with regulatory requirements and under the approval of the Texas Commission on Environmental Quality (TCEQ). We estimate that the pump and treat system will continue to operate until 2042 . We plan to perform additional work to address other environmental obligations at the site. This additional work includes remediating, as required, impacted soils, investigating groundwater west of the former PUI facility, performing post closure care for two closed RCRA surface impoundment units, and establishing engineering controls. In 2012, we estimated the total exposure at this site to be $13 . There have been no significant changes to the estimated exposure.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-Based Compensation	14. SHARE-BASED COMPENSATION We have various share-based compensation programs, which include deferred stock units, stock options, and restricted stock. During the nine months ended 30 June 2017 , we granted market-based and time-based deferred stock units. Under all programs, the terms of the awards are fixed at the grant date. We issue shares from treasury stock upon the payout of deferred stock units, the exercise of stock options, and the issuance of restricted stock awards. As of 30 June 2017 , there were 4,820,627 shares available for future grant under our Long-Term Incentive Plan (LTIP), which is shareholder approved. As discussed in Note 3 , Discontinued Operations , we completed the separation of EMD through the spin-off of Versum on 1 October 2016. In connection with the spin-off, the Company adjusted the number of deferred stock units and stock options pursuant to existing anti-dilution provisions in the LTIP, to preserve the intrinsic value of the awards immediately before and after the separation. The outstanding awards will continue to vest over the original vesting period defined at the grant date. Outstanding awards at the time of spin-off were primarily converted into awards of the holder’s employer following the separation. The adjustment to the awards did not result in incremental fair value and no incremental compensation expense was recorded related to the conversion of these awards. Share-based compensation cost recognized in continuing operations on the consolidated income statements is summarized below: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 Before-Tax Share-Based Compensation Cost $ 8.9 $ 7.5 $ 27.4 $ 23.9 Income Tax Benefit (3.2 ) (2.9 ) (9.5 ) (8.4 ) After-Tax Share-Based Compensation Cost $ 5.7 $ 4.6 $ 17.9 $ 15.5 Before-tax share-based compensation cost is primarily included in selling and administrative expense on our consolidated income statements. The amount of share-based compensation cost capitalized in fiscal year 2017 and 2016 was not material. Deferred Stock Units During the nine months ended 30 June 2017 , we granted 117,692 market-based deferred stock units. The market-based deferred stock units are earned out at the end of a performance period beginning 1 October 2016 and ending 30 September 2019, conditioned on the level of the Company’s total shareholder return in relation to a defined peer group over the three ‑year performance period. The market-based deferred stock units had an estimated grant-date fair value of $156.87 per unit, which was estimated using a Monte Carlo simulation model. The model utilizes multiple input variables that determine the probability of satisfying the market condition stipulated in the grant and calculates the fair value of the awards. We generally expense the grant-date fair value of these awards on a straight line basis over the vesting period. The calculation of the fair value of market-based deferred stock units used the following assumptions: Expected volatility 20.6 % Risk-free interest rate 1.4 % Expected dividend yield 2.5 % In addition, during the nine months ended 30 June 2017 , we granted 160,389 time-based deferred stock units at a weighted average grant-date fair value of $143.66 .

Equity

Equity	9 Months Ended
	Jun. 30, 2017
Stockholders' Equity Note [Abstract]
Equity	15. EQUITY The following is a summary of the changes in total equity: Three Months Ended 30 June 2017 2016 Air Products Non- controlling Interests Total Equity Air Products Non- controlling Interests Total Equity Balance at 31 March $ 9,317.4 $ 102.8 $ 9,420.2 $ 6,916.6 $ 136.5 $ 7,053.1 Net income 101.9 2.2 104.1 346.8 7.3 354.1 Other comprehensive income (loss) 176.6 .2 176.8 (79.0 ) (.7 ) (79.7 ) Dividends on common stock (per share $0.95, $0.86) (207.0 ) — (207.0 ) (186.2 ) — (186.2 ) Dividends to noncontrolling interests — (7.9 ) (7.9 ) — (8.4 ) (8.4 ) Share-based compensation 8.9 — 8.9 7.5 — 7.5 Treasury shares for stock option and award plans 17.8 — 17.8 32.0 — 32.0 Tax benefit of stock option and award plans (A) — — — 6.8 — 6.8 Other equity transactions (3.2 ) .2 (3.0 ) .9 .1 1.0 Balance at 30 June $ 9,412.4 $ 97.5 $ 9,509.9 $ 7,045.4 $ 134.8 $ 7,180.2 Nine Months Ended 30 June 2017 2016 Air Products Non- controlling Interests Total Equity Air Products Non- controlling Interests Total Equity Balance at 30 September $ 7,079.6 $ 133.8 $ 7,213.4 $ 7,249.0 $ 132.1 $ 7,381.1 Net income 2,531.7 14.5 2,546.2 237.1 23.5 260.6 Other comprehensive income 159.7 2.1 161.8 .2 2.1 2.3 Dividends on common stock (per share $2.76, $2.53) (601.0 ) — (601.0 ) (546.7 ) — (546.7 ) Dividends to noncontrolling interests — (19.5 ) (19.5 ) — (23.2 ) (23.2 ) Share-based compensation 27.4 — 27.4 23.9 — 23.9 Treasury shares for stock option and award plans 25.5 — 25.5 62.8 — 62.8 Tax benefit of stock option and award plans (A) — — — 16.5 — 16.5 Spin-off of Versum 186.5 (33.9 ) 152.6 — — — Cumulative change in accounting principle (A) 8.8 — 8.8 — — — Other equity transactions (5.8 ) .5 (5.3 ) 2.6 .3 2.9 Balance at 30 June $ 9,412.4 $ 97.5 $ 9,509.9 $ 7,045.4 $ 134.8 $ 7,180.2 (A) Refer to Note 2, New Accounting Guidance, for information concerning the implementation and impact of new accounting guidance.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	9 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Loss	16. ACCUMULATED OTHER COMPREHENSIVE LOSS The tables below summarize changes in accumulated other comprehensive loss (AOCL), net of tax, attributable to Air Products for the three and nine months ended 30 June 2017 : Derivatives qualifying as hedges Foreign currency translation adjustments Pension and postretirement benefits Total Balance at 31 March 2017 $ (58.5 ) $ (1,027.7 ) $ (1,307.5 ) $ (2,393.7 ) Other comprehensive income before reclassifications 23.0 141.4 .1 164.5 Amounts reclassified from AOCL (23.6 ) 8.2 27.7 12.3 Net current period other comprehensive income (loss) (.6 ) 149.6 27.8 176.8 Amount attributable to noncontrolling interests — .2 — .2 Balance at 30 June 2017 $ (59.1 ) $ (878.3 ) $ (1,279.7 ) $ (2,217.1 ) Derivatives qualifying as hedges Foreign currency translation adjustments Pension and postretirement benefits Total Balance at 30 September 2016 $ (65.0 ) $ (949.3 ) $ (1,374.0 ) $ (2,388.3 ) Other comprehensive income (loss) before reclassifications (2.2 ) 9.8 3.9 11.5 Amounts reclassified from AOCL 7.8 57.3 85.2 150.3 Net current period other comprehensive income 5.6 67.1 89.1 161.8 Spin-off of Versum .2 6.0 5.3 11.5 Amount attributable to noncontrolling interests (.1 ) 2.1 .1 2.1 Balance at 30 June 2017 $ (59.1 ) $ (878.3 ) $ (1,279.7 ) $ (2,217.1 ) The table below summarizes the reclassifications out of accumulated other comprehensive loss and the affected line item on the consolidated income statements: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 (Gain) Loss on Cash Flow Hedges, net of tax Sales/Cost of sales $ 4.3 $ 1.0 $ 10.1 $ 2.4 Other income (expense), net (29.0 ) 5.5 (2.4 ) (30.5 ) Interest expense 1.1 3.5 .1 7.7 Total (Gain) Loss on Cash Flow Hedges, net of tax $ (23.6 ) $ 10.0 $ 7.8 $ (20.4 ) Currency Translation Adjustment Cost reduction and asset actions (A) $ 8.2 $ — $ 8.2 $ — Income (loss) from discontinued operations, net of tax (B) — (.1 ) 49.1 2.7 Total Currency Translation Adjustment $ 8.2 $ (.1 ) $ 57.3 $ 2.7 Pension and Postretirement Benefits, net of tax (C) $ 27.7 $ 21.6 $ 85.2 $ 65.4 (A) Impact relates to the planned sale of a non-industrial gas hardgoods business in the Industrial Gases – Americas segment. (B) The fiscal year 2017 impact relates to the sale of PMD during the second quarter. The fiscal year 2016 impact primarily relates to the sale of an equity affiliate in the first quarter. (C) The components include items such as prior service cost amortization, actuarial loss amortization, and settlements and are reflected in net periodic benefit cost. Refer to Note 12 , Retirement Benefits .

Earnings per Share

Earnings per Share	9 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Earnings per Share	17. EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 Numerator Income from continuing operations $ 104.2 $ 250.3 $ 660.2 $ 810.1 Income (Loss) from discontinued operations (2.3 ) 96.5 1,871.5 (573.0 ) Net Income Attributable to Air Products $ 101.9 $ 346.8 $ 2,531.7 $ 237.1 Denominator (in millions) Weighted average common shares — Basic 218.1 216.6 217.9 216.1 Effect of dilutive securities Employee stock option and other award plans 1.7 1.9 1.9 1.9 Weighted average common shares — Diluted 219.8 218.5 219.8 218.0 Basic Earnings Per Common Share Attributable to Air Products Income from continuing operations $ .48 $ 1.16 $ 3.03 $ 3.75 Income (Loss) from discontinued operations (.01 ) .44 8.59 (2.65 ) Net Income Attributable to Air Products $ .47 $ 1.60 $ 11.62 $ 1.10 Diluted Earnings Per Common Share Attributable to Air Products Income from continuing operations $ .47 $ 1.15 $ 3.00 $ 3.72 Income (Loss) from discontinued operations (.01 ) .44 8.52 (2.63 ) Net Income Attributable to Air Products $ .46 $ 1.59 $ 11.52 $ 1.09 For the three and nine months ended 30 June 2017 , there were no antidilutive outstanding share-based awards. Outstanding share-based awards of .2 million shares were antidilutive and therefore excluded from the computation of diluted earnings per share for the three and nine months ended 30 June 2016 .

Supplemental Information

Supplemental Information	9 Months Ended
	Jun. 30, 2017
Supplemental Information [Abstract]
Supplemental Information	18. SUPPLEMENTAL INFORMATION Cash Paid for Taxes (Net of Cash Refunds) On a total company basis, income tax payments, net of refunds, were $1,109.8 and $330.1 for the nine months ended 30 June 2017 and 2016 , respectively. Credit Agreement On 31 March 2017, we entered into a five-year $2,500.0 revolving credit agreement with a syndicate of banks (the “2017 Credit Agreement”), under which senior unsecured debt is available to both the Company and certain of its subsidiaries. The 2017 Credit Agreement provides a source of liquidity for the Company and supports its commercial paper program. The Company’s only financial covenant is a maximum ratio of total debt to total capitalization (total debt plus total equity) no greater than 70%. No borrowings were outstanding under the 2017 Credit Agreement as of 30 June 2017 . The 2017 Credit Agreement terminates and replaces our previous $2,690.0 revolving credit agreement (the “2013 Credit Agreement”), which was to mature 30 April 2018. No borrowings were outstanding under the previous agreement at the time of its termination, and no early termination penalties were incurred. Subsequent Event On 20 July 2017, the Board of Directors declared the fourth quarter dividend of $ .95 . The dividend is payable on 13 November 2017 to shareholders of record at the close of business on 10 October 2017.

