Johnson Controls International (JCI) 8-K 23 Feb 17 2016 FY Other Events Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Sep. 30, 2016
Document Documentand Entity Information [Abstract]
Document Type	8-K
Amendment Flag	false
Document Period End Date	Sep. 30, 2016
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	FY
Trading Symbol	JCI
Entity Registrant Name	JOHNSON CONTROLS INTERNATIONAL PLC
Entity Central Index Key	833,444
Current Fiscal Year End Date	--09-30

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Net sales
Products and systems	[1]	$ 16,798	$ 13,434	$ 12,946
Services	[1]	4,039	3,666	3,771
Net sales		20,837	17,100	16,717
Cost of sales
Products and systems	[1]	12,448	10,051	9,871
Services	[1]	2,735	2,518	2,534
Cost of sales		15,183	12,569	12,405
Gross profit		5,654	4,531	4,312
Selling, general and administrative expenses		(4,190)	(3,191)	(2,994)
Restructuring and impairment costs		(288)	(215)	(165)
Net financing charges		(289)	(274)	(226)
Equity income		174	80	110
Income from continuing operations before income taxes		1,061	931	1,037
Income tax provision		197	71	93
Income from continuing operations		864	860	944
Income (loss) from discontinued operations, net of tax (Note 4)		(1,516)	819	399
Net income (loss)		(652)	1,679	1,343
Income from continuing operations attributable to noncontrolling interests		132	46	38
Income from discontinued operations attributable to noncontrolling interests		84	70	90
Net income (loss) attributable to Johnson Controls		(868)	1,563	1,215
Amounts attributable to Johnson Controls common shareholders
Income from continuing operations		732	814	906
Income (loss) from discontinued operations		$ 1,600	$ (749)	$ (309)
Earnings (loss) per share
Basic earnings (loss) per share from continuing operations		$ 1.10	$ 1.24	$ 1.36
Basic earnings (loss) per share from discontinued operations		(2.40)	1.14	0.46
Basic earnings (loss) per share	[2]	(1.30)	2.39	1.82
Diluted earnings (loss) per share from continuing operations		1.09	1.23	1.34
Diluted earnings (loss) per share from discontinued operations		(2.38)	1.13	0.46
Diluted earnings (loss) per share		$ (1.29)	$ 2.36	$ 1.80
[1]	Products and systems consist of Buildings and Power Solutions products and systems. Services are Buildings technical services.
[2]	Certain items do not sum due to rounding.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (652)	$ 1,679	$ 1,343
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(94)	(825)	(642)
Realized and unrealized gains (losses) on derivatives	9	(10)	(3)
Realized and unrealized losses on marketable securities	(1)	0	(7)
Pension and postretirement plans	(1)	(10)	(5)
Other comprehensive loss	(87)	(845)	(657)
Total Comprehensive income (loss)	(739)	834	686
Comprehensive income attributable to noncontrolling interests	225	91	126
Comprehensive income (loss) attributable to Johnson Controls	$ (964)	$ 743	$ 560

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Assets
Cash and cash equivalents	$ 579	$ 553
Accounts receivable, less allowance for doubtful accounts of $173 and $70, respectively	6,394	3,617
Inventories	2,888	1,665
Assets held for sale	5,812	3,759
Other current assets	1,436	875
Current assets	17,109	10,469
Property, plant and equipment - net	5,632	3,683
Goodwill	21,024	4,460
Other intangible assets - net	7,540	1,387
Investments in partially-owned affiliates	990	497
Noncurrent assets held for sale	7,374	6,854
Other noncurrent assets	3,510	2,240
Total assets	63,179	29,590
Liabilities and Equity
Short-term debt	1,078	35
Current portion of long-term debt	628	806
Accounts payable	4,000	2,580
Accrued compensation and benefits	1,333	698
Liabilities held for sale	4,276	3,998
Other current liabilities	5,016	2,329
Current liabilities	16,331	10,446
Long-term debt	11,053	5,367
Pension and postretirement benefits	1,550	649
Noncurrent liabilities held for sale	3,888	828
Other noncurrent liabilities	5,033	1,590
Long-term liabilities	21,524	8,434
Redeemable noncontrolling interests	234	212
Common Stock, Value, Issued	9	7
Common Stock A, Value, Issued	0	0
Preferred Stock, Value, Issued	0	0
Treasury stock, at cost (2016 - 452,083; 2015 - 69,671,840 shares)	(20)	(3,152)
Capital in excess of par value	16,105	3,740
Retained earnings	9,177	10,797
Accumulated other comprehensive loss	(1,153)	(1,057)
Shareholders’ equity attributable to Johnson Controls	24,118	10,335
Noncontrolling interests	972	163
Total equity	25,090	10,498
Total liabilities and equity	$ 63,179	$ 29,590

Consolidated Statements of Fin5

Consolidated Statements of Financial Position (Parenthetical) $ in Millions	Sep. 30, 2016€ / shares	Sep. 30, 2016USD ($)$ / sharesshares	Sep. 30, 2015€ / shares	Sep. 30, 2015USD ($)$ / sharesshares
Allowance for doubtful accounts | $		$ 173		$ 70
Common stock, par value | $ / shares		$ 0.01		$ 0.01
Common stock, shares authorized		1,800,000,000		1,800,000,000
Common stock, shares issued		936,247,911		717,039,108
Preferred Stock, Shares Authorized		200,000		200,000
Preferred Stock, Shares Issued		0		0
Preferred Stock, Par or Stated Value Per Share | $ / shares		$ 0.01		$ 0.01
Treasury stock, at cost, shares		452,083		69,671,840
Common Class A [Member]
Common stock, par value | € / shares	€ 1		€ 1
Common stock, shares authorized		40,000		40,000
Common stock, shares issued		0		0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Operating Activities
Net income (loss) attributable to Johnson Controls	$ (868)	$ 1,563	$ 1,215
Income from continuing operations attributable to noncontrolling interests	132	46	38
Income from discontinued operations attributable to noncontrolling interests	84	70	90
Net income (loss)	(652)	1,679	1,343
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	953	860	955
Pension and postretirement benefit expense	460	396	321
Pension and postretirement contributions	(137)	(409)	(161)
Equity in earnings of partially-owned affiliates, net of dividends received	(250)	(144)	(153)
Deferred income taxes	(1,241)	327	(329)
Non-cash restructuring and impairment charges	221	183	181
Loss (gain) on business divestitures - net	(26)	(1,340)	111
Fair value adjustment of equity investment	(4)	0	(38)
Equity-based compensation	142	90	82
Other	5	(1)	(2)
Changes in assets and liabilities, excluding acquisitions and divestitures:
Accounts receivable	(344)	(297)	(18)
Inventories	1	(99)	(311)
Other assets	148	(113)	(192)
Restructuring reserves	141	(6)	(31)
Accounts payable and accrued liabilities	398	348	440
Accrued income taxes	2,080	126	197
Cash provided by operating activities	1,895	1,600	2,395
Investing Activities
Capital expenditures	(1,249)	(1,135)	(1,199)
Sale of property, plant and equipment	32	37	79
Acquisition of businesses, net of cash acquired	353	(22)	(1,733)
Business divestitures	32	1,646	225
Changes in long-term investments	(48)	(44)	19
Other	(7)	(12)	16
Cash provided (used) by investing activities	(887)	470	(2,593)
Financing Activities
Increase (decrease) in short-term debt - net	556	(68)	73
Increase in long-term debt	1,501	299	2,001
Repayment of long-term debt	(1,299)	(191)	(833)
Payments of Financing Costs	(45)	0	0
Stock repurchases	(501)	(1,362)	(1,249)
Payment of cash dividends	(915)	(657)	(568)
Proceeds from the exercise of stock options	70	275	186
Cash paid to acquire a noncontrolling interest	(2)	(38)	(5)
Payments of Ordinary Dividends, Noncontrolling Interest	(306)	(68)	(55)
Other	8	(11)	38
Cash used by financing activities	(933)	(1,821)	(412)
Effect of exchange rate changes on cash and cash equivalents	12	(81)	(20)
Change in Cash Held For Sale	(61)
Change in cash held for sale		21	9
Increase (decrease) in cash and cash equivalents	26	189	(621)
Cash and cash equivalents at beginning of period	553	364	985
Cash and cash equivalents at end of period	$ 579	$ 553	$ 364

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity Attributable to Johnson Controls Ordinary Shareholders - USD ($) $ in Millions	Total	Ordinary Shares	Additional Paid-in Capital [Member]	Retained Earnings	Treasury Stock [Member]	AOCI Attributable to Parent [Member]
Beginning balance at Sep. 30, 2013	$ 12,273	$ 7	$ 3,092	$ 9,287	$ (531)	$ 418
Comprehensive income (loss) attributable to Johnson Controls	560	0	0	1,215	0	(655)
Common stock dividend	(586)	0	0	(586)	0	0
Repurchases of common stock	(1,249)	0	0	0	(1,249)	0
Other, including options exercised	(272)	0	(277)	1	4	0
Ending balance at Sep. 30, 2014	11,270	7	3,369	9,915	(1,784)	(237)
Comprehensive income (loss) attributable to Johnson Controls	743	0	0	1,563	0	(820)
Common stock dividend	(681)	0	0	(681)	0	0
Repurchases of common stock	(1,362)	0	0	0	(1,362)	0
Other, including options exercised	(365)	0	(371)	0	6	0
Ending balance at Sep. 30, 2015	10,335	7	3,740	10,797	(3,152)	(1,057)
Stockholders Equity, Change due to Merger	15,808	2	12,157	0	3,649	0
Comprehensive income (loss) attributable to Johnson Controls	(964)	0	0	(868)	0	(96)
Common stock dividend	(752)	0	0	(752)	0	0
Repurchases of common stock	(501)	0	0	0	(501)	0
Other, including options exercised	(192)	0	(208)	0	16	0
Ending balance at Sep. 30, 2016	$ 24,118	$ 9	$ 16,105	$ 9,177	$ (20)	$ (1,153)

Consolidated Statements of Sha8

Consolidated Statements of Shareholders' Equity Attributable to Johnson Controls Ordinary Shareholders (Parenthetical) - $ / shares	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Cash dividends common, per share	$ 1.16	$ 1.04	$ 0.88
Retained Earnings
Cash dividends common, per share	$ 1.16	$ 1.04	$ 0.88

Summary of Significant Accounti

Summary of Significant Accounting Policies (Notes)	12 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The consolidated financial statements include the consolidated accounts of Johnson Controls International plc, a corporation organized under the laws of Ireland, and its subsidiaries (Johnson Controls International plc and all its subsidiaries, hereinafter collectively referred to as the "Company" or "Johnson Controls"). Nature of Operations On September 2, 2016, Johnson Controls, Inc. ("JCI Inc.") and Tyco International plc (“Tyco”) completed their combination pursuant to the Agreement and Plan of Merger (the “Merger Agreement”), dated as of January 24, 2016, as amended by Amendment No. 1, dated as of July 1, 2016, by and among JCI Inc., Tyco and certain other parties named therein, including Jagara Merger Sub LLC, an indirect wholly owned subsidiary of Tyco (“Merger Sub”). Pursuant to the terms of the Merger Agreement, on September 2, 2016, Merger Sub merged with and into JCI Inc., with JCI Inc. being the surviving corporation in the merger and a wholly owned, indirect subsidiary of Tyco (the “Merger”). Following the Merger, Tyco changed its name to “Johnson Controls International plc.” The Merger changed the jurisdiction of organization from the United States to Ireland. The domicile to Ireland became effective on September 2, 2016. The merger was accounted for as a reverse acquisition using the acquisition method of accounting in accordance with Accounting Standards Codification ("ASC") 805, "Business Combinations." JCI Inc. was the accounting acquirer for financial reporting purposes. Accordingly, the historical consolidated financial statements of JCI Inc. for periods prior to this transaction are considered to be the historic financial statements of the Company. Refer to Note 2, "Merger Transaction," of the notes to consolidated financial statements for further information. On October 31, 2016, the Company completed the spin-off of its Automotive Experience business by way of the transfer of the Automotive Experience Business from Johnson Controls to Adient plc and the issuance of ordinary shares of Adient directly to holders of Johnson Controls ordinary shares on a pro rata basis. Prior to the open of business on October 31, 2016 , each of the Company's shareholders received one ordinary share of Adient plc for every 10 ordinary shares of Johnson Controls held as of the close of business on October 19, 2016, the record date for the distribution. Company shareholders received cash in lieu of fractional shares of Adient, if any. Following the separation and distribution, Adient plc is now an independent public company trading on the New York Stock Exchange ("NYSE") under the symbol "ADNT." The Company did not retain any equity interest in Adient plc. Adient’s historical financial results are reflected in the Company’s consolidated financial statements as a discontinued operation, which required retrospective application to financial information for all periods presented. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information. Principles of Consolidation The consolidated financial statements include the consolidated accounts of Johnson Controls International plc and its subsidiaries. The financial statements have been prepared in United States dollars ("USD") and in accordance with generally accepted accounting principles in the United States ("U.S. GAAP"). All significant intercompany transactions have been eliminated. The results of companies acquired or disposed of during the year are included in the consolidated financial statements from the effective date of acquisition or up to the date of disposal. Investments in partially-owned affiliates are accounted for by the equity method when the Company’s interest exceeds 20% and the Company does not have a controlling interest. Under certain criteria as provided for in Financial Accounting Standards Board ("FASB") ASC 810, "Consolidation," the Company may consolidate a partially-owned affiliate. To determine whether to consolidate a partially-owned affiliate, the Company first determines if the entity is a variable interest entity ("VIE"). An entity is considered to be a VIE if it has one of the following characteristics: 1) the entity is thinly capitalized; 2) residual equity holders do not control the entity; 3) equity holders are shielded from economic losses or do not participate fully in the entity’s residual economics; or 4) the entity was established with non-substantive voting. If the entity meets one of these characteristics, the Company then determines if it is the primary beneficiary of the VIE. The party with the power to direct activities of the VIE that most significantly impact the VIE’s economic performance and the potential to absorb benefits or losses that could be significant to the VIE is considered the primary beneficiary and consolidates the VIE. If the entity is not considered a VIE, then the Company applies the voting interest model to determine whether or not the Company shall consolidate the partially-owned affiliate. Consolidated VIEs Based upon the criteria set forth in ASC 810, the Company has determined that it was the primary beneficiary in three VIEs for the reporting periods ended September 30, 2016 and 2015 , as the Company absorbs significant economics of the entities and has the power to direct the activities that are considered most significant to the entities. Two of the VIEs manufacture products in North America for the automotive industry. The Company funded the entities’ short-term liquidity needs through revolving credit facilities and had the power to direct the activities that were considered most significant to the entities through its key customer supply relationships. These VIE's were divested as a result of the Adient spin-off in the first quarter of fiscal 2017. In fiscal 2012, a pre-existing VIE accounted for under the equity method was reorganized into three separate investments as a result of the counterparty exercising its option to put its interest to the Company. The Company acquired additional interests in two of the reorganized group entities. The reorganized group entities are considered to be VIEs as the other owner party has been provided decision making rights but does not have equity at risk. The Company is considered the primary beneficiary of one of the entities due to the Company’s power pertaining to decisions over significant activities of the entity. As such, this VIE has been consolidated within the Company’s consolidated statements of financial position. The impact of consolidation of the entity on the Company’s consolidated statements of income for the years ended September 30, 2016 , 2015 and 2014 was not material. The VIE is named as a co-obligor under a third party debt agreement of $170 million , maturing in fiscal 2020, under which it could become subject to paying more than its allocated share of the third party debt in the event of bankruptcy of one or more of the other co-obligors. The other co-obligors, all related parties in which the Company is an equity investor, consist of the remaining group entities involved in the reorganization. As part of the overall reorganization transaction, the Company has also provided financial support to the group entities in the form of loans totaling $37 million , which are subordinate to the third party debt agreement. The Company is a significant customer of certain co-obligors, resulting in a remote possibility of loss. Additionally, the Company is subject to a floor guaranty expiring in fiscal 2022; in the event that the other owner party no longer owns any part of the group entities due to sale or transfer, the Company has guaranteed that the proceeds received from the sale or transfer will not be less than $25 million . The Company has partnered with the group entities to design and manufacture battery components for the Power Solutions business. The carrying amounts and classification of assets (none of which are restricted) and liabilities included in the Company’s consolidated statements of financial position for the consolidated VIEs are as follows (in millions): September 30, 2016 2015 Current assets $ 284 $ 281 Noncurrent assets 98 128 Total assets $ 382 $ 409 Current liabilities $ 230 $ 232 Noncurrent liabilities 29 34 Total liabilities $ 259 $ 266 The Company did not have a significant variable interest in any other consolidated VIEs for the presented reporting periods. Nonconsolidated VIEs As mentioned previously within the "Consolidated VIEs" section above, in fiscal 2012, a pre-existing VIE was reorganized into three separate investments as a result of the counterparty exercising its option to put its interest to the Company. The reorganized group entities are considered to be VIEs as the other owner party has been provided decision making rights but does not have equity at risk. The Company is not considered to be the primary beneficiary of two of the entities as the Company cannot make key operating decisions considered to be most significant to the VIEs. Therefore, the entities are accounted for under the equity method of accounting as the Company’s interest exceeds 20% and the Company does not have a controlling interest. The Company’s maximum exposure to loss includes the partially-owned affiliate investment balance of $59 million and $62 million at September 30, 2016 and 2015 , respectively, as well as the subordinated loan from the Company, third party debt agreement and floor guaranty mentioned previously within the "Consolidated VIEs" section above. Current liabilities due to the VIEs are not material and represent normal course of business trade payables for all presented periods. The Company did not have a significant variable interest in any other nonconsolidated VIEs for the presented reporting periods. Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Fair Value of Financial Instruments The fair values of cash and cash equivalents, accounts receivable, short-term debt and accounts payable approximate their carrying values. See Note 10, "Derivative Instruments and Hedging Activities," and Note 11, "Fair Value Measurements," of the notes to consolidated financial statements for fair value of financial instruments, including derivative instruments, hedging activities and long-term debt. Assets and Liabilities Held for Sale The Company classifies assets and liabilities (disposal groups) to be sold as held for sale in the period in which all of the following criteria are met: management, having the authority to approve the action, commits to a plan to sell the disposal group; the disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such disposal groups; an active program to locate a buyer and other actions required to complete the plan to sell the disposal group have been initiated; the sale of the disposal group is probable, and transfer of the disposal group is expected to qualify for recognition as a completed sale within one year, except if events or circumstances beyond the Company's control extend the period of time required to sell the disposal group beyond one year; the disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. In addition, the Company classifies disposal groups to be disposed of other than by sale (e.g. spin-off) as held for sale in the period the disposal occurs. The Company initially measures a disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held for sale criteria are met. Conversely, gains are not recognized on the sale of a disposal group until the date of sale. The Company assesses the fair value of a disposal group less any costs to sell each reporting period it remains classified as held for sale and reports any subsequent changes as an adjustment to the carrying value of the disposal group, as long as the new carrying value does not exceed the carrying value of the disposal group at the time it was initially classified as held for sale. Upon determining that a disposal group meets the criteria to be classified as held for sale, the Company reports the assets and liabilities of the disposal group, if material, in the line items assets held for sale and liabilities held for sale in the consolidated statements of financial position. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information. Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents. Restricted Cash At September 30, 2016, the Company held restricted cash of approximately $88 million , of which $79 million was recorded within other current assets in the consolidated statements of financial position and $9 million was recorded within other noncurrent assets in the consolidated statements of financial position. These amounts were primarily related to cash held in escrow from business divestitures and cash restricted for payment of asbestos liabilities. As of September 30, 2015, the Company did not hold a material amount of restricted cash. Receivables Receivables consist of amounts billed and currently due from customers and unbilled costs and accrued profits related to revenues on long-term contracts that have been recognized for accounting purposes but not yet billed to customers. The Company extends credit to customers in the normal course of business and maintains an allowance for doubtful accounts resulting from the inability or unwillingness of customers to make required payments. The allowance for doubtful accounts is based on historical experience, existing economic conditions and any specific customer collection issues the Company has identified. The Company enters into supply chain financing programs to sell certain accounts receivable without recourse to third-party financial institutions. Sales of accounts receivable are reflected as a reduction of accounts receivable on the consolidated statements of financial position and the proceeds are included in cash flows from operating activities in the consolidated statements of cash flows. Inventories Inventories are stated at the lower of cost or market using the first-in, first-out ("FIFO") method. Finished goods and work-in-process inventories include material, labor and manufacturing overhead costs. Pre-Production Costs Related to Long-Term Supply Arrangements The Company’s policy for engineering, research and development, and other design and development costs related to products that will be sold under long-term supply arrangements requires such costs to be expensed as incurred or capitalized if reimbursement from the customer is contractually assured. Income related to recovery of these costs is recorded within income (loss) from discontinued operations, net of tax in the consolidated statements of income. At September 30, 2016 and 2015, the Company recorded within the consolidated statements of financial position approximately $316 million and $299 million , respectively, of engineering and research and development costs for which customer reimbursement is contractually assured. The reimbursable costs are recorded in assets held for sale if reimbursement will occur in less than one year and in noncurrent assets held for sale if reimbursement will occur beyond one year . Costs for molds, dies and other tools used to make products that will be sold under long-term supply arrangements are capitalized within property, plant and equipment if the Company has title to the assets or has the non-cancelable right to use the assets during the term of the supply arrangement. Capitalized items, if specifically designed for a supply arrangement, are amortized over the term of the arrangement; otherwise, amounts are amortized over the estimated useful lives of the assets. The carrying values of assets capitalized in accordance with the foregoing policy are periodically reviewed for impairment whenever events or changes in circumstances indicate that its carrying amount may not be recoverable. At September 30, 2016 and 2015, approximately $62 million and $60 million , respectively, of costs for molds, dies and other tools were capitalized within noncurrent assets held for sale which represented assets to which the Company had title. In addition, at September 30, 2016 and 2015, the Company recorded within the consolidated statements of financial position in assets held for sale approximately $203 million and $149 million , respectively, of costs for molds, dies and other tools for which customer reimbursement is contractually assured. Property, Plant and Equipment Property, plant and equipment are recorded at cost. Depreciation is provided over the estimated useful lives of the respective assets using the straight-line method for financial reporting purposes and accelerated methods for income tax purposes. The estimated useful lives generally range from 3 to 40 years for buildings and improvements, subscriber systems up to 15 years, and from 3 to 15 years for machinery and equipment. The Company capitalizes interest on borrowings during the active construction period of major capital projects. Capitalized interest is added to the cost of the underlying assets and is amortized over the useful lives of the assets. Goodwill and Indefinite-Lived Intangible Assets Goodwill reflects the cost of an acquisition in excess of the fair values assigned to identifiable net assets acquired. The Company reviews goodwill for impairment during the fourth fiscal quarter or more frequently if events or changes in circumstances indicate the asset might be impaired. The Company performs impairment reviews for its reporting units, which have been determined to be the Company’s reportable segments or one level below the reportable segments in certain instances, using a fair value method based on management’s judgments and assumptions or third party valuations. The fair value of a reporting unit refers to the price that would be received to sell the unit as a whole in an orderly transaction between market participants at the measurement date. In estimating the fair value, the Company uses multiples of earnings based on the average of historical, published multiples of earnings of comparable entities with similar operations and economic characteristics. In certain instances, the Company uses discounted cash flow analyses or estimated sales price to further support the fair value estimates. The inputs utilized in the analyses are classified as Level 3 inputs within the fair value hierarchy as defined in ASC 820, "Fair Value Measurement." The estimated fair value is then compared with the carrying amount of the reporting unit, including recorded goodwill. The Company is subject to financial statement risk to the extent that the carrying amount exceeds the estimated fair value. Refer to Note 7, "Goodwill and Other Intangible Assets," of the notes to consolidated financial statements for information regarding the goodwill impairment testing performed in the fourth quarters of fiscal years 2016 , 2015 and 2014 . Indefinite-lived intangible assets are also subject to at least annual impairment testing. Indefinite-lived intangible assets consist of trademarks and tradenames and are tested for impairment using a relief-from-royalty method. A considerable amount of management judgment and assumptions are required in performing the impairment tests. Impairment of Long-Lived Assets The Company reviews long-lived assets, including property, plant and equipment and other intangible assets with definite lives, for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. The Company conducts its long-lived asset impairment analyses in accordance with ASC 360-10-15, "Impairment or Disposal of Long-Lived Assets." ASC 360-10-15 requires the Company to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals. Refer to Note 17, "Impairment of Long-Lived Assets," of the notes to consolidated financial statements for information regarding the impairment testing performed in fiscal years 2016 , 2015 and 2014 . Percentage-of-Completion Contracts The Buildings business records certain long-term contracts under the percentage-of-completion ("POC") method of accounting. Under this method, sales and gross profit are recognized as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. The Company records costs and earnings in excess of billings on uncompleted contracts primarily within accounts receivable and billings in excess of costs and earnings on uncompleted contracts primarily within other current liabilities in the consolidated statements of financial position. Costs and earnings in excess of billings related to these contracts were $841 million and $453 million at September 30, 2016 and 2015 , respectively. Billings in excess of costs and earnings related to these contracts were $431 million and $340 million at September 30, 2016 and 2015 , respectively. Revenue Recognition The Buildings business recognizes revenue from certain long-term contracts over the contractual period under the POC method of accounting. This method of accounting recognizes sales and gross profit as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. Recognized revenues that will not be billed under the terms of the contract until a later date are recorded primarily in accounts receivable. Likewise, contracts where billings to date have exceeded recognized revenues are recorded primarily in other current liabilities. Changes to the original estimates may be required during the life of the contract and such estimates are reviewed monthly. Sales and gross profit are adjusted using the cumulative catch-up method for revisions in estimated total contract costs and contract values. Estimated losses are recorded when identified. Claims against customers are recognized as revenue upon settlement. The use of the POC method of accounting involves considerable use of estimates in determining revenues, costs and profits and in assigning the amounts to accounting periods. The periodic reviews have not resulted in adjustments that were significant to the Company’s results of operations. The Company continually evaluates all of the assumptions, risks and uncertainties inherent with the application of the POC method of accounting. The Buildings business enters into extended warranties and long-term service and maintenance agreements with certain customers. For these arrangements, revenue is recognized on a straight-line basis over the respective contract term. The Buildings business also sells certain heating, ventilating and air conditioning ("HVAC") and refrigeration products and services in bundled arrangements, where multiple products and/or services are involved. Significant deliverables within these arrangements include equipment, commissioning, service labor and extended warranties. Approximately four to twelve months separate the timing of the first deliverable until the last piece of equipment is delivered, and there may be extended warranty arrangements with duration of one to five years commencing upon the end of the standard warranty period. In addition, the Building's business sells security monitoring systems that may have multiple elements, including equipment, installation, monitoring services and maintenance agreements. Revenues associated with sale of equipment and related installations are recognized once delivery, installation and customer acceptance is completed, while the revenue for monitoring and maintenance services are recognized as services are rendered. In accordance with ASU No. 2009-13, "Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements - A Consensus of the FASB Emerging Issues Task Force," the Company divides bundled arrangements into separate deliverables and revenue is allocated to each deliverable based on the relative selling price method. In order to estimate relative selling price, market data and transfer price studies are utilized. Revenue recognized for security monitoring equipment and installation is limited to the lesser of their allocated amounts under the estimated selling price hierarchy or the non-contingent up-front consideration received at the time of installation, since collection of future amounts under the arrangement with the customer is contingent upon the delivery of monitoring and maintenance services. For transactions in which the Company retains ownership of the subscriber system asset, fees for monitoring and maintenance services are recognized on a straight-line basis over the contract term. Non-refundable fees received in connection with the initiation of a monitoring contract, along with associated direct and incremental selling costs, are deferred and amortized over the estimated life of the customer relationship. In all other cases, the Company recognizes revenue at the time title passes to the customer or as services are performed. Subscriber System Assets, Dealer Intangibles and Related Deferred Revenue Accounts The Tyco portion of the Buildings business considers assets related to the acquisition of new customers in its electronic security business in three asset categories: internally generated residential subscriber systems outside of North America, internally generated commercial subscriber systems (collectively referred to as subscriber system assets) and customer accounts acquired through the ADT dealer program, primarily outside of North America (referred to as dealer intangibles). Subscriber system assets include installed property, plant and equipment for which the Company retains ownership and deferred costs directly related to the customer acquisition and system installation. Subscriber system assets represent capitalized equipment (e.g. security control panels, touchpad, motion detectors, window sensors, and other equipment) and installation costs associated with electronic security monitoring arrangements under which the Company retains ownership of the security system assets in a customer's place of business, or outside of North America, residence. Installation costs represent costs incurred to prepare the asset for its intended use. The Company pays property taxes on the subscriber system assets and upon customer termination, may retrieve such assets. These assets embody a probable future economic benefit as they generate future monitoring revenue for the Company. Costs related to the subscriber system equipment and installation are categorized as property, plant and equipment rather than deferred costs. Deferred costs associated with subscriber system assets represent direct and incremental selling expenses (such as commissions) related to acquiring the customer. Commissions related to up-front consideration paid by customers in connection with the establishment of the monitoring arrangement are determined based on a percentage of the up-front fees and do not exceed deferred revenue. Such deferred costs are recorded as other current and noncurrent assets within the consolidated statements of financial position. Subscriber system assets and any deferred revenue resulting from the customer acquisition are accounted for over the expected life of the subscriber. In certain geographical areas where the Company has a large number of customers that behave in a similar manner over time, the Company accounts for subscriber system assets and related deferred revenue using pools, with separate pools for the components of subscriber system assets and any related deferred revenue based on the same month and year of acquisition. The Company depreciates its pooled subscriber system assets and related deferred revenue using a straight-line method with lives up to 15 years and considering customer attrition. The Company uses a straight-line method with a 15 -year life for non-pooled subscriber system assets (primarily in Europe, Latin America and Asia) and related deferred revenue, with remaining balances written off upon customer termination. Certain contracts and related customer relationships result from purchasing residential security monitoring contracts from an external network of independent dealers who operate under the ADT dealer program, primarily outside of North America. Acquired contracts and related customer relationships are recorded at their contractually determined purchase price. During the first 6 months ( 12 months in certain circumstances) after the purchase of the customer contract, any cancellation of monitoring service, including those that result from customer payment delinquencies, results in a chargeback by the Company to the dealer for the full amount of the contract purchase price. The Company records the amount charged back to the dealer as a reduction of the previously recorded intangible asset. Intangible assets arising from the ADT dealer program described above are amortized in pools determined by the same month and year of contract acquisition on a straight-line basis over the period of the customer relationship. The estimated useful life of dealer intangibles ranges from 12 to 15 years. Research and Development Costs Expenditures for research activities relating to product development and improvement are charged against income as incurred and included within selling, general and administrative expenses for continuing operations in the consolidated statements of income. Such expenditures for the years ended September 30, 2016 , 2015 and 2014 were $158 million , $134 million and $125 million , respectively. Earnings Per Share The Company presents both basic and diluted earnings per share ("EPS") amounts. Basic EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of common shares outstanding during the reporting period. Diluted EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of common shares and common equivalent shares outstanding during the reporting period that are calculated using the treasury stock method for stock options and unvested restricted stock. See Note 13, "Earnings per Share," of the notes to consolidated financial statements for the calculation of earnings per share. Foreign Currency Translation Substantially all of the Company’s international operations use the respective local currency as the functional currency. Assets and liabilities of international entities have been translated at period-end exchange rates, and income and expenses have been translated using average exchange rates for the period. Monetary assets and liabilities denominated in non-functional currencies are adjusted to reflect period-end exchange rates. The aggregate transaction losses, net of the impact of foreign currency hedges, included in net income for the years ended September 30, 2016 , 2015 and 2014 were $95 million , $119 million and $8 million , respectively. Derivative Financial Instruments The Company has written policies and procedures that place all financial instruments under the direction of Corporate treasury and restrict all derivative transactions to those intended for hedging purposes. The use of financial instruments for specula

Merger Transaction (Notes)

Merger Transaction (Notes)	12 Months Ended
	Sep. 30, 2016
Merger Transaction [Abstract]
Mergers, Acquisitions and Dispositions Disclosures [Text Block]	MERGER TRANSACTION As discussed in Note 1, "Summary of Significant Accounting Policies," of the notes to consolidated financial statements, JCI Inc. and Tyco completed the Merger on September 2, 2016. The Merger was accounted for as a reverse acquisition using the acquisition method of accounting in accordance with ASC 805, "Business Combinations." Based on the structure of the Merger and other activities contemplated by the Merger Agreement, relative outstanding share ownership, the composition of the Company's board of directors and the designation of certain senior management positions of the Company, JCI Inc. was the accounting acquirer for financial reporting purposes. Immediately prior to the Merger and in connection therewith, Tyco shareholders received 0.955 ordinary shares of Tyco (which shares are now referred to as shares of the Company, or “Company ordinary shares”) for each Tyco ordinary share they held by virtue of a 0.955-for-one share consolidation. In the Merger, each outstanding share of common stock, par value $1.00 per share, of JCI Inc. ("JCI Inc. common stock") (other than shares held by JCI Inc., Tyco and certain of their subsidiaries) was converted into the right to receive either the cash consideration or the share consideration (each as described below), at the election of the holder, subject to proration procedures described in the Merger Agreement and applicable withholding taxes. The election to receive the cash consideration was undersubscribed. As a result, holders of shares of JCI Inc. common stock that elected to receive the share consideration and holders of shares of JCI Inc. common stock that made no election (or failed to properly make an election) became entitled to receive, for each such share of JCI Inc. common stock, $5.7293 in cash, without interest, and 0.8357 Company ordinary shares, subject to applicable withholding taxes. Holders of shares of JCI Inc. common stock that elected to receive the cash consideration became entitled to receive, for each such share of JCI Inc. common stock, $34.88 in cash, without interest, subject to applicable withholding taxes. In the merger, JCI Inc. shareholders received, in the aggregate, approximately $3.864 billion in cash. Immediately after the closing of, and giving effect to, the Merger, former JCI Inc. shareholders owned approximately 56% of the issued and outstanding Company ordinary shares and former Tyco stockholders owned approximately 44% of the issued and outstanding Company ordinary shares. Tyco is a leading global provider of security products and services, fire detection and suppression products and services, and life safety products. The acquisition of Tyco brings together best-in-class product, technology and service capabilities across controls, fire, security, HVAC, power solutions and energy storage, to serve various end-markets including large institutions, commercial buildings, retail, industrial, small business and residential. The combination of the Tyco and JCI Inc. buildings platforms is expected to create immediate opportunities for near-term growth through cross-selling, complementary branch and channel networks, and expanded global reach for established businesses. The new Company is also expected to benefit by combining innovation capabilities and pipelines involving new products, advanced solutions for smart buildings and cities, value-added services driven by advanced data and analytics and connectivity between buildings and energy storage through infrastructure integration. Fair Value of Consideration Transferred The total fair value of consideration transferred was approximately $19.7 billion . Total consideration is comprised of the equity value of the Tyco shares that were outstanding as of September 2, 2016 and the portion of Tyco's share awards and share options earned as of September 2, 2016 ( $224 million ). Share awards and share options not earned ( $101 million ) as of September 2, 2016 will be expensed over the remaining future vesting period, including $10 million and $23 million recognized in selling, general and administrative expenses and restructuring and impairment costs, respectively, for the fiscal year ended September 30, 2016 as a result of change-in-control provisions for current and former employees. The following table summarizes the total fair value of consideration transferred: (in millions, except for share consolidation ratio and share data) Number of Tyco shares outstanding at September 2, 2016 427,181,743 Tyco share consolidation ratio 0.955 Tyco ordinary shares outstanding following the share consolidation and immediately prior to the merger 407,958,565 JCI Inc. converted share price (1) $ 47.67 Fair value of equity portion of the merger consideration $ 19,447 Fair value of Tyco equity awards 224 Total fair value of consideration transferred $ 19,671 (1) Amount equals JCI Inc. closing share price and market capitalization at September 2, 2016 ( $45.45 and $29,012 million , respectively) adjusted for the Tyco $3,864 million cash contribution used to purchase 110.8 million shares of JCI Inc. common stock for $34.88 per share. Fair Value of Assets Acquired and Liabilities Assumed The Company accounted for the merger with Tyco as a business combination using the acquisition method of accounting. The assets acquired and liabilities assumed were recorded at their respective fair values as of the acquisition date. As the Company finalizes the fair value of assets acquired and liabilities assumed, additional purchase price adjustments may be recorded during the measurement period in fiscal 2017. Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact the Company's results of operations. The finalization of the purchase accounting assessment may result in a change in the valuation of assets acquired and liabilities assumed and may have a material impact on the Company's results of operations and financial position. The preliminary fair values of the assets acquired and liabilities assumed are as follows (in millions): Cash and cash equivalents $ 489 Accounts receivable 1,648 Inventories 829 Other current assets 1,062 Property, plant, and equipment - net 1,224 Goodwill 16,363 Intangible assets - net 6,203 Other noncurrent assets 560 Total assets acquired $ 28,378 Short-term debt $ 462 Accounts payable 711 Accrued compensation and benefits 305 Other current liabilities 1,608 Long-term debt 6,416 Long-term deferred tax liabilities 1,173 Long-term pension and postretirement benefits 774 Other noncurrent liabilities 1,088 Total liabilities acquired $ 12,537 Noncontrolling interests 34 Net assets acquired $ 15,807 Cash consideration paid to JCI Inc. shareholders 3,864 Total fair value of consideration transferred $ 19,671 In connection with the merger, the Company recorded goodwill of $16.4 billion , which is attributable primarily to expected synergies, expanded market opportunities, and other benefits that the Company believes will result from combining its operations with the operations of Tyco. The goodwill created in the merger is not expected to be deductible for tax purposes and is subject to potential significant changes as the purchase price allocation is completed. Goodwill has preliminarily been allocated to the Tyco segment based on how the business was reviewed by the Company's Chief Operating Decision Maker in the fourth quarter of fiscal 2016 as shown in Note 7, "Goodwill and Other Intangible Assets." The preliminary purchase price allocation to identifiable intangible assets acquired are as follows: Preliminary Fair Value (in millions) Weighted Average Life (in years) Customer relationships $ 2,280 11 Completed technology 1,530 10 Other definite-lived intangibles 223 8 Indefinite-lived trademarks 2,020 Other indefinite-lived intangibles 90 In-process research and development 60 Total identifiable intangible assets $ 6,203 Actual and Pro Forma Impact The Company's consolidated financial statements for the fiscal year ended September 30, 2016 include Tyco's results of operations from the acquisition date of September 2, 2016 through September 30, 2016. Net sales and net income (loss) from continuing operations attributable to Tyco during this period and included in the Company's consolidated financial statements for the fiscal year ended September 30, 2016 total $808 million and ($48) million , respectively. The following unaudited pro forma information assumes the acquisition had occurred on October 1, 2014, and had been included in the Company's consolidated statements of income for fiscal years 2016 and 2015 . Year Ended September 30, (in millions) 2016 2015 Pro forma net sales $ 29,647 $ 26,908 Pro forma net income from continuing operations 1,143 848 In order to reflect the occurrence of the acquisition on October 1, 2014 as required, the unaudited pro forma results include adjustments to reflect, among other things, the amortization of the inventory step-up, the incremental intangible asset amortization to be incurred based on the preliminary values of each identifiable intangible asset, the change in timing of defined benefit plans' mark-to-market gain or loss recognition, the change in timing of transaction and restructuring costs, and interest expense from debt financing obtained to fund the cash consideration paid to JCI Inc. shareholders. These pro forma amounts are not necessarily indicative of the results that would have been obtained if the acquisition had occurred as of the beginning of the period presented or that may occur in the future, and does not reflect future synergies, integration costs, or other such costs or savings. Additional information regarding fiscal 2016 pro forma information can be found in the Form 8-K filed by the Company with the SEC on November 8, 2016 under Item 7.01, “Regulation FD Disclosure.” ACQUISITIONS AND DIVESTITURES Fiscal Year 2016 On October 1, 2015, the Company formed a joint venture with Hitachi to expand its Building Efficiency product offerings. The Company acquired a 60 percent ownership interest in the new entity for approximately $133 million ( $563 million purchase price less cash acquired of $430 million ). The purchase price, net of cash acquired, was paid as of September 30, 2016. In connection with the acquisition, the Company recorded goodwill of $253 million related to purchase price allocations. Also during fiscal 2016, the Company completed two additional acquisitions for a combined purchase price, net of cash acquired, of $6 million , $3 million of which was paid as of September 30, 2016. The acquisitions in aggregate were not material to the Company's consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill of $6 million . One of the acquisitions increased the Company's ownership from a noncontrolling to controlling interest. As a result, the Company recorded a non-cash gain of $4 million in equity income for the Building Efficiency Rest of World segment to adjust the Company's existing equity investment in the partially-owned affiliate to fair value. In the fourth quarter of fiscal 2016, the Company completed two divestitures for a combined sales price of $39 million , exclusive of net cash divested of $13 million . None of the sales proceeds were received as of September 30, 2016. The divestitures were not material to the Company's consolidated financial statements. In connection with the divestitures, the Company recorded a gain of $12 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $13 million and $3 million in the Building Efficiency Rest of World segment and Building Efficiency Products North America segment, respectively. In the third quarter of fiscal 2016, the Company completed a divestiture for a sales price of $16 million , all of which was received as of September 30, 2016. The divestiture was not material to the Company's consolidated financial statements. In connection with the divestiture, the Company recorded a gain of $14 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $3 million in the Building Efficiency Systems and Service North America segment. During fiscal 2016, the Company received $29 million in net cash proceeds related to prior year business divestitures. Fiscal Year 2015 During fiscal 2015, the Company completed three acquisitions for a combined purchase price, net of cash acquired, of $47 million , $18 million of which was paid as of September 30, 2015. The acquisitions in the aggregate were not material to the Company’s consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill in assets held for sale of $9 million . In the fourth quarter of fiscal 2015, the Company completed the sale of its Global Workplace Solutions ("GWS") business to CBRE Group, Inc. The selling price, net of cash divested, was $1.4 billion , all of which was received as of September 30, 2015. In connection with the sale, the Company recorded a $940 million gain, $643 million net of tax, within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $220 million . At March 31, 2015, the Company determined that the GWS segment met the criteria to be classified as a discontinued operation. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further disclosure related to the Company's discontinued operations. In the fourth quarter of fiscal 2015, the Company completed its global automotive interiors joint venture with Yanfeng Automotive Trim Systems. In connection with the divestiture of the Interiors business, the Company recorded a $145 million gain, $38 million net of tax. The gain is recorded within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $21 million . Also during fiscal 2015, the Company completed four additional divestitures for a combined sales price of $119 million , $86 million of which was received as of September 30, 2015. The divestitures were not material to the Company's consolidated financial statements. In connection with the divestitures, the Company recorded a gain of $38 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $14 million in the Building Efficiency Products North America segment, recorded a gain of $10 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $4 million , and recorded a gain of $7 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $2 million in the Building Efficiency Systems and Service North America segment. In the first nine months of fiscal 2015, the Company adjusted the purchase price allocation of the fiscal 2014 acquisition of Air Distribution Technologies Inc. ("ADTi"). The adjustment was made as a result of a true-up to the purchase price in the amount of $4 million , all of which was paid as of September 30, 2015. Also, in connection with this acquisition, the Company recorded additional goodwill of $34 million in fiscal 2015 related to the final purchase price allocations. In the second quarter of fiscal 2015, the Company completed the sale of its interests in two GWS joint ventures to Brookfield Asset Management, Inc. The selling price, net of cash divested, was $141 million , all of which was received as of September 30, 2015. In connection with the sale, the Company recorded a $200 million gain, $127 million net of tax, within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $20 million . Fiscal Year 2014 In the third quarter of fiscal 2014, the Company completed its purchase of ADTi for approximately $1.6 billion , net of cash acquired, all of which was paid as of June 30, 2014. ADTi is one of the largest independent providers of air distribution and ventilation products in North America. In the third quarter of fiscal 2014, the Company completed a public offering of $1.7 billion aggregate principal amount of fixed rate senior notes to finance the purchase of ADTi. In fiscal 2014, the Company recorded goodwill of $837 million in the Building Efficiency Products North America segment as a result of the ADTi acquisition. The Company also recorded approximately $477 million of intangible assets that are subject to amortization, of which approximately $475 million was assigned to customer relationships with useful lives between 18 and 20 years. In addition, the Company recorded approximately $230 million of trade names that are not subject to amortization. Also during fiscal 2014, the Company completed four additional acquisitions for a combined purchase price, net of cash acquired, of $144 million , all of which was paid as of September 30, 2014. The acquisitions in the aggregate were not material to the Company's consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill of $140 million . Three of the acquisitions increased the Company's ownership from a noncontrolling to controlling interest. As a result, the Company recorded a combined non-cash gain of $38 million in equity income to adjust the Company's existing equity investments in the partially-owned affiliates to fair value. The $38 million gain includes $19 million for the Power Solutions business and $19 million for the Building Efficiency Asia business. In the third quarter of fiscal 2014, the Company completed the divestiture of the Automotive Experience Interiors headliner and sun visor product lines. As part of this divestiture, the Company made a cash payment of $54 million to the buyer to fund future operational improvement initiatives. The Company recorded a pre-tax loss on divestiture, including transaction costs, of $95 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income. The tax impact of the divestiture was income tax expense of $38 million due to the jurisdictional mix of gains and losses on the sale, which resulted in non-benefited losses in certain countries and taxable gains in other countries. There was no change in goodwill as a result of this transaction. In the third quarter of fiscal 2014, the Company recorded a $25 million charge within income (loss) from discontinued operations, net of tax, on the consolidated statements of income related to the indemnification of certain costs associated with a divested GWS business in 2004. In the second quarter of fiscal 2014, the Company announced that it had reached an agreement to sell the remainder of its Automotive Experience Electronics business to Visteon Corporation, subject to regulatory and other approvals. The sale closed on July 1, 2014. The cash proceeds from the sale were $266 million , all of which was received as of September 30, 2014. At March 31, 2014, the Company determined that the Automotive Experience Electronics segment met the criteria to be classified as a discontinued operation. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further disclosure related to the Company's discontinued operations. In the first quarter of fiscal 2014, the Company completed one additional divestiture for a sales price of $13 million , all of which was received as of September 30, 2014. The divestiture was not material to the Company’s consolidated financial statements. In connection with the divestiture, the Company recorded a gain, net of transaction costs, of $9 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income. There was no change in goodwill as a result of this transaction. During fiscal 2014, the Company adjusted the purchase price allocation of certain fiscal 2013 acquisitions and recorded additional goodwill in assets held for sale of $2 million .