Business Segment Information

Business Segment Information	9 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Business Segment Information	19. BUSINESS SEGMENT INFORMATION Our reporting segments reflect the manner in which our chief operating decision maker reviews results and allocates resources. Except in the Corporate and other segment, each reporting segment meets the definition of an operating segment and does not include the aggregation of multiple operating segments. Our liquefied natural gas (LNG) and helium storage and distribution sale of equipment businesses are aggregated within the Corporate and other segment. Our reporting segments are: • Industrial Gases – Americas • Industrial Gases – EMEA (Europe, Middle East, and Africa) • Industrial Gases – Asia • Industrial Gases – Global • Corporate and other The results of the Corporate and other segment include stranded costs related to the presentation of the two divisions comprising the former Materials Technologies segment as discontinued operations. The majority of these costs are reimbursed to Air Products pursuant to short-term transition services agreements under which Air Products will provide transition services to Versum for EMD and to Evonik for PMD. The reimbursement has been reflected on the consolidated income statements within “Other income (expense), net.” Industrial Gases– Americas Industrial Gases– EMEA Industrial Gases– Asia Industrial Gases– Global Corporate and other Segment Total Three Months Ended 30 June 2017 Sales $ 930.1 $ 451.7 $ 538.3 $ 187.4 $ 14.4 $ 2,121.9 Operating income (loss) 236.2 94.1 149.1 27.9 (44.4 ) 462.9 Depreciation and amortization 117.0 45.1 49.6 2.3 2.9 216.9 Equity affiliates' income 14.1 15.7 12.5 .3 — 42.6 Three Months Ended 30 June 2016 Sales $ 832.3 $ 428.7 $ 449.0 $ 150.8 $ 53.7 $ 1,914.5 Operating income (loss) 234.0 104.0 118.7 (13.9 ) (24.5 ) 418.3 Depreciation and amortization 112.1 45.1 49.5 2.0 4.8 213.5 Equity affiliates' income 16.0 11.3 14.8 — — 42.1 Nine Months Ended 30 June 2017 Sales $ 2,684.1 $ 1,265.6 $ 1,412.5 $ 551.8 $ 70.5 $ 5,984.5 Operating income (loss) 684.5 268.6 379.2 58.9 (114.4 ) 1,276.8 Depreciation and amortization 344.8 128.9 145.6 6.0 9.5 634.8 Equity affiliates' income 41.8 33.5 38.9 .6 — 114.8 Nine Months Ended 30 June 2016 Sales $ 2,466.7 $ 1,290.1 $ 1,271.5 $ 341.7 $ 188.2 $ 5,558.2 Operating income (loss) 669.1 286.3 341.0 (44.0 ) (57.9 ) 1,194.5 Depreciation and amortization 330.9 140.1 150.2 5.9 15.0 642.1 Equity affiliates' income (loss) 38.2 26.1 43.9 (.5 ) — 107.7 Total Assets 30 June 2017 $ 5,765.6 $ 3,205.4 $ 4,262.6 $ 283.6 $ 4,326.8 $ 17,844.0 30 September 2016 5,896.7 3,178.6 4,232.7 367.6 2,384.5 16,060.1 The sales information noted above relates to external customers only. All intersegment sales are eliminated in consolidation. For the three and nine months ended 30 June 2017 , the Industrial Gases – Global segment had intersegment sales of $57.4 and $179.4 , respectively. For the three and nine months ended 30 June 2016 , the Industrial Gases – Global segment had intersegment sales of $63.0 and $174.2 , respectively. These sales are generally transacted at market pricing. For all other segments, intersegment sales are not material for all periods presented. Equipment manufactured for our industrial gases segments is generally transferred at cost and not reflected as an intersegment sale. Changes in estimates on projects accounted for under the percentage-of-completion method favorably impacted operating income by approximately $15 and $27 during the three and nine months ended 30 June 2017 . Below is a reconciliation of segment total operating income to consolidated operating income: Three Months Ended Nine Months Ended 30 June 30 June Operating Income 2017 2016 2017 2016 Segment total $ 462.9 $ 418.3 $ 1,276.8 $ 1,194.5 Business separation costs — (9.5 ) (30.2 ) (28.9 ) Cost reduction and asset actions (42.7 ) (13.2 ) (103.0 ) (23.9 ) Pension settlement loss (5.5 ) (1.0 ) (9.6 ) (3.0 ) Goodwill and intangible asset impairment charge (162.1 ) — (162.1 ) — Consolidated Total $ 252.6 $ 394.6 $ 971.9 $ 1,138.7 Below is a reconciliation of segment total equity affiliates' income to consolidated equity affiliates' income (loss) : Three Months Ended Nine Months Ended 30 June 30 June Equity Affiliates' Income (Loss) 2017 2016 2017 2016 Segment total $ 42.6 $ 42.1 $ 114.8 $ 107.7 Equity method investment impairment charge (79.5 ) — (79.5 ) — Consolidated Total $ (36.9 ) $ 42.1 $ 35.3 $ 107.7 Below is a reconciliation of segment total assets to consolidated total assets: 30 June 30 September Total Assets 2017 2016 Segment total $ 17,844.0 $ 16,060.1 Discontinued operations 9.8 1,968.5 Consolidated Total $ 17,853.8 $ 18,028.6

Discontinued Operations (Tables

Discontinued Operations (Tables)	9 Months Ended
	Jun. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Schedule of Operating Results and Assets and Liabilities of Discontinued Operations	The following table summarizes the carrying amount of the accrual for our actions to dispose of the EfW business at 30 June 2017 : Asset Actions Contract Actions/Other Total Loss on disposal of business $ 913.5 $ 32.2 $ 945.7 Noncash expenses (913.5 ) — (913.5 ) Cash expenditures — (18.6 ) (18.6 ) Currency translation adjustment — (1.4 ) (1.4 ) 30 September 2016 $ — $ 12.2 $ 12.2 Loss on disposal of business 6.3 53.0 59.3 Noncash expenses (6.3 ) — (6.3 ) Amount reflected in other noncurrent liabilities — (61.5 ) (61.5 ) Cash expenditures — (1.4 ) (1.4 ) Currency translation adjustments — 3.4 3.4 30 June 2017 $ — $ 5.7 $ 5.7 The loss on disposal was recorded as a component of discontinued operations. The amount reflected in other noncurrent liabilities relates to land lease obligations and is recorded in continuing operations. The remaining accrual is reflected in current liabilities of discontinued operations. The following tables detail the businesses and major line items that comprise income from discontinued operations, net of tax, on the consolidated income statements for the three and nine months ended 30 June 2017 : Three Months Ended 30 June 2017 Total Discontinued Operations (A) Cost of sales $ 2.3 Selling and administrative .3 Other income (expense), net (.8 ) Loss Before Taxes (3.4 ) Income tax provision (1.1 ) Loss from Discontinued Operations, net of tax $ (2.3 ) (A) Activity primarily relates to EfW. Nine Months Ended 30 June 2017 Total Performance Energy- Discontinued Materials from-Waste (A) Operations Sales $ 254.8 $ — $ 254.8 Cost of sales 182.3 11.9 194.2 Selling and administrative 22.5 .5 23.0 Research and development 5.1 — 5.1 Other income (expense), net .3 (.9 ) (.6 ) Operating Income (Loss) 45.2 (13.3 ) 31.9 Equity affiliates’ income .3 — .3 Income (Loss) Before Taxes 45.5 (13.3 ) 32.2 Income tax provision (B) (50.8 ) (3.1 ) (53.9 ) Income (Loss) From Operations of Discontinued Operations, net of tax 96.3 (10.2 ) 86.1 Gain (Loss) on Disposal, net of tax (C) 1,832.5 (47.1 ) 1,785.4 Income (Loss) from Discontinued Operations, net of tax $ 1,928.8 $ (57.3 ) $ 1,871.5 (A) The loss from operations of discontinued operations for EfW primarily relates to land lease obligations, administrative costs, and costs incurred for ongoing project exit activities. (B) As a result of the expected gain on sale of PMD, we released valuation allowances related to capital loss and net operating loss carryforwards during the first quarter of 2017 that favorably impacted our income tax provision within discontinued operations by approximately $ 66 . (C) After-tax gain on sale of $1,832.5 includes expense for income tax reserves for uncertain tax positions of $26.1 gross ( $19.1 net) in various jurisdictions. The following tables detail the businesses and major line items that comprise income from discontinued operations, net of tax, on the consolidated income statements for the three and nine months ended 30 June 2016 : Three Months Ended 30 June 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste (A) Operations Sales $ 240.0 $ 279.9 $ — $ 519.9 Cost of sales 130.9 188.2 17.6 336.7 Selling and administrative 22.8 20.7 .7 44.2 Research and development 10.6 4.9 .1 15.6 Other income (expense), net (.8 ) (.6 ) 8.2 6.8 Operating Income (Loss) 74.9 65.5 (10.2 ) 130.2 Equity affiliates’ income — .5 — .5 Income (Loss) Before Taxes (B) 74.9 66.0 (10.2 ) 130.7 Income tax provision 16.8 16.8 (1.3 ) 32.3 Income (Loss) from Operations of Discontinued Operations, net of tax 58.1 49.2 (8.9 ) 98.4 Net Income Attributable to Noncontrolling Interests of Discontinued Operations 1.9 — — 1.9 Net Income (Loss) From Discontinued Operations, net of tax $ 56.2 $ 49.2 $ (8.9 ) $ 96.5 Nine Months Ended 30 June 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste (A) Operations Sales $ 713.3 $ 789.9 $ — $ 1,503.2 Cost of sales 385.8 539.1 22.9 947.8 Selling and administrative 61.2 59.2 2.3 122.7 Research and development 30.2 14.8 .8 45.8 Other income (expense), net 4.2 3.1 (5.5 ) 1.8 Operating Income (Loss) 240.3 179.9 (31.5 ) 388.7 Equity affiliates’ income .2 .9 — 1.1 Income (Loss) Before Taxes (B) 240.5 180.8 (31.5 ) 389.8 Income tax provision 58.4 53.7 (1.9 ) 110.2 Income (Loss) From Operations of Discontinued Operations 182.1 127.1 (29.6 ) 279.6 Loss on Disposal, net of tax — — (846.6 ) (846.6 ) Income (Loss) from Operations of Discontinued Operations, net of tax 182.1 127.1 (876.2 ) (567.0 ) Net Income Attributable to Noncontrolling Interests of Discontinued Operations 6.0 — — 6.0 Net Income (Loss) From Discontinued Operations, net of tax $ 176.1 $ 127.1 $ (876.2 ) $ (573.0 ) (A) The loss from operations of discontinued operations for EfW primarily relates to project suspension costs, land lease obligations, and administrative costs. (B) For the three and nine months ended 30 June 2016 , income before taxes from operations of discontinued operations attributable to Air Products was $ 128.3 and $382.4 , respectively. The following table details the major line items that comprise total assets and total liabilities of discontinued operations on the consolidated balance sheets as of 30 June 2017 : 30 June 2017 Total Performance Energy- Discontinued Materials from-Waste Operations Assets Current Assets Plant and equipment, net $ — $ 9.8 $ 9.8 Total Current Assets — 9.8 9.8 Total Assets $ — $ 9.8 $ 9.8 Liabilities Current Liabilities Payables and accrued liabilities (A) $ 10.4 $ 6.1 $ 16.5 Total Current Liabilities 10.4 6.1 16.5 Total Liabilities $ 10.4 $ 6.1 $ 16.5 (A) Includes reserves associated with disposition of businesses. The following table details the major line items that comprise total assets and total liabilities of discontinued operations on the consolidated balance sheets as of 30 September 2016 : 30 September 2016 Total Electronic Performance Energy- Discontinued Materials Materials from-Waste Operations Assets Current Assets Cash and cash items $ 170.6 $ 37.5 $ — $ 208.1 Trade receivables, net 134.7 159.0 — 293.7 Inventories 138.1 226.8 — 364.9 Plant and equipment, net — — 18.2 18.2 Other receivables and current assets 34.5 5.6 1.2 41.3 Total Current Assets 477.9 428.9 19.4 926.2 Plant and equipment, net 296.5 296.5 — 593.0 Goodwill, net 180.0 125.0 — 305.0 Intangible assets, net 75.1 25.0 — 100.1 Other noncurrent assets 37.5 6.7 — 44.2 Total Noncurrent Assets 589.1 453.2 — 1,042.3 Total Assets $ 1,067.0 $ 882.1 $ 19.4 $ 1,968.5 Liabilities Current Liabilities Payables and accrued liabilities $ 85.8 $ 72.5 $ 19.0 $ 177.3 Accrued income taxes 22.7 6.0 — 28.7 Current portion of long-term debt 5.8 — — 5.8 Total Current Liabilities 114.3 78.5 19.0 211.8 Long-term debt 981.8 — — 981.8 Deferred income taxes 50.3 6.4 — 56.7 Other noncurrent liabilities 47.4 9.6 — 57.0 Total Noncurrent Liabilities 1,079.5 16.0 — 1,095.5 Total Liabilities $ 1,193.8 $ 94.5 $ 19.0 $ 1,307.3

Cost Reduction and Asset Acti28

Cost Reduction and Asset Actions (Tables)	9 Months Ended
	Jun. 30, 2017
Restructuring and Related Activities [Abstract]
Summary of Carrying Amount of Accrual for Cost Reduction and Asset Actions	The following table summarizes the carrying amount of the accrual for cost reduction and asset actions at 30 June 2017 : Severance and Other Benefits Asset Actions/Other Total 2016 Charge $ 34.5 $ — $ 34.5 Amount reflected in pension liability (.9 ) — (.9 ) Cash expenditures (21.6 ) — (21.6 ) Currency translation adjustment .3 — .3 30 September 2016 $ 12.3 $ — $ 12.3 2017 Charge 27.5 78.9 106.4 Noncash expenses — (74.6 ) (74.6 ) Amount reflected in pension liability (1.0 ) — (1.0 ) Amount reflected in other noncurrent liabilities — (2.2 ) (2.2 ) Cash expenditures (27.0 ) (.9 ) (27.9 ) Currency translation adjustment (.4 ) — (.4 ) 30 June 2017 $ 11.4 $ 1.2 $ 12.6

Inventories (Tables)

Inventories (Tables)	9 Months Ended
	Jun. 30, 2017
Inventory Disclosure [Abstract]
Schedule of Inventory	The components of inventories are as follows: 30 June 30 September 2017 2016 Finished goods $ 113.2 $ 131.3 Work in process 15.0 18.3 Raw materials, supplies and other 180.2 117.1 Total FIFO cost $ 308.4 $ 266.7 Less: Excess of FIFO cost over LIFO cost (15.1 ) (11.7 ) Inventories $ 293.3 $ 255.0

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Changes to the carrying amount of consolidated goodwill by segment for the nine months ended 30 June 2017 are as follows: Industrial Gases– Americas Industrial Gases– EMEA Industrial Gases– Asia Industrial Gases– Global Total Goodwill, net at 30 September 2016 $ 309.1 $ 380.6 $ 135.2 $ 20.2 $ 845.1 Impairment loss (145.3 ) — — — (145.3 ) Currency translation (2.3 ) 8.1 (.3 ) (.2 ) 5.3 Goodwill, net at 30 June 2017 $ 161.5 $ 388.7 $ 134.9 $ 20.0 $ 705.1 30 June 30 September 2017 2016 Goodwill, gross $ 1,106.5 $ 1,103.7 Accumulated impairment losses (401.4 ) (258.6 ) Goodwill, net $ 705.1 $ 845.1

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Jun. 30, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Finite-Lived Intangible Assets	The table below provides details of acquired intangible assets: 30 June 2017 30 September 2016 Gross Accumulated Amortization/ Impairment Net Gross Accumulated Net Customer relationships $ 412.8 $ (134.3 ) $ 278.5 $ 400.6 $ (118.2 ) $ 282.4 Patents and technology 13.6 (10.5 ) 3.1 13.6 (10.1 ) 3.5 Other 72.5 (35.6 ) 36.9 73.0 (33.7 ) 39.3 Total finite-lived intangible assets 498.9 (180.4 ) 318.5 487.2 (162.0 ) 325.2 Trade names and trademarks, indefinite-lived 65.6 (20.3 ) 45.3 66.2 (3.5 ) 62.7 Total Intangible Assets $ 564.5 $ (200.7 ) $ 363.8 $ 553.4 $ (165.5 ) $ 387.9
Schedule of Indefinite-Lived Intangible Assets	The table below provides details of acquired intangible assets: 30 June 2017 30 September 2016 Gross Accumulated Amortization/ Impairment Net Gross Accumulated Net Customer relationships $ 412.8 $ (134.3 ) $ 278.5 $ 400.6 $ (118.2 ) $ 282.4 Patents and technology 13.6 (10.5 ) 3.1 13.6 (10.1 ) 3.5 Other 72.5 (35.6 ) 36.9 73.0 (33.7 ) 39.3 Total finite-lived intangible assets 498.9 (180.4 ) 318.5 487.2 (162.0 ) 325.2 Trade names and trademarks, indefinite-lived 65.6 (20.3 ) 45.3 66.2 (3.5 ) 62.7 Total Intangible Assets $ 564.5 $ (200.7 ) $ 363.8 $ 553.4 $ (165.5 ) $ 387.9

Financial Instruments (Tables)

Financial Instruments (Tables)	9 Months Ended
	Jun. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Notional Amounts of Outstanding Derivatives	The following table summarizes our outstanding interest rate management contracts and cross currency interest rate swaps: 30 June 2017 30 September 2016 US$ Notional Average Pay % Average Receive % Years Average Maturity US$ Notional Average Pay % Average Receive % Years Average Maturity Interest rate swaps (fair value hedge) $ 600.0 LIBOR 2.28 % 1.5 $ 600.0 LIBOR 2.28 % 2.3 Cross currency interest rate swaps (net investment hedge) $ 493.9 3.24 % 2.39 % 1.8 $ 517.7 3.24 % 2.43 % 2.6 Cross currency interest rate swaps (cash flow hedge) $ 1,095.7 4.96 % 2.78 % 2.7 $ 1,088.9 4.77 % 2.72 % 3.3 Cross currency interest rate swaps (not designated) $ 51.2 3.38 % 1.91 % 1.7 $ 27.4 3.62 % .81 % 1.8 The table below summarizes our outstanding currency price risk management instruments: 30 June 2017 30 September 2016 US$ Notional Years Average Maturity US$ Notional Years Average Maturity Forward Exchange Contracts: Cash flow hedges $ 3,209.4 0.4 $ 4,130.3 0.5 Net investment hedges 707.5 3.0 968.2 2.7 Not designated 1,220.4 0.1 2,648.3 0.4 Total Forward Exchange Contracts $ 5,137.3 0.7 $ 7,746.8 0.7
Fair Value of Derivative Instruments	The table below summarizes the fair value and balance sheet location of our outstanding derivatives: Balance Sheet Location 30 June 2017 30 September 2016 Balance Sheet Location 30 June 2017 30 September 2016 Derivatives Designated as Hedging Instruments: Forward exchange contracts Other receivables $ 86.1 $ 72.3 Accrued liabilities $ 60.8 $ 44.0 Interest rate management contracts Other receivables 32.3 19.9 Accrued liabilities .1 — Forward exchange contracts Other noncurrent assets 39.1 44.4 Other noncurrent liabilities 3.9 9.1 Interest rate management contracts Other noncurrent assets 128.0 160.0 Other noncurrent liabilities 22.5 12.0 Total Derivatives Designated as Hedging Instruments $ 285.5 $ 296.6 $ 87.3 $ 65.1 Derivatives Not Designated as Hedging Instruments: Forward exchange contracts Other receivables $ 17.9 $ 77.1 Accrued liabilities $ 7.4 $ 29.5 Interest rate management contracts Other noncurrent assets 4.4 — Other noncurrent liabilities .9 .7 Total Derivatives Not Designated as Hedging Instruments $ 22.3 $ 77.1 $ 8.3 $ 30.2 Total Derivatives $ 307.8 $ 373.7 $ 95.6 $ 95.3
Schedule of Gain/Loss Related to Derivative Instruments	The table below summarizes the gain or loss related to our cash flow hedges, fair value hedges, net investment hedges, and derivatives not designated as hedging instruments: Three Months Ended 30 June Forward Exchange Contracts Foreign Currency Debt Other (A) Total 2017 2016 2017 2016 2017 2016 2017 2016 Cash Flow Hedges, net of tax: Net gain (loss) recognized in OCI (effective portion) $ 41.2 $ (33.7 ) $ — $ — $ (18.2 ) $ 11.5 $ 23.0 $ (22.2 ) Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion) 4.3 1.0 — — — — 4.3 1.0 Net (gain) loss reclassified from OCI to other income (expense), net (effective portion) (37.9 ) 24.2 — — 10.7 (18.8 ) (27.2 ) 5.4 Net (gain) loss reclassified from OCI to interest expense (effective portion) .4 2.6 — — .7 .9 1.1 3.5 Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion) (1.8 ) .1 — — — — (1.8 ) .1 Fair Value Hedges: Net gain (loss) recognized in interest expense (B) $ — $ — $ — $ — $ (.6 ) $ (.2 ) $ (.6 ) $ (.2 ) Net Investment Hedges, net of tax: Net gain (loss) recognized in OCI $ (23.2 ) $ 28.2 $ (44.4 ) $ 8.4 $ (9.8 ) $ 25.1 $ (77.4 ) $ 61.7 Derivatives Not Designated as Hedging Instruments: Net gain (loss) recognized in other income (expense), net (C) $ 3.7 $ (2.4 ) $ — $ — $ (.7 ) $ (.2 ) $ 3.0 $ (2.6 ) Nine Months Ended 30 June Forward Exchange Contracts Foreign Currency Debt Other (A) Total 2017 2016 2017 2016 2017 2016 2017 2016 Cash Flow Hedges, net of tax: Net gain (loss) recognized in OCI (effective portion) $ (7.1 ) $ (5.9 ) $ — $ — $ 4.9 $ 12.5 $ (2.2 ) $ 6.6 Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion) 10.1 2.4 — — — — 10.1 2.4 Net (gain) loss reclassified from OCI to other income (expense), net (effective portion) .8 (7.8 ) — — (1.7 ) (22.5 ) (.9 ) (30.3 ) Net (gain) loss reclassified from OCI to interest expense (effective portion) (2.0 ) 5.2 — — 2.1 2.5 .1 7.7 Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion) (1.5 ) (.2 ) — — — — (1.5 ) (.2 ) Fair Value Hedges: Net gain (loss) recognized in interest expense (B) $ — $ — $ — $ — $ (12.5 ) $ (2.0 ) $ (12.5 ) $ (2.0 ) Net Investment Hedges, net of tax: Net gain (loss) recognized in OCI $ 3.9 $ 21.8 $ (10.4 ) $ (1.9 ) $ (3.2 ) $ 33.5 $ (9.7 ) $ 53.4 Derivatives Not Designated as Hedging Instruments: Net gain (loss) recognized in other income (expense), net (C) $ 3.3 $ (2.6 ) $ — $ — $ (.5 ) $ (.8 ) $ 2.8 $ (3.4 ) (A) Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate and cross currency interest rate swaps. (B) The impact of fair value hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in related interest rates on outstanding debt. (C) The impact of the non-designated hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in exchange rates on assets and liabilities denominated in non-functional currencies.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	9 Months Ended
	Jun. 30, 2017
Fair Value Disclosures [Abstract]
Schedule of Carrying Value and Fair Value of Financial Instruments	The carrying values and fair values of financial instruments were as follows: 30 June 2017 30 September 2016 Carrying Value Fair Value Carrying Value Fair Value Assets Derivatives Forward exchange contracts $ 143.1 $ 143.1 $ 193.8 $ 193.8 Interest rate management contracts 164.7 164.7 179.9 179.9 Liabilities Derivatives Forward exchange contracts $ 72.1 $ 72.1 $ 82.6 $ 82.6 Interest rate management contracts 23.5 23.5 12.7 12.7 Long-term debt, including current portion 3,782.6 3,884.6 4,275.1 4,474.0
Schedule of Fair Value Assets and Liabilities On Recurring Basis	The following table summarizes assets and liabilities measured at fair value on a recurring basis in the consolidated balance sheets: 30 June 2017 30 September 2016 Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Assets at Fair Value Derivatives Forward exchange contracts $ 143.1 $ — $ 143.1 $ — $ 193.8 $ — $ 193.8 $ — Interest rate management contracts 164.7 — 164.7 — 179.9 — 179.9 — Total Assets at Fair Value $ 307.8 $ — $ 307.8 $ — $ 373.7 $ — $ 373.7 $ — Liabilities at Fair Value Derivatives Forward exchange contracts $ 72.1 $ — $ 72.1 $ — $ 82.6 $ — $ 82.6 $ — Interest rate management contracts 23.5 — 23.5 — 12.7 — 12.7 — Total Liabilities at Fair Value $ 95.6 $ — $ 95.6 $ — $ 95.3 $ — $ 95.3 $ —
Schedule of Nonrecurring Fair Value Measurements	The following is a tabular presentation of nonrecurring fair value measurements along with the level within the fair value hierarchy in which the fair value measurement in its entirety falls: 31 December 2016 2017 Loss Total Level 1 Level 2 Level 3 Plant and Equipment – Continuing operations (A) $ 1.4 $ — $ — $ 1.4 $ 45.7 Plant and Equipment – Discontinued operations (A) $ 11.0 $ — $ — $ 11.0 $ 6.3 (A) We assessed the recoverability of the carrying value of assets associated with the EfW discontinued operation, including the air separation unit within continuing operations of our Industrial Gases – EMEA segment. We based our estimates primarily on an orderly liquidation valuation which resulted in losses for the difference between the orderly liquidation value and net book value of the assets as of 31 December 2016. There have been no significant updates to our estimates as of 30 June 2017 . For additional information, see Note 3 , Discontinued Operations , and Note 5 , Cost Reduction and Asset Actions . 30 June 2017 2017 Loss Total Level 1 Level 2 Level 3 Investment in Equity Affiliate (A) $ 68.5 $ — $ — $ 68.5 $ 79.5 (A) We assessed the recoverability of the carrying value of our equity investment in AHG. We estimated the fair value of our investment using weighting of the results of the income and market approaches. An impairment loss was recognized for the difference between the carrying amount and the fair value of the investment as of 30 June 2017. For additional information, see Note 7 , Equity Affiliates.