Acquisitions and Divestitures (

Acquisitions and Divestitures (Notes)	12 Months Ended
	Sep. 30, 2016
Disclosure Acquisitions And Divestitures [Abstract]
ACQUISITIONS AND DIVESTITURES	MERGER TRANSACTION As discussed in Note 1, "Summary of Significant Accounting Policies," of the notes to consolidated financial statements, JCI Inc. and Tyco completed the Merger on September 2, 2016. The Merger was accounted for as a reverse acquisition using the acquisition method of accounting in accordance with ASC 805, "Business Combinations." Based on the structure of the Merger and other activities contemplated by the Merger Agreement, relative outstanding share ownership, the composition of the Company's board of directors and the designation of certain senior management positions of the Company, JCI Inc. was the accounting acquirer for financial reporting purposes. Immediately prior to the Merger and in connection therewith, Tyco shareholders received 0.955 ordinary shares of Tyco (which shares are now referred to as shares of the Company, or “Company ordinary shares”) for each Tyco ordinary share they held by virtue of a 0.955-for-one share consolidation. In the Merger, each outstanding share of common stock, par value $1.00 per share, of JCI Inc. ("JCI Inc. common stock") (other than shares held by JCI Inc., Tyco and certain of their subsidiaries) was converted into the right to receive either the cash consideration or the share consideration (each as described below), at the election of the holder, subject to proration procedures described in the Merger Agreement and applicable withholding taxes. The election to receive the cash consideration was undersubscribed. As a result, holders of shares of JCI Inc. common stock that elected to receive the share consideration and holders of shares of JCI Inc. common stock that made no election (or failed to properly make an election) became entitled to receive, for each such share of JCI Inc. common stock, $5.7293 in cash, without interest, and 0.8357 Company ordinary shares, subject to applicable withholding taxes. Holders of shares of JCI Inc. common stock that elected to receive the cash consideration became entitled to receive, for each such share of JCI Inc. common stock, $34.88 in cash, without interest, subject to applicable withholding taxes. In the merger, JCI Inc. shareholders received, in the aggregate, approximately $3.864 billion in cash. Immediately after the closing of, and giving effect to, the Merger, former JCI Inc. shareholders owned approximately 56% of the issued and outstanding Company ordinary shares and former Tyco stockholders owned approximately 44% of the issued and outstanding Company ordinary shares. Tyco is a leading global provider of security products and services, fire detection and suppression products and services, and life safety products. The acquisition of Tyco brings together best-in-class product, technology and service capabilities across controls, fire, security, HVAC, power solutions and energy storage, to serve various end-markets including large institutions, commercial buildings, retail, industrial, small business and residential. The combination of the Tyco and JCI Inc. buildings platforms is expected to create immediate opportunities for near-term growth through cross-selling, complementary branch and channel networks, and expanded global reach for established businesses. The new Company is also expected to benefit by combining innovation capabilities and pipelines involving new products, advanced solutions for smart buildings and cities, value-added services driven by advanced data and analytics and connectivity between buildings and energy storage through infrastructure integration. Fair Value of Consideration Transferred The total fair value of consideration transferred was approximately $19.7 billion . Total consideration is comprised of the equity value of the Tyco shares that were outstanding as of September 2, 2016 and the portion of Tyco's share awards and share options earned as of September 2, 2016 ( $224 million ). Share awards and share options not earned ( $101 million ) as of September 2, 2016 will be expensed over the remaining future vesting period, including $10 million and $23 million recognized in selling, general and administrative expenses and restructuring and impairment costs, respectively, for the fiscal year ended September 30, 2016 as a result of change-in-control provisions for current and former employees. The following table summarizes the total fair value of consideration transferred: (in millions, except for share consolidation ratio and share data) Number of Tyco shares outstanding at September 2, 2016 427,181,743 Tyco share consolidation ratio 0.955 Tyco ordinary shares outstanding following the share consolidation and immediately prior to the merger 407,958,565 JCI Inc. converted share price (1) $ 47.67 Fair value of equity portion of the merger consideration $ 19,447 Fair value of Tyco equity awards 224 Total fair value of consideration transferred $ 19,671 (1) Amount equals JCI Inc. closing share price and market capitalization at September 2, 2016 ( $45.45 and $29,012 million , respectively) adjusted for the Tyco $3,864 million cash contribution used to purchase 110.8 million shares of JCI Inc. common stock for $34.88 per share. Fair Value of Assets Acquired and Liabilities Assumed The Company accounted for the merger with Tyco as a business combination using the acquisition method of accounting. The assets acquired and liabilities assumed were recorded at their respective fair values as of the acquisition date. As the Company finalizes the fair value of assets acquired and liabilities assumed, additional purchase price adjustments may be recorded during the measurement period in fiscal 2017. Fair value estimates are based on a complex series of judgments about future events and uncertainties and rely heavily on estimates and assumptions. The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact the Company's results of operations. The finalization of the purchase accounting assessment may result in a change in the valuation of assets acquired and liabilities assumed and may have a material impact on the Company's results of operations and financial position. The preliminary fair values of the assets acquired and liabilities assumed are as follows (in millions): Cash and cash equivalents $ 489 Accounts receivable 1,648 Inventories 829 Other current assets 1,062 Property, plant, and equipment - net 1,224 Goodwill 16,363 Intangible assets - net 6,203 Other noncurrent assets 560 Total assets acquired $ 28,378 Short-term debt $ 462 Accounts payable 711 Accrued compensation and benefits 305 Other current liabilities 1,608 Long-term debt 6,416 Long-term deferred tax liabilities 1,173 Long-term pension and postretirement benefits 774 Other noncurrent liabilities 1,088 Total liabilities acquired $ 12,537 Noncontrolling interests 34 Net assets acquired $ 15,807 Cash consideration paid to JCI Inc. shareholders 3,864 Total fair value of consideration transferred $ 19,671 In connection with the merger, the Company recorded goodwill of $16.4 billion , which is attributable primarily to expected synergies, expanded market opportunities, and other benefits that the Company believes will result from combining its operations with the operations of Tyco. The goodwill created in the merger is not expected to be deductible for tax purposes and is subject to potential significant changes as the purchase price allocation is completed. Goodwill has preliminarily been allocated to the Tyco segment based on how the business was reviewed by the Company's Chief Operating Decision Maker in the fourth quarter of fiscal 2016 as shown in Note 7, "Goodwill and Other Intangible Assets." The preliminary purchase price allocation to identifiable intangible assets acquired are as follows: Preliminary Fair Value (in millions) Weighted Average Life (in years) Customer relationships $ 2,280 11 Completed technology 1,530 10 Other definite-lived intangibles 223 8 Indefinite-lived trademarks 2,020 Other indefinite-lived intangibles 90 In-process research and development 60 Total identifiable intangible assets $ 6,203 Actual and Pro Forma Impact The Company's consolidated financial statements for the fiscal year ended September 30, 2016 include Tyco's results of operations from the acquisition date of September 2, 2016 through September 30, 2016. Net sales and net income (loss) from continuing operations attributable to Tyco during this period and included in the Company's consolidated financial statements for the fiscal year ended September 30, 2016 total $808 million and ($48) million , respectively. The following unaudited pro forma information assumes the acquisition had occurred on October 1, 2014, and had been included in the Company's consolidated statements of income for fiscal years 2016 and 2015 . Year Ended September 30, (in millions) 2016 2015 Pro forma net sales $ 29,647 $ 26,908 Pro forma net income from continuing operations 1,143 848 In order to reflect the occurrence of the acquisition on October 1, 2014 as required, the unaudited pro forma results include adjustments to reflect, among other things, the amortization of the inventory step-up, the incremental intangible asset amortization to be incurred based on the preliminary values of each identifiable intangible asset, the change in timing of defined benefit plans' mark-to-market gain or loss recognition, the change in timing of transaction and restructuring costs, and interest expense from debt financing obtained to fund the cash consideration paid to JCI Inc. shareholders. These pro forma amounts are not necessarily indicative of the results that would have been obtained if the acquisition had occurred as of the beginning of the period presented or that may occur in the future, and does not reflect future synergies, integration costs, or other such costs or savings. Additional information regarding fiscal 2016 pro forma information can be found in the Form 8-K filed by the Company with the SEC on November 8, 2016 under Item 7.01, “Regulation FD Disclosure.” ACQUISITIONS AND DIVESTITURES Fiscal Year 2016 On October 1, 2015, the Company formed a joint venture with Hitachi to expand its Building Efficiency product offerings. The Company acquired a 60 percent ownership interest in the new entity for approximately $133 million ( $563 million purchase price less cash acquired of $430 million ). The purchase price, net of cash acquired, was paid as of September 30, 2016. In connection with the acquisition, the Company recorded goodwill of $253 million related to purchase price allocations. Also during fiscal 2016, the Company completed two additional acquisitions for a combined purchase price, net of cash acquired, of $6 million , $3 million of which was paid as of September 30, 2016. The acquisitions in aggregate were not material to the Company's consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill of $6 million . One of the acquisitions increased the Company's ownership from a noncontrolling to controlling interest. As a result, the Company recorded a non-cash gain of $4 million in equity income for the Building Efficiency Rest of World segment to adjust the Company's existing equity investment in the partially-owned affiliate to fair value. In the fourth quarter of fiscal 2016, the Company completed two divestitures for a combined sales price of $39 million , exclusive of net cash divested of $13 million . None of the sales proceeds were received as of September 30, 2016. The divestitures were not material to the Company's consolidated financial statements. In connection with the divestitures, the Company recorded a gain of $12 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $13 million and $3 million in the Building Efficiency Rest of World segment and Building Efficiency Products North America segment, respectively. In the third quarter of fiscal 2016, the Company completed a divestiture for a sales price of $16 million , all of which was received as of September 30, 2016. The divestiture was not material to the Company's consolidated financial statements. In connection with the divestiture, the Company recorded a gain of $14 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $3 million in the Building Efficiency Systems and Service North America segment. During fiscal 2016, the Company received $29 million in net cash proceeds related to prior year business divestitures. Fiscal Year 2015 During fiscal 2015, the Company completed three acquisitions for a combined purchase price, net of cash acquired, of $47 million , $18 million of which was paid as of September 30, 2015. The acquisitions in the aggregate were not material to the Company’s consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill in assets held for sale of $9 million . In the fourth quarter of fiscal 2015, the Company completed the sale of its Global Workplace Solutions ("GWS") business to CBRE Group, Inc. The selling price, net of cash divested, was $1.4 billion , all of which was received as of September 30, 2015. In connection with the sale, the Company recorded a $940 million gain, $643 million net of tax, within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $220 million . At March 31, 2015, the Company determined that the GWS segment met the criteria to be classified as a discontinued operation. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further disclosure related to the Company's discontinued operations. In the fourth quarter of fiscal 2015, the Company completed its global automotive interiors joint venture with Yanfeng Automotive Trim Systems. In connection with the divestiture of the Interiors business, the Company recorded a $145 million gain, $38 million net of tax. The gain is recorded within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $21 million . Also during fiscal 2015, the Company completed four additional divestitures for a combined sales price of $119 million , $86 million of which was received as of September 30, 2015. The divestitures were not material to the Company's consolidated financial statements. In connection with the divestitures, the Company recorded a gain of $38 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $14 million in the Building Efficiency Products North America segment, recorded a gain of $10 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $4 million , and recorded a gain of $7 million within selling, general and administrative expenses on the consolidated statements of income and reduced goodwill by $2 million in the Building Efficiency Systems and Service North America segment. In the first nine months of fiscal 2015, the Company adjusted the purchase price allocation of the fiscal 2014 acquisition of Air Distribution Technologies Inc. ("ADTi"). The adjustment was made as a result of a true-up to the purchase price in the amount of $4 million , all of which was paid as of September 30, 2015. Also, in connection with this acquisition, the Company recorded additional goodwill of $34 million in fiscal 2015 related to the final purchase price allocations. In the second quarter of fiscal 2015, the Company completed the sale of its interests in two GWS joint ventures to Brookfield Asset Management, Inc. The selling price, net of cash divested, was $141 million , all of which was received as of September 30, 2015. In connection with the sale, the Company recorded a $200 million gain, $127 million net of tax, within income (loss) from discontinued operations, net of tax, on the consolidated statements of income and reduced goodwill in assets held for sale by $20 million . Fiscal Year 2014 In the third quarter of fiscal 2014, the Company completed its purchase of ADTi for approximately $1.6 billion , net of cash acquired, all of which was paid as of June 30, 2014. ADTi is one of the largest independent providers of air distribution and ventilation products in North America. In the third quarter of fiscal 2014, the Company completed a public offering of $1.7 billion aggregate principal amount of fixed rate senior notes to finance the purchase of ADTi. In fiscal 2014, the Company recorded goodwill of $837 million in the Building Efficiency Products North America segment as a result of the ADTi acquisition. The Company also recorded approximately $477 million of intangible assets that are subject to amortization, of which approximately $475 million was assigned to customer relationships with useful lives between 18 and 20 years. In addition, the Company recorded approximately $230 million of trade names that are not subject to amortization. Also during fiscal 2014, the Company completed four additional acquisitions for a combined purchase price, net of cash acquired, of $144 million , all of which was paid as of September 30, 2014. The acquisitions in the aggregate were not material to the Company's consolidated financial statements. In connection with the acquisitions, the Company recorded goodwill of $140 million . Three of the acquisitions increased the Company's ownership from a noncontrolling to controlling interest. As a result, the Company recorded a combined non-cash gain of $38 million in equity income to adjust the Company's existing equity investments in the partially-owned affiliates to fair value. The $38 million gain includes $19 million for the Power Solutions business and $19 million for the Building Efficiency Asia business. In the third quarter of fiscal 2014, the Company completed the divestiture of the Automotive Experience Interiors headliner and sun visor product lines. As part of this divestiture, the Company made a cash payment of $54 million to the buyer to fund future operational improvement initiatives. The Company recorded a pre-tax loss on divestiture, including transaction costs, of $95 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income. The tax impact of the divestiture was income tax expense of $38 million due to the jurisdictional mix of gains and losses on the sale, which resulted in non-benefited losses in certain countries and taxable gains in other countries. There was no change in goodwill as a result of this transaction. In the third quarter of fiscal 2014, the Company recorded a $25 million charge within income (loss) from discontinued operations, net of tax, on the consolidated statements of income related to the indemnification of certain costs associated with a divested GWS business in 2004. In the second quarter of fiscal 2014, the Company announced that it had reached an agreement to sell the remainder of its Automotive Experience Electronics business to Visteon Corporation, subject to regulatory and other approvals. The sale closed on July 1, 2014. The cash proceeds from the sale were $266 million , all of which was received as of September 30, 2014. At March 31, 2014, the Company determined that the Automotive Experience Electronics segment met the criteria to be classified as a discontinued operation. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further disclosure related to the Company's discontinued operations. In the first quarter of fiscal 2014, the Company completed one additional divestiture for a sales price of $13 million , all of which was received as of September 30, 2014. The divestiture was not material to the Company’s consolidated financial statements. In connection with the divestiture, the Company recorded a gain, net of transaction costs, of $9 million within income (loss) from discontinued operations, net of tax, on the consolidated statements of income. There was no change in goodwill as a result of this transaction. During fiscal 2014, the Company adjusted the purchase price allocation of certain fiscal 2013 acquisitions and recorded additional goodwill in assets held for sale of $2 million .

Discontinued Operations (Notes)

Discontinued Operations (Notes)	12 Months Ended
	Sep. 30, 2016
Assets and Liabilities Held for Sale [Abstract]
Discontinued Operations	DISCONTINUED OPERATIONS Adient As discussed in Note 1, "Summary of Significant Accounting Policies," of the notes to consolidated financial statements, on October 31, 2016, the Company completed the spin-off of its Automotive Experience business by way of the transfer of the Automotive Experience Business from Johnson Controls to Adient plc. The Company did not retain any equity interest in Adient plc. During the first quarter of fiscal 2017, the Company determined that Adient met the criteria to be classified as a discontinued operation and, as a result, Adient’s historical financial results are reflected in the Company’s consolidated financial statements as a discontinued operation, and assets and liabilities were retrospectively reclassified as assets and liabilities held for sale. The Company did not allocate any general corporate overhead to discontinued operations. The following table summarizes the results of Adient, reclassified as discontinued operations for the fiscal years ended September 30, 2016, 2015 and 2014 (in millions): Year Ended September 30, 2016 2015 2014 Net sales $ 16,837 $ 20,079 $ 22,032 Income from discontinued operations before income taxes 525 1,220 879 Provision for income taxes on discontinued operations 2,041 529 314 Income from discontinued operations attributable to noncontrolling interests, net of tax 84 66 67 Income (loss) from discontinued operations $ (1,600 ) $ 625 $ 498 For the fiscal year ended September 30, 2016, the income from discontinued operations before income taxes included separation costs ( $418 million ), significant restructuring and impairment costs ( $332 million ), and net mark-to market losses on pension and postretirement plans ( $110 million ). For the fiscal year ended September 30, 2015, the income from discontinued operations before income taxes included significant restructuring and impairment costs ( $182 million ), a net gain on a business divestiture ( $155 million ), transaction and separation costs ( $52 million ), and net mark-to market losses on pension and postretirement plans ( $6 million ). For the fiscal year ended September 30, 2014, the income from discontinued operations before income taxes included significant restructuring and impairment costs ( $159 million ), a net loss on business divestitures ( $86 million ) and net mark-to market losses on pension and postretirement plans ( $50 million ). In preparation for the spin-off of the Automotive Experience business in the first quarter of fiscal 2017, the Company incurred incremental tax expense of $95 million in fiscal 2016. The Company also completed substantial business reorganizations which resulted in total tax charges of $1,891 million in fiscal 2016. Included in this amount is the tax charge provided for in the third quarter of fiscal 2016 of $85 million for changes in entity tax status and the charge provided for in the second quarter of fiscal 2016 of $780 million for income tax expense on foreign undistributed earnings of certain non-U.S. subsidiaries. In fiscal 2016, the Company did provide U.S. income tax expense related to the restructuring and repatriation of cash for certain non-U.S. subsidiaries in connection with the Automotive Experience planned spin-off. At September 30, 2016 the Company needed to complete the final steps of Automotive Experience restructuring and, as a result, the Company provided deferred taxes of $24 million for the U.S. income tax expense on outside basis differences that will reverse upon the completion of the restructuring. In the fourth quarter of fiscal 2015, the Company completed its global automotive interiors joint venture with Yanfeng Automotive Trim Systems. Refer to Note 3, "Acquisitions and Divestitures," of the notes to consolidated financial statements for additional information. In connection with the divestiture of the Interiors business, the Company recorded a pre-tax gain on divestiture of $145 million , $38 million net of tax. The tax impact of the gain is due to the jurisdictional mix of gains and losses on the divestiture, which resulted in non-benefited expenses in certain countries and taxable gains in other countries. In addition, in the third and fourth quarters of fiscal 2015, the Company provided income tax expense for repatriation of cash and other tax reserves associated with the Automotive Experience Interiors joint venture transaction, which resulted in a tax charge of $75 million and $223 million , respectively. In the third quarter of fiscal 2014, the Company disposed of its Automotive Experience Interiors headliner and sun visor product lines. Refer to Note 3, "Acquisitions and Divestitures," of the notes to consolidated financial statements for additional information. As a result, the Company recorded a pre-tax loss on divestiture of $95 million and income tax expense of $38 million . The income tax expense is due to the jurisdictional mix of gains and losses on the sale, which resulted in non-benefited losses in certain countries and taxable gains in other countries. GWS On March 31, 2015, the Company announced that it had reached a definitive agreement to sell the remainder of the GWS business to CBRE Group Inc. ("CBRE"), subject to regulatory and other approvals. The sale closed on September 1, 2015. The agreement includes a 10 -year strategic relationship between the Company and CBRE. The Company is the preferred provider of HVAC equipment, building automation systems and related services to the portfolio of real estate and corporate facilities managed globally by CBRE and GWS. The Company also engages GWS for facility management services. The annual cash flows resulting from these activities with the legacy GWS business are not currently significant nor are they expected to become significant in the future. At March 31, 2015, the Company determined that its GWS segment met the criteria to be classified as a discontinued operation. The Company did not allocate any general corporate overhead to discontinued operations. There were no amounts related to the GWS business classified as discontinued operations for the fiscal year ended September 30, 2016. The following table summarizes the results of GWS, reclassified as discontinued operations for the fiscal years ended September 30, 2015 and 2014 (in millions): Year Ended September 30, 2015 2014 Net sales $ 3,025 $ 4,079 Income from discontinued operations before income taxes 1,203 119 Provision for income taxes on discontinued operations 1,075 75 Income from discontinued operations attributable to noncontrolling interests, net of tax 4 15 Income from discontinued operations $ 124 $ 29 For the fiscal year ended September 30, 2015, the income from discontinued operations before income taxes included a $940 million gain on divestiture for the remainder of the GWS business, a $200 million gain on divestiture of the Company's interest in two GWS joint ventures and current year transaction costs of $87 million . For the fiscal year ended September 30, 2014, the income from discontinued operations before income taxes included a $25 million charge related to the indemnification of certain costs associated with a divested GWS business in 2004. The effective tax rate is different than the U.S. statutory rate for fiscal 2015 primarily due to $680 million tax expense for repatriation of cash and other tax reserves, and the tax consequences of the sale of the GWS joint ventures ( $73 million ) and the remaining business ( $297 million ). The effective tax rate is different than the U.S. statutory rate for fiscal 2014 primarily due to a tax charge of $35 million related to the change in the Company's assertion over reinvestment of foreign undistributed earnings as well as a non-benefited loss related to the indemnification of certain costs associated with a divested business in 2004, partially offset by foreign tax rate differentials. Electronics In the second quarter of fiscal 2014, the Company announced that it had reached a definitive agreement to sell the remainder of the Automotive Experience Electronics business to Visteon Corporation, subject to regulatory and other approvals. The sale closed on July 1, 2014. At March 31, 2014, the Company determined that the Automotive Experience Electronics segment met the criteria to be classified as a discontinued operation, which required retrospective application to financial information for all periods presented. The Company did not allocate any general corporate overhead to discontinued operations. There were no amounts related to the Automotive Experience Electronics business classified as discontinued operations for the fiscal years ended September 30, 2016 and 2015. The following table summarizes the results of the Automotive Experience Electronics business, classified as discontinued operations for the fiscal years ended September 30, 2014 (in millions): Year Ended September 30, 2014 Net sales $ 1,027 Loss from discontinued operations before income taxes (8 ) Provision for income taxes on discontinued operations 202 Income from discontinued operations attributable to noncontrolling interests, net of tax 8 Loss from discontinued operations $ (218 ) For the year ended September 30, 2014, the discontinued operations before income taxes included divestiture-related losses of $80 million comprised of asset and investment impairment charges of $43 million , transaction costs of $27 million and severance obligations of $10 million . For the year ended September 30, 2014, the Company's effective tax rate for discontinued operations was different than the U.S. federal statutory rate primarily due to a second quarter discrete non-cash tax charge of $180 million related to the repatriation of foreign cash associated with the divestiture of the Electronics business and unbenefited foreign losses. Assets and Liabilities Held for Sale The following table summarizes the carrying value of Adient, reclassified as assets and liabilities held for sale at September 30, 2016 and 2015 (in millions): September 30, 2016 September 30, 2015 Cash $ 105 $ 44 Cash in escrow related to Adient debt 2,034 — Accounts receivable - net 2,071 2,134 Inventories 672 712 Other current assets 756 814 Assets held for sale $ 5,638 $ 3,704 Property, plant and equipment - net $ 2,240 $ 2,187 Goodwill 2,385 2,364 Other intangible assets - net 113 129 Investments in partially-owned affiliates 1,745 1,646 Other noncurrent assets 891 528 Noncurrent assets held for sale $ 7,374 $ 6,854 Short-term debt $ 41 $ 17 Current portion of long-term debt 38 7 Accounts payable 2,764 2,594 Accrued compensation and benefits 430 392 Other current liabilities 975 946 Liabilities held for sale $ 4,248 $ 3,956 Long-term debt $ 3,441 $ 346 Pension and postretirement benefits 188 118 Other noncurrent liabilities 259 364 Noncurrent liabilities held for sale $ 3,888 $ 828 The following table summarizes depreciation and amortization, capital expenditures, and significant operating and investing non-cash items related to Adient for the fiscal years ended September 30, 2016, 2015 and 2014 (in millions): Year Ended 2016 2015 2014 Depreciation and amortization $ 331 $ 333 $ 428 Pension and postretirement benefit expense 113 15 63 Equity in earnings of partially-owned affiliates (357 ) (295 ) (285 ) Deferred income taxes (476 ) (50 ) (90 ) Non-cash restructuring and impairment costs 87 27 52 (Gain) loss on divestitures — (155 ) 86 Equity-based compensation 16 16 14 Other (2 ) (4 ) 3 Capital expenditures (395 ) (455 ) (538 ) At September 30, 2016, $157 million of assets and $28 million of liabilities related to the security business in South Africa of the Buildings Tyco segment were classified as held for sale. There is also $17 million of certain Corporate assets that were classified as held for sale. The following table summarizes the carrying value of the Tyco assets and liabilities held for sale at September 30, 2016 (in millions): Accounts receivable - net $ 9 Inventories 7 Other current assets 3 Property, plant and equipment - net 15 Goodwill 89 Other intangible assets - net 30 Other noncurrent assets 4 Assets held for sale $ 157 Accounts payable $ 9 Other current liabilities 19 Liabilities held for sale $ 28 At September 30, 2015, $55 million of assets and $42 million of liabilities related to certain product lines of the Automotive Experience Interiors segment were classified as held for sale. At September 30, 2016 , these product lines no longer met the criteria to be classified as held for sale.

Inventories (Notes)

Inventories (Notes)	12 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories consisted of the following (in millions): September 30, 2016 2015 Raw materials and supplies $ 852 $ 534 Work-in-process 503 329 Finished goods 1,533 802 Inventories $ 2,888 $ 1,665

Property, Plant and Equipment (

Property, Plant and Equipment (Notes)	12 Months Ended
	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Property, plant and equipment consisted of the following (in millions): September 30, 2016 2015 Buildings and improvements $ 2,107 $ 1,767 Subscriber systems 448 — Machinery and equipment 5,137 4,151 Construction in progress 990 653 Land 367 183 Total property, plant and equipment 9,049 6,754 Less: accumulated depreciation (3,417 ) (3,071 ) Property, plant and equipment - net $ 5,632 $ 3,683 Interest costs capitalized during the fiscal years ended September 30, 2016 , 2015 and 2014 were $19 million , $25 million and $28 million , respectively. Accumulated depreciation related to capital leases at September 30, 2016 and 2015 was $16 million and $13 million , respectively.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets (Notes)	12 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	GOODWILL AND OTHER INTANGIBLE ASSETS The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the fiscal years ended September 30, 2016 and 2015 were as follows (in millions): September 30, 2014 Business Acquisitions Business Divestitures Currency Translation and Other September 30, 2015 Building Efficiency Systems and Service North America $ 982 $ — $ (2 ) $ (2 ) $ 978 Products North America 1,688 34 (14 ) (7 ) 1,701 Asia 414 — — (25 ) 389 Rest of World 345 — — (35 ) 310 Power Solutions 1,142 — — (60 ) 1,082 Total $ 4,571 $ 34 $ (16 ) $ (129 ) $ 4,460 September 30, 2015 Business Acquisitions Business Divestitures Currency Translation and Other September 30, 2016 Buildings Building Efficiency Systems and Service North America $ 978 $ — $ (3 ) $ — $ 975 Products North America 1,701 — (3 ) (1 ) 1,697 Asia 389 253 — 15 657 Rest of World 310 5 (13 ) (1 ) 301 Tyco — 16,364 — (56 ) 16,308 Power Solutions 1,082 — — 4 1,086 Total $ 4,460 $ 16,622 $ (19 ) $ (39 ) $ 21,024 In connection with the Tyco Merger, the Company recorded goodwill of $16,363 million based on the preliminary purchase price allocation. Refer to Note 2, "Merger Transaction," of the notes to consolidated financial statements for additional information. At September 30, 2014, accumulated goodwill impairment charges included $47 million related to the Building Efficiency Rest of World - Latin America reporting unit. There were no goodwill impairments resulting from fiscal 2016 and 2015 annual impairment tests. Except for recent acquisitions which are recorded at fair value, no reporting unit was determined to be at risk of failing step one of the goodwill impairment test. At October 1, 2015, the Company assessed goodwill for impairment in the Building Efficiency business due to the change in reportable segments as described in Note 19, "Segment Information," of the notes to consolidated financial statements. As a result, the Company performed impairment testing for goodwill under the new segments and determined that the estimated fair value of each reporting unit substantially exceeded its corresponding carrying amount including recorded goodwill, and as such, no impairment existed at October 1, 2015. No reporting unit was determined to be at risk of failing step one of the goodwill impairment test. During fiscal 2014, as a result of operating results, restructuring actions and expected future profitability, the Company's forecasted cash flow estimates used in the goodwill assessment were negatively impacted as of September 30, 2014 for the Building Efficiency Rest of World - Latin America reporting unit. As a result, the Company concluded that the carrying value of the Building Efficiency Rest of World - Latin America reporting unit exceeded its fair value as of September 30, 2014. The Company recorded a goodwill impairment charge of $47 million in the fourth quarter of fiscal 2014, which was determined by comparing the carrying value of the reporting unit's goodwill with the implied fair value of goodwill for the reporting unit. The Building Efficiency Rest of World - Latin America reporting unit has no remaining goodwill at September 30, 2016 and 2015 . The assumptions included in the impairment tests require judgment, and changes to these inputs could impact the results of the calculations. Other than management's projections of future cash flows, the primary assumptions used in the impairment tests were the weighted-average cost of capital and long-term growth rates. Although the Company's cash flow forecasts are based on assumptions that are considered reasonable by management and consistent with the plans and estimates management is using to operate the underlying businesses, there are significant judgments in determining the expected future cash flows attributable to a reporting unit. The impairment charges are non-cash expenses recorded within restructuring and impairment costs on the consolidated statements of income and did not adversely affect the Company's debt position, cash flow, liquidity or compliance with financial covenants. The Company’s other intangible assets, primarily from business acquisitions valued based on independent appraisals, consisted of (in millions): September 30, 2016 September 30, 2015 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Technology $ 1,528 $ (24 ) $ 1,504 $ 53 $ (48 ) $ 5 Customer relationships 3,168 (226 ) 2,942 875 (168 ) 707 Miscellaneous 519 (130 ) 389 236 (103 ) 133 Total amortized intangible assets 5,215 (380 ) 4,835 1,164 (319 ) 845 Unamortized intangible assets Trademarks/trade names 2,555 — 2,555 542 — 542 Miscellaneous 150 — 150 — — — 2,705 — 2,705 542 — 542 Total intangible assets $ 7,920 $ (380 ) $ 7,540 $ 1,706 $ (319 ) $ 1,387 Refer to Note 2, "Merger Transaction," of the notes to consolidated financial statements for additional information of intangibles recorded as a result of the Tyco Merger. Amortization of intangible assets included within continuing operations for the fiscal years ended September 30, 2016 , 2015 and 2014 was $116 million , $74 million and $61 million , respectively. Excluding the impact of any future acquisitions, the Company anticipates amortization for fiscal 2017 , 2018 , 2019 , 2020 and 2021 will be approximately $537 million , $424 million , $407 million , $398 million and $390 million , respectively. Excluding the nonrecurring amortization expense impact of select Tyco intangible assets, the Company expects its fiscal 2017 amortization expense to be $430 million . There were no indefinite lived intangible asset impairments resulting from fiscal 2016, 2015 and 2014 annual impairment tests.

Leases (Notes)

Leases (Notes)	12 Months Ended
	Sep. 30, 2016
Leases [Abstract]
LEASES	LEASES Certain administrative and production facilities and equipment are leased under long-term agreements. Most leases contain renewal options for varying periods, and certain leases include options to purchase the leased property during or at the end of the lease term. Leases generally require the Company to pay for insurance, taxes and maintenance of the property. Leased capital assets for continuing operations included in net property, plant and equipment, primarily buildings and improvements, were $23 million and $24 million at September 30, 2016 and 2015 , respectively. Other facilities and equipment are leased under arrangements that are accounted for as operating leases. Total rental expense for continuing and discontinued operations for the fiscal years ended September 30, 2016 , 2015 and 2014 was $402 million , $413 million and $459 million , respectively. Future minimum capital and operating lease payments and the related present value of capital lease payments for continuing and discontinued operations at September 30, 2016 were as follows (in millions): Capital Leases Operating Leases 2017 $ 5 $ 406 2018 4 310 2019 3 227 2020 3 156 2021 3 98 After 2021 12 155 Total minimum lease payments 30 $ 1,352 Interest (6 ) Present value of net minimum lease payments $ 24

Debt and Financing Arrangements

Debt and Financing Arrangements (Notes)	12 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
DEBT AND FINANCING ARRANGEMENTS	DEBT AND FINANCING ARRANGEMENTS Short-term debt consisted of the following (in millions): September 30, 2016 2015 Bank borrowings and commercial paper $ 1,078 $ 35 Weighted average interest rate on short-term debt outstanding 1.1 % 4.0 % In connection with the Tyco Merger, JCI Inc. replaced its $2.5 billion committed five -year credit facility scheduled to mature in August 2018 with a $2.0 billion committed four -year credit facility scheduled to mature in August 2020. Additionally, Tyco International Holding S.a.r.L. ("TSarl"), a wholly-owned subsidiary of Johnson Controls, entered into a $1.0 billion committed four -year credit facility scheduled to mature in August 2020. The facilities are used to support the Company's outstanding commercial paper. There were no draws on either committed credit facilities during the fiscal years ended September 30, 2016 and 2015. Average outstanding commercial paper for the fiscal year ended September 30, 2016 was $1,418 million , and there was $440 million outstanding as of September 30, 2016. Average outstanding commercial paper for the fiscal year ended September 30, 2015 was $1,537 million and there was none outstanding at September 30, 2015. In February 2016, the Company entered into a nine -month, $100 million floating rate term loan scheduled to mature in November 2016. Proceeds from the term loan were used for general corporate purposes. In February 2016, the Company terminated a 37 million euro committed revolving credit facility scheduled to mature in September 2016, and subsequently entered into a nine -month, 100 million euro, floating rate term loan scheduled to mature in October 2016. Proceeds from the term loan were used for general corporate purposes. In January 2016, the Company entered into a ten -month, $200 million , floating rate term loan scheduled to mature in October 2016. Proceeds from the term loan were used for general corporate purposes. In January 2016, the Company entered into a ten -month, $125 million , floating rate term loan scheduled to mature in October 2016. Proceeds from the term loan were used for general corporate purposes. Long-term debt consisted of the following (in millions; due dates by fiscal year): September 30, 2016 2015 Unsecured notes JCI Inc. - 5.5% due in 2016 ($800 million par value) — 800 JCI Inc. - 7.125% due in 2017 ($150 million par value) 149 153 JCI Inc. - 2.6% due in 2017 ($400 million par value) 404 404 JCI Inc. - 2.355% due in 2017 ($46 million par value) 46 46 JCI Inc. - 1.4% due in 2018 ($300 million par value) 301 303 JCI Inc. - 5.0% due in 2020 ($500 million par value) 499 499 JCI Inc. - 4.25% due 2021 ($500 million par value) 498 498 JCI Inc. - 3.75% due in 2022 ($450 million par value) 448 448 JCI Inc. - 3.625% due in 2024 ($500 million par value) 500 500 JCI Inc. - 6.0% due in 2036 ($400 million par value) 396 395 JCI Inc. - 5.7% due in 2041 ($300 million par value) 299 299 JCI Inc. - 5.25% due in 2042 ($250 million par value) 250 250 JCI Inc. - 4.625% due in 2044 ($450 million par value) 447 447 JCI Inc. - 6.95% due in 2046 ($125 million par value) 125 125 JCI Inc. - 4.95% due in 2064 ($450 million par value) 449 449 Tyco International Finance S.A. ("TIFSA") - 3.75% due in 2018 ($67 million par value) 69 — TIFSA - 4.625% due in 2023 ($42 million par value) 46 — TIFSA - 1.375% due in 2025 (EUR 500 million par value) 571 — TIFSA - 3.90% due in 2026 ($750 million par value) 824 — TIFSA - 5.125% due in 2045 ($750 million par value) 903 — Adient - 3.5% due in 2024 (EUR 1,000 million par value) 1,119 — Adient - 4.875% due in 2026 ($900 million par value) 900 — TSarl - Term Loan A - LIBOR plus 1.50% due in 2020 4,000 — Adient - Term Loan A - LIBOR plus 1.005% due in 2021 1,500 — Capital lease obligations 24 48 Other foreign-denominated debt Euro 61 529 Japanese Yen 367 308 Other 39 57 Gross long-term debt 15,234 6,558 Less: current portion 628 806 Less: debt issuance costs 74 32 Less: current portion - liabilities held for sale 38 7 Less: long-term debt - noncurrent liabilities held for sale 3,441 346 Net long-term debt $ 11,053 $ 5,367 At September 30, 2016 , the Company’s other foreign-denominated long-term debt was at fixed and floating rates with a weighted-average interest rate of 1.3% . At September 30, 2015 , the Company’s other foreign-denominated long-term debt was at fixed and floating rates with a weighted-average interest rate of 1.1% . The installments of long-term debt maturing in subsequent fiscal years are: 2017 - $666 million ; 2018 - $454 million ; 2019 - $94 million ; 2020 - $5,056 million ; 2021 - $1,642 million ; 2022 and thereafter - $7,322 million . The Company’s long-term debt includes various financial covenants, none of which are expected to restrict future operations. Total interest paid on both short and long-term debt for the fiscal years ended September 30, 2016 , 2015 and 2014 was $319 million , $373 million and $314 million , respectively. The Company uses financial instruments to manage its interest rate exposure (see Note 10, "Derivative Instruments and Hedging Activities," and Note 11, "Fair Value Measurements," of the notes to consolidated financial statements). These instruments affect the weighted average interest rate of the Company’s debt and interest expense. Financing Arrangements Financing in connection with Tyco Merger Simultaneously with the closing of the Tyco Merger on September 2, 2016, TSarl borrowed $4,000 million under the Term Loan Credit Agreement dated as of March 10, 2016 with a syndicate of lenders, providing for a three and a half year senior unsecured term loan facility to finance the cash consideration for, and fees, expenses and costs incurred in connection with the Merger. Financing in connection with Adient spin-off In August 2016, Adient Global Holdings, Ltd. ("AGH"), a wholly-owned subsidiary of the Company, issued a one billion euro, 3.5% fixed rate, 8 -year senior unsecured note scheduled to mature in August 2024. AGH also issued a $900 million , 4.875% , 10 -year senior unsecured note scheduled to mature in August 2026. The proceeds from the notes were deposited into escrow and are expected to be released in connection with the spin-off. The notes have not been, and are not expected to be, guaranteed by the Company or any of its subsidiaries that will not be subsidiaries of Adient following the spin-off. Approximately $1,500 million of the proceeds will be distributed to the Company in connection with the spin-off and approximately $500 million of the proceeds will be used for Adient's general corporate purposes. In July 2016, AGH entered into a 5 -year, $1,500 million Term A loan facility and a 5 -year, $1,500 million revolving credit facility scheduled to mature in July 2021. The term loan was fully drawn in August 2016. As of September 30, 2016, there were no draws on the facility. Upon completion of the spin-off of Adient, AGH will become a wholly-owned subsidiary of Adient. On the date of the spin-off, Adient and certain of its wholly-owned subsidiaries will guarantee the debt, and the guarantees of the Company will automatically be released. The Company used the proceeds of the term loan to early repay its four tranches of euro-denominated floating rate credit facilities, totaling 390 million euro, that were outstanding as of September 30, 2015; three term loans of $500 million , $200 million and $125 million that were entered into during fiscal 2016, plus accrued interest, and a $90 million outstanding credit facility. The remainder of the proceeds were used for general corporate purposes . Other financing arrangements At September 30, 2016 , the Company had committed bilateral U.S. dollar denominated revolving credit facilities totaling $135 million , which are scheduled to expire in fiscal 2017. There were no draws on any of these revolving facilities in fiscal 2016. In January 2016, the Company retired $800 million in principal amount, plus accrued interest, of its 5.5% fixed rate notes that matured in January 2016. In September 2015, the Company retired, at maturity, $500 million , $150 million and $100 million floating rate term loans plus accrued interest that were entered into during fiscal 2015. In June 2015, the Company entered into a five -year, 37 billion yen floating rate syndicated term loan scheduled to mature in June 2020. Proceeds from the syndicated term loan were used for general corporate purposes. In May 2015, the Company made a partial repayment of 32 million euro in principal amount, plus accrued interest, of its 70 million euro floating rate credit facility scheduled to mature in November 2017. The remaining outstanding portion as of September 30, 2015 was repaid during fiscal 2016. In March 2015, the Company retired $125 million in principal amount, plus accrued interest, of its 7.7% fixed rate notes that matured in March 2015. In January 2015, the Company entered into a one -year, $90 million , committed revolving credit facility scheduled to mature in January 2016. The Company drew on the full credit facility during the quarter ended March 31, 2015. Proceeds from the revolving credit facility were used for general corporate purposes. The $90 million was repaid in September 2015. Net Financing Charges The Company's net financing charges line item in the consolidated statements of income for the years ended September 30, 2016 , 2015 and 2014 contained the following components (in millions): Year Ended September 30, 2016 2015 2014 Interest expense, net of capitalized interest costs $ 293 $ 275 $ 238 Banking fees and bond cost amortization 30 21 15 Interest income (12 ) (7 ) (8 ) Net foreign exchange results for financing activities (22 ) (15 ) (19 ) Net financing charges $ 289 $ 274 $ 226

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities (Notes)	12 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES	DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES The Company selectively uses derivative instruments to reduce market risk associated with changes in foreign currency, commodities, stock-based compensation liabilities and interest rates. Under Company policy, the use of derivatives is restricted to those intended for hedging purposes; the use of any derivative instrument for speculative purposes is strictly prohibited. A description of each type of derivative utilized by the Company to manage risk is included in the following paragraphs. In addition, refer to Note 11, "Fair Value Measurements," of the notes to consolidated financial statements for information related to the fair value measurements and valuation methods utilized by the Company for each derivative type. Cash Flow Hedges The Company has global operations and participates in the foreign exchange markets to minimize its risk of loss from fluctuations in foreign currency exchange rates. The Company selectively hedges anticipated transactions that are subject to foreign exchange rate risk primarily using foreign currency exchange hedge contracts. The Company hedges 70% to 90% of the nominal amount of each of its known foreign exchange transactional exposures. As cash flow hedges under ASC 815, "Derivatives and Hedging," the effective portion of the hedge gains or losses due to changes in fair value are initially recorded as a component of AOCI and are subsequently reclassified into earnings when the hedged transactions occur and affect earnings. Any ineffective portion of the hedge is reflected in the consolidated statements of income. These contracts were highly effective in hedging the variability in future cash flows attributable to changes in currency exchange rates at September 30, 2016 and 2015 . The Company selectively hedges anticipated transactions that are subject to commodity price risk, primarily using commodity hedge contracts, to minimize overall price risk associated with the Company’s purchases of lead, copper, tin and aluminum in cases where commodity price risk cannot be naturally offset or hedged through supply base fixed price contracts. Commodity risks are systematically managed pursuant to policy guidelines. As cash flow hedges, the effective portion of the hedge gains or losses due to changes in fair value are initially recorded as a component of AOCI and are subsequently reclassified into earnings when the hedged transactions, typically sales, occur and affect earnings. Any ineffective portion of the hedge is reflected in the consolidated statements of income. The maturities of the commodity hedge contracts coincide with the expected purchase of the commodities. These contracts were highly effective in hedging the variability in future cash flows attributable to changes in commodity prices at September 30, 2016 and 2015 . The Company had the following outstanding contracts to hedge forecasted commodity purchases: Volume Outstanding as of Commodity Units September 30, 2016 September 30, 2015 Copper Pounds 5,849,000 14,648,000 Lead Metric Tons 5,185 6,785 Aluminum Metric Tons 2,620 5,700 Tin Metric Tons 185 2,080 In September 2005, the Company entered into three forward treasury lock agreements to reduce the market risk associated with changes in interest rates associated with the Company’s anticipated fixed-rate note issuance to finance the acquisition of York International Corp. (cash flow hedge). The three forward treasury lock agreements, which had a combined notional amount of $1.3 billion , fixed a portion of the future interest cost for 5-year, 10-year and 30-year notes. The fair value of each treasury lock agreement, or the difference between the treasury lock reference rate and the fixed rate at time of note issuance, is amortized to interest expense over the life of the respective note issuance. In January 2006, in connection with the Company’s debt refinancing, the three forward treasury lock agreements were terminated. Fair Value Hedges The Company selectively uses interest rate swaps to reduce market risk associated with changes in interest rates for its fixed-rate bonds. Changes in the fair value of the swap and hedged portion of the debt are recorded in the consolidated statements of income. In the fourth quarter of fiscal 2013, the Company entered into four fixed to floating interest rate swaps totaling $800 million to hedge the coupon of its 5.5% notes that matured in January 2016. In the third quarter of fiscal 2014, the Company entered into four fixed to floating interest rate swaps totaling $400 million to hedge the coupon of its 2.6% notes maturing December 2016, three fixed to floating interest rate swaps totaling $300 million to hedge the coupon of its 1.4% notes maturing November 2017 and one fixed to floating interest rate swap totaling $150 million to hedge the coupon of its 7.125% notes maturing July 2017. There were eight and twelve interest rate swaps outstanding as of September 30, 2016 and 2015 , respectively. Net Investment Hedges The Company enters into cross-currency interest rate swaps and foreign currency denominated debt obligations to selectively hedge portions of its net investment in non-U.S. subsidiaries. The currency effects of the cross-currency interest rate swaps and debt obligations are reflected in the AOCI account within shareholders’ equity attributable to Johnson Controls ordinary shareholders where they offset gains and losses recorded on the Company’s net investm ents globally. At September 30, 2016 , the Company had 37 billion yen of foreign denominated debt designated as net investment hedge in the Company's net investment in Japan and a one billion euro and 500 million euro bonds designated as net investment hedges in the Company's net investment in Europe. The Company had no cross-currency interest rate swaps outstanding at September 30, 2016. At September 30, 2015 , the Company had four cross-currency interest rate swaps outstanding totaling 20 billion yen. The Company did not have any foreign denominated debt outstanding designated as a net investment hedge at September 30, 2015 . Derivatives Not Designated as Hedging Instruments The Company selectively uses equity swaps to reduce market risk associated with certain of its stock-based compensation plans, such as its deferred compensation plans. These equity compensation liabilities increase as the Company’s stock price increases and decrease as the Company’s stock price decreases. In contrast, the value of the swap agreement moves in the opposite direction of these liabilities, allowing the Company to fix a portion of the liabilities at a stated amount. As of September 30, 2016 the Company had no equity swaps outstanding as a result of the Tyco Merger and proposed spin-off. As of September 30, 2015 , the Company had hedged approximately 4.0 million shares of its common stock. The Company also holds certain foreign currency forward contracts which do not qualify for hedge accounting treatment. The change in fair value of foreign currency exchange derivatives not designated as hedging instruments under ASC 815 are recorded in the consolidated statements of income. Fair Value of Derivative Instruments The following table presents the location and fair values of derivative instruments and hedging activities included in the Company’s consolidated statements of financial position (in millions): Derivatives and Hedging Activities Designated as Hedging Instruments under ASC 815 Derivatives and Hedging Activities Not Designated as Hedging Instruments under ASC 815 September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Other current assets Foreign currency exchange derivatives $ 41 $ 31 $ 49 $ 27 Commodity derivatives 4 — — — Interest rate swaps — 1 — — Assets held for sale Cross-currency interest rate swaps — 5 — — Other noncurrent assets Interest rate swaps 1 5 — — Equity swap — — — 164 Total assets $ 46 $ 42 $ 49 $ 191 Other current liabilities Foreign currency exchange derivatives $ 48 $ 37 $ 18 $ 26 Commodity derivatives — 7 — — Liabilities held for sale Foreign currency exchange derivatives — — 5 — Cross-currency interest rate swaps — 1 — — Current portion of long-term debt Fixed rate debt swapped to floating 551 801 — — Long-term debt Foreign currency denominated debt 938 — — — Fixed rate debt swapped to floating 301 855 — — Noncurrent liabilities held for sale Foreign currency denominated debt 1,119 — — — Total liabilities $ 2,957 $ 1,701 $ 23 $ 26 Counterparty Credit Risk The use of derivative financial instruments exposes the Company to counterparty credit risk. The Company has established policies and procedures to limit the potential for counterparty credit risk, including establishing limits for credit exposure and continually assessing the creditworthiness of counterparties. As a matter of practice, the Company deals with major banks worldwide having strong investment grade long-term credit ratings. To further reduce the risk of loss, the Company generally enters into International Swaps and Derivatives Association ("ISDA") master netting agreements with substantially all of its counterparties. The Company's derivative contracts do not contain any credit risk related contingent features and do not require collateral or other security to be furnished by the Company or the counterparties. The Company's exposure to credit risk associated with its derivative instruments is measured on an individual counterparty basis, as well as by groups of counterparties that share similar attributes. The Company does not anticipate any non-performance by any of its counterparties, and the concentration of risk with financial institutions does not present significant credit risk to the Company. The Company enters into ISDA master netting agreements with counterparties that permit the net settlement of amounts owed under the derivative contracts. The master netting agreements generally provide for net settlement of all outstanding contracts with a counterparty in the case of an event of default or a termination event. The Company has not elected to offset the fair value positions of the derivative contracts recorded in the consolidated statements of financial position. Collateral is generally not required of the Company or the counterparties under the master netting agreements. As of September 30, 2016 and September 30, 2015 , no cash collateral was received or pledged under the master netting agreements. The gross and net amounts of derivative assets and liabilities were as follows (in millions): Fair Value of Assets Fair Value of Liabilities September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Gross amount recognized $ 95 $ 233 $ 2,980 $ 1,727 Gross amount eligible for offsetting (21 ) (8 ) (21 ) (8 ) Net amount $ 74 $ 225 $ 2,959 $ 1,719 Derivatives Impact on the Statements of Income and Statements of Comprehensive Income The following table presents the effective portion of pre-tax gains (losses) recorded in other comprehensive income (loss) related to cash flow hedges for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Cash Flow Hedging Relationships Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives $ (18 ) $ (5 ) $ 1 Commodity derivatives 3 (19 ) (7 ) Total $ (15 ) $ (24 ) $ (6 ) The following tables presents the location and amount of the effective portion of pre-tax gains (losses) on cash flow hedges reclassified from AOCI into the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Cash Flow Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives Cost of sales $ 9 $ 25 $ 7 Foreign currency exchange derivatives Income (loss) from discontinued operations (30 ) (24 ) (9 ) Commodity derivatives Cost of sales (12 ) (11 ) 1 Forward treasury locks Net financing charges 1 1 1 Total $ (32 ) $ (9 ) $ — The following table presents the location and amount of pre-tax gains (losses) on fair value hedges recognized in the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Fair Value Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Interest rate swap Net financing charges $ (5 ) $ 7 $ 5 Fixed rate debt swapped to floating Net financing charges 5 (7 ) (5 ) Total $ — $ — $ — The following table presents the location and amount of pre-tax gains (losses) on derivatives not designated as hedging instruments recognized in the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives Not Designated as Hedging Instruments under ASC 815 Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives Cost of sales $ (20 ) $ 2 $ (2 ) Foreign currency exchange derivatives Net financing charges 21 (37 ) 30 Foreign currency exchange derivatives Income tax provision 4 — — Foreign currency exchange derivatives Income (loss) from discontinued operations (30 ) 20 (9 ) Equity swap Selling, general and administrative 14 (9 ) (1 ) Total $ (11 ) $ (24 ) $ 18 The effective portion of pre-tax gains (losses) recorded in foreign currency translation adjustment within other comprehensive income (loss) related to net investment hedges were $(82) million , $16 million and $24 million for the years ended September 30, 2016 , 2015 and 2014 , respectively. For the years ended September 30, 2016 , 2015 and 2014 , no gains or losses were reclassified from CTA into income for the Company’s outstanding net investment hedges, and no gains or losses were recognized in income for the ineffective portion of cash flow hedges.

Fair Value Measurements (Notes)

Fair Value Measurements (Notes)	12 Months Ended
	Sep. 30, 2016
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS ASC 820, "Fair Value Measurement," defines fair value as 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. ASC 820 also establishes a three-level fair value hierarchy that prioritizes information used in developing assumptions when pricing an asset or liability as follows: Level 1: Observable inputs such as quoted prices in active markets; Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and Level 3: Unobservable inputs where there is little or no market data, which requires the reporting entity to develop its own assumptions. ASC 820 requires the use of observable market data, when available, in making fair value measurements. When inputs used to measure fair value fall within different levels of the hierarchy, the level within which the fair value measurement is categorized is based on the lowest level input that is significant to the fair value measurement. Recurring Fair Value Measurements The following tables present the Company’s fair value hierarchy for those assets and liabilities measured at fair value as of September 30, 2016 and 2015 (in millions): Fair Value Measurements Using: Total as of September 30, 2016 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other current assets Foreign currency exchange derivatives $ 90 $ — $ 90 $ — Commodity derivatives 4 — 4 — Exchange traded funds (fixed income) 1 15 15 — — Other noncurrent assets Interest rate swaps 1 — 1 — Investments in marketable common stock 3 3 — — Deferred compensation plan assets 81 81 — — Exchange traded funds (fixed income) 1 163 163 — — Exchange traded funds (equity) 1 86 86 — — Total assets $ 443 $ 348 $ 95 $ — Other current liabilities Foreign currency exchange derivatives $ 66 $ — $ 66 $ — Liabilities held for sale Foreign currency exchange derivatives 5 — 5 — Current portion of long-term debt Fixed rate debt swapped to floating 551 — 551 — Long-term debt Foreign currency denominated debt 938 938 — — Fixed rate debt swapped to floating 301 — 301 — Noncurrent liabilities held for sale Foreign currency denominated debt 1,119 1,119 — — Total liabilities $ 2,980 $ 2,057 $ 923 $ — 1 Classified as restricted investments for payment of asbestos liabilities. See Note 23, "Commitments and Contingencies" of the notes to consolidated financial statements for further details. Fair Value Measurements Using: Total as of September 30, 2015 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other current assets Foreign currency exchange derivatives $ 58 $ — $ 58 $ — Interest rate swaps 1 — 1 — Assets held for sale Cross-currency interest rate swaps 5 — 5 — Other noncurrent assets Interest rate swaps 5 — 5 — Investments in marketable common stock 4 4 — — Equity swap 164 164 — — Total assets $ 237 $ 168 $ 69 $ — Other current liabilities Foreign currency exchange derivatives $ 63 $ — $ 63 $ — Commodity derivatives 7 — 7 — Liabilities held for sale Cross-currency interest rate swaps 1 — 1 — Current portion of long-term debt Fixed rate debt swapped to floating 801 — 801 — Long-term debt Fixed rate debt swapped to floating 855 — 855 — Total liabilities $ 1,727 $ — $ 1,727 $ — Valuation Methods Foreign currency exchange derivatives : The foreign currency exchange derivatives are valued under a market approach using publicized spot and forward prices. Commodity derivatives : The commodity derivatives are valued under a market approach using publicized prices, where available, or dealer quotes. Interest rate swaps and related debt : The interest rate swaps and related debt balances are valued under a market approach using publicized swap curves. Equity swaps : The equity swaps are valued under a market approach as the fair value of the swaps is equal to the Company’s stock price at the reporting period date. Cross-currency interest rate swaps : The cross-currency interest rate swaps are valued using observable market data. Deferred compensation plan assets : Assets held in the deferred compensation plans will be used to pay benefits under certain of the Company's non-qualified deferred compensation plans. The investments primarily consist of mutual funds which are publicly traded on stock exchanges and are valued using a market approach based on the quoted market prices. Investments in marketable common stock and exchange traded funds : Investments in marketable common stock and exchange traded funds are valued using a market approach based on the quoted market prices, where available, or broker/dealer quotes of identical or comparable instruments. There was an unrealized loss recorded on these investments of $1 million for the year ended September 30, 2016 within AOCI in the consolidated statements of financial position. There were no unrealized gains or losses recorded on these investments for the year ended September 30, 2015. The Company did not hold the exchange traded funds during the year ended September 30, 2015. Foreign currency denominated debt: The Company had entered into foreign currency denominated debt obligations to selectively hedge portions of its net investment in non-U.S. subsidiaries. The currency effects of debt obligations are reflected in the AOCI account within shareholders’ equity attributable to Johnson Controls ordinary shareholders where they offset gains and losses recorded on the Company’s net investm ents globally. The foreign denominated debt obligation is remeasured to current exchange rates under a market approach using publicized spot prices. At September 30, 2016 , the Company had 37 billion yen of foreign denominated debt designated as net investment hedge in the Company's net investment in Japan and one billion euro and 500 million euro bonds designated as net investment hedges in the Company's net investment in Europe. The Company did not have any foreign denominated debt outstanding designated as a net investment hedge at September 30, 2015 . The fair values of cash and cash equivalents, accounts receivable, short-term debt and accounts payable approximate their carrying values. The fair value of long-term debt, which was $15.7 billion and $6.7 billion at September 30, 2016 and 2015 , respectively, was determined primarily using market quotes classified as Level 1 inputs within the ASC 820 fair value hierarchy.