Retirement Benefits (Tables)

Retirement Benefits (Tables)	9 Months Ended
	Jun. 30, 2017
Retirement Benefits [Abstract]
Schedule of Net Periodic Benefit Cost	The components of net periodic benefit cost for the defined benefit pension and other postretirement benefit plans for the three and nine months ended 30 June 2017 and 2016 were as follows: Pension Benefits Other Benefits 2017 2016 2017 2016 Three Months Ended 30 June U.S. International U.S. International Service cost $ 7.0 $ 6.5 $ 9.1 $ 6.1 $ .2 $ .5 Interest cost 27.5 8.2 27.7 11.2 .4 .5 Expected return on plan assets (51.6 ) (18.9 ) (50.5 ) (19.8 ) — — Prior service cost amortization .6 — .7 — — — Actuarial loss amortization 20.9 13.5 21.3 8.9 — .2 Settlements 5.5 — 1.0 — — — Special termination benefits .8 — 1.4 — — — Other — .2 — .6 — — Net Periodic Benefit Cost (Total) $ 10.7 $ 9.5 $ 10.7 $ 7.0 $ .6 $ 1.2 Less: Discontinued Operations — — (1.9 ) (.2 ) — (.1 ) Net Periodic Benefit Cost (Continuing Operations) $ 10.7 $ 9.5 $ 8.8 $ 6.8 $ .6 $ 1.1 Pension Benefits Other Benefits 2017 2016 2017 2016 Nine Months Ended 30 June U.S. International U.S. International Service cost $ 22.2 $ 19.5 $ 27.4 $ 18.4 $ .9 $ 1.6 Interest cost 80.0 23.7 83.1 33.9 1.2 1.5 Expected return on plan assets (156.0 ) (55.7 ) (151.5 ) (60.1 ) — — Prior service cost amortization 1.8 (.1 ) 2.2 (.1 ) — — Actuarial loss amortization 67.9 40.6 63.9 27.2 .2 .5 Settlements 9.6 1.7 3.6 — — — Curtailment 4.3 (1.3 ) — — — — Special termination benefits 1.8 .5 2.0 — — — Other — .7 — 1.6 — — Net Periodic Benefit Cost (Total) $ 31.6 $ 29.6 $ 30.7 $ 20.9 $ 2.3 $ 3.6 Less: Discontinued Operations (.7 ) (4.1 ) (5.8 ) (1.8 ) — (.1 ) Net Periodic Benefit Cost (Continuing Operations) $ 30.9 $ 25.5 $ 24.9 $ 19.1 $ 2.3 $ 3.5

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs	Share-based compensation cost recognized in continuing operations on the consolidated income statements is summarized below: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 Before-Tax Share-Based Compensation Cost $ 8.9 $ 7.5 $ 27.4 $ 23.9 Income Tax Benefit (3.2 ) (2.9 ) (9.5 ) (8.4 ) After-Tax Share-Based Compensation Cost $ 5.7 $ 4.6 $ 17.9 $ 15.5
Schedule of Share-based Payment Award, Market-Based Deferred Stock Units, Valuation Assumptions	The calculation of the fair value of market-based deferred stock units used the following assumptions: Expected volatility 20.6 % Risk-free interest rate 1.4 % Expected dividend yield 2.5 %

Equity (Tables)

Equity (Tables)	9 Months Ended
	Jun. 30, 2017
Stockholders' Equity Note [Abstract]
Schedule of Equity	The following is a summary of the changes in total equity: Three Months Ended 30 June 2017 2016 Air Products Non- controlling Interests Total Equity Air Products Non- controlling Interests Total Equity Balance at 31 March $ 9,317.4 $ 102.8 $ 9,420.2 $ 6,916.6 $ 136.5 $ 7,053.1 Net income 101.9 2.2 104.1 346.8 7.3 354.1 Other comprehensive income (loss) 176.6 .2 176.8 (79.0 ) (.7 ) (79.7 ) Dividends on common stock (per share $0.95, $0.86) (207.0 ) — (207.0 ) (186.2 ) — (186.2 ) Dividends to noncontrolling interests — (7.9 ) (7.9 ) — (8.4 ) (8.4 ) Share-based compensation 8.9 — 8.9 7.5 — 7.5 Treasury shares for stock option and award plans 17.8 — 17.8 32.0 — 32.0 Tax benefit of stock option and award plans (A) — — — 6.8 — 6.8 Other equity transactions (3.2 ) .2 (3.0 ) .9 .1 1.0 Balance at 30 June $ 9,412.4 $ 97.5 $ 9,509.9 $ 7,045.4 $ 134.8 $ 7,180.2 Nine Months Ended 30 June 2017 2016 Air Products Non- controlling Interests Total Equity Air Products Non- controlling Interests Total Equity Balance at 30 September $ 7,079.6 $ 133.8 $ 7,213.4 $ 7,249.0 $ 132.1 $ 7,381.1 Net income 2,531.7 14.5 2,546.2 237.1 23.5 260.6 Other comprehensive income 159.7 2.1 161.8 .2 2.1 2.3 Dividends on common stock (per share $2.76, $2.53) (601.0 ) — (601.0 ) (546.7 ) — (546.7 ) Dividends to noncontrolling interests — (19.5 ) (19.5 ) — (23.2 ) (23.2 ) Share-based compensation 27.4 — 27.4 23.9 — 23.9 Treasury shares for stock option and award plans 25.5 — 25.5 62.8 — 62.8 Tax benefit of stock option and award plans (A) — — — 16.5 — 16.5 Spin-off of Versum 186.5 (33.9 ) 152.6 — — — Cumulative change in accounting principle (A) 8.8 — 8.8 — — — Other equity transactions (5.8 ) .5 (5.3 ) 2.6 .3 2.9 Balance at 30 June $ 9,412.4 $ 97.5 $ 9,509.9 $ 7,045.4 $ 134.8 $ 7,180.2 (A) Refer to Note 2, New Accounting Guidance, for information concerning the implementation and impact of new accounting guidance.

Accumulated Other Comprehensi37

Accumulated Other Comprehensive Loss (Tables)	9 Months Ended
	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The tables below summarize changes in accumulated other comprehensive loss (AOCL), net of tax, attributable to Air Products for the three and nine months ended 30 June 2017 : Derivatives qualifying as hedges Foreign currency translation adjustments Pension and postretirement benefits Total Balance at 31 March 2017 $ (58.5 ) $ (1,027.7 ) $ (1,307.5 ) $ (2,393.7 ) Other comprehensive income before reclassifications 23.0 141.4 .1 164.5 Amounts reclassified from AOCL (23.6 ) 8.2 27.7 12.3 Net current period other comprehensive income (loss) (.6 ) 149.6 27.8 176.8 Amount attributable to noncontrolling interests — .2 — .2 Balance at 30 June 2017 $ (59.1 ) $ (878.3 ) $ (1,279.7 ) $ (2,217.1 ) Derivatives qualifying as hedges Foreign currency translation adjustments Pension and postretirement benefits Total Balance at 30 September 2016 $ (65.0 ) $ (949.3 ) $ (1,374.0 ) $ (2,388.3 ) Other comprehensive income (loss) before reclassifications (2.2 ) 9.8 3.9 11.5 Amounts reclassified from AOCL 7.8 57.3 85.2 150.3 Net current period other comprehensive income 5.6 67.1 89.1 161.8 Spin-off of Versum .2 6.0 5.3 11.5 Amount attributable to noncontrolling interests (.1 ) 2.1 .1 2.1 Balance at 30 June 2017 $ (59.1 ) $ (878.3 ) $ (1,279.7 ) $ (2,217.1 )
Schedule of Reclassification out of Accumulated Other Comprehensive Income (Loss)	The table below summarizes the reclassifications out of accumulated other comprehensive loss and the affected line item on the consolidated income statements: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 (Gain) Loss on Cash Flow Hedges, net of tax Sales/Cost of sales $ 4.3 $ 1.0 $ 10.1 $ 2.4 Other income (expense), net (29.0 ) 5.5 (2.4 ) (30.5 ) Interest expense 1.1 3.5 .1 7.7 Total (Gain) Loss on Cash Flow Hedges, net of tax $ (23.6 ) $ 10.0 $ 7.8 $ (20.4 ) Currency Translation Adjustment Cost reduction and asset actions (A) $ 8.2 $ — $ 8.2 $ — Income (loss) from discontinued operations, net of tax (B) — (.1 ) 49.1 2.7 Total Currency Translation Adjustment $ 8.2 $ (.1 ) $ 57.3 $ 2.7 Pension and Postretirement Benefits, net of tax (C) $ 27.7 $ 21.6 $ 85.2 $ 65.4 (A) Impact relates to the planned sale of a non-industrial gas hardgoods business in the Industrial Gases – Americas segment. (B) The fiscal year 2017 impact relates to the sale of PMD during the second quarter. The fiscal year 2016 impact primarily relates to the sale of an equity affiliate in the first quarter. (C) The components include items such as prior service cost amortization, actuarial loss amortization, and settlements and are reflected in net periodic benefit cost. Refer to Note 12 , Retirement Benefits .

Earnings per Share (Tables)

Earnings per Share (Tables)	9 Months Ended
	Jun. 30, 2017
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following table sets forth the computation of basic and diluted earnings per share: Three Months Ended Nine Months Ended 30 June 30 June 2017 2016 2017 2016 Numerator Income from continuing operations $ 104.2 $ 250.3 $ 660.2 $ 810.1 Income (Loss) from discontinued operations (2.3 ) 96.5 1,871.5 (573.0 ) Net Income Attributable to Air Products $ 101.9 $ 346.8 $ 2,531.7 $ 237.1 Denominator (in millions) Weighted average common shares — Basic 218.1 216.6 217.9 216.1 Effect of dilutive securities Employee stock option and other award plans 1.7 1.9 1.9 1.9 Weighted average common shares — Diluted 219.8 218.5 219.8 218.0 Basic Earnings Per Common Share Attributable to Air Products Income from continuing operations $ .48 $ 1.16 $ 3.03 $ 3.75 Income (Loss) from discontinued operations (.01 ) .44 8.59 (2.65 ) Net Income Attributable to Air Products $ .47 $ 1.60 $ 11.62 $ 1.10 Diluted Earnings Per Common Share Attributable to Air Products Income from continuing operations $ .47 $ 1.15 $ 3.00 $ 3.72 Income (Loss) from discontinued operations (.01 ) .44 8.52 (2.63 ) Net Income Attributable to Air Products $ .46 $ 1.59 $ 11.52 $ 1.09

Business Segment Information (T

Business Segment Information (Tables)	9 Months Ended
	Jun. 30, 2017
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment	Industrial Gases– Americas Industrial Gases– EMEA Industrial Gases– Asia Industrial Gases– Global Corporate and other Segment Total Three Months Ended 30 June 2017 Sales $ 930.1 $ 451.7 $ 538.3 $ 187.4 $ 14.4 $ 2,121.9 Operating income (loss) 236.2 94.1 149.1 27.9 (44.4 ) 462.9 Depreciation and amortization 117.0 45.1 49.6 2.3 2.9 216.9 Equity affiliates' income 14.1 15.7 12.5 .3 — 42.6 Three Months Ended 30 June 2016 Sales $ 832.3 $ 428.7 $ 449.0 $ 150.8 $ 53.7 $ 1,914.5 Operating income (loss) 234.0 104.0 118.7 (13.9 ) (24.5 ) 418.3 Depreciation and amortization 112.1 45.1 49.5 2.0 4.8 213.5 Equity affiliates' income 16.0 11.3 14.8 — — 42.1 Nine Months Ended 30 June 2017 Sales $ 2,684.1 $ 1,265.6 $ 1,412.5 $ 551.8 $ 70.5 $ 5,984.5 Operating income (loss) 684.5 268.6 379.2 58.9 (114.4 ) 1,276.8 Depreciation and amortization 344.8 128.9 145.6 6.0 9.5 634.8 Equity affiliates' income 41.8 33.5 38.9 .6 — 114.8 Nine Months Ended 30 June 2016 Sales $ 2,466.7 $ 1,290.1 $ 1,271.5 $ 341.7 $ 188.2 $ 5,558.2 Operating income (loss) 669.1 286.3 341.0 (44.0 ) (57.9 ) 1,194.5 Depreciation and amortization 330.9 140.1 150.2 5.9 15.0 642.1 Equity affiliates' income (loss) 38.2 26.1 43.9 (.5 ) — 107.7 Total Assets 30 June 2017 $ 5,765.6 $ 3,205.4 $ 4,262.6 $ 283.6 $ 4,326.8 $ 17,844.0 30 September 2016 5,896.7 3,178.6 4,232.7 367.6 2,384.5 16,060.1
Reconciliation of Segments to Consolidated Operating Income	Below is a reconciliation of segment total operating income to consolidated operating income: Three Months Ended Nine Months Ended 30 June 30 June Operating Income 2017 2016 2017 2016 Segment total $ 462.9 $ 418.3 $ 1,276.8 $ 1,194.5 Business separation costs — (9.5 ) (30.2 ) (28.9 ) Cost reduction and asset actions (42.7 ) (13.2 ) (103.0 ) (23.9 ) Pension settlement loss (5.5 ) (1.0 ) (9.6 ) (3.0 ) Goodwill and intangible asset impairment charge (162.1 ) — (162.1 ) — Consolidated Total $ 252.6 $ 394.6 $ 971.9 $ 1,138.7
Reconciliation of Segments to Consolidated Equity Affiliates Income (Loss)	Below is a reconciliation of segment total equity affiliates' income to consolidated equity affiliates' income (loss) : Three Months Ended Nine Months Ended 30 June 30 June Equity Affiliates' Income (Loss) 2017 2016 2017 2016 Segment total $ 42.6 $ 42.1 $ 114.8 $ 107.7 Equity method investment impairment charge (79.5 ) — (79.5 ) — Consolidated Total $ (36.9 ) $ 42.1 $ 35.3 $ 107.7
Reconciliation of Assets from Segment to Consolidated	Below is a reconciliation of segment total assets to consolidated total assets: 30 June 30 September Total Assets 2017 2016 Segment total $ 17,844.0 $ 16,060.1 Discontinued operations 9.8 1,968.5 Consolidated Total $ 17,853.8 $ 18,028.6

New Accounting Guidance (Narrat

New Accounting Guidance (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Oct. 01, 2016	Sep. 30, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefits recognized under new accounting standard	$ 3.5	$ 13.2
Accounting Standards Update 2015-03 [Member] | Other Noncurrent Assets [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of debt issuance cost with (decrease) to assets and decrease to liabilities				$ (17)
Accounting Standards Update 2015-03 [Member] | Other Noncurrent Assets [Member] | Discontinued Operations [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of debt issuance cost with (decrease) to assets and decrease to liabilities				(9.6)
Accounting Standards Update 2015-03 [Member] | Long-term Debt [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of debt issuance cost with (decrease) to assets and decrease to liabilities				17
Accounting Standards Update 2015-03 [Member] | Noncurrent Liabilities [Member] | Discontinued Operations [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Reclassification of debt issuance cost with (decrease) to assets and decrease to liabilities				$ 9.6
Accounting Standards Update 2016-09 [Member] | New Accounting Pronouncement, Early Adoption, Effect [Member] | Retained Earnings [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative-effect adjustment related to adoption of new accounting standard			$ 8.8