Stock-based Compensation (Notes

Stock-based Compensation (Notes)	12 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION On September 2, 2016, the shareholders of the Company approved the Johnson Controls International plc 2012 Share and Incentive Plan (the "Plan"). The original effective date of this Plan was October 1, 2012. The Plan was amended and restated as of November 17, 2014 and was amended and restated again in connection with the Merger that was consummated on September 2, 2016 (the "Amendment Effective Date"). The amendment and restatement is intended to reflect the assumption into this Plan of the remaining share reserves under the Johnson Controls, Inc. 2012 Omnibus Incentive Plan and the Johnson Controls, Inc. 2003 Stock Plan for Outside Directors (the "Legacy Johnson Controls Plans") as of the Amendment Effective Date. Following the Amendment Effective Date, no further awards may be made under the Legacy Johnson Controls Plans. The types of awards authorized by the Plan comprise of stock options, stock appreciation rights, performance shares, performance units and other stock-based awards. The Compensation Committee of the Company's Board of Directors will determine the types of awards to be granted to individual participants and the terms and conditions of the awards. The Plan provides that 76 million shares of the Company's common stock are reserved for issuance under the 2012 Plan, and 46 million shares remain available for issuance at September 30, 2016 . Pursuant to the Merger Agreement, outstanding stock options held by Tyco employees on September 2, 2016 (the "Merger Date") were converted into options to acquire the Company's shares using a 0.955 -for-one share consolidation ratio in a manner designed to preserve the intrinsic value of such awards. In addition, pursuant to the Merger Agreement, nonvested restricted stock held by Tyco employees on the Merger Date were converted into nonvested restricted stock of the Company using the 0.955-for-one share consolidation ratio in a manner designed to preserve the intrinsic value of such awards. Outstanding performance share awards held by Tyco employees on the Merger Date were converted to nonvested restricted stock of the Company at the target performance level, and adjusted to reflect the 0.955-for-one consolidation ratio. Except for the conversion of stock options, nonvested restricted stock and performance share awards discussed herein, the material terms of the awards remained unchanged. The modifications made to the awards upon the Merger Date constituted modifications under the authoritative guidance for accounting for stock compensation. This guidance requires the Company to revalue the awards upon the Merger close and allocate the revised fair value between purchase consideration and continuing expense based on the ratio of service performed through the Merger Date over the total service period of the awards. The revised fair value allocated to post-merger services resulted in incremental expense which is recognized over the remaining service period of the awards. The portion of Tyco awards earned as of the Merger Date included as purchase consideration was $224 million . The total value of Tyco awards not earned as of the Merger Date was $101 million , which will be expensed over the remaining future vesting period. Of this amount, $10 million was recorded in selling, general and administrative expenses and $23 million was recorded in restructuring and impairment costs in the consolidated statement of income for the fiscal year ended September 30, 2016 as a result of change-in-control provisions for current and former employees. Refer to Note 2, “Merger Transaction,” of the notes to consolidated financial statements for further information regarding the Merger. Pursuant to the Merger Agreement, outstanding stock options held by JCI Inc. employees on the Merger Date were converted one-for-one into options to acquire the Company's shares in a manner designed to preserve the intrinsic value of such awards. In addition, pursuant to the Merger Agreement, nonvested restricted stock held by JCI Inc. employees on the Merger Date was converted one-for-one into nonvested restricted stock of the Company in a manner designed to preserve the intrinsic value of such awards. Outstanding performance share awards held by JCI Inc. employees on the Merger Date were converted to nonvested restricted stock of the Company based on certain performance factors. Except for the conversion of stock options, nonvested restricted stock and performance share awards discussed herein, the material terms of the awards remained unchanged, and no incremental fair value resulted from the conversion. References to the Company’s stock throughout Note 12 refer to stock of JCI Inc. prior to the Merger Date and to stock of the Company subsequent to the Merger Date. The Company has four share-based compensation plans, which are described below. For the fiscal year ended September 30, 2016, compensation cost charged against income for continuing operations, excluding the offsetting impact of outstanding equity swaps, for those plans was approximately $160 million , of which $121 million was recorded in selling, general and administrative expenses and $39 million was recorded in restructuring and impairment costs. For the fiscal years ended September 30, 2015 and 2014, compensation cost charged against income for continuing operations, excluding the offsetting impact of outstanding equity swaps, for those plans was approximately $69 million and $67 million , respectively, all of which was recorded in selling, general and administrative expenses. The income tax benefit recognized for continuing operations in the consolidated statements of income for share-based compensation arrangements was approximately $56 million , $28 million and $26 million for the fiscal years ended September 30, 2016 , 2015 and 2014 , respectively. The Company applies a non-substantive vesting period approach whereby expense is accelerated for those employees that receive awards and are eligible to retire prior to the award vesting. Stock Options Stock options are granted with an exercise price equal to the market price of the Company’s stock at the date of grant. Stock option awards typically vest between two and three years after the grant date and expire ten years from the grant date. The fair value of each option is estimated on the date of grant using a Black-Scholes option valuation model that uses the assumptions noted in the following table. Expected volatilities are based on the historical volatility of the Company’s stock and other factors. The Company uses historical data to estimate option exercises and employee terminations within the valuation model. The expected term of options represents the period of time that options granted are expected to be outstanding. The risk-free rate for periods during the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Year Ended September 30, 2016 2015 2014 Expected life of option (years) 6.4 6.6 6.7 Risk-free interest rate 1.64% - 1.70% 1.61% - 1.93% 1.92% Expected volatility of the Company’s stock 36.00% 36.00% 36.00% Expected dividend yield on the Company’s stock 2.11% 2.02% 2.17% A summary of stock option activity at September 30, 2016 , and changes for the year then ended, is presented below: Weighted Average Option Price Shares Subject to Option Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in millions) Outstanding, September 30, 2015 $ 31.17 13,039,240 Granted 43.83 961,705 Acquired Tyco awards 31.37 10,895,381 Exercised 27.93 (2,393,703 ) Forfeited or expired 42.90 (170,390 ) Outstanding, September 30, 2016 $ 32.07 22,332,233 5.3 $ 327 Exercisable, September 30, 2016 $ 28.30 15,745,714 4.4 $ 288 The weighted-average grant-date fair value of options granted during the fiscal years ended September 30, 2016 , 2015 and 2014 was $13.14 , $15.51 and $14.70 , respectively. The total intrinsic value of options exercised during the fiscal years ended September 30, 2016 , 2015 and 2014 was approximately $39 million , $227 million and $135 million , respectively. In conjunction with the exercise of stock options granted, the Company received cash payments for the fiscal years ended September 30, 2016 , 2015 and 2014 of approximately $70 million , $275 million and $186 million , respectively. The Company has elected to utilize the alternative transition method for calculating the tax effects of stock-based compensation. The alternative transition method includes computational guidance to establish the beginning balance of the additional paid-in capital pool ("APIC Pool") related to the tax effects of employee stock-based compensation, and a simplified method to determine the subsequent impact on the APIC Pool for employee stock-based compensation awards that are vested and outstanding upon adoption of ASC 718, "Compensation - Stock Compensation." The tax benefit from the exercise of stock options, which is recorded in capital in excess of par value, was $11 million , $59 million and $34 million for the fiscal years ended September 30, 2016 , 2015 and 2014 , respectively. The Company does not settle stock options granted under share-based payment arrangements for cash. At September 30, 2016 , the Company had approximately $25 million of total unrecognized compensation cost related to nonvested stock options granted for continuing operations. That cost is expected to be recognized over a weighted-average period of 1.2 years. Stock Appreciation Rights (SARs) SARs vest under the same terms and conditions as stock option awards; however, they are settled in cash for the difference between the market price on the date of exercise and the exercise price. As a result, SARs are recorded in the Company’s consolidated statements of financial position as a liability until the date of exercise. The fair value of each SAR award is estimated using a similar method described for stock options. The fair value of each SAR award is recalculated at the end of each reporting period and the liability and expense are adjusted based on the new fair value. The assumptions used to determine the fair value of the SAR awards at September 30, 2016 were as follows: Expected life of SAR (years) 0.5 - 4.2 Risk-free interest rate 0.45% - 1.04% Expected volatility of the Company’s stock 36.00% Expected dividend yield on the Company’s stock 2.11% A summary of SAR activity at September 30, 2016 , and changes for the year then ended, is presented below: Weighted Average SAR Price Shares Subject to SAR Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in millions) Outstanding, September 30, 2015 $ 29.53 1,740,100 Granted 43.86 54,749 Exercised 27.41 (494,480 ) Forfeited or expired 36.33 (99,204 ) Outstanding, September 30, 2016 $ 30.49 1,201,165 4.6 $ 19 Exercisable, September 30, 2016 $ 29.23 1,114,543 4.3 $ 19 In conjunction with the exercise of SARs granted, the Company made payments of $8 million , $19 million and $21 million during the fiscal years ended September 30, 2016 , 2015 and 2014 , respectively. Restricted (Nonvested) Stock The Plan provides for the award of restricted stock or restricted stock units to certain employees. These awards are typically share settled unless the employee is a non-U.S. employee or elects to defer settlement until retirement at which point the award would be settled in cash. Restricted awards typically vest after three years from the grant date. The Plan allows for different vesting terms on specific grants with approval by the Board of Directors. A summary of the status of the Company’s nonvested restricted stock awards at September 30, 2016 , and changes for the fiscal year then ended, is presented below: Weighted Average Price Shares/Units Subject to Restriction Nonvested, September 30, 2015 $ 45.75 2,370,155 Granted 45.49 4,052,020 Acquired Tyco awards 47.74 2,916,471 Converted performance share awards * 49.20 1,108,036 Vested 34.45 (527,017 ) Forfeited 45.83 (353,621 ) Nonvested, September 30, 2016 $ 47.27 9,566,044 * As of the Amendment Effective Date, performance share awards were converted to nonvested restricted stock based on certain performance factors. At September 30, 2016 , the Company had approximately $163 million of total unrecognized compensation cost related to nonvested restricted stock arrangements granted for continuing operations. That cost is expected to be recognized over a weighted-average period of 2.0 years. Performance Share Awards The Plan permits the grant of performance-based share unit ("PSU") awards. The number of PSUs granted is equal to the PSU award value divided by the closing price of the Company's common stock at the grant date. The PSUs are generally contingent on the achievement of pre-determined performance goals over a three-year performance period as well as on the award holder's continuous employment until the vesting date. Each PSU that is earned will be settled with a share of the Company's common stock following the completion of the performance period, unless the award holder elected to defer a portion or all of the award until retirement which would then be settled in cash. A summary of the status of the Company’s nonvested PSUs at September 30, 2016 , and changes for the fiscal year then ended, is presented below: Weighted Average Price Shares/Units Subject to PSU Nonvested, September 30, 2015 $ 42.33 924,388 Vested 30.73 (344,318 ) Forfeited 49.73 (21,305 ) Nonvested, September 02, 2016 $ 49.20 558,765 Conversion to nonvested restricted stock * 49.20 (558,765 ) Nonvested, September 30, 2016 $ — — * As of the Amendment Effective Date, PSUs were converted to nonvested restricted stock.

Earnings Per Share (Notes)

Earnings Per Share (Notes)	12 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
EARNINGS PER SHARE	EARNINGS PER SHARE The Company presents both basic and diluted EPS amounts. Basic EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of ordinary shares outstanding during the reporting period. Diluted EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of ordinary shares and ordinary equivalent shares outstanding during the reporting period that are calculated using the treasury stock method for stock options, unvested restricted stock and unvested performance share awards. The treasury stock method assumes that the Company uses the proceeds from the exercise of stock option awards to repurchase ordinary shares at the average market price during the period. The assumed proceeds under the treasury stock method include the purchase price that the grantee will pay in the future, compensation cost for future service that the Company has not yet recognized and any windfall tax benefits that would be credited to capital in excess of par value when the award generates a tax deduction. If there would be a shortfall resulting in a charge to capital in excess of par value, such an amount would be a reduction of the proceeds. For unvested restricted stock and unvested performance share awards, assumed proceeds under the treasury stock method would include unamortized compensation cost and windfall tax benefits or shortfalls. The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share (in millions): Year Ended September 30, 2016 2015 2014 Income (Loss) Available to Ordinary Shareholders Income from continuing operations $ 732 $ 814 $ 906 Income (loss) from discontinued operations (1,600 ) 749 309 Basic and diluted income (loss) available to shareholders $ (868 ) $ 1,563 $ 1,215 Weighted Average Shares Outstanding Basic weighted average shares outstanding 667.4 655.2 666.9 Effect of dilutive securities: Stock options, unvested restricted stock and unvested performance share awards 5.2 6.3 7.9 Diluted weighted average shares outstanding 672.6 661.5 674.8 Antidilutive Securities Options to purchase shares — 0.4 0.1 During the three months ended September 30, 2016 and 2015 , the Company declared a dividend of $0.29 and $0.26 , respectively, per share. During the twelve months ended September 30, 2016 and 2015 , the Company declared four quarterly dividends totaling $1.16 and $1.04 , respectively, per share.

Equity and Noncontrolling Inter

Equity and Noncontrolling Interests (Notes)	12 Months Ended
	Sep. 30, 2016
Stockholders' Equity Note [Abstract]
EQUITY AND NONCONTROLLING INTERESTS	EQUITY AND NONCONTROLLING INTERESTS Share Capital In September 2016, as a result of the Tyco Merger and further discussed within Note 2, "Merger Transaction," of the notes to consolidated financial statements, each outstanding share of common stock, par value $1.00 per share, of JCI Inc. common stock (other than shares held by JCI Inc., Tyco and certain of their subsidiaries) was converted into the right to receive either a cash consideration or a share consideration. The shares outstanding as of the merger date were calculated as follows (in millions, except share consolidation ratio and per share data): Pre-merger Tyco shares outstanding 427.2 Share consolidation ratio 0.955 Post-share consolidation Tyco shares 408.0 Johnson Controls Inc. shares outstanding 638.3 Cash contributed by Tyco used to purchase shares of Johnson Controls Inc. $ 3,864 Johnson Controls Inc. per share consideration $ 34.88 Reduction in shares due to cash consideration paid by Tyco (110.8 ) Adjusted Johnson Controls Inc. shares outstanding (1:1 exchange ratio) 527.5 Shares outstanding at September 2, 2016 935.5 Par value $ 9 Dividends The authority to declare and pay dividends is vested in the Board of Directors. The timing, declaration and payment of future dividends to holders of the Company's ordinary shares will be determined by the Company's Board of Directors and will depend upon many factors, including the Company's financial condition and results of operations, the capital requirements of the Company's businesses, industry practice and any other relevant factors. Under Irish law, dividends may only be paid (and share repurchases and redemptions must generally be funded) out of “distributable reserves.” The creation of distributable reserves was accomplished by way of a capital reduction, which the Irish High Court approved on December 18, 2014 and as acquired in conjunction with the Tyco Merger. Share Repurchase Program Following the Tyco Merger, the Company adopted, subject to the ongoing existence of sufficient distributable reserves, the existing Tyco International plc $1 billion share repurchase program in September 2016. The share repurchase program does not have an expiration date and may be amended or terminated by the Board of Directors at any time without prior notice. There were no shares repurchased between the closing of the Merger and September 30, 2016. Prior to the Merger, the Company repurchased approximately $501 million of its shares under JCI Inc.'s $3.65 billion share repurchase program during fiscal year 2016 . During fiscal years 2015 and 2014 , the Company repurchased approximately $1.4 billion and $1.2 billion of its common stock, respectively. Other comprehensive income includes activity relating to discontinued operations. The following schedules present changes in consolidated equity attributable to Johnson Controls and noncontrolling interests (in millions, net of tax): Equity Attributable to Johnson Controls International plc Equity Attributable to Noncontrolling Interests Total Equity At September 30, 2013 $ 12,273 $ 260 $ 12,533 Total comprehensive income: Net income 1,215 90 1,305 Foreign currency translation adjustments (640 ) (2 ) (642 ) Realized and unrealized losses on derivatives (3 ) — (3 ) Realized and unrealized losses on marketable securities (7 ) — (7 ) Pension and postretirement plans (5 ) — (5 ) Other comprehensive loss (655 ) (2 ) (657 ) Comprehensive income 560 88 648 Other changes in equity: Cash dividends - common stock ($0.88 per share) (586 ) — (586 ) Dividends attributable to noncontrolling interests — (59 ) (59 ) Repurchases of common stock (1,249 ) — (1,249 ) Change in noncontrolling interest share — (32 ) (32 ) Other, including options exercised 272 (6 ) 266 At September 30, 2014 11,270 251 11,521 Total comprehensive income: Net income 1,563 65 1,628 Foreign currency translation adjustments (799 ) (3 ) (802 ) Realized and unrealized losses on derivatives (11 ) — (11 ) Pension and postretirement plans (10 ) — (10 ) Other comprehensive loss (820 ) (3 ) (823 ) Comprehensive income 743 62 805 Other changes in equity: Cash dividends - common stock ($1.04 per share) (681 ) — (681 ) Dividends attributable to noncontrolling interests — (57 ) (57 ) Repurchases of common stock (1,362 ) — (1,362 ) Change in noncontrolling interest share — (93 ) (93 ) Other, including options exercised 365 — 365 At September 30, 2015 10,335 163 10,498 Total comprehensive income (loss): Net income (loss) (868 ) 168 (700 ) Foreign currency translation adjustments (105 ) 9 (96 ) Realized and unrealized gains (losses) on derivatives 11 (1 ) 10 Unrealized losses on marketable securities (1 ) — (1 ) Pension and postretirement plans (1 ) — (1 ) Other comprehensive income (loss) (96 ) 8 (88 ) Comprehensive income (loss) (964 ) 176 (788 ) Other changes in equity: Result of contribution of Johnson Controls, Inc. to Johnson Controls International plc 15,808 — 15,808 Cash dividends - common stock ($1.16 per share) (752 ) — (752 ) Dividends attributable to noncontrolling interests — (93 ) (93 ) Repurchases of common stock (501 ) — (501 ) Change in noncontrolling interest share — 726 726 Other, including options exercised 192 — 192 At September 30, 2016 $ 24,118 $ 972 $ 25,090 The equity attributable to Johnson Controls International plc increased by $15.8 billion as a result of the Tyco Merger. The increase is primarily due to an increase to equity of $19.7 billion resulting from the total fair value of consideration transferred, partially offset by a decrease of $3.9 billion resulting from cash contributed by Tyco used to purchase shares of Johnson Controls Inc. As previously disclosed, on October 1, 2015, the Company formed a joint venture with Hitachi. In connection with the acquisition, the Company recorded equity attributable to noncontrolling interests of $691 million . Also, in connection with the Tyco Merger, the Company recorded equity attributable to noncontrolling interests of $34 million . The Company consolidates certain subsidiaries in which the noncontrolling interest party has within their control the right to require the Company to redeem all or a portion of its interest in the subsidiary. The redeemable noncontrolling interests are reported at their estimated redemption value. Any adjustment to the redemption value impacts retained earnings but does not impact net income. Redeemable noncontrolling interests which are redeemable only upon future events, the occurrence of which is not currently probable, are recorded at carrying value. The following schedules present changes in the redeemable noncontrolling interests (in millions): Year Ended September 30, 2016 Year Ended September 30, 2015 Year Ended September 30, 2014 Beginning balance, September 30 $ 212 $ 194 $ 157 Net income 48 51 38 Foreign currency translation adjustments 2 (23 ) — Realized and unrealized gains (losses) on derivatives (1 ) 1 — Dividends (27 ) (11 ) (7 ) Other — — 6 Ending balance, September 30 $ 234 $ 212 $ 194 The following schedules present changes in AOCI attributable to Johnson Controls (in millions, net of tax): Year Ended September 30, 2016 Year Ended September 30, 2015 Year Ended September 30, 2014 Foreign currency translation adjustments Balance at beginning of period $ (1,047 ) $ (248 ) $ 392 Aggregate adjustment for the period (net of tax effect of $(43), $(44) and $7) * (105 ) (799 ) (640 ) Balance at end of period (1,152 ) (1,047 ) (248 ) Realized and unrealized gains (losses) on derivatives Balance at beginning of period (7 ) 4 7 Current period changes in fair value (net of tax effect of $(5), $(7) and $(3)) (10 ) (17 ) (3 ) Reclassification to income (net of tax effect of $11, $3 and $0) ** 21 6 — Balance at end of period 4 (7 ) 4 Realize and unrealized gains (losses) on marketable securities Balance at beginning of period — — 7 Current period changes in fair value (net of tax effect of $0) (1 ) — (1 ) Reclassifications to income (net of tax effect of $0, $0 and $(2)) *** — — (6 ) Balance at end of period (1 ) — — Pension and postretirement plans Balance at beginning of period (3 ) 7 12 Reclassification to income (net of tax effect of $0, $(3) and $(3)) **** (1 ) (11 ) (4 ) Other changes (net of tax effect of $0) — 1 (1 ) Balance at end of period (4 ) (3 ) 7 Accumulated other comprehensive loss, end of period $ (1,153 ) $ (1,057 ) $ (237 ) * During fiscal 2015, ($19) million of cumulative CTA were recognized as part of the divestiture-related gain recognized within discontinued operations as a result of the divestiture of GWS. During fiscal 2014, $203 million of cumulative CTA were recognized as part of the divestiture-related losses recognized within discontinued operations as a result of the divestiture of the Automotive Experience Electronics business. ** Refer to Note 10, "Derivative Instruments and Hedging Activities," of the notes to consolidated financial statements for disclosure of the line items on the consolidated statements of income affected by reclassifications from AOCI into income related to derivatives. *** During fiscal 2014, the Company sold certain marketable common stock for approximately $25 million . As as result, the Company recorded $8 million of realized gains within selling, general and administrative expenses in the Automotive Experience Seating segment. **** Refer to Note 15, "Retirement Plans," of the notes to consolidated financial statements for disclosure of the components of the Company's net periodic benefit costs associated with its defined benefit pension and postretirement plans. For the year ended September 30, 2016, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses on the consolidated statements of income. For the year ended September 30, 2015 the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses and income (loss) from discontinued operations, net of tax on the consolidated statements of income. For the year ended September 30, 2014, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in cost of sales and income (loss) from discontinued operations, net of tax on the consolidated statements of income.

Retirement Plans (Notes)