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details)	Jan. 03, 2017USD ($)	Oct. 01, 2016	Jun. 30, 2017USD ($)	Mar. 31, 2017USD ($)$ / shares	Dec. 31, 2016USD ($)	Mar. 31, 2016USD ($)	Jun. 30, 2017USD ($)	Sep. 30, 2016USD ($)
Electronic Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Distribution ratio of common stock in spin-off		0.5
Electronic Materials Division [Member] | Minimum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement months from divestiture not to exceed		12 months
Electronic Materials Division [Member] | Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement months from divestiture not to exceed		24 months
Performance Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 3,800,000,000
Gain on sale, before-tax				$ 2,870,000,000
Gain on sale, after-tax				$ 1,833,000,000
Gain on sale, after-tax, per share | $ / shares				$ 8.34
Performance Materials Division [Member] | Maximum [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition services agreement months from divestiture not to exceed	12 months
Energy-from-Waste [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal, before-tax					$ 59,300,000	$ 945,700,000	$ 59,300,000	$ 945,700,000
Loss on disposal, net of tax					47,100,000	$ 846,600,000
Change to estimates of loss on disposal			$ 0
Energy-from-Waste [Member] | Asset Actions [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal, before-tax					6,300,000		6,300,000	913,500,000
Energy-from-Waste [Member] | Contract Actions/other [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal, before-tax					$ 53,000,000		$ 53,000,000	$ 32,200,000

Discontinued Operations (Carryi

Discontinued Operations (Carrying Amount of Accrual) (Details) - Energy-from-Waste [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2016	Mar. 31, 2016	Jun. 30, 2017	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of business	$ 59.3	$ 945.7	$ 59.3	$ 945.7
Noncash expenses			(6.3)	(913.5)
Amount reflected in other noncurrent liabilities			(61.5)
Cash expenditures			(1.4)	(18.6)
Currency translation adjustment			3.4	(1.4)
Accrual for actions to dispose of business			5.7	12.2
Asset Actions [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of business	6.3		6.3	913.5
Noncash expenses			(6.3)	(913.5)
Amount reflected in other noncurrent liabilities			0
Cash expenditures			0	0
Currency translation adjustment			0	0
Accrual for actions to dispose of business			0	0
Contract Actions/other [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal of business	$ 53		53	32.2
Noncash expenses			0	0
Amount reflected in other noncurrent liabilities			(61.5)
Cash expenditures			(1.4)	(18.6)
Currency translation adjustment			3.4	(1.4)
Accrual for actions to dispose of business			$ 5.7	$ 12.2

Discontinued Operations (Schedu

Discontinued Operations (Schedule of Operating Results) (Details) - USD ($) $ in Millions		3 Months Ended							9 Months Ended
		Jun. 30, 2017		Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016		Mar. 31, 2016	Jun. 30, 2017		Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of tax		$ (2.3)				$ 98.4			$ 1,871.5		$ (567)
Net Income Attributable to Noncontrolling Interests of Discontinued Operations		0				1.9			0		6
Net Income (Loss) From Discontinued Operations, net of tax		(2.3)				96.5			1,871.5		(573)
Performance Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on disposal, net of tax				$ 1,833
Energy-from-Waste [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on disposal, net of tax					$ (47.1)			$ (846.6)
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales						519.9			254.8		1,503.2
Cost of sales		2.3	[1]			336.7			194.2		947.8
Selling and administrative		0.3	[1]			44.2			23		122.7
Research and development						15.6			5.1		45.8
Other income (expense), net		(0.8)	[1]			6.8			(0.6)		1.8
Operating Income (Loss)						130.2			31.9		388.7
Equity affiliates’ income						0.5			0.3		1.1
Income (Loss) Before Taxes		(3.4)	[1]			130.7	[2]		32.2		389.8	[2]
Income tax provision		(1.1)	[1]			32.3			(53.9)	[3]	110.2
Income (Loss) From Operations of Discontinued Operations, net of tax									86.1		279.6
Gain (loss) on disposal, net of tax									1,785.4
Loss on disposal, net of tax											(846.6)
Income (loss) from discontinued operations, net of tax		$ (2.3)	[1]			98.4			1,871.5		(567)
Net Income Attributable to Noncontrolling Interests of Discontinued Operations						1.9					6
Net Income (Loss) From Discontinued Operations, net of tax						96.5					(573)
Income before taxes from operations of discontinued operations						128.3					382.4
Discontinued Operations [Member] | Electronic Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales						240					713.3
Cost of sales						130.9					385.8
Selling and administrative						22.8					61.2
Research and development						10.6					30.2
Other income (expense), net						(0.8)					4.2
Operating Income (Loss)						74.9					240.3
Equity affiliates’ income						0					0.2
Income (Loss) Before Taxes						74.9					240.5
Income tax provision						16.8					58.4
Income (Loss) From Operations of Discontinued Operations, net of tax											182.1
Loss on disposal, net of tax											0
Income (loss) from discontinued operations, net of tax						58.1					182.1
Net Income Attributable to Noncontrolling Interests of Discontinued Operations						1.9					6
Net Income (Loss) From Discontinued Operations, net of tax						56.2					176.1
Discontinued Operations [Member] | Performance Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales						279.9			254.8		789.9
Cost of sales						188.2			182.3		539.1
Selling and administrative						20.7			22.5		59.2
Research and development						4.9			5.1		14.8
Other income (expense), net						(0.6)			0.3		3.1
Operating Income (Loss)						65.5			45.2		179.9
Equity affiliates’ income						0.5			0.3		0.9
Income (Loss) Before Taxes						66			45.5		180.8
Income tax provision						16.8			(50.8)	[3]	53.7
Income (Loss) From Operations of Discontinued Operations, net of tax									96.3		127.1
Gain (loss) on disposal, net of tax	[4]								1,832.5
Loss on disposal, net of tax											0
Income (loss) from discontinued operations, net of tax						49.2			1,928.8		127.1
Net Income Attributable to Noncontrolling Interests of Discontinued Operations						0					0
Net Income (Loss) From Discontinued Operations, net of tax						49.2					127.1
Discontinued operations, allowance adjustment effect on income tax provision					$ 66
Gross expense related to income tax reserves for uncertain tax positions included in gain									26.1
Net expense related to income tax reserves for uncertain tax positions included in gain									19.1
Discontinued Operations [Member] | Energy-from-Waste [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales						0			0		0
Cost of sales						17.6			11.9		22.9
Selling and administrative						0.7			0.5		2.3
Research and development						0.1			0		0.8
Other income (expense), net						8.2			(0.9)		(5.5)
Operating Income (Loss)						(10.2)	[5]		(13.3)	[6]	(31.5)	[5]
Equity affiliates’ income						0			0		0
Income (Loss) Before Taxes						(10.2)	[5]		(13.3)	[6]	(31.5)	[5]
Income tax provision						(1.3)			(3.1)		(1.9)
Income (Loss) From Operations of Discontinued Operations, net of tax									(10.2)	[6]	(29.6)	[5]
Gain (loss) on disposal, net of tax									(47.1)
Loss on disposal, net of tax											(846.6)
Income (loss) from discontinued operations, net of tax						(8.9)	[5]		$ (57.3)		(876.2)	[5]
Net Income Attributable to Noncontrolling Interests of Discontinued Operations						0					0
Net Income (Loss) From Discontinued Operations, net of tax	[5]					$ (8.9)					$ (876.2)
[1]	Activity primarily relates to EfW.
[2]	For the three and nine months ended 30 June 2016, income before taxes from operations of discontinued operations attributable to Air Products was $128.3 and $382.4, respectively.
[3]	As a result of the expected gain on sale of PMD, we released valuation allowances related to capital loss and net operating loss carryforwards during the first quarter of 2017 that favorably impacted our income tax provision within discontinued operations by approximately $66.
[4]	After-tax gain on sale of $1,832.5 includes expense for income tax reserves for uncertain tax positions of $26.1 gross ($19.1 net) in various jurisdictions.
[5]	The loss from operations of discontinued operations for EfW primarily relates to project suspension costs, land lease obligations, and administrative costs.
[6]	The loss from operations of discontinued operations for EfW primarily relates to land lease obligations, administrative costs, and costs incurred for ongoing project exit activities.

Discontinued Operations (Sche44

Discontinued Operations (Schedule of Assets and Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2017		Sep. 30, 2016	Jun. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash items	$ 0			$ 76.3
Total Current Assets	9.8		$ 926.2
Total Noncurrent Assets	0		1,042.3
Total Current Liabilities	16.5		211.8
Total Noncurrent Liabilities	0		1,095.5
Discontinued Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash items			208.1
Trade receivables, net			293.7
Inventories			364.9
Plant and equipment, net	9.8		18.2
Other receivables and current assets			41.3
Total Current Assets	9.8		926.2
Plant and equipment, net			593
Goodwill, net			305
Intangible assets, net			100.1
Other noncurrent assets			44.2
Total Noncurrent Assets			1,042.3
Total Assets	9.8		1,968.5
Payables and accrued liabilities	16.5	[1]	177.3
Accrued income taxes			28.7
Current portion of long-term debt			5.8
Total Current Liabilities	16.5		211.8
Long-term debt			981.8
Deferred income taxes			56.7
Other noncurrent liabilities			57
Total Noncurrent Liabilities			1,095.5
Total Liabilities	16.5		1,307.3
Discontinued Operations [Member] | Electronic Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash items			170.6
Trade receivables, net			134.7
Inventories			138.1
Plant and equipment, net			0
Other receivables and current assets			34.5
Total Current Assets			477.9
Plant and equipment, net			296.5
Goodwill, net			180
Intangible assets, net			75.1
Other noncurrent assets			37.5
Total Noncurrent Assets			589.1
Total Assets			1,067
Payables and accrued liabilities			85.8
Accrued income taxes			22.7
Current portion of long-term debt			5.8
Total Current Liabilities			114.3
Long-term debt			981.8
Deferred income taxes			50.3
Other noncurrent liabilities			47.4
Total Noncurrent Liabilities			1,079.5
Total Liabilities			1,193.8
Discontinued Operations [Member] | Performance Materials Division [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash items			37.5
Trade receivables, net			159
Inventories			226.8
Plant and equipment, net	0		0
Other receivables and current assets			5.6
Total Current Assets	0		428.9
Plant and equipment, net			296.5
Goodwill, net			125
Intangible assets, net			25
Other noncurrent assets			6.7
Total Noncurrent Assets			453.2
Total Assets	0		882.1
Payables and accrued liabilities	10.4	[1]	72.5
Accrued income taxes			6
Current portion of long-term debt			0
Total Current Liabilities	10.4		78.5
Long-term debt			0
Deferred income taxes			6.4
Other noncurrent liabilities			9.6
Total Noncurrent Liabilities			16
Total Liabilities	10.4		94.5
Discontinued Operations [Member] | Energy-from-Waste [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash items			0
Trade receivables, net			0
Inventories			0
Plant and equipment, net	9.8		18.2
Other receivables and current assets			1.2
Total Current Assets	9.8		19.4
Plant and equipment, net			0
Goodwill, net			0
Intangible assets, net			0
Other noncurrent assets			0
Total Noncurrent Assets			0
Total Assets	9.8		19.4
Payables and accrued liabilities	6.1	[1]	19
Accrued income taxes			0
Current portion of long-term debt			0
Total Current Liabilities	6.1		19
Long-term debt			0
Deferred income taxes			0
Other noncurrent liabilities			0
Total Noncurrent Liabilities			0
Total Liabilities	$ 6.1		$ 19
[1]	Includes reserves associated with disposition of businesses.

Business Separation Costs (Narr

Business Separation Costs (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Business separation costs	$ 0	$ 9.5	$ 30.2	$ 28.9
Materials Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Business separation costs	0	9.5	30.2	28.9
Tax benefit related to changes in tax positions on business separation activities	$ 8.2		$ 8.2
Electronic Materials Division [Member]
Restructuring Cost and Reserve [Line Items]
Tax expense related to repatriation of foreign earnings		$ 45.7		$ 45.7
Foreign earnings repatriated					$ 443.8

Cost Reduction and Asset Acti46

Cost Reduction and Asset Actions (Narrative) (Details) $ in Millions	3 Months Ended			9 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)	Dec. 31, 2016USD ($)	Jun. 30, 2016USD ($)	Jun. 30, 2017USD ($)position	Jun. 30, 2016USD ($)	Sep. 30, 2016USD ($)position
Restructuring and Related Cost [Abstract]
Cost reduction and asset actions	$ 42.7		$ 13.2	$ 103	$ 23.9
Cost Reduction Actions [Member]
Restructuring and Related Cost [Abstract]
Cost reduction and asset actions	42.7			106.4		$ 34.5
Net expense cost reduction and asset actions				103
Favorable restructuring reserve settlement				3.4
Cost Reduction Actions [Member] | Severance And Other Benefits [Member]
Restructuring and Related Cost [Abstract]
Cost reduction and asset actions	9.5		$ 13.2	$ 27.5	$ 23.9	$ 34.5
Number of positions eliminated | position				270		610
Cost Reduction Actions [Member] | Asset Actions [Member]
Restructuring and Related Cost [Abstract]
Cost reduction and asset actions	$ 33.2			$ 78.9		$ 0
Cost Reduction Actions [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Restructuring and Related Cost [Abstract]
Cost reduction and asset actions		$ 45.7

Cost Reduction and Asset Acti47

Cost Reduction and Asset Actions (Carrying Amount of Accrual) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Cost reduction and asset actions	$ 42.7	$ 13.2	$ 103	$ 23.9
Cost Reduction Actions [Member]
Restructuring Cost and Reserve [Line Items]
Cost reduction and asset actions	42.7		106.4		$ 34.5
Noncash expenses			(74.6)
Amount reflected in pension liability			(1)		(0.9)
Amount reflected in other noncurrent liabilities			(2.2)
Cash expenditures			(27.9)		(21.6)
Currency translation adjustment			(0.4)		0.3
Accrued balance	12.6		12.6		12.3
Cost Reduction Actions [Member] | Severance And Other Benefits [Member]
Restructuring Cost and Reserve [Line Items]
Cost reduction and asset actions	9.5	$ 13.2	27.5	$ 23.9	34.5
Noncash expenses			0
Amount reflected in pension liability			(1)		(0.9)
Amount reflected in other noncurrent liabilities			0
Cash expenditures			(27)		(21.6)
Currency translation adjustment			(0.4)		0.3
Accrued balance	11.4		11.4		12.3
Cost Reduction Actions [Member] | Asset Actions [Member]
Restructuring Cost and Reserve [Line Items]
Cost reduction and asset actions	33.2		78.9		0
Noncash expenses			(74.6)
Amount reflected in pension liability			0		0
Amount reflected in other noncurrent liabilities			(2.2)
Cash expenditures			(0.9)		0
Currency translation adjustment			0		0
Accrued balance	$ 1.2		$ 1.2		$ 0

Inventories (Schedule of Invent

Inventories (Schedule of Inventory) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Inventory Disclosure [Abstract]
Finished goods	$ 113.2	$ 131.3
Work in process	15	18.3
Raw materials, supplies and other	180.2	117.1
Total FIFO cost	308.4	266.7
Less: Excess of FIFO cost over LIFO cost	(15.1)	(11.7)
Inventories	$ 293.3	$ 255

Equity Affiliates (Narrative) (

Equity Affiliates (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017		Jun. 30, 2016
Schedule of Equity Method Investments [Line Items]
Equity method investment impairment charge		$ 79.5		$ 0
Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage of equity affiliate	25.00%	25.00%
Equity method investment impairment charge	$ 79.5	$ 79.5	[1]
Equity method investments	$ 68.5	$ 68.5
[1]	We assessed the recoverability of the carrying value of our equity investment in AHG. We estimated the fair value of our investment using weighting of the results of the income and market approaches. An impairment loss was recognized for the difference between the carrying amount and the fair value of the investment as of 30 June 2017. For additional information, see Note 7, Equity Affiliates.

Goodwill (Schedule of Goodwill

Goodwill (Schedule of Goodwill by Segment) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Goodwill [Roll Forward]
Goodwill, net, beginning balance		$ 845.1
Impairment loss	$ (145.3)	(145.3)
Currency translation		5.3
Goodwill, net, ending balance	705.1	705.1
Industrial Gases - Americas [Member]
Goodwill [Roll Forward]
Goodwill, net, beginning balance		309.1
Impairment loss		(145.3)
Currency translation		(2.3)
Goodwill, net, ending balance	161.5	161.5
Industrial Gases - EMEA [Member]
Goodwill [Roll Forward]
Goodwill, net, beginning balance		380.6
Impairment loss		0
Currency translation		8.1
Goodwill, net, ending balance	388.7	388.7
Industrial Gases - Asia [Member]
Goodwill [Roll Forward]
Goodwill, net, beginning balance		135.2
Impairment loss		0
Currency translation		(0.3)
Goodwill, net, ending balance	134.9	134.9
Industrial Gases - Global [Member]
Goodwill [Roll Forward]
Goodwill, net, beginning balance		20.2
Impairment loss		0
Currency translation		(0.2)
Goodwill, net, ending balance	$ 20	$ 20

Goodwill (Schedule of Accumulat

Goodwill (Schedule of Accumulated Impairment Losses) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, gross	$ 1,106.5	$ 1,103.7
Goodwill, accumulated impairment losses	(401.4)	(258.6)
Goodwill, net	$ 705.1	$ 845.1

Goodwill (Narrative) (Details)

Goodwill (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill, impairment charge	$ 145.3	$ 145.3
Goodwill, accumulated impairment losses	$ 401.4	$ 401.4	$ 258.6

Intangible Assets (Acquired Int

Intangible Assets (Acquired Intangible Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Intangible assets, gross	$ 564.5	$ 553.4
Intangible assets, accumulated amortization and impairment	(200.7)	(165.5)
Intangible assets, net	363.8	387.9
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	498.9	487.2
Accumulated amortization	(180.4)	(162)
Finite-lived intangible assets, net	318.5	325.2
Trade Names and Trademarks [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets, gross	65.6	66.2
Accumulated impairment	(20.3)	(3.5)
Indefinite-lived intangible assets, net	45.3	62.7
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	412.8	400.6
Accumulated amortization	(134.3)	(118.2)
Finite-lived intangible assets, net	278.5	282.4
Patents and Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	13.6	13.6
Accumulated amortization	(10.5)	(10.1)
Finite-lived intangible assets, net	3.1	3.5
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	72.5	73
Accumulated amortization	(35.6)	(33.7)
Finite-lived intangible assets, net	$ 36.9	$ 39.3

Intangible Assets (Narrative) (

Intangible Assets (Narrative) (Details) $ in Millions	3 Months Ended
	Jun. 30, 2017USD ($)
Level 3 [Member] | Fair Value [Member]
Indefinite-lived Intangible Assets [Line Items]
Impairment charge	$ 16.8

Financial Instruments (Narrativ

Financial Instruments (Narrative) (Details) € in Millions	3 Months Ended	9 Months Ended		12 Months Ended
	Jun. 30, 2017USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2017EUR (€)	Sep. 30, 2016USD ($)	Sep. 30, 2016EUR (€)
Derivative [Line Items]
Cash flow hedges net losses expected to be reclassified in next twelve months		$ 15,000,000
Net liability position of derivatives with credit risk-related contingent features	$ 22,900,000	22,900,000		$ 11,200,000
Collateral posted on liability positions with credit risk-related contingent features	0	0
Collateral amount that counterparties would be required to post	$ 195,400,000	195,400,000		267,600,000
Forward Exchange Contracts [Member]
Derivative [Line Items]
Maximum remaining maturity of foreign currency derivatives	2 years
Foreign Currency Debt [Member] | Euro Denominated [Member]
Derivative [Line Items]
Notional amount included in designated foreign currency denominated debt		$ 1,038,800,000	€ 909.1	$ 1,034,400,000	€ 920.7

Financial Instruments (Schedule

Financial Instruments (Schedule of Outstanding Currency Price Risk Management Instruments) (Details) - Forward Exchange Contracts [Member] - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2016
Derivative [Line Items]
US$ Notional	$ 5,137.3	$ 7,746.8
Years Average Maturity	8 months	8 months
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 1,220.4	$ 2,648.3
Years Average Maturity	1 month	5 months
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 3,209.4	$ 4,130.3
Years Average Maturity	5 months	6 months
Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 707.5	$ 968.2
Years Average Maturity	3 years	2 years 8 months

Financial Instruments (Schedu57

Financial Instruments (Schedule of Interest Rate Swaps and Cross Currency Interest Rate Swaps) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2016
Interest Rate Swaps Contracts [Member] | Fair Value Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 600	$ 600
Average Pay %	LIBOR	LIBOR
Average Receive %	2.28%	2.28%
Years Average Maturity	1 year 6 months	2 years 4 months
Cross Currency Interest Rate Swaps [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 51.2	$ 27.4
Average Pay %	3.38%	3.62%
Average Receive %	1.91%	0.81%
Years Average Maturity	1 year 8 months	1 year 10 months
Cross Currency Interest Rate Swaps [Member] | Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 493.9	$ 517.7
Average Pay %	3.24%	3.24%
Average Receive %	2.39%	2.43%
Years Average Maturity	1 year 10 months	2 years 7 months
Cross Currency Interest Rate Swaps [Member] | Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
US$ Notional	$ 1,095.7	$ 1,088.9
Average Pay %	4.96%	4.77%
Average Receive %	2.78%	2.72%
Years Average Maturity	2 years 8 months	3 years 4 months

Financial Instruments (Fair Val

Financial Instruments (Fair Value of Derivative Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Derivative [Line Items]
Total derivatives, asset	$ 307.8	$ 373.7
Total derivatives, liabilities	95.6	95.3
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Total derivatives, asset	285.5	296.6
Total derivatives, liabilities	87.3	65.1
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Total derivatives, asset	22.3	77.1
Total derivatives, liabilities	8.3	30.2
Forward Exchange Contracts [Member] | Designated as Hedging Instrument [Member] | Other Receivables [Member]
Derivative [Line Items]
Total derivatives, asset	86.1	72.3
Forward Exchange Contracts [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative [Line Items]
Total derivatives, asset	39.1	44.4
Forward Exchange Contracts [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	60.8	44
Forward Exchange Contracts [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	3.9	9.1
Forward Exchange Contracts [Member] | Not Designated as Hedging Instrument [Member] | Other Receivables [Member]
Derivative [Line Items]
Total derivatives, asset	17.9	77.1
Forward Exchange Contracts [Member] | Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	7.4	29.5
Interest Rate Management Contract [Member] | Designated as Hedging Instrument [Member] | Other Receivables [Member]
Derivative [Line Items]
Total derivatives, asset	32.3	19.9
Interest Rate Management Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative [Line Items]
Total derivatives, asset	128	160
Interest Rate Management Contract [Member] | Designated as Hedging Instrument [Member] | Accrued Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	0.1	0
Interest Rate Management Contract [Member] | Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	22.5	12
Interest Rate Management Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Noncurrent Assets [Member]
Derivative [Line Items]
Total derivatives, asset	4.4	0
Interest Rate Management Contract [Member] | Not Designated as Hedging Instrument [Member] | Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Total derivatives, liabilities	$ 0.9	$ 0.7

Financial Instruments (Schedu59

Financial Instruments (Schedule of Gain/Loss Related to Derivative Instruments) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in other income (expense), net	[1]	$ 3	$ (2.6)	$ 2.8	$ (3.4)
Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)		23	(22.2)	(2.2)	6.6
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)		4.3	1	10.1	2.4
Net (gain) loss reclassified from OCI to other income (expense), net (effective portion)		(27.2)	5.4	(0.9)	(30.3)
Net (gain) loss reclassified from OCI to interest expense (effective portion)		1.1	3.5	0.1	7.7
Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion)		(1.8)	0.1	(1.5)	(0.2)
Fair Value Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in interest expense	[2]	(0.6)	(0.2)	(12.5)	(2)
Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI		(77.4)	61.7	(9.7)	53.4
Forward Exchange Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in other income (expense), net	[1]	3.7	(2.4)	3.3	(2.6)
Forward Exchange Contracts [Member] | Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)		41.2	(33.7)	(7.1)	(5.9)
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)		4.3	1	10.1	2.4
Net (gain) loss reclassified from OCI to other income (expense), net (effective portion)		(37.9)	24.2	0.8	(7.8)
Net (gain) loss reclassified from OCI to interest expense (effective portion)		0.4	2.6	(2)	5.2
Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion)		(1.8)	0.1	(1.5)	(0.2)
Forward Exchange Contracts [Member] | Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI		(23.2)	28.2	3.9	21.8
Foreign Currency Debt [Member] | Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI		(44.4)	8.4	(10.4)	(1.9)
Other Contracts [Member] | Not Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in other income (expense), net	[1],[3]	(0.7)	(0.2)	(0.5)	(0.8)
Other Contracts [Member] | Cash Flow Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI (effective portion)	[3]	(18.2)	11.5	4.9	12.5
Net (gain) loss reclassified from OCI to sales/cost of sales (effective portion)	[3]	0	0	0	0
Net (gain) loss reclassified from OCI to other income (expense), net (effective portion)	[3]	10.7	(18.8)	(1.7)	(22.5)
Net (gain) loss reclassified from OCI to interest expense (effective portion)	[3]	0.7	0.9	2.1	2.5
Net (gain) loss reclassified from OCI to other income (expense), net (ineffective portion)	[3]	0	0	0	0
Other Contracts [Member] | Fair Value Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in interest expense	[2],[3]	(0.6)	(0.2)	(12.5)	(2)
Other Contracts [Member] | Net Investment Hedges [Member] | Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net gain (loss) recognized in OCI	[3]	$ (9.8)	$ 25.1	$ (3.2)	$ 33.5
[1]	The impact of the non-designated hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in exchange rates on assets and liabilities denominated in non-functional currencies.
[2]	The impact of fair value hedges noted above was largely offset by recognized gains and losses resulting from the impact of changes in related interest rates on outstanding debt.
[3]	Other includes the impact on other comprehensive income (OCI) and earnings primarily related to interest rate and cross currency interest rate swaps.