Retirement Plans (Notes)	12 Months Ended
	Sep. 30, 2016
Compensation and Retirement Disclosure [Abstract]
RETIREMENT PLANS	RETIREMENT PLANS Pension Benefits The Company has non-contributory defined benefit pension plans covering certain U.S. and non-U.S. employees. The benefits provided are primarily based on years of service and average compensation or a monthly retirement benefit amount. Effective January 1, 2006, certain of the Company’s U.S. pension plans were amended to prohibit new participants from entering the plans. Effective September 30, 2009, active participants continued to accrue benefits under the amended plans until December 31, 2014. Funding for U.S. pension plans equals or exceeds the minimum requirements of the Employee Retirement Income Security Act of 1974. Funding for non-U.S. plans observes the local legal and regulatory limits. Also, the Company makes contributions to union-trusteed pension funds for construction and service personnel. For pension plans with accumulated benefit obligations ("ABO") that exceed plan assets, the projected benefit obligation ("PBO"), ABO and fair value of plan assets of those plans were $7,124 million , $6,966 million and $5,234 million , respectively, as of September 30, 2016 and $3,636 million , $3,581 million and $2,939 million , respectively, as of September 30, 2015 . In fiscal 2016 , total employer contributions to the defined benefit pension plans were $136 million , of which $34 million were voluntary contributions made by the Company. The Company expects to contribute approximately $326 million in cash to its defined benefit pension plans in fiscal 2017 including $247 million due to change-in-control provisions triggered by the Tyco Merger. Projected benefit payments from the plans for continuing and discontinued operations as of September 30, 2016 are estimated as follows (in millions): 2017 $ 569 2018 321 2019 332 2020 337 2021 344 2022-2026 1,879 Postretirement Benefits The Company provides certain health care and life insurance benefits for eligible retirees and their dependents primarily in the U.S., Canada and Brazil. Most non-U.S. employees are covered by government sponsored programs, and the cost to the Company is not significant. Eligibility for coverage is based on meeting certain years of service and retirement age qualifications. These benefits may be subject to deductibles, co-payment provisions and other limitations, and the Company has reserved the right to modify these benefits. Effective January 31, 1994, the Company modified certain salaried plans to place a limit on the Company’s cost of future annual retiree medical benefits at no more than 150% of the 1993 cost. The health care cost trend assumption does not have a significant effect on the amounts reported. In fiscal 2016 , total employer and employee contributions to the postretirement plans were $7 million . The Company expects to contribute approximately $4 million in cash to its postretirement plans in fiscal 2017 . Projected benefit payments from the plans for continuing and discontinued operations as of September 30, 2016 are estimated as follows (in millions): 2017 $ 21 2018 21 2019 21 2020 21 2021 20 2022-2026 86 In December 2003, the U.S. Congress enacted the Medicare Prescription Drug, Improvement and Modernization Act of 2003 ("Act") for employers sponsoring postretirement care plans that provide prescription drug benefits. The Act introduces a prescription drug benefit under Medicare as well as a federal subsidy to sponsors of retiree health care benefit plans providing a benefit that is at least actuarially equivalent to Medicare Part D.1. Under the Act, the Medicare subsidy amount is received directly by the plan sponsor and not the related plan. Further, the plan sponsor is not required to use the subsidy amount to fund postretirement benefits and may use the subsidy for any valid business purpose. Projected subsidy receipts are estimated to be approximately $2 million per year over the next ten years. Savings and Investment Plans The Company sponsors various defined contribution savings plans that allow employees to contribute a portion of their pre-tax and/or after-tax income in accordance with plan specified guidelines. Under specified conditions, the Company will contribute to certain savings plans based on the employees’ eligible pay and/or will match a percentage of the employee contributions up to certain limits. Matching contributions charged to expense for continuing and discontinued operations amounted to $128 million , $123 million and $132 million for the fiscal years ended 2016 , 2015 and 2014 , respectively. Multiemployer Benefit Plans The Company contributes to multiemployer benefit plans based on obligations arising from collective bargaining agreements related to certain of its hourly employees in the U.S. These plans provide retirement benefits to participants based on their service to contributing employers. The benefits are paid from assets held in trust for that purpose. The trustees typically are responsible for determining the level of benefits to be provided to participants as well as for such matters as the investment of the assets and the administration of the plans. The risks of participating in these multiemployer benefit plans are different from single-employer benefit plans in the following aspects: • Assets contributed to the multiemployer benefit plan by one employer may be used to provide benefits to employees of other participating employers. • If a participating employer stops contributing to the multiemployer benefit plan, the unfunded obligations of the plan may be borne by the remaining participating employers. • If the Company stops participating in some of its multiemployer benefit plans, the Company may be required to pay those plans an amount based on its allocable share of the underfunded status of the plan, referred to as a withdrawal liability. The Company participates in approximately 284 multiemployer benefit plans, primarily related to its Buildings business in the U.S., none of which are individually significant to the Company. The number of employees covered by the Company’s multiemployer benefit plans has remained consistent over the past three years, and there have been no significant changes that affect the comparability of fiscal 2016 , 2015 and 2014 contributions. The Company recognizes expense for the contractually-required contribution for each period. The Company contributed $46 million , $45 million and $44 million to multiemployer benefit plans in fiscal 2016 , 2015 and 2014 , respectively. Based on the most recent information available, the Company believes that the present value of actuarial accrued liabilities in certain of these multiemployer benefit plans may exceed the value of the assets held in trust to pay benefits. Currently, the Company is not aware of any significant multiemployer benefits plans for which it is probable or reasonably possible that the Company will be obligated to make up any shortfall in funds. Moreover, if the Company were to exit certain markets or otherwise cease making contributions to these funds, the Company could trigger a withdrawal liability. Currently, the Company is not aware of any significant multiemployer benefit plans for which it is probable or reasonably possible that the Company will withdraw from the plan. Any accrual for a shortfall or withdrawal liability will be recorded when it is probable that a liability exists and it can be reasonably estimated. Plan Assets The Company’s investment policies employ an approach whereby a mix of equities, fixed income and alternative investments are used to maximize the long-term return of plan assets for a prudent level of risk. The investment portfolio primarily contains a diversified blend of equity and fixed income investments. Equity investments are diversified across U.S. and non-U.S. stocks, as well as growth, value and small to large capitalizations. Fixed income investments include corporate and government issues, with short-, mid- and long-term maturities, with a focus on investment grade when purchased and a target duration close to that of the plan liability. Investment and market risks are measured and monitored on an ongoing basis through regular investment portfolio reviews, annual liability measurements and periodic asset/liability studies. The majority of the real estate component of the portfolio is invested in a diversified portfolio of high-quality, operating properties with cash yields greater than the targeted appreciation. Investments in other alternative asset classes, including hedge funds and commodities, diversify the expected investment returns relative to the equity and fixed income investments. As a result of our diversification strategies, there are no significant concentrations of risk within the portfolio of investments. The Company’s actual asset allocations are in line with target allocations. The Company rebalances asset allocations as appropriate, in order to stay within a range of allocation for each asset category. The expected return on plan assets is based on the Company’s expectation of the long-term average rate of return of the capital markets in which the plans invest. The average market returns are adjusted, where appropriate, for active asset management returns. The expected return reflects the investment policy target asset mix and considers the historical returns earned for each asset category. The Company’s plan assets at September 30, 2016 and 2015 , by asset category, are as follows (in millions): Fair Value Measurements Using: Asset Category Total as of September 30, 2016 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Pension Cash $ 38 $ 38 $ — $ — Equity Securities Large-Cap 692 499 193 — Small-Cap 267 252 15 — International - Developed 655 566 89 — Fixed Income Securities Government 345 280 65 — Corporate/Other 950 633 317 — Total Investments in the Fair Value Hierarchy 2,947 $ 2,268 $ 679 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 346 Total Plan Assets $ 3,293 Non-U.S. Pension Cash $ 90 $ 90 $ — $ — Equity Securities Large-Cap 317 152 165 — International - Developed 453 160 293 — International - Emerging 19 19 — — Fixed Income Securities Government 864 452 412 — Corporate/Other 561 385 176 — Hedge Fund 169 — 169 — Real Estate 11 11 — — Total Investments in the Fair Value Hierarchy 2,484 $ 1,269 $ 1,215 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 52 Total Plan Assets $ 2,536 Postretirement Cash $ 7 $ 7 $ — $ — Equity Securities Large-Cap 31 31 — — Small-Cap 10 10 — — International - Developed 23 23 — — International - Emerging 12 12 — — Fixed Income Securities Government 23 23 — — Corporate/Other 65 65 — — Commodities 12 12 — — Real Estate 13 13 — — Total Plan Assets $ 196 $ 196 $ — $ — Fair Value Measurements Using: Asset Category Total as of September 30, 2015 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Pension Cash $ 75 $ 75 $ — $ — Equity Securities Large-Cap 500 500 — — Small-Cap 235 235 — — International - Developed 472 472 — — Fixed Income Securities Government 248 217 31 — Corporate/Other 753 615 138 — Total Investments in the Fair Value Hierarchy 2,283 $ 2,114 $ 169 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 323 Total Plan Assets $ 2,606 Non-U.S. Pension Cash $ 98 $ 98 $ — $ — Equity Securities Large-Cap 68 68 — — International - Developed 104 104 — — International - Emerging 16 16 — — Fixed Income Securities Government 441 319 122 — Corporate/Other 220 192 28 — Hedge Fund 172 — 172 — Real Estate 7 7 — — Total Investments in the Fair Value Hierarchy 1,126 $ 804 $ 322 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 51 Total Plan Assets $ 1,177 Postretirement Cash $ 10 $ 10 $ — $ — Equity Securities Large-Cap 30 30 — — Small-Cap 10 10 — — International - Developed 22 22 — — International - Emerging 10 10 — — Fixed Income Securities Government 22 22 — — Corporate/Other 67 67 — — Commodities 12 12 — — Real Estate 11 11 — — Total Plan Assets $ 194 $ 194 $ — $ — * The fair value of certain investments in real estate do not have a readily determinable fair value and requires the fund managers to independently arrive at fair value by calculating net asset value ("NAV") per share. In order to calculate NAV per share, the fund managers value the real estate investments using any one, or a combination of, the following methods: independent third party appraisals, discounted cash flow analysis of net cash flows projected to be generated by the investment and recent sales of comparable investments. Assumptions used to revalue the properties are updated every quarter. Due to the fact that the fund managers calculate NAV per share, the Company utilizes a practical expedient for measuring the fair value of its real-estate investments, as provided for under ASC 820, "Fair Value Measurement." In applying the practical expedient, the Company is not required to further adjust the NAV provided by the fund manager in order to determine the fair value of its investment as the NAV per share is calculated in a manner consistent with the measurement principles of ASC 946, "Financial Services - Investment Companies," and as of the Company's measurement date. The Company believes this is an appropriate methodology to obtain the fair value of these assets. For the component of the real estate portfolio under development, the investments are carried at cost until they are completed and valued by a third party appraiser. In accordance with ASU No. 2015-07, "Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)," investments for which fair value is measured using the net asset value per share practical expedient should be disclosed separate from the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of total plan assets to the amounts presented in the notes to the consolidated financial statements. The following is a description of the valuation methodologies used for assets measured at fair value. Cash: The fair value of cash is valued at cost. Equity Securities: The fair value of equity securities is determined by direct quoted market prices. The underlying holdings are direct quoted market prices on regulated financial exchanges. Certain equity securities are held within commingled funds which are valued at the unitized NAV or percentage of the net asset value as determined by the custodian of the fund. These values are based on the fair value of the underlying net assets owned by the fund. Fixed Income Securities: The fair value of fixed income securities is determined by direct or indirect quoted market prices. If indirect quoted market prices are utilized, the value of assets held in separate accounts is not published, but the investment managers report daily the underlying holdings. The underlying holdings are direct quoted market prices on regulated financial exchanges. Commodities: The fair value of the commodities is determined by quoted market prices of the underlying holdings on regulated financial exchanges. Hedge Funds: The fair value of hedge funds is accounted for by the custodian. The custodian obtains valuations from underlying managers based on market quotes for the most liquid assets and alternative methods for assets that do not have sufficient trading activity to derive prices. The Company and custodian review the methods used by the underlying managers to value the assets. The Company believes this is an appropriate methodology to obtain the fair value of these assets. Real Estate: The fair value of Real Estate Investment Trusts ("REITs") is recorded as Level 1 as these securities are traded on an open exchange. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The following sets forth a summary of changes in the fair value of assets measured using significant unobservable inputs (Level 3) (in millions): Hedge Funds U.S. Pension Asset value as of September 30, 2014 $ 4 Additions net of redemptions (3 ) Realized gain (loss) (1 ) Unrealized gain — Asset value as of September 30, 2015 $ — There were no Level 3 assets as of September 30, 2016 or 2015 or any Level 3 asset activity during fiscal 2016. Funded Status The table that follows contains the ABO and reconciliations of the changes in the PBO, the changes in plan assets and the funded status (in millions): Pension Benefits Postretirement Benefits U.S. Plans Non-U.S. Plans September 30, 2016 2015 2016 2015 2016 2015 Accumulated Benefit Obligation $ 4,118 $ 2,985 $ 3,359 $ 1,388 $ — $ — Change in Projected Benefit Obligation Projected benefit obligation at beginning of year 3,022 2,875 1,447 1,572 211 224 Service cost 16 31 30 25 2 3 Interest cost 104 122 44 46 6 9 Plan participant contributions — — 1 1 6 6 Benefit obligations assumed in Tyco acquisition 974 — 1,635 — 30 — Other acquisitions — — 279 — 2 — Divestitures — — — (18 ) — — Actuarial loss 355 203 295 7 5 — Benefits and settlements paid (301 ) (209 ) (116 ) (65 ) (22 ) (24 ) Estimated subsidy received — — — — 1 1 Curtailment — — — (5 ) — — Other (1 ) — (1 ) 43 1 (4 ) Currency translation adjustment — — (92 ) (159 ) — (4 ) Projected benefit obligation at end of year $ 4,169 $ 3,022 $ 3,522 $ 1,447 $ 242 $ 211 Change in Plan Assets Fair value of plan assets at beginning of year $ 2,606 $ 2,504 $ 1,177 $ 1,201 $ 194 $ 219 Actual return on plan assets 267 (4 ) 113 48 17 (9 ) Plan assets acquired in Tyco acquisition 705 — 1,149 — — — Other acquisitions — — 180 — — — Divestitures — — — (10 ) — — Employer and employee contributions 16 315 121 81 7 8 Benefits paid (124 ) (201 ) (59 ) (55 ) (22 ) (24 ) Settlement payments (177 ) (8 ) (57 ) (10 ) — — Other — — — 39 — — Currency translation adjustment — — (88 ) (117 ) — — Fair value of plan assets at end of year $ 3,293 $ 2,606 $ 2,536 $ 1,177 $ 196 $ 194 Funded status $ (876 ) $ (416 ) $ (986 ) $ (270 ) $ (46 ) $ (17 ) Amounts recognized in the statement of financial position consist of: Prepaid benefit cost - continuing operations $ 21 $ 16 $ 25 $ 20 $ 53 $ 37 Prepaid benefit cost - discontinued operations 1 1 7 10 — — Accrued benefit liability - continuing operations (896 ) (432 ) (832 ) (184 ) (95 ) (52 ) Accrued benefit liability - discontinued operations (2 ) (1 ) (186 ) (116 ) (4 ) (2 ) Net amount recognized $ (876 ) $ (416 ) $ (986 ) $ (270 ) $ (46 ) $ (17 ) Weighted Average Assumptions (1) Discount rate (2) 3.70 % 4.40 % 1.90 % 3.15 % 3.30 % 3.75 % Rate of compensation increase 3.20 % 3.25 % 2.75 % 3.00 % NA NA (1) Plan assets and obligations are determined based on a September 30 measurement date at September 30, 2016 and 2015 . (2) The Company considers the expected benefit payments on a plan-by-plan basis when setting assumed discount rates. As a result, the Company uses different discount rates for each plan depending on the plan jurisdiction, the demographics of participants and the expected timing of benefit payments. For the U.S. pension and postretirement plans, the Company uses a discount rate provided by an independent third party calculated based on an appropriate mix of high quality bonds. For the non-U.S. pension and postretirement plans, the Company consistently uses the relevant country specific benchmark indices for determining the various discount rates. At September 30, 2015, the Company changed the method used to estimate the service and interest components of net periodic benefit cost for pension and other postretirement benefits for plans that utilize a yield curve approach. This change compared to the previous method results in different service and interest components of net periodic benefit cost (credit). Historically, the Company estimated these service and interest cost components utilizing a single weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. The Company elected to utilize a full yield curve approach in the estimation of these components by applying the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flows. The Company made this change to provide a more precise measurement of service and interest costs by improving the correlation between projected benefit cash flows to the corresponding spot yield curve rates. This change does not affect the measurement of the total benefit obligations or annual net periodic benefit cost (credit) as the change in the service and interest costs is completely offset in the net actuarial (gain) loss reported. The change in the service and interest costs was not significant. The Company accounted for this change as a change in accounting estimate. Accumulated Other Comprehensive Income The amounts in AOCI on the consolidated statements of financial position, exclusive of tax impacts, that have not yet been recognized as components of net periodic benefit cost at September 30, 2016 are as follows (in millions): Pension Benefits Postretirement Benefits Accumulated other comprehensive loss Net transition asset $ 1 $ — Net prior service cost 4 — Total $ 5 $ — The amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year are shown below (in millions): Pension Benefits Postretirement Benefits Amortization of: Net transition obligation $ — $ — Net prior service cost 1 — Total $ 1 $ — Net Periodic Benefit Cost The table that follows contains the components of net periodic benefit cost (in millions): Pension Benefits Postretirement Benefits U.S. Plans Non-U.S. Plans Year ended September 30, 2016 2015 2014 2016 2015 2014 2016 2015 2014 Components of Net Periodic Benefit Cost (Credit): Service cost $ 16 $ 31 $ 70 $ 30 $ 32 $ 38 $ 2 $ 3 $ 5 Interest cost 104 122 138 44 57 71 6 9 12 Expected return on plan assets (191 ) (181 ) (207 ) (61 ) (71 ) (75 ) (10 ) (12 ) (12 ) Net actuarial (gain) loss 268 387 126 237 14 172 (2 ) 21 (24 ) Amortization of prior service cost (credit) — — 1 1 (1 ) (1 ) (1 ) (1 ) (7 ) Curtailment gain — — — — (15 ) (2 ) — — — Settlement loss 11 1 15 6 — 1 — — — Net periodic benefit cost (credit) 208 360 143 257 16 204 (5 ) 20 (26 ) Net periodic benefit (cost) credit related to discontinued operations (1 ) (1 ) (1 ) (111 ) 1 (107 ) (1 ) (1 ) 7 Net periodic benefit cost (credit) included in continuing operations $ 207 $ 359 $ 142 $ 146 $ 17 $ 97 $ (6 ) $ 19 $ (19 ) Expense Assumptions: Discount rate 4.40 % 4.35 % 4.90 % 3.10 % 3.00 % 3.60 % 3.75 % 4.35 % 4.90 % Expected return on plan assets 7.50 % 7.50 % 8.00 % 4.50 % 4.50 % 4.75 % 5.45 % 5.75 % 5.80 % Rate of compensation increase 3.25 % 3.25 % 3.30 % 3.30 % 2.60 % 2.60 % NA NA NA

Significant Restructuring and I

Significant Restructuring and Impairment Costs (Notes)	12 Months Ended
	Sep. 30, 2016
Restructuring and Related Activities [Abstract]
SIGNIFICANT RESTRUCTURING AND IMPAIRMENT COSTS	SIGNIFICANT RESTRUCTURING AND IMPAIRMENT COSTS To better align its resources with its growth strategies and reduce the cost structure of its global operations to address the softness in certain underlying markets, the Company commits to restructuring plans as necessary. In fiscal 2016, the Company committed to a significant restructuring plan (2016 Plan) and recorded $288 million of restructuring and impairment costs in the consolidated statements of income. This is the total amount incurred to date and the total amount expected to be incurred for this restructuring plan. The restructuring actions related to cost reduction initiatives in the Company’s Buildings and Power Solutions businesses and at Corporate. The costs consist primarily of workforce reductions, plant closures, asset impairments and change-in-control payments. Of the restructuring and impairment costs recorded, $161 million related to Corporate, $66 million related to the Power Solutions segment, $26 million related to the Building Efficiency Asia segment, $16 million related to the Building Efficiency Rest of World segment, $9 million related to the Building Efficiency Products North America segment, $8 million related to the Tyco segment, and $2 million related to the Building Efficiency Systems and Service North America segment. The restructuring actions are expected to be substantially complete in fiscal 2018. Included in the reserve is $78 million of committed restructuring actions taken by Tyco for liabilities assumed as part of the Tyco acquisition. Additionally, the Company recorded $332 million of restructuring and impairment costs within discontinued operations related to Adient in fiscal 2016. The following table summarizes the changes in the Company’s 2016 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Currency Total Original Reserve $ 368 $ 190 $ 62 $ — $ 620 Acquired Tyco restructuring reserves 78 — — 78 Utilized—cash (32 ) — — — (32 ) Utilized—noncash — (190 ) (32 ) 1 (221 ) Balance at September 30, 2016 $ 414 $ — $ 30 $ 1 $ 445 At September 30, 2016, the restructuring reserve for continuing and discontinued operations totaled $445 million , of which $229 million was recorded within other current liabilities and $216 million was recorded within liabilities held for sale in the consolidated statements of financial position. In fiscal 2015, the Company committed to a significant restructuring plan (2015 Plan) and recorded $215 million of restructuring and impairment costs in the consolidated statements of income. This is the total amount incurred to date and the total amount expected to be incurred for this restructuring plan. The restructuring actions related to cost reduction initiatives in the Company’s Building Efficiency and Power Solutions businesses and at Corporate. The costs consist primarily of workforce reductions and asset impairments. Of the restructuring and impairment costs recorded, $166 million related to Corporate, $13 million related to the Building Efficiency Rest of World segment, $11 million related to the Power Solutions segment, $11 million related to the Building Efficiency Asia segment, $11 million related to the Building Efficiency Products North America segment, and $3 million related to the Building Efficiency Systems and Service North America segment. The restructuring actions are expected to be substantially complete in 2016. Additionally, the Company recorded $182 million of restructuring and impairment costs within discontinued operations related to Adient in fiscal 2015. The following table summarizes the changes in the Company’s 2015 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Total Original Reserve $ 191 $ 183 $ 23 $ 397 Utilized—noncash — (183 ) — (183 ) Balance at September 30, 2015 $ 191 $ — $ 23 $ 214 Utilized—cash (74 ) — (23 ) (97 ) Balance at September 30, 2016 $ 117 $ — $ — $ 117 At September 30, 2016, the restructuring reserve for continuing and discontinued operations totaled $117 million , of which $5 million was recorded within other current liabilities and $112 million was recorded within liabilities held for sale in the consolidated statements of financial position. In fiscal 2014, the Company committed to a significant restructuring plan (2014 Plan) and recorded $165 million of restructuring and impairment costs in the consolidated statements of income. This is the total amount incurred to date and the total amount expected to be incurred for this restructuring plan. The restructuring actions related primarily to cost reduction initiatives in the Company’s Building Efficiency and Power Solutions businesses and included workforce reductions, plant closures, and asset and goodwill impairments. Of the restructuring and impairment costs recorded, $119 million related to the Building Efficiency Rest of World segment, $16 million related to the Power Solutions segment, $12 million related to the Building Efficiency Systems and Service North America segment, $7 million related to the Building Efficiency Products North America segment, $7 million related to Corporate and $4 million related to the Building Efficiency Asia segment. The restructuring actions are expected to be substantially complete in 2016. Additionally, the Company recorded $212 million of restructuring and impairment costs within discontinued operations, of which $159 million related to Adient and $53 million related to the Automotive Experience Electronics business in fiscal 2014. The following table summarizes the changes in the Company’s 2014 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 191 $ 134 $ 47 $ 5 $ — $ 377 Utilized—cash (8 ) — — — — (8 ) Utilized—noncash — (134 ) (47 ) — (6 ) (187 ) Balance at September 30, 2014 $ 183 $ — $ — $ 5 $ (6 ) $ 182 Utilized—cash (65 ) — — (5 ) — (70 ) Utilized—noncash — — — — (13 ) (13 ) Balance at September 30, 2015 $ 118 $ — $ — $ — $ (19 ) $ 99 Utilized—cash (74 ) — — — — (74 ) Utilized—noncash — — — — (2 ) (2 ) Balance at September 30, 2016 $ 44 $ — $ — $ — $ (21 ) $ 23 At September 30, 2016, the restructuring reserve for continuing and discontinued operations totaled $23 million , of which $12 million was recorded within other current liabilities and $11 million was recorded within liabilities held for sale in the consolidated statements of financial position, respectively. In fiscal 2013, the Company committed to a significant restructuring plan (2013 Plan) and recorded $191 million of restructuring and impairment costs in the consolidated statements of income. This is the total amount incurred to date and the total amount expected to be incurred for this restructuring plan. The restructuring actions related to cost reduction initiatives in the Company’s Building Efficiency and Power Solutions businesses and included workforce reductions and asset impairments. Of the restructuring and impairment costs recorded, $70 million related to the Building Efficiency Rest of World segment, $36 million related to the Power Solutions segment, $35 million related to the Building Efficiency Systems and Service North America segment, $28 million related to the Building Efficiency Products North America segment, $17 million related to Corporate and $5 million related to the Building Efficiency Asia segment. The restructuring actions are expected to be substantially complete in 2016. Additionally, the Company recorded $794 million of restructuring costs within discontinued operations, of which $712 million related to Adient, $54 million related to the GWS business and $28 million related to the Automotive Experience Electronics business in fiscal 2013. The following table summarizes the changes in the Company’s 2013 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 392 $ 156 $ 430 $ 7 $ — $ 985 Utilized—cash (26 ) — — — — (26 ) Utilized—noncash — (156 ) (430 ) (4 ) 4 (586 ) Transfer to liabilities held for sale (31 ) — — — — (31 ) Balance at September 30, 2013 $ 335 $ — $ — $ 3 $ 4 $ 342 Utilized—cash (144 ) — — (3 ) — (147 ) Utilized—noncash — — — — (11 ) (11 ) Transfer from liabilities held for sale 31 — — — — 31 Transfer to liabilities held for sale (24 ) — — — — (24 ) Balance at September 30, 2014 $ 198 $ — $ — $ — $ (7 ) $ 191 Utilized—cash (113 ) — — — — (113 ) Utilized—noncash — — — — (10 ) (10 ) Balance at September 30, 2015 $ 85 $ — $ — $ — $ (17 ) $ 68 Utilized—cash (43 ) — — — — (43 ) Utilized—noncash — — — — (1 ) (1 ) Balance at September 30, 2016 $ 42 $ — $ — $ — $ (18 ) $ 24 The $31 million of transfers from liabilities held for sale represent restructuring reserves that were included in liabilities held for sale in the consolidated statements of financial position at September 30, 2013, but were excluded from liabilities held for sale at September 30, 2014 based on transaction negotiations. See Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's assets and liabilities held for sale. At September 30, 2016, the restructuring reserve for continuing and discontinued operations totaled $24 million , of which $11 million was recorded within other current liabilities and $13 million was recorded within liabilities held for sale in the consolidated statements of financial position. The Company's fiscal 2016, 2015, 2014 and 2013 restructuring plans included workforce reductions of approximately 7,700 employees ( 6,200 for the Buildings business, 900 for the Power Solutions business and 600 for Corporate). Restructuring charges associated with employee severance and termination benefits are paid over the severance period granted to each employee or on a lump sum basis in accordance with individual severance agreements. As of September 30, 2016 , approximately 4,700 of the employees have been separated from the Company pursuant to the restructuring plans. In addition, the restructuring plans included eight plant closures in the Buildings business). As of September 30, 2016 , one of the eight plants have been closed. Refer to Note 17, "Impairment of Long-Lived Assets," of the notes to consolidated financial statements for further information regarding the long-lived asset impairment charges recorded as part of the restructuring actions. Refer to Note 7, "Goodwill and Other Intangible Assets," of the notes to consolidated financial statements for further information regarding the goodwill impairment charges recorded. Company management closely monitors its overall cost structure and continually analyzes each of its businesses for opportunities to consolidate current operations, improve operating efficiencies and locate facilities in close proximity to customers. This ongoing analysis includes a review of its manufacturing, engineering and purchasing operations, as well as the overall global footprint for all its businesses.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets (Notes)	12 Months Ended
	Sep. 30, 2016
Disclosure Impairment Of Long Lived Assets [Abstract]
IMPAIRMENT OF LONG-LIVED ASSETS	IMPAIRMENT OF LONG-LIVED ASSETS The Company reviews long-lived assets, including property, plant and equipment and other intangible assets with definite lives, for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. The Company conducts its long-lived asset impairment analyses in accordance with ASC 360-10-15, "Impairment or Disposal of Long-Lived Assets." ASC 360-10-15 requires the Company to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals. In the second, third and fourth quarters of fiscal 2016, the Company concluded it had triggering events requiring assessment of impairment for certain of its long-lived assets in conjunction with its restructuring actions announced in fiscal 2016. As a result, the Company reviewed the long-lived assets for impairment and recorded $103 million of asset impairment charges within restructuring and impairment costs on the consolidated statements of income. Of the total impairment charges, $64 million related to the Power Solutions segment, $24 million related to Corporate assets, $8 million related to the Building Efficiency Products North America segment, $4 million related to the Building Efficiency Asia segment and $3 million related to the Building Efficiency Rest of World segment. In addition, the Company recorded $87 million of asset impairments within discontinued operations related to Adient in fiscal 2016. Refer to Note 16, "Significant Restructuring and Impairment Costs," of the notes to consolidated financial statements for additional information. The impairments were measured, depending on the asset, under either an income approach utilizing forecasted discounted cash flows or a market approach utilizing an appraisal to determine fair values of the impaired assets. These methods are consistent with the methods the Company employed in prior periods to value other long-lived assets. The inputs utilized in the analyses are classified as Level 3 inputs within the fair value hierarchy as defined in ASC 820, "Fair Value Measurement." In the fourth quarter of fiscal 2015, the Company concluded it had triggering events requiring assessment of impairment for certain of its long-lived assets in conjunction with its announced restructuring actions and the intention to spin-off the Automotive Experience business. As a result, the Company reviewed the long-lived assets for impairment and recorded a $156 million impairment charge within restructuring and impairment costs on the consolidated statements of income. Of the total impairment charge, $139 million related to Corporate assets, $16 million related to the Building Efficiency Rest of World segment, and $1 million related to the Building Efficiency Systems and Service North America segment. In addition, the Company recorded $27 million of asset impairments within discontinued operations related to Adient in fiscal 2015. Refer to Note 16, "Significant Restructuring and Impairment Costs," of the notes to consolidated financial statements for additional information. The impairment was measured, depending on the asset, either under an income approach utilizing forecasted discounted cash flows or a market approach utilizing an appraisal to determine fair values of the impaired assets. These methods are consistent with the methods the Company employed in prior periods to value other long-lived assets. The inputs utilized in the analyses are classified as Level 3 inputs within the fair value hierarchy as defined in ASC 820, "Fair Value Measurement." In the third and fourth quarters of fiscal 2014, the Company concluded it had triggering events requiring assessment of impairment for certain of its long-lived assets in conjunction with its restructuring actions announced in fiscal 2014. In addition, in the fourth quarter of fiscal 2014, the Company concluded that it had a triggering event requiring assessment of impairment of long-lived assets held by the Building Efficiency Rest of World - Latin America reporting unit due to the impairment of goodwill in the quarter. As a result, the Company reviewed the long-lived assets for impairment and recorded a $39 million impairment charge within restructuring and impairment costs on the consolidated statements of income. Of the total impairment charge, $34 million related to the Building Efficiency Rest of World segment and $5 million related to Corporate assets. In addition, the Company recorded $52 million of asset impairments within discontinued operations related to Adient in fiscal 2014 and $43 million of asset and investment impairments within discontinued operations in the third quarter of fiscal 2014 related to the divestiture of the Automotive Experience Electronics business. Refer to Note 4, "Discontinued Operations," and Note 16, "Significant Restructuring and Impairment Costs," of the notes to consolidated financial statements for additional information. The impairment was measured, depending on the asset, either under an income approach utilizing forecasted discounted cash flows or a market approach utilizing an appraisal to determine fair values of the impaired assets. These methods are consistent with the methods the Company employed in prior periods to value other long-lived assets. The inputs utilized in the analyses are classified as Level 3 inputs within the fair value hierarchy as defined in ASC 820, "Fair Value Measurement." At September 30, 2016 , 2015 and 2014 , the Company concluded it did not have any other triggering events requiring assessment of impairment of its long-lived assets. Refer to Note 1, "Summary of Significant Accounting Policies," of the notes to consolidated financial statements for discussion of the Company’s goodwill impairment testing. Refer to Note 7, "Goodwill and Other Intangible Assets," of the notes to consolidated financial statements for further information regarding the goodwill impairment charges recorded in the fourth quarter of fiscal 2014 .

Income Taxes (Notes)

Income Taxes (Notes)	12 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES The more significant components of the Company’s income tax provision from continuing operations are as follows (in millions): Year Ended September 30, 2016 2015 2014 Tax expense at federal statutory rate $ 371 $ 326 $ 363 State income taxes, net of federal benefit (6 ) (6 ) (5 ) Foreign income tax expense at different rates and foreign losses without tax benefits (122 ) (175 ) (55 ) U.S. tax on foreign income (194 ) 39 (233 ) Reserve and valuation allowance adjustments — (99 ) 34 U.S. credits and incentives (14 ) (7 ) (5 ) Impact of transactions 163 — — Restructuring and impairment costs 28 — 30 Other (29 ) (7 ) (36 ) Income tax provision $ 197 $ 71 $ 93 The U.S. federal statutory tax rate is being used as a comparison since the Company was a U.S. domiciled company in fiscal 2014, 2015 and 11 months of 2016. The effective rate is below the U.S. statutory rate for fiscal 2016 primarily due to the benefits of continuing global tax planning initiatives and foreign tax rate differentials, partially offset by the jurisdictional mix of restructuring and impairment costs, and the tax impacts of the merger and integration related costs. The effective rate is below the U.S. statutory rate for fiscal 2015 primarily due to the benefits of continuing global tax planning initiatives, income in certain non-U.S. jurisdictions with a tax rate lower than the U.S. statutory tax rate and adjustments due to tax audit resolutions. The effective rate is below the U.S. statutory rate for fiscal 2014 primarily due to the benefits of continuing global tax planning initiatives and income in certain non-U.S. jurisdictions with a tax rate lower than the U.S. statutory tax rate partially offset by significant restructuring and impairment costs, and valuation allowance adjustments. Valuation Allowances The Company reviews the realizability of its deferred tax asset valuation allowances on a quarterly basis, or whenever events or changes in circumstances indicate that a review is required. In determining the requirement for a valuation allowance, the historical and projected financial results of the legal entity or consolidated group recording the net deferred tax asset are considered, along with any other positive or negative evidence. Since future financial results may differ from previous estimates, periodic adjustments to the Company’s valuation allowances may be necessary. As a result of the Tyco Merger in the fourth quarter of fiscal 2016, the Company recorded as part of the acquired liabilities of Tyco $2.4 billion of valuation allowances. Also in the fourth quarter of fiscal 2016, the Company performed an analysis related to the realizability of its worldwide deferred tax assets. As a result, and after considering tax planning initiatives and other positive and negative evidence, the Company determined that no other material changes were needed to its valuation allowances. Therefore, there was no impact to income tax expense due to valuation allowance changes in the three month period or year ended September 30, 2016. In the fourth quarter of fiscal 2015, the Company performed an analysis related to the realizability of its worldwide deferred tax assets. As a result, and after considering tax planning initiatives and other positive and negative evidence, the Company determined that it was more likely than not that certain deferred tax assets primarily within Spain, Germany, and the United Kingdom would not be realized, and it is more likely than not that certain deferred tax assets of Poland and Germany will be realized. The impact of the net valuation allowance provision offset the benefit of valuation allowance releases and, as such, there was no net impact to income tax expense in the three month period ended September 30, 2015. In the fourth quarter of fiscal 2014, the Company performed an analysis related to the realizability of its worldwide deferred tax assets. As a result, and after considering tax planning initiatives and other positive and negative evidence, the Company determined that it was more likely than not that deferred tax assets within Italy would not be realized. Therefore, the Company recorded $34 million of net valuation allowances as income tax expense in the three month period ended September 30, 2014. In the first quarter of fiscal 2014, the Company determined that it was more likely than not that the deferred tax asset associated with a capital loss in Mexico would not be utilized. Therefore, the Company recorded a $21 million valuation allowance as income tax expense. Uncertain Tax Positions The Company is subject to income taxes in the U.S. and numerous foreign jurisdictions. Judgment is required in determining its worldwide provision for income taxes and recording the related assets and liabilities. In the ordinary course of the Company’s business, there are many transactions and calculations where the ultimate tax determination is uncertain. The Company is regularly under audit by tax authorities. At September 30, 2016, the Company had gross tax effected unrecognized tax benefits for continuing operations of $1,706 million of which $1,604 million , if recognized, would impact the effective tax rate. Total net accrued interest at September 30, 2016 was approximately $55 million (net of tax benefit). At September 30, 2015, the Company had gross tax effected unrecognized tax benefits for continuing operations of $ 1,052 million of which $997 million , if recognized, would impact the effective tax rate. Total net accrued interest at September 30, 2015 was approximately $33 million (net of tax benefit). At September 30, 2014, the Company had gross tax effected unrecognized tax benefits for continuing operations of $1,493 million of which $1,343 million , if recognized, would impact the effective tax rate. Total net accrued interest at September 30, 2014 was approximately $96 million (net of tax benefit). A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions): Year Ended September 30, 2016 2015 2014 Beginning balance, October 1 $ 1,052 $ 1,493 $ 1,187 Additions for tax positions related to the current year 442 329 315 Additions for tax positions of prior years 15 23 31 Reductions for tax positions of prior years (66 ) (111 ) (26 ) Settlements with taxing authorities (104 ) (541 ) (9 ) Statute closings (30 ) (18 ) (5 ) Audit resolutions — (123 ) — Acquisition of business 397 — — Ending balance, September 30 $ 1,706 $ 1,052 $ 1,493 During fiscal 2015, the Company settled a significant number of tax examinations in Germany, Mexico and the U.S., impacting fiscal years 1998 to fiscal 2012. The settlement of unrecognized tax benefits included cash payments for approximately $440 million and the loss of various tax attributes. The reduction for tax positions of prior years is substantially related to foreign exchange rates. In the fourth quarter of fiscal 2015, income tax audit resolutions resulted in a net $99 million benefit to income tax expense. In the U.S., fiscal years 2010 through 2014 are currently under exam by the Internal Revenue Service ("IRS") and 2008 through 2009 are currently under IRS appeals. Additionally, the Company is currently under exam in the following major foreign jurisdictions for continuing operations: Tax Jurisdiction Tax Years Covered Belgium 2011 - 2014 Brazil 2011 - 2012 Canada 2012 - 2015 France 2010 - 2015 Germany 2007 - 2013 Italy 2006, 2011 Korea 2012 - 2015 Mexico 2009 - 2015 Spain 2008 - 2014 United Kingdom 2011 - 2014 It is reasonably possible that certain tax examinations, tax appeals and /or tax litigation will conclude within the next twelve months, of which could be up to a $50 million impact to tax expense. Other Tax Matters During fiscal 2016 , 2015 and 2014 , the Company incurred significant charges for restructuring and impairment costs. Refer to Note 16, "Significant Restructuring and Impairment Costs," of the notes to consolidated financial statements for additional information. A substantial portion of these charges cannot be benefited for tax purposes due to the Company's current tax position in these jurisdictions and the underlying tax basis in the impaired assets, resulting in $28 million and $30 million incremental tax expense in fiscal 2016 and 2014 , respectively. During the fourth quarter of fiscal 2016, the Company completed its merger with Tyco. As a result of that transaction, the Company incurred incremental tax expense of $137 million . In preparation for the spin-off of the Automotive Experience business in the first quarter of fiscal 2017, the Company incurred incremental tax expense for continuing operations of $26 million in fiscal 2016. As a result of the Tyco Merger in the fourth quarter of fiscal 2016, the Company recorded as part of the acquired liabilities of Tyco $290 million of post sale contingent tax indemnification liabilities within other noncurrent liabilities in the consolidated statements of financial position. The liabilities are recorded at fair value and relate to certain tax related matters borne by the buyer of previously divested subsidiaries of Tyco which Tyco has indemnified certain parties and the amounts are probable of being paid. Of the $290 million recorded as of September 30, 2016, $255 million is related to prior divested businesses and the remainder relates to Tyco’s tax sharing agreements from its 2007 and 2012 spin-off transactions. These are certain guarantees or indemnifications extended among Tyco, Medtronic, TE Connectivity, ADT and Pentair in accordance with the terms of the 2007 and 2012 separation and tax sharing agreements. During the fourth quarter of fiscal 2014, the Company recorded a discrete tax benefit of $51 million due to change in entity status. Impacts of Tax Legislation and Change in Statutory Tax Rates After the fourth quarter of fiscal 2016, on October 13, 2016, the U.S. Treasury and the IRS released final and temporary Section 385 regulations. These regulations address whether certain instruments between related parties are treated as debt or equity. The Company does not expect that the regulations will have a material impact on its consolidated financial statements. The "look-through rule," under subpart F of the U.S. Internal Revenue Code, expired for the Company on September 30, 2015. The "look-through rule" had provided an exception to the U.S. taxation of certain income generated by foreign subsidiaries. The rule was extended in December 2015 retroactive to the beginning of the Company’s 2016 fiscal year. The retroactive extension was signed into legislation and was made permanent through the Company's 2020 fiscal year. In the second quarter of fiscal 2015, tax legislation was adopted in Japan which reduced its statutory income tax rate. As a result of the law change, the Company recorded income tax expense of $17 million in the second quarter of fiscal 2015. As a result of changes to Mexican tax law in the first quarter of fiscal 2014, the Company recorded a benefit to income tax expense of $25 million . During the fiscal years ended 2016 , 2015 and 2014, other tax legislation was adopted in various jurisdictions. These law changes did not have a material impact on the Company's consolidated financial statements. Continuing Operations Components of the provision for income taxes on continuing operations were as follows (in millions): Year Ended September 30, 2016 2015 2014 Current Federal $ 169 $ (688 ) $ (90 ) State 5 (33 ) (2 ) Foreign 788 550 397 962 (171 ) 305 Deferred Federal (321 ) 410 (137 ) State (15 ) (2 ) (8 ) Foreign (429 ) (166 ) (67 ) (765 ) 242 (212 ) Income tax provision $ 197 $ 71 $ 93 Consolidated U.S. income from continuing operations before income taxes and noncontrolling interests for the fiscal years ended September 30, 2016 , 2015 and 2014 was income of $943 million , $418 million and $898 million , respectively. Consolidated foreign income from continuing operations before income taxes and noncontrolling interests for the fiscal years ended September 30, 2016 , 2015 and 2014 was income of $119 million , $513 million and $139 million , respectively. Income taxes paid for continuing and discontinued operations for the fiscal years ended September 30, 2016 , 2015 and 2014 were $1,388 million , $1,163 million and $782 million , respectively. At September 30, 2016 and 2015 , the Company recorded within the consolidated statements of financial position in other current liabilities approximately $1,505 million and $291 million , respectively, of accrued income tax liabilities for continuing operations. The Company has not provided U.S. or non-U.S. income taxes on approximately $5.5 billion of outside basis differences of Johnson Controls, Inc. consolidated subsidiaries of the Company. The reduction of the outside basis differences via the sale or liquidation of these consolidated subsidiaries and/or distributions could create taxable income. The Company has also not provided U.S. or non-U.S. income taxes on additional outside basis differences relating to the Tyco Merger. The Company is currently finalizing the purchase price allocation by legal entity to the assets acquired and liabilities assumed which will be used to calculate the outside basis differences of certain of its consolidated subsidiaries of the Company. This purchase price allocation , by legal entity , will be completed within the measurement period in fiscal 2017. The Company’s intent is to reduce the outside basis differences only when it would be tax efficient. It is not practicable to estimate the amount of unrecognized withholding taxes and deferred tax liability on the outside basis differences. Deferred taxes were classified in the consolidated statements of financial position as follows (in millions): September 30, 2016 2015 Other noncurrent assets 2,467 1,630 Other noncurrent liabilities (1,542 ) (203 ) Net deferred tax asset $ 925 $ 1,427 Temporary differences and carryforwards which gave rise to deferred tax assets and liabilities included (in millions): September 30, 2016 2015 Deferred tax assets Accrued expenses and reserves $ 1,175 $ 215 Employee and retiree benefits 438 241 Net operating loss and other credit carryforwards 4,483 2,460 Research and development 85 54 Joint ventures and partnerships 49 10 Other 19 12 6,249 2,992 Valuation allowances (3,400 ) (1,151 ) 2,849 1,841 Deferred tax liabilities Property, plant and equipment 87 125 Intangible assets 1,837 289 1,924 414 Net deferred tax asset $ 925 $ 1,427 At September 30, 2016 , the Company had available net operating loss carryforwards of approximately $14.7 billion , of which $4.4 billion will expire at various dates between 2017 and 2036 , and the remainder has an indefinite carryforward period. The Company had available U.S. foreign tax credit carryforwards at September 30, 2016 of $80 million , which will expire at various dates between 2020 and 2024 . The valuation allowance, generally, is for loss carryforwards for which realization is uncertain because it is unlikely that the losses will be realized given the lack of sustained profitability and/or limited carryforward periods in certain countries. As of September 30, 2016, deferred tax assets of approximately $180 million relate to certain operating loss carryforwards resulting from the exercise of employee stock options and restricted stock vestings, the tax benefit of which, when recognized, will be accounted for as a credit to additional paid-in capital rather than a reduction of income tax provision. Such amount has been presented within the tax loss and carryforwards line in the table above.

Segment Information (Notes)

Segment Information (Notes)	12 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION During the first quarter of fiscal 2017, the Company determined that the Automotive Experience business met the criteria to be classified as a discontinued operation, which required retrospective application to financial information for all periods presented. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's discontinued operations. In the first quarter of fiscal 2017, the Company began evaluating the performance of its business segments primarily on segment EBITA, which represents income from continuing operations before income taxes and noncontrolling interests, excluding general corporate expenses, intangible asset amortization, net financing charges, significant restructuring and impairment costs, and the net mark-to-market adjustments related to pension and postretirement plans. Historical information has been revised to present the comparable periods on a consistent basis. ASC 280, "Segment Reporting," establishes the standards for reporting information about segments in financial statements. In applying the criteria set forth in ASC 280, the Company has determined that it has six reportable segments for financial reporting purposes. The Company’s six reportable segments are presented in the context of its two primary businesses - Buildings and Power Solutions. Buildings Building Efficiency Building Efficiency designs, produces, markets and installs HVAC and control systems that monitor, automate and integrate critical building segment equipment and conditions including HVAC, fire-safety and security in commercial buildings and in various industrial applications. • Systems and Service North America provides products and services to non-residential building and industrial applications in the North American marketplace. The products and services include HVAC and controls systems, energy efficiency solutions and technical services, including inspection, scheduled maintenance, and repair and replacement of mechanical and control systems. • Products North America designs and produces heating and air conditioning solutions for residential and light commercial applications, and also markets products and refrigeration systems to the replacement and new construction markets in the North American marketplace. Products North America also includes HVAC products installed for Navy and Marine customers globally. • Asia provides HVAC, controls and refrigeration systems and technical services to the Asian marketplace. Asia also includes the Johnson Controls-Hitachi Air Conditioning joint venture, which was formed October 1, 2015. • Rest of World provides HVAC, controls and refrigeration systems and technical services to markets in Europe, the Middle East and Latin America. Tyco Tyco designs, sells, installs, services and monitors integrated electronic security systems and integrated fire detection and suppression systems for commercial, industrial, retail, small business, institutional and governmental customers. The Tyco business also designs, manufactures and sells fire protection, security and life safety products, including intrusion security, anti-theft devices, breathing apparatus and access control and video management systems, for commercial, industrial, retail, residential, small business, institutional and governmental customers worldwide. Power Solutions Power Solutions services both automotive original equipment manufacturers and the battery aftermarket by providing advanced battery technology, coupled with systems engineering, marketing and service expertise. Financial information relating to the Company’s reportable segments is as follows (in millions): Year Ended September 30, 2016 2015 2014 Net Sales Buildings Building Efficiency Systems and Service North America $ 4,292 $ 4,184 $ 4,098 Products North America 2,488 2,450 1,807 Asia 4,830 1,985 2,077 Rest of World 1,766 1,891 2,103 13,376 10,510 10,085 Tyco 808 — — 14,184 10,510 10,085 Power Solutions 6,653 6,590 6,632 Total net sales $ 20,837 $ 17,100 $ 16,717 Year Ended September 30, 2016 2015 2014 Segment EBITA Buildings Building Efficiency Systems and Service North America (1) $ 500 $ 419 $ 396 Products North America (2) 271 380 279 Asia (3) 541 215 294 Rest of World (4) 55 72 (24 ) 1,367 1,086 945 Tyco (5) 60 — — 1,427 1,086 945 Power Solutions (6) 1,327 1,241 1,139 Total segment EBITA $ 2,754 $ 2,327 $ 2,084 Amortization of intangible assets (116 ) (74 ) (61 ) Corporate expenses (7) (607 ) (417 ) (408 ) Net financing charges (289 ) (274 ) (226 ) Restructuring and impairment costs (288 ) (215 ) (165 ) Net mark-to-market adjustments on pension and postretirement plans (393 ) (416 ) (187 ) Income from continuing operations before income taxes $ 1,061 $ 931 $ 1,037 September 30, 2016 2015 2014 Assets Buildings Building Efficiency Systems and Service North America $ 2,338 $ 2,332 $ 2,341 Products North America 4,236 4,193 4,157 Asia 3,668 1,387 1,418 Rest of World 1,416 1,471 1,642 11,658 9,383 9,558 Tyco (8) 28,097 — — 39,755 9,383 9,558 Power Solutions 6,859 6,590 6,888 Assets held for sale 13,186 10,613 12,565 Unallocated 3,379 3,004 3,766 Total $ 63,179 $ 29,590 $ 32,777 Year Ended September 30, 2016 2015 2014 Depreciation/Amortization Buildings Building Efficiency Systems and Service North America $ 29 $ 26 $ 28 Products North America 111 115 79 Asia 97 24 22 Rest of World 15 16 23 252 181 152 Tyco 52 — — 304 181 152 Power Solutions 238 286 306 Corporate 80 60 55 Discontinued operations 331 333 442 Total $ 953 $ 860 $ 955 Year Ended September 30, 2016 2015 2014 Capital Expenditures Buildings Building Efficiency Systems and Service North America $ 13 $ 17 $ 24 Products North America 192 130 110 Global Workplace Solutions — 13 15 Asia 105 26 35 Rest of World 22 31 30 332 217 214 Tyco 14 — — 346 217 214 Automotive Experience Seating 392 356 376 Interiors 3 99 162 Electronics — — 27 395 455 565 Power Solutions 357 252 294 Corporate 151 211 126 Total $ 1,249 $ 1,135 $ 1,199 (1) Building Efficiency - Systems and Service North America segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $2 million , $3 million and $12 million , respectively, of restructuring and impairment costs. (2) Building Efficiency - Products North America segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $9 million , $11 million and $7 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Products North America segment EBITA includes $10 million , $9 million and $7 million , respectively, of equity income. (3) Building Efficiency - Asia segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $26 million , $11 million and $4 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 and 2014 , Asia segment EBITA includes $100 million and $21 million , respectively, of equity income. (4) Building Efficiency - Rest of World segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $16 million , $13 million and $119 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Rest of World segment EBITA includes $15 million , $14 million and $7 million , respectively, of equity income. (5) Tyco segment EBITA for the year ended September 30, 2016 excludes $8 million of restructuring and impairment costs. For the year ended September 30, 2016, Tyco segment EBITA includes $1 million of equity income. (6) Power Solutions segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $66 million , $11 million and $16 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Power Solutions segment EBITA includes $48 million , $57 million and $75 million , respectively, of equity income. (7) Corporate expenses for the years ended September 30, 2016, 2015 and 2014 excludes $161 million , $166 million and $7 million , respectively, of restructuring and impairment costs. (8) Current year and prior year amounts exclude assets held for sale. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's disposal groups classified as held for sale. In fiscal years 2016 , 2015 and 2014 , no customer exceeded 10% of consolidated net sales. Geographic Segments Financial information relating to the Company’s operations by geographic area is as follows (in millions): Year Ended September 30, 2016 2015 2014 Net Sales United States $ 9,633 $ 8,982 $ 8,203 Germany 1,430 911 965 Japan 1,805 315 353 Mexico 639 635 663 Other European countries 2,108 2,270 2,592 Other foreign 5,222 3,987 3,941 Total $ 20,837 $ 17,100 $ 16,717 Long-Lived Assets (Year-end) United States $ 2,880 $ 2,056 $ 2,422 Germany 287 304 377 Japan 188 8 3 Mexico 457 368 304 Other European countries 551 280 96 Other foreign 1,269 667 645 Total $ 5,632 $ 3,683 $ 3,847 Net sales attributed to geographic locations are based on the location of the assets producing the sales. Long-lived assets by geographic location consist of net property, plant and equipment.

Nonconsolidated Partially-Owned

Nonconsolidated Partially-Owned Affiliates (Notes)	12 Months Ended
	Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
NONCONSOLIDATED PARTIALLY-OWNED AFFILIATES	NONCONSOLIDATED PARTIALLY-OWNED AFFILIATES Investments in the net assets of nonconsolidated partially-owned affiliates are stated in the "Investments in partially-owned affiliates" and "noncurrent assets held for sale" lines in the consolidated statements of financial position as of September 30, 2016 and 2015 . Equity in the net income of nonconsolidated partially-owned affiliates is stated in the "Equity income" and "income (loss) from discontinued operations, net of tax" lines in the consolidated statements of income for the years ended September 30, 2016 , 2015 and 2014 . The following table presents summarized financial data for the Company’s nonconsolidated partially-owned affiliates. The amounts included in the table below represent 100% of the results of operations of such nonconsolidated partially-owned affiliates accounted for under the equity method, including activity relating to discontinued operations. Summarized balance sheet data as of September 30 is as follows (in millions): 2016 2015 Current assets $ 9,117 $ 7,083 Noncurrent assets 4,164 3,294 Total assets $ 13,281 $ 10,377 Current liabilities $ 7,689 $ 6,268 Noncurrent liabilities 754 604 Noncontrolling interests 78 20 Shareholders’ equity 4,760 3,485 Total liabilities and shareholders’ equity $ 13,281 $ 10,377 Summarized income statement data for the years ended September 30 is as follows (in millions): 2016 2015 2014 Net sales $ 21,456 $ 12,922 $ 10,820 Gross profit 3,119 1,911 1,638 Net income 1,569 890 790 Income attributable to noncontrolling interests 26 10 3 Net income attributable to the entity 1,543 880 787

Guarantees (Notes)

Guarantees (Notes)	12 Months Ended
	Sep. 30, 2016
Guarantees [Abstract]
GUARANTEES	GUARANTEES Certain of the Company's subsidiaries at the business segment level have guaranteed the performance of third-parties and provided financial guarantees for uncompleted work and financial commitments. The terms of these guarantees vary with end dates ranging from the current fiscal year through the completion of such transactions and would typically be triggered in the event of nonperformance. Performance under the guarantees, if required, would not have a material effect on the Company's financial position, results of operations or cash flows. The Company offers warranties to its customers depending upon the specific product and terms of the customer purchase agreement. A typical warranty program requires that the Company replace defective products within a specified time period from the date of sale. The Company records an estimate for future warranty-related costs based on actual historical return rates and other known factors. Based on analysis of return rates and other factors, the Company’s warranty provisions are adjusted as necessary. The Company monitors its warranty activity and adjusts its reserve estimates when it is probable that future warranty costs will be different than those estimates. The Company’s product warranty liability for continuing operations is recorded in the consolidated statements of financial position in other current liabilities if the warranty is less than one year and in other noncurrent liabilities if the warranty extends longer than one year. The changes in the carrying amount of the Company’s total product warranty liability for continuing operations, including extended warranties for which deferred revenue is recorded, for the fiscal years ended September 30, 2016 and 2015 were as follows (in millions): Year Ended September 30, 2016 2015 Balance at beginning of period $ 288 $ 299 Accruals for warranties issued during the period 314 274 Accruals from acquisitions and divestitures 83 — Accruals related to pre-existing warranties (including changes in estimates) (17 ) (5 ) Settlements made (in cash or in kind) during the period (297 ) (275 ) Currency translation 3 (5 ) Balance at end of period $ 374 $ 288 As a result of the Tyco Merger in the fourth quarter of fiscal 2016, the Company recorded as part of the acquired liabilities of Tyco $290 million of post sale contingent tax indemnification liabilities within other noncurrent liabilities in the consolidated statements of financial position. The liabilities are recorded at fair value and relate to certain tax related matters borne by the buyer of previously divested subsidiaries of Tyco which Tyco has indemnified certain parties and the amounts are probable of being paid. Of the $290 million recorded as of September 30, 2016, $255 million is related to prior divested businesses and the remainder relates to Tyco’s tax sharing agreements from its 2007 and 2012 spin-off transactions. These are certain guarantees or indemnifications extended among Tyco, Medtronic, TE Connectivity, ADT and Pentair in accordance with the terms of the 2007 and 2012 separation and tax sharing agreements.

TYCO INTERNATIONAL FINANCE S.A.