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule of the Carrying Values and Fair Values of Financial Instruments) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, carrying value	$ 3,782.6	$ 4,275.1
Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, fair value	3,884.6	4,474
Forward Exchange Contracts [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	143.1	193.8
Derivative liabilities	72.1	82.6
Forward Exchange Contracts [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	143.1	193.8
Derivative liabilities	72.1	82.6
Interest Rate Management Contract [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	164.7	179.9
Derivative liabilities	23.5	12.7
Interest Rate Management Contract [Member] | Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	164.7	179.9
Derivative liabilities	$ 23.5	$ 12.7

Fair Value Measurements (Sche61

Fair Value Measurements (Schedule of Recurring Fair Value Measurements) (Details) - Fair Value [Member] - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Forward Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	$ 143.1	$ 193.8
Derivative liabilities	72.1	82.6
Interest Rate Management Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	164.7	179.9
Derivative liabilities	23.5	12.7
Recurring Basis [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	307.8	373.7
Total Liabilities at Fair Value	95.6	95.3
Recurring Basis [Member] | Forward Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	143.1	193.8
Derivative liabilities	72.1	82.6
Recurring Basis [Member] | Interest Rate Management Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	164.7	179.9
Derivative liabilities	23.5	12.7
Recurring Basis [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	0	0
Total Liabilities at Fair Value	0	0
Recurring Basis [Member] | Level 1 [Member] | Forward Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring Basis [Member] | Level 1 [Member] | Interest Rate Management Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring Basis [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	307.8	373.7
Total Liabilities at Fair Value	95.6	95.3
Recurring Basis [Member] | Level 2 [Member] | Forward Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	143.1	193.8
Derivative liabilities	72.1	82.6
Recurring Basis [Member] | Level 2 [Member] | Interest Rate Management Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	164.7	179.9
Derivative liabilities	23.5	12.7
Recurring Basis [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets at Fair Value	0	0
Total Liabilities at Fair Value	0	0
Recurring Basis [Member] | Level 3 [Member] | Forward Exchange Contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0	0
Derivative liabilities	0	0
Recurring Basis [Member] | Level 3 [Member] | Interest Rate Management Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	0	0
Derivative liabilities	$ 0	$ 0

Fair Value Measurements (Sche62

Fair Value Measurements (Schedule of Nonrecurring Fair Value Measurements) (Details) - USD ($) $ in Millions		3 Months Ended	9 Months Ended
		Jun. 30, 2017	Jun. 30, 2017		Jun. 30, 2016	Dec. 31, 2016
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, loss			$ 59.1		$ 0
Equity method investment impairment charge			79.5		$ 0
Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Long Lived Assets Held-for-sale [Line Items]
Equity method investment impairment charge		$ 79.5	79.5	[1]
Continuing Operations [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, loss	[2]		45.7
Discontinued Operations [Member] | Asset Actions [Member] | Energy From Waste [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, held for sale, loss	[2]		6.3
Nonrecurring Basis [Member] | Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Long Lived Assets Held-for-sale [Line Items]
Investment in Equity Affiliate	[1]	68.5	68.5
Nonrecurring Basis [Member] | Continuing Operations [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, fair value	[2]					$ 1.4
Nonrecurring Basis [Member] | Discontinued Operations [Member] | Asset Actions [Member] | Energy From Waste [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, held for sale, fair value	[2]					11
Nonrecurring Basis [Member] | Level 1 [Member] | Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Long Lived Assets Held-for-sale [Line Items]
Investment in Equity Affiliate	[1]	0	0
Nonrecurring Basis [Member] | Level 1 [Member] | Continuing Operations [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, fair value	[2]					0
Nonrecurring Basis [Member] | Level 1 [Member] | Discontinued Operations [Member] | Asset Actions [Member] | Energy From Waste [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, held for sale, fair value	[2]					0
Nonrecurring Basis [Member] | Level 2 [Member] | Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Long Lived Assets Held-for-sale [Line Items]
Investment in Equity Affiliate	[1]	0	0
Nonrecurring Basis [Member] | Level 2 [Member] | Continuing Operations [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, fair value	[2]					0
Nonrecurring Basis [Member] | Level 2 [Member] | Discontinued Operations [Member] | Asset Actions [Member] | Energy From Waste [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, held for sale, fair value	[2]					0
Nonrecurring Basis [Member] | Level 3 [Member] | Abdullah Hashim Industrial Gas & Equipment Co. Ltd [Member]
Long Lived Assets Held-for-sale [Line Items]
Investment in Equity Affiliate	[1]	$ 68.5	$ 68.5
Nonrecurring Basis [Member] | Level 3 [Member] | Continuing Operations [Member] | Asset Actions [Member] | Industrial Gases - EMEA [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, fair value	[2]					1.4
Nonrecurring Basis [Member] | Level 3 [Member] | Discontinued Operations [Member] | Asset Actions [Member] | Energy From Waste [Member]
Long Lived Assets Held-for-sale [Line Items]
Plant and Equipment, held for sale, fair value	[2]					$ 11
[1]	We assessed the recoverability of the carrying value of our equity investment in AHG. We estimated the fair value of our investment using weighting of the results of the income and market approaches. An impairment loss was recognized for the difference between the carrying amount and the fair value of the investment as of 30 June 2017. For additional information, see Note 7, Equity Affiliates.
[2]	We assessed the recoverability of the carrying value of assets associated with the EfW discontinued operation, including the air separation unit within continuing operations of our Industrial Gases – EMEA segment. We based our estimates primarily on an orderly liquidation valuation which resulted in losses for the difference between the orderly liquidation value and net book value of the assets as of 31 December 2016. There have been no significant updates to our estimates as of 30 June 2017. For additional information, see Note 3, Discontinued Operations, and Note 5, Cost Reduction and Asset Actions.

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, impairment charge	$ 145.3	$ 145.3
Fair Value [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, impairment charge	145.3
Intangible asset, impairment charge	$ 16.8

Retirement Benefits (Narrative)

Retirement Benefits (Narrative) (Details) - USD ($) $ in Millions	Jan. 03, 2017	Oct. 01, 2016	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss			$ 5.5			$ 1	$ 9.6	$ 3
Decrease in underfunded status of pension plan due to transfer to spin-off company		$ 24
Effect on accumulated other comprehensive loss related to transfer of defined benefit plan assets and obligations		$ 5
Decrease in underfunded status of pension plan due to sale of business	$ 7
Company contributions							57	68.6	$ 79.3
Continuing Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension settlement loss							9.6	$ 3
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Total expected contributions for current fiscal year			65				65
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Total expected contributions for current fiscal year			$ 85				85
Materials Technologies [Member]
Defined Benefit Plan Disclosure [Line Items]
Periodic benefit costs including settlement, curtailment, termination benefits, and other costs							$ 6
Materials Technologies [Member] | Business Separation Costs [Member]
Defined Benefit Plan Disclosure [Line Items]
Periodic benefit costs including settlement, curtailment, termination benefits, and other costs					$ 2.5
Materials Technologies [Member] | Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Periodic benefit costs including settlement, curtailment, termination benefits, and other costs				$ 3.5

Retirement Benefits (Schedule o

Retirement Benefits (Schedule of Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Settlements	$ 5.5	$ 1	$ 9.6	$ 3
Defined Benefit Pension Plan [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	7	9.1	22.2	27.4
Interest cost	27.5	27.7	80	83.1
Expected return on plan assets	(51.6)	(50.5)	(156)	(151.5)
Prior service cost amortization	0.6	0.7	1.8	2.2
Actuarial loss amortization	20.9	21.3	67.9	63.9
Settlements	5.5	1	9.6	3.6
Curtailment			4.3	0
Special termination benefits	0.8	1.4	1.8	2
Other	0	0	0	0
Net periodic benefit cost	10.7	10.7	31.6	30.7
Defined Benefit Pension Plan [Member] | U.S. [Member] | Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	0	1.9	0.7	5.8
Defined Benefit Pension Plan [Member] | U.S. [Member] | Continuing Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	10.7	8.8	30.9	24.9
Defined Benefit Pension Plan [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	6.5	6.1	19.5	18.4
Interest cost	8.2	11.2	23.7	33.9
Expected return on plan assets	(18.9)	(19.8)	(55.7)	(60.1)
Prior service cost amortization	0	0	(0.1)	(0.1)
Actuarial loss amortization	13.5	8.9	40.6	27.2
Settlements	0	0	1.7	0
Curtailment			(1.3)	0
Special termination benefits	0	0	0.5	0
Other	0.2	0.6	0.7	1.6
Net periodic benefit cost	9.5	7	29.6	20.9
Defined Benefit Pension Plan [Member] | International [Member] | Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	0	0.2	4.1	1.8
Defined Benefit Pension Plan [Member] | International [Member] | Continuing Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	9.5	6.8	25.5	19.1
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0.2	0.5	0.9	1.6
Interest cost	0.4	0.5	1.2	1.5
Expected return on plan assets	0	0	0	0
Prior service cost amortization	0	0	0	0
Actuarial loss amortization	0	0.2	0.2	0.5
Settlements	0	0	0	0
Curtailment			0	0
Special termination benefits	0	0	0	0
Other	0	0	0	0
Net periodic benefit cost	0.6	1.2	2.3	3.6
Other Postretirement Benefits Plan [Member] | Discontinued Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	0	0.1	0	0.1
Other Postretirement Benefits Plan [Member] | Continuing Operations [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	$ 0.6	$ 1.1	$ 2.3	$ 3.5

Commitments and Contingencies (

Commitments and Contingencies (Litigation and Environmental - Narrative) (Details) BRL in Millions	1 Months Ended	9 Months Ended
	Sep. 30, 2010BRL	Jun. 30, 2017USD ($)site	Jun. 30, 2017BRLsite	Sep. 30, 2016USD ($)
Alleged Anticompete Litigation [Member]
Loss Contingencies [Line Items]
Civil fines imposed	BRL 179.2	$ 54,000,000
Provision for litigation		0
Maximum of loss contingency range subject to interest		$ 54,000,000	BRL 179.2
Environmental [Member]
Loss Contingencies [Line Items]
Approximate number of sites on which settlement has not been reached | site		32	32
Accrual for environmental loss contingencies		$ 84,800,000		$ 81,400,000
Accrual for environmental loss contingencies, maximum payout period		30 years
Environmental [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies		$ 84,000,000
Environmental [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies		$ 98,000,000

Commitments and Contingencies67

Commitments and Contingencies (Pace, Piedmont, Pasadena - Narrative) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2012	Sep. 30, 2008	Sep. 30, 2006
Pace, Florida [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 29,200,000			$ 42,000,000
Years to complete environmental remediation				20 years beginning in 2006
Change in estimated exposure	0
Pace, Florida [Member] | Minimum [Member]
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies				$ 42,000,000
Pace, Florida [Member] | Maximum [Member]
Loss Contingencies [Line Items]
Estimate of possible exposure from environmental loss contingencies				52,000,000
Pace, Florida [Member] | Discontinued Operations [Member]
Loss Contingencies [Line Items]
Pretax environmental expense				$ 42,000,000
Piedmont, South Carolina [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 16,900,000		$ 24,000,000
Years to complete environmental remediation	until 2019 to complete source area remediation with groundwater recovery and treatment, continuing through 2029
Piedmont, South Carolina [Member] | Discontinued Operations [Member]
Loss Contingencies [Line Items]
Pretax environmental expense			$ 24,000,000
Pasadena, Texas Member [Member]
Loss Contingencies [Line Items]
Accrual for environmental loss contingencies	$ 12,100,000
Years to complete environmental remediation	until 2,042
Total anticipated exposure		$ 13,000,000

Share-Based Compensation (Narra

Share-Based Compensation (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant	4,820,627		4,820,627
Incremental share-based compensation expense	$ 8,900,000	$ 7,500,000	$ 27,400,000	$ 23,900,000
Market-Based Deferred Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units/shares granted			117,692
Performance period			3 years
Weighted average grant date fair value (in dollars per unit/share)			$ 156.87
Time-Based Deferred Stock Unit [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units/shares granted			160,389
Weighted average grant date fair value (in dollars per unit/share)			$ 143.66
Anti-dilution award adjustment [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental share-based compensation expense			$ 0

Share-Based Compensation (Compe

Share-Based Compensation (Compensation Cost Recognized in Income Statement) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Before-Tax Share-Based Compensation Cost	$ 8.9	$ 7.5	$ 27.4	$ 23.9
Income Tax Benefit	(3.2)	(2.9)	(9.5)	(8.4)
After-Tax Share-Based Compensation Cost	$ 5.7	$ 4.6	$ 17.9	$ 15.5

Share-Based Compensation (Marke

Share-Based Compensation (Market-Based Deferred Stock Unit Valuation Assumptions) (Details) - Market-Based Deferred Stock Unit [Member]	9 Months Ended
	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	20.60%
Risk-free interest rate	1.40%
Expected dividend yield	2.50%

Equity (Changes in Equity) (Det

Equity (Changes in Equity) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		$ 9,420.2	$ 7,053.1	$ 7,213.4	$ 7,381.1
Net income		104.1	354.1	2,546.2	260.6
Other comprehensive income (loss)		176.8	(79.7)	161.8	2.3
Dividends on common stock		(207)	(186.2)	(601)	(546.7)
Dividends to noncontrolling interests		(7.9)	(8.4)	(19.5)	(23.2)
Share-based compensation		8.9	7.5	27.4	23.9
Treasury shares for stock option and award plans		17.8	32	25.5	62.8
Tax benefit of stock option and award plans	[1]		6.8		16.5
Spin-off of Versum				152.6
Cumulative change in accounting principle	[1]			8.8
Other equity transactions		(3)	1	(5.3)	2.9
Balance, end of period		$ 9,509.9	$ 7,180.2	$ 9,509.9	$ 7,180.2
Dividends per share (in dollars per share)		$ 0.95	$ 0.86	$ 2.76	$ 2.53
Air Products Shareholders' Equity [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		$ 9,317.4	$ 6,916.6	$ 7,079.6	$ 7,249
Net income		101.9	346.8	2,531.7	237.1
Other comprehensive income (loss)		176.6	(79)	159.7	0.2
Dividends on common stock		(207)	(186.2)	(601)	(546.7)
Dividends to noncontrolling interests				0
Share-based compensation		8.9	7.5	27.4	23.9
Treasury shares for stock option and award plans		17.8	32	25.5	62.8
Tax benefit of stock option and award plans	[1]		6.8		16.5
Spin-off of Versum				186.5
Cumulative change in accounting principle	[1]			8.8
Other equity transactions		(3.2)	0.9	(5.8)	2.6
Balance, end of period		9,412.4	7,045.4	9,412.4	7,045.4
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period		102.8	136.5	133.8	132.1
Net income		2.2	7.3	14.5	23.5
Other comprehensive income (loss)		0.2	(0.7)	2.1	2.1
Dividends to noncontrolling interests		(7.9)	(8.4)	(19.5)	(23.2)
Spin-off of Versum				(33.9)
Other equity transactions		0.2	0.1	0.5	0.3
Balance, end of period		$ 97.5	$ 134.8	$ 97.5	$ 134.8
[1]	Refer to Note 2, New Accounting Guidance, for information concerning the implementation and impact of new accounting guidance.

Accumulated Other Comprehensi72

Accumulated Other Comprehensive Loss (Rollforward) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance			$ 7,079.6
Other comprehensive income (loss) before reclassifications	$ 164.5		11.5
Amounts reclassified from AOCL	12.3		150.3
Total Other Comprehensive Income (Loss)	176.8	$ (79.7)	161.8	$ 2.3
Spin-off of Versum			11.5
Amount attributable to noncontrolling interests	0.2	$ (0.7)	2.1	$ 2.1
Ending balance	9,412.4		9,412.4
Derivatives qualifying as hedges [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(58.5)		(65)
Other comprehensive income (loss) before reclassifications	23		(2.2)
Amounts reclassified from AOCL	(23.6)		7.8
Total Other Comprehensive Income (Loss)	(0.6)		5.6
Spin-off of Versum			0.2
Amount attributable to noncontrolling interests	0		(0.1)
Ending balance	(59.1)		(59.1)
Foreign currency translation adjustments [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,027.7)		(949.3)
Other comprehensive income (loss) before reclassifications	141.4		9.8
Amounts reclassified from AOCL	8.2		57.3
Total Other Comprehensive Income (Loss)	149.6		67.1
Spin-off of Versum			6
Amount attributable to noncontrolling interests	0.2		2.1
Ending balance	(878.3)		(878.3)
Pension and postretirement benefits [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,307.5)		(1,374)
Other comprehensive income (loss) before reclassifications	0.1		3.9
Amounts reclassified from AOCL	27.7		85.2
Total Other Comprehensive Income (Loss)	27.8		89.1
Spin-off of Versum			5.3
Amount attributable to noncontrolling interests	0		0.1
Ending balance	(1,279.7)		(1,279.7)
AOCL attributable to Air Products [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(2,393.7)		(2,388.3)
Ending balance	$ (2,217.1)		$ (2,217.1)

Accumulated Other Comprehensi73

Accumulated Other Comprehensive Loss (Reclassification) (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other income (expense), net		$ (26.3)	$ (11.1)	$ (73)	$ (29.3)
Interest expense		29.8	35.1	89.8	83
Cost reduction and asset actions		42.7	13.2	103	23.9
Income (loss) from discontinued operations, net of tax		(2.3)	98.4	1,871.5	(567)
Net Income (Loss) Attributable to Air Products		(101.9)	(346.8)	(2,531.7)	(237.1)
Reclassification out of Accumulated Other Comprehensive Income [Member] | (Gain) Loss on Cash Flow Hedges, net of tax [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Sales/Cost of sales		4.3	1	10.1	2.4
Other income (expense), net		(29)	5.5	(2.4)	(30.5)
Interest expense		1.1	3.5	0.1	7.7
Net Income (Loss) Attributable to Air Products		(23.6)	10	7.8	(20.4)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Currency Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost reduction and asset actions	[1]	8.2	0	8.2	0
Income (loss) from discontinued operations, net of tax	[2]	0	(0.1)	49.1	2.7
Net Income (Loss) Attributable to Air Products		(8.2)	0.1	(57.3)	(2.7)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension and Postretirement Benefits, net of tax [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net Income (Loss) Attributable to Air Products	[3]	$ 27.7	$ 21.6	$ 85.2	$ 65.4
[1]	Impact relates to the planned sale of a non-industrial gas hardgoods business in the Industrial Gases – Americas segment.
[2]	The fiscal year 2017 impact relates to the sale of PMD during the second quarter. The fiscal year 2016 impact primarily relates to the sale of an equity affiliate in the first quarter.
[3]	The components include items such as prior service cost amortization, actuarial loss amortization, and settlements and are reflected in net periodic benefit cost. Refer to Note 12, Retirement Benefits.

Earnings per Share (Schedule of

Earnings per Share (Schedule of Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Income from continuing operations	$ 104.2	$ 250.3	$ 660.2	$ 810.1
Income (Loss) from discontinued operations	(2.3)	96.5	1,871.5	(573)
Net Income Attributable to Air Products	$ 101.9	$ 346.8	$ 2,531.7	$ 237.1
Weighted average common shares — Basic (in shares)	218.1	216.6	217.9	216.1
Effect of dilutive securities - Employee stock option and other award plans (in shares)	1.7	1.9	1.9	1.9
Weighted average common shares — Diluted (in shares)	219.8	218.5	219.8	218
Earnings Per Share, Basic [Abstract]
Income from continuing operations, basic (in dollars per share)	$ 0.48	$ 1.16	$ 3.03	$ 3.75
Income (Loss) from discontinued operations, basic (in dollars per share)	(0.01)	0.44	8.59	(2.65)
Net Income (Loss) Attributable to Air Products (in dollars per share)	0.47	1.60	11.62	1.10
Earnings Per Share, Diluted [Abstract]
Income from continuing operations, diluted (in dollars per share)	0.47	1.15	3	3.72
Income (Loss) from discontinued operations, diluted (in dollars per share)	(0.01)	0.44	8.52	(2.63)
Net Income (Loss) Attributable to Air Products (in dollars per share)	$ 0.46	$ 1.59	$ 11.52	$ 1.09

Earnings per Share (Narrative)

Earnings per Share (Narrative) (Details) - shares	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Earnings Per Share [Abstract]
Antidilutive share-based awards excluded from computation of diluted earnings per share (in shares)	0	200,000	0	200,000

Supplemental Information (Narra

Supplemental Information (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	Mar. 31, 2017	Jul. 20, 2017	Jun. 30, 2017	Jun. 30, 2016	Mar. 30, 2017
Supplemental Information [Abstract]
Income tax payments, net of refunds			$ 1,109.8	$ 330.1
Subsequent Event [Member]
Subsequent Event [Line Items]
Dividend declared, per share		$ 0.95
Dividends payable, date to be paid		Nov. 13, 2017
Dividends payable, date of record		Oct. 10, 2017
Revolving Credit Facility [Member] | Credit Agreement 2017 [Member]
Debt Instrument [Line Items]
Credit facility, initiation date	Mar. 31, 2017
Term of credit facility (in years)	5 years
Credit facility, maximum borrowing capacity	$ 2,500
Debt covenant, maximum ratio of total debt to capitalization	70.00%
Credit facility, amount outstanding			$ 0
Revolving Credit Facility [Member] | Credit Agreement 2013 [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 2,690
Credit facility, amount outstanding	$ 0
Credit facility, expiration date	Apr. 30, 2018
Credit facility, early termination fees	$ 0

Business Segment Information (N

Business Segment Information (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Sales	$ 2,121.9	$ 1,914.5	$ 5,984.5	$ 5,558.2
Operating income (loss)	252.6	394.6	971.9	1,138.7
Contracts Accounted for under Percentage of Completion [Member] | Industrial Gases - Global [Member]
Segment Reporting Information [Line Items]
Operating income (loss)	15		27
Intersegment Eliminations [Member] | Industrial Gases - Global [Member]
Segment Reporting Information [Line Items]
Sales	$ 57.4	$ 63	$ 179.4	$ 174.2

Business Segment Information (S

Business Segment Information (Schedule of Segment Reporting Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016
Segment Reporting Information [Line Items]
Sales	$ 2,121.9	$ 1,914.5	$ 5,984.5	$ 5,558.2
Operating income (loss)	252.6	394.6	971.9	1,138.7
Depreciation and amortization			634.8	642.1
Equity affiliates' income (loss)	(36.9)	42.1	35.3	107.7
Total assets	17,853.8		17,853.8		$ 18,028.6
Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	2,121.9	1,914.5	5,984.5	5,558.2
Operating income (loss)	462.9	418.3	1,276.8	1,194.5
Depreciation and amortization	216.9	213.5	634.8	642.1
Equity affiliates' income (loss)	42.6	42.1	114.8	107.7
Total assets	17,844		17,844		16,060.1
Industrial Gases - Americas [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	930.1	832.3	2,684.1	2,466.7
Operating income (loss)	236.2	234	684.5	669.1
Depreciation and amortization	117	112.1	344.8	330.9
Equity affiliates' income (loss)	14.1	16	41.8	38.2
Total assets	5,765.6		5,765.6		5,896.7
Industrial Gases - EMEA [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	451.7	428.7	1,265.6	1,290.1
Operating income (loss)	94.1	104	268.6	286.3
Depreciation and amortization	45.1	45.1	128.9	140.1
Equity affiliates' income (loss)	15.7	11.3	33.5	26.1
Total assets	3,205.4		3,205.4		3,178.6
Industrial Gases - Asia [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	538.3	449	1,412.5	1,271.5
Operating income (loss)	149.1	118.7	379.2	341
Depreciation and amortization	49.6	49.5	145.6	150.2
Equity affiliates' income (loss)	12.5	14.8	38.9	43.9
Total assets	4,262.6		4,262.6		4,232.7
Industrial Gases - Global [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	187.4	150.8	551.8	341.7
Operating income (loss)	27.9	(13.9)	58.9	(44)
Depreciation and amortization	2.3	2	6	5.9
Equity affiliates' income (loss)	0.3	0	0.6	(0.5)
Total assets	283.6		283.6		367.6
Corporate and other [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales	14.4	53.7	70.5	188.2
Operating income (loss)	(44.4)	(24.5)	(114.4)	(57.9)
Depreciation and amortization	2.9	4.8	9.5	15
Equity affiliates' income (loss)	0	$ 0	0	$ 0
Total assets	$ 4,326.8		$ 4,326.8		$ 2,384.5

Business Segment Information (R

Business Segment Information (Reconciliation of Operating Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Business separation costs	$ 0	$ (9.5)	$ (30.2)	$ (28.9)
Cost reduction and asset actions	(42.7)	(13.2)	(103)	(23.9)
Pension settlement loss	(5.5)	(1)	(9.6)	(3)
Goodwill and intangible asset impairment charge	(162.1)	0	(162.1)	0
Operating Income	252.6	394.6	971.9	1,138.7
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income	462.9	418.3	1,276.8	1,194.5
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Business separation costs	0	(9.5)	(30.2)	(28.9)
Cost reduction and asset actions	(42.7)	(13.2)	(103)	(23.9)
Pension settlement loss	(5.5)	(1)	(9.6)	(3)
Goodwill and intangible asset impairment charge	$ (162.1)	$ 0	$ (162.1)	$ 0

Business Segment Information 80

Business Segment Information (Reconciliation of Equity Affiliates' Income) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Segment Reporting Information [Line Items]
Equity affiliates' income (loss)	$ (36.9)	$ 42.1	$ 35.3	$ 107.7
Equity method investment impairment charge			79.5	0
Operating Segments [Member]
Segment Reporting Information [Line Items]
Equity affiliates' income (loss)	42.6	42.1	114.8	107.7
Segment Reconciling Items [Member]
Segment Reporting Information [Line Items]
Equity method investment impairment charge	$ (79.5)	$ 0	$ (79.5)	$ 0

Business Segment Information 81

Business Segment Information (Reconciliation of Assets) (Details) - USD ($) $ in Millions	Jun. 30, 2017	Sep. 30, 2016
Segment Reporting Information [Line Items]
Total assets	$ 17,853.8	$ 18,028.6
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Assets of discontinued operations	9.8	1,968.5
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total assets	17,844	16,060.1
Segment Reconciling Items [Member] | Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Assets of discontinued operations	$ 9.8	$ 1,968.5