TYCO INTERNATIONAL FINANCE S.A. (Notes)	12 Months Ended
	Sep. 30, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Financial Statements [Text Block]	TYCO INTERNATIONAL FINANCE S.A. Tyco International Finance S.A. ("TIFSA"), a 100% owned subsidiary of the Company, has public debt securities outstanding which are fully and unconditionally guaranteed by Johnson Controls and by Tyco Fire & Security Finance S.C.A. ("TIFSCA"), a wholly owned subsidiary of the Company and parent company TIFSA. The following tables present condensed consolidating financial information for Johnson Controls, TIFSCA, TIFSA and all other subsidiaries. Condensed financial information for the Company, TIFSCA and TIFSA on a stand-alone basis is presented using the equity method of accounting for subsidiaries. The TIFSA public debt securities were assumed as part of the Tyco acquisition. Therefore, no consolidating financial information for the years ended September 30, 2015 and September 30, 2014 is presented related to the guarantee of the TIFSA public debt securities. Additional information regarding TIFSA and TIFSCA for the fiscal year ended September 25, 2015 and the period ended June 24, 2016 can be found in Tyco's Annual Report on Form 10-K filed with the SEC on November 13, 2015 (as recast in part in Tyco's Current Report on Form 8-K filed with the SEC on March 11, 2016) and Tyco's Quarterly report on Form 10-Q filed with the SEC on July 29, 2016, respectively. CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Year Ended September 30, 2016 ($ in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Net sales $ — $ — $ — $ 20,837 $ — $ 20,837 Cost of sales — — — 15,183 — 15,183 Gross profit — — — 5,654 — 5,654 Selling, general and administrative expenses (2 ) (2 ) (1 ) (4,185 ) — (4,190 ) Restructuring and impairment costs — — — (288 ) — (288 ) Net financing charges — — (6 ) (283 ) — (289 ) Equity income (loss) (894 ) (1,527 ) (313 ) 174 2,734 174 Intercompany interest and fees 28 — 7 (35 ) — — Income (loss) from continuing operations before income taxes (868 ) (1,529 ) (313 ) 1,037 2,734 1,061 Income tax provision — — — 197 — 197 Income (loss) from continuing operations (868 ) (1,529 ) (313 ) 840 2,734 864 Loss from discontinued operations, net of tax — — — (1,516 ) — (1,516 ) Net income (loss) (868 ) (1,529 ) (313 ) (676 ) 2,734 (652 ) Income from continuing operations attributable to noncontrolling interests — — — 132 — 132 Income from discontinued operations attributable to noncontrolling interests — — — 84 — 84 Net income (loss) attributable to Johnson Controls $ (868 ) $ (1,529 ) $ (313 ) $ (892 ) $ 2,734 $ (868 ) CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Net Income (loss) $ (868 ) $ (1,529 ) $ (313 ) $ (676 ) $ 2,734 $ (652 ) Other comprehensive income (loss), net of tax Foreign currency translation adjustments (105 ) — — (94 ) 105 (94 ) Realized and unrealized gains on derivatives 11 — — 9 (11 ) 9 Realized and unrealized losses on marketable common stock (1 ) — — (1 ) 1 (1 ) Pension and postretirement plans (1 ) — — (1 ) 1 (1 ) Other comprehensive loss (96 ) — — (87 ) 96 (87 ) Total comprehensive loss (964 ) (1,529 ) (313 ) (763 ) 2,830 (739 ) Comprehensive income attributable to noncontrolling interests — — — 225 — 225 Comprehensive loss attributable to Johnson Controls $ (964 ) $ (1,529 ) $ (313 ) $ (988 ) $ 2,830 $ (964 ) CONDENSED CONSOLIDATING STATEMENT OF FINANCIAL POSITION For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Assets Cash and cash equivalents $ 11 $ — $ 244 $ 324 $ — $ 579 Accounts receivable, net — — — 6,394 — 6,394 Inventories — — — 2,888 — 2,888 Intercompany receivables 16 — 2 6,188 (6,206 ) — Assets held for sale — — — 5,812 — 5,812 Other current assets 6 — 1 1,429 — 1,436 Current assets $ 33 $ — $ 247 $ 23,035 $ (6,206 ) $ 17,109 Property, plant and equipment - net — — — 5,632 — 5,632 Goodwill — — 274 20,750 — 21,024 Other intangible assets - net — — — 7,540 — 7,540 Investments in partially-owned affiliates — — — 990 — 990 Investments in affiliates 12,460 31,405 27,906 — (71,771 ) — Intercompany loans receivable 18,680 — 13,336 15,631 (47,647 ) — Noncurrent assets held for sale — — — 7,374 — 7,374 Other noncurrent assets — — — 3,510 — 3,510 Total assets $ 31,173 $ 31,405 $ 41,763 $ 84,462 $ (125,624 ) $ 63,179 Liabilities and Equity Short-term debt $ — $ — $ — $ 1,078 $ — $ 1,078 Current portion of long-term debt — — — 628 — 628 Accounts payable 1 — — 3,999 — 4,000 Accrued compensation and benefits — — — 1,333 — 1,333 Liabilities held for sale — — — 4,276 — 4,276 Intercompany payables 3,873 — 2,315 18 (6,206 ) — Other current liabilities 3 2 32 4,979 — 5,016 Current liabilities 3,877 2 2,347 16,311 (6,206 ) 16,331 Long-term debt — — 2,413 8,640 — 11,053 Pension and postretirement benefits — — — 1,550 — 1,550 Intercompany loans payable 3,178 18,680 12,453 13,336 (47,647 ) — Noncurrent liabilities held for sale — — — 3,888 — 3,888 Other noncurrent liabilities — — 22 5,011 — 5,033 Long-term liabilities 3,178 18,680 14,888 32,425 (47,647 ) 21,524 Redeemable noncontrolling interest — — — 234 — 234 Ordinary shares 9 — — — — 9 Ordinary shares held in treasury (20 ) — — — — (20 ) Other shareholders' equity 24,129 12,723 24,528 34,520 (71,771 ) 24,129 Shareholders’ equity attributable to Johnson Controls 24,118 12,723 24,528 34,520 (71,771 ) 24,118 Nonredeemable noncontrolling interest — — — 972 — 972 Total equity 24,118 12,723 24,528 35,492 (71,771 ) 25,090 Total liabilities, redeemable noncontrolling interest and equity $ 31,173 $ 31,405 $ 41,763 $ 84,462 $ (125,624 ) $ 63,179 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Operating Activities Net cash provided by operating activities $ 11 $ — $ 639 $ 1,245 $ — $ 1,895 Investing Activities Capital expenditures — — — (1,249 ) — (1,249 ) Sale of property, plant and equipment — — — 32 — 32 Acquisition of business, net of cash acquired — — — 353 — 353 Business divestitures — — — 32 — 32 Changes in long-term investments — — 57 (105 ) — (48 ) Net change in intercompany loans — — 10 — (10 ) — Other — — — (7 ) — (7 ) Net cash provided (used) by investing activities — — 67 (944 ) (10 ) (887 ) Financing Activities Increase (decrease) in short-term debt - net — — (462 ) 1,018 — 556 Increase in long-term debt — — — 1,501 — 1,501 Repayment of long-term debt — — — (1,299 ) — (1,299 ) Debt financing costs — — — (45 ) — (45 ) Stock repurchases — — — (501 ) — (501 ) Payment of cash dividends — — — (915 ) — (915 ) Proceeds from the exercise of stock options 3 — — 67 — 70 Net intercompany loan borrowings — — — (10 ) 10 — Cash paid to acquire a noncontrolling interest — — — (2 ) — (2 ) Dividends paid to noncontrolling interests — — — (306 ) — (306 ) Other (3 ) — — 11 — 8 Net cash provided (used) in financing activities — — (462 ) (481 ) 10 (933 ) Effect of currency translation on cash — — — 12 — 12 Changes in cash held for sale — — — (61 ) — (61 ) Increase (decrease) in cash and cash equivalents 11 — 244 (229 ) — 26 Cash and cash equivalents at beginning of period — — — 553 — 553 Cash and cash equivalents at end of period $ 11 $ — $ 244 $ 324 $ — $ 579

Commitments and Contingencies (

Commitments and Contingencies (Notes)	12 Months Ended
	Sep. 30, 2016
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Environmental Matters The Company accrues for potential environmental liabilities when it is probable a liability has been incurred and the amount of the liability is reasonably estimable. As of September 30, 2016 , reserves for environmental liabilities for continuing operations totaled $51 million , of which $11 million was recorded within other current liabilities and $40 million was recorded within other noncurrent liabilities in the consolidated statements of financial position. Reserves for environmental liabilities for continuing operations totaled $20 million at September 30, 2015 . Such potential liabilities accrued by the Company do not take into consideration possible recoveries of future insurance proceeds. They do, however, take into account the likely share other parties will bear at remediation sites. It is difficult to estimate the Company’s ultimate level of liability at many remediation sites due to the large number of other parties that may be involved, the complexity of determining the relative liability among those parties, the uncertainty as to the nature and scope of the investigations and remediation to be conducted, the uncertainty in the application of law and risk assessment, the various choices and costs associated with diverse technologies that may be used in corrective actions at the sites, and the often quite lengthy periods over which eventual remediation may occur. Nevertheless, the Company does not currently believe that any claims, penalties or costs in connection with known environmental matters will have a material adverse effect on the Company’s financial position, results of operations or cash flows. In addition, the Company has identified asset retirement obligations for environmental matters that are expected to be addressed at the retirement, disposal, removal or abandonment of existing owned facilities. At September 30, 2016 and 2015 , the Company recorded conditional asset retirement obligations of $74 million and $59 million , respectively. Asbestos Matters The Company and certain of its subsidiaries, along with numerous other third parties, are named as defendants in personal injury lawsuits based on alleged exposure to asbestos containing materials. These cases have typically involved product liability claims based primarily on allegations of manufacture, sale or distribution of industrial products that either contained asbestos or were used with asbestos containing components. As of September 30, 2016, the Company's estimated asbestos related net liability for continuing operations recorded on a discounted basis within the Company's consolidated statements of financial position is $148 million . The net liability within the consolidated statements of financial position is comprised of a liability for pending and future claims and related defense costs of $548 million , of which $35 million is recorded in other current liabilities and $513 million is recorded in other noncurrent liabilities. The Company also maintains separate cash, investments and receivables related to insurance recoveries within the consolidated statements of financial position of $400 million , of which $41 million is recorded in other current assets, and $359 million is recorded in other noncurrent assets. Assets include $16 million of cash and $264 million of investments, which have all been designated as restricted. In connection with the recognition of liabilities for asbestos-related matters, the Company records asbestos-related insurance recoveries that are probable; the amount of such recoveries recorded at September 30, 2016 is $120 million . The Company believes that the asbestos related liabilities and insurance related receivables recorded as of September 30, 2016 are appropriate. As of September 30, 2015, the Company's estimated asbestos related net liability recorded on a discounted basis within the Company's consolidated statements of financial position is comprised of a liability for pending and future claims and related defense costs of $136 million and is primarily recorded in other noncurrent liabilities. There were no assets recorded related to the Company's asbestos obligations at September 30, 2015. The assets recorded in fiscal 2016 were as a result of assets acquired as part of the Tyco Merger. The Company's estimate of the liability and corresponding insurance recovery for pending and future claims and defense costs is based on the Company's historical claim experience, and estimates of the number and resolution cost of potential future claims that may be filed and is discounted to present value from 2069 (which is the Company's reasonable best estimate of the actuarially determined time period through which asbestos-related claims will be filed against Company affiliates). Asbestos related defense costs are included in the asbestos liability. The Company's legal strategy for resolving claims also impacts these estimates. The Company considers various trends and developments in evaluating the period of time (the look-back period) over which historical claim and settlement experience is used to estimate and value claims reasonably projected to be made through 2069. Annually, the Company assesses the sufficiency of its estimated liability for pending and future claims and defense costs by evaluating actual experience regarding claims filed, settled and dismissed, and amounts paid in settlements. In addition to claims and settlement experience, the Company considers additional quantitative and qualitative factors such as changes in legislation, the legal environment, and the Company's defense strategy. The Company also evaluates the recoverability of its insurance receivable on an annual basis. The Company evaluates all of these factors and determines whether a change in the estimate of its liability for pending and future claims and defense costs or insurance receivable is warranted. The amounts recorded by the Company for asbestos-related liabilities and insurance-related assets are based on the Company's strategies for resolving its asbestos claims, currently available information, and a number of estimates and assumptions. Key variables and assumptions include the number and type of new claims that are filed each year, the average cost of resolution of claims, the identity of defendants, the resolution of coverage issues with insurance carriers, amount of insurance, and the solvency risk with respect to the Company's insurance carriers. Many of these factors are closely linked, such that a change in one variable or assumption will impact one or more of the others, and no single variable or assumption predominately influences the determination of the Company's asbestos-related liabilities and insurance-related assets. Furthermore, predictions with respect to these variables are subject to greater uncertainty in the later portion of the projection period. Other factors that may affect the Company's liability and cash payments for asbestos-related matters include uncertainties surrounding the litigation process from jurisdiction to jurisdiction and from case to case, reforms of state or federal tort legislation and the applicability of insurance policies among subsidiaries. As a result, actual liabilities or insurance recoveries could be significantly higher or lower than those recorded if assumptions used in the Company's calculations vary significantly from actual results. Insurable Liabilities The Company records liabilities for its workers' compensation, product, general and auto liabilities. The determination of these liabilities and related expenses is dependent on claims experience. For most of these liabilities, claims incurred but not yet reported are estimated by utilizing actuarial valuations based upon historical claims experience. At September 30, 2016 and 2015, the insurable liabilities for continuing operations totaled $422 million and $138 million , respectively, of which $60 million and $19 million was recorded within other current liabilities, $28 million and $12 million was recorded within accrued compensation and benefits, and $334 million and $107 million was recorded within other noncurrent liabilities in the consolidated statements of financial position, respectively. The Company records receivables from third party insurers when recovery has been determined to be probable. The Company maintains captive insurance companies to manage certain of its insurable liabilities. The Company is involved in various lawsuits, claims and proceedings incident to the operation of its businesses, including those pertaining to product liability, environmental, safety and health, intellectual property, employment, commercial and contractual matters, and various other casualty matters. Although the outcome of litigation cannot be predicted with certainty and some lawsuits, claims or proceedings may be disposed of unfavorably to us, it is management’s opinion that none of these will have a material adverse effect on the Company’s financial position, results of operations or cash flows. Costs related to such matters were not material to the periods presented.

Related Party Transactions (Not

Related Party Transactions (Notes)	12 Months Ended
	Sep. 30, 2016
Related Party Transactions [Abstract]
Related Party Transactions Disclosure [Text Block]	RELATED PARTY TRANSACTIONS In the ordinary course of business, the Company enters into transactions with related parties, such as equity affiliates. Such transactions consist of facility management services, the sale or purchase of goods and other arrangements. The net sales to and purchases from related parties for continuing operations included in the consolidated statements of income were $879 million and $134 million , respectively, for fiscal 2016; $854 million and $63 million , respectively, for fiscal 2015; and $836 million and $60 million , respectively, for fiscal 2014. The following table sets forth the amount of accounts receivable due from and payable to related parties for continuing operations in the consolidated statements of financial position (in millions): September 30, 2016 2015 Receivable from related parties $ 66 $ 50 Payable to related parties 11 14 The Company has also provided financial support to certain of its VIE's, see Note 1, "Summary of Significant Accounting Policies," of the notes to consolidated financial statements for additional information.

Valuation and Qualifying Accoun

Valuation and Qualifying Accounts	12 Months Ended
	Sep. 30, 2016
Valuation and Qualifying Accounts [Abstract]
VALUATION AND QUALIFYING ACCOUNTS	JOHNSON CONTROLS INTERNATIONAL PLC AND SUBSIDIARIES SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (In millions) Year Ended September 30, 2016 2015 2014 Accounts Receivable - Allowance for Doubtful Accounts Balance at beginning of period $ 70 $ 64 $ 56 Provision charged to costs and expenses 45 27 40 Reserve adjustments (8 ) (5 ) (8 ) Accounts charged off (25 ) (16 ) (19 ) Acquisition of businesses 91 1 1 Currency translation — (1 ) (1 ) Transfers to held for sale — — (5 ) Balance at end of period $ 173 $ 70 $ 64 Deferred Tax Assets - Valuation Allowance Balance at beginning of period $ 1,151 $ 1,111 $ 1,046 Allowance provision for new operating and other loss carryforwards 121 23 121 Allowance provision benefits (331 ) 17 (56 ) Acquisition of businesses 2,459 — — Balance at end of period $ 3,400 $ 1,151 $ 1,111

Summary of Significant Accoun34

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Principles of Consolidation	Principles of Consolidation The consolidated financial statements include the consolidated accounts of Johnson Controls International plc and its subsidiaries. The financial statements have been prepared in United States dollars ("USD") and in accordance with generally accepted accounting principles in the United States ("U.S. GAAP"). All significant intercompany transactions have been eliminated. The results of companies acquired or disposed of during the year are included in the consolidated financial statements from the effective date of acquisition or up to the date of disposal. Investments in partially-owned affiliates are accounted for by the equity method when the Company’s interest exceeds 20% and the Company does not have a controlling interest. Under certain criteria as provided for in Financial Accounting Standards Board ("FASB") ASC 810, "Consolidation," the Company may consolidate a partially-owned affiliate. To determine whether to consolidate a partially-owned affiliate, the Company first determines if the entity is a variable interest entity ("VIE"). An entity is considered to be a VIE if it has one of the following characteristics: 1) the entity is thinly capitalized; 2) residual equity holders do not control the entity; 3) equity holders are shielded from economic losses or do not participate fully in the entity’s residual economics; or 4) the entity was established with non-substantive voting. If the entity meets one of these characteristics, the Company then determines if it is the primary beneficiary of the VIE. The party with the power to direct activities of the VIE that most significantly impact the VIE’s economic performance and the potential to absorb benefits or losses that could be significant to the VIE is considered the primary beneficiary and consolidates the VIE. If the entity is not considered a VIE, then the Company applies the voting interest model to determine whether or not the Company shall consolidate the partially-owned affiliate. Consolidated VIEs Based upon the criteria set forth in ASC 810, the Company has determined that it was the primary beneficiary in three VIEs for the reporting periods ended September 30, 2016 and 2015 , as the Company absorbs significant economics of the entities and has the power to direct the activities that are considered most significant to the entities. Two of the VIEs manufacture products in North America for the automotive industry. The Company funded the entities’ short-term liquidity needs through revolving credit facilities and had the power to direct the activities that were considered most significant to the entities through its key customer supply relationships. These VIE's were divested as a result of the Adient spin-off in the first quarter of fiscal 2017. In fiscal 2012, a pre-existing VIE accounted for under the equity method was reorganized into three separate investments as a result of the counterparty exercising its option to put its interest to the Company. The Company acquired additional interests in two of the reorganized group entities. The reorganized group entities are considered to be VIEs as the other owner party has been provided decision making rights but does not have equity at risk. The Company is considered the primary beneficiary of one of the entities due to the Company’s power pertaining to decisions over significant activities of the entity. As such, this VIE has been consolidated within the Company’s consolidated statements of financial position. The impact of consolidation of the entity on the Company’s consolidated statements of income for the years ended September 30, 2016 , 2015 and 2014 was not material. The VIE is named as a co-obligor under a third party debt agreement of $170 million , maturing in fiscal 2020, under which it could become subject to paying more than its allocated share of the third party debt in the event of bankruptcy of one or more of the other co-obligors. The other co-obligors, all related parties in which the Company is an equity investor, consist of the remaining group entities involved in the reorganization. As part of the overall reorganization transaction, the Company has also provided financial support to the group entities in the form of loans totaling $37 million , which are subordinate to the third party debt agreement. The Company is a significant customer of certain co-obligors, resulting in a remote possibility of loss. Additionally, the Company is subject to a floor guaranty expiring in fiscal 2022; in the event that the other owner party no longer owns any part of the group entities due to sale or transfer, the Company has guaranteed that the proceeds received from the sale or transfer will not be less than $25 million . The Company has partnered with the group entities to design and manufacture battery components for the Power Solutions business. The carrying amounts and classification of assets (none of which are restricted) and liabilities included in the Company’s consolidated statements of financial position for the consolidated VIEs are as follows (in millions): September 30, 2016 2015 Current assets $ 284 $ 281 Noncurrent assets 98 128 Total assets $ 382 $ 409 Current liabilities $ 230 $ 232 Noncurrent liabilities 29 34 Total liabilities $ 259 $ 266 The Company did not have a significant variable interest in any other consolidated VIEs for the presented reporting periods. Nonconsolidated VIEs As mentioned previously within the "Consolidated VIEs" section above, in fiscal 2012, a pre-existing VIE was reorganized into three separate investments as a result of the counterparty exercising its option to put its interest to the Company. The reorganized group entities are considered to be VIEs as the other owner party has been provided decision making rights but does not have equity at risk. The Company is not considered to be the primary beneficiary of two of the entities as the Company cannot make key operating decisions considered to be most significant to the VIEs. Therefore, the entities are accounted for under the equity method of accounting as the Company’s interest exceeds 20% and the Company does not have a controlling interest. The Company’s maximum exposure to loss includes the partially-owned affiliate investment balance of $59 million and $62 million at September 30, 2016 and 2015 , respectively, as well as the subordinated loan from the Company, third party debt agreement and floor guaranty mentioned previously within the "Consolidated VIEs" section above. Current liabilities due to the VIEs are not material and represent normal course of business trade payables for all presented periods. The Company did not have a significant variable interest in any other nonconsolidated VIEs for the presented reporting periods.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Fair Value of Financial Instruments	Fair Value of Financial Instruments The fair values of cash and cash equivalents, accounts receivable, short-term debt and accounts payable approximate their carrying values. See Note 10, "Derivative Instruments and Hedging Activities," and Note 11, "Fair Value Measurements," of the notes to consolidated financial statements for fair value of financial instruments, including derivative instruments, hedging activities and long-term debt.
Assets and Liabilities Held for Sale	Assets and Liabilities Held for Sale The Company classifies assets and liabilities (disposal groups) to be sold as held for sale in the period in which all of the following criteria are met: management, having the authority to approve the action, commits to a plan to sell the disposal group; the disposal group is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of such disposal groups; an active program to locate a buyer and other actions required to complete the plan to sell the disposal group have been initiated; the sale of the disposal group is probable, and transfer of the disposal group is expected to qualify for recognition as a completed sale within one year, except if events or circumstances beyond the Company's control extend the period of time required to sell the disposal group beyond one year; the disposal group is being actively marketed for sale at a price that is reasonable in relation to its current fair value; and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. In addition, the Company classifies disposal groups to be disposed of other than by sale (e.g. spin-off) as held for sale in the period the disposal occurs. The Company initially measures a disposal group that is classified as held for sale at the lower of its carrying value or fair value less any costs to sell. Any loss resulting from this measurement is recognized in the period in which the held for sale criteria are met. Conversely, gains are not recognized on the sale of a disposal group until the date of sale. The Company assesses the fair value of a disposal group less any costs to sell each reporting period it remains classified as held for sale and reports any subsequent changes as an adjustment to the carrying value of the disposal group, as long as the new carrying value does not exceed the carrying value of the disposal group at the time it was initially classified as held for sale. Upon determining that a disposal group meets the criteria to be classified as held for sale, the Company reports the assets and liabilities of the disposal group, if material, in the line items assets held for sale and liabilities held for sale in the consolidated statements of financial position. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less when purchased to be cash equivalents.
Receivables	Receivables Receivables consist of amounts billed and currently due from customers and unbilled costs and accrued profits related to revenues on long-term contracts that have been recognized for accounting purposes but not yet billed to customers. The Company extends credit to customers in the normal course of business and maintains an allowance for doubtful accounts resulting from the inability or unwillingness of customers to make required payments. The allowance for doubtful accounts is based on historical experience, existing economic conditions and any specific customer collection issues the Company has identified. The Company enters into supply chain financing programs to sell certain accounts receivable without recourse to third-party financial institutions. Sales of accounts receivable are reflected as a reduction of accounts receivable on the consolidated statements of financial position and the proceeds are included in cash flows from operating activities in the consolidated statements of cash flows.
Inventories	Inventories Inventories are stated at the lower of cost or market using the first-in, first-out ("FIFO") method. Finished goods and work-in-process inventories include material, labor and manufacturing overhead costs.
Pre-Production Costs Related to Long-Term Supply Arrangements
Property, Plant and Equipment	Property, plant and equipment are recorded at cost. Depreciation is provided over the estimated useful lives of the respective assets using the straight-line method for financial reporting purposes and accelerated methods for income tax purposes. The estimated useful lives generally range from 3 to 40 years for buildings and improvements, subscriber systems up to 15 years, and from 3 to 15 years for machinery and equipment. The Company capitalizes interest on borrowings during the active construction period of major capital projects. Capitalized interest is added to the cost of the underlying assets and is amortized over the useful lives of the assets.
Goodwill and Other Intangible Assets and Impairment of Long-Lived Assets	Goodwill and Indefinite-Lived Intangible Assets Goodwill reflects the cost of an acquisition in excess of the fair values assigned to identifiable net assets acquired. The Company reviews goodwill for impairment during the fourth fiscal quarter or more frequently if events or changes in circumstances indicate the asset might be impaired. The Company performs impairment reviews for its reporting units, which have been determined to be the Company’s reportable segments or one level below the reportable segments in certain instances, using a fair value method based on management’s judgments and assumptions or third party valuations. The fair value of a reporting unit refers to the price that would be received to sell the unit as a whole in an orderly transaction between market participants at the measurement date. In estimating the fair value, the Company uses multiples of earnings based on the average of historical, published multiples of earnings of comparable entities with similar operations and economic characteristics. In certain instances, the Company uses discounted cash flow analyses or estimated sales price to further support the fair value estimates. The inputs utilized in the analyses are classified as Level 3 inputs within the fair value hierarchy as defined in ASC 820, "Fair Value Measurement." The estimated fair value is then compared with the carrying amount of the reporting unit, including recorded goodwill. The Company is subject to financial statement risk to the extent that the carrying amount exceeds the estimated fair value. Refer to Note 7, "Goodwill and Other Intangible Assets," of the notes to consolidated financial statements for information regarding the goodwill impairment testing performed in the fourth quarters of fiscal years 2016 , 2015 and 2014 . Indefinite-lived intangible assets are also subject to at least annual impairment testing. Indefinite-lived intangible assets consist of trademarks and tradenames and are tested for impairment using a relief-from-royalty method. A considerable amount of management judgment and assumptions are required in performing the impairment tests. Impairment of Long-Lived Assets The Company reviews long-lived assets, including property, plant and equipment and other intangible assets with definite lives, for impairment whenever events or changes in circumstances indicate that the asset’s carrying amount may not be recoverable. The Company conducts its long-lived asset impairment analyses in accordance with ASC 360-10-15, "Impairment or Disposal of Long-Lived Assets." ASC 360-10-15 requires the Company to group assets and liabilities at the lowest level for which identifiable cash flows are largely independent of the cash flows of other assets and liabilities and evaluate the asset group against the sum of the undiscounted future cash flows. If the undiscounted cash flows do not indicate the carrying amount of the asset is recoverable, an impairment charge is measured as the amount by which the carrying amount of the asset group exceeds its fair value based on discounted cash flow analysis or appraisals. Refer to Note 17, "Impairment of Long-Lived Assets," of the notes to consolidated financial statements for information regarding the impairment testing performed in fiscal years 2016 , 2015 and 2014 .
Percentage-of-Completion Contracts/Revenue Recognition	Percentage-of-Completion Contracts The Buildings business records certain long-term contracts under the percentage-of-completion ("POC") method of accounting. Under this method, sales and gross profit are recognized as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. The Company records costs and earnings in excess of billings on uncompleted contracts primarily within accounts receivable and billings in excess of costs and earnings on uncompleted contracts primarily within other current liabilities in the consolidated statements of financial position. Costs and earnings in excess of billings related to these contracts were $841 million and $453 million at September 30, 2016 and 2015 , respectively. Billings in excess of costs and earnings related to these contracts were $431 million and $340 million at September 30, 2016 and 2015 , respectively. Revenue Recognition The Buildings business recognizes revenue from certain long-term contracts over the contractual period under the POC method of accounting. This method of accounting recognizes sales and gross profit as work is performed based on the relationship between actual costs incurred and total estimated costs at completion. Recognized revenues that will not be billed under the terms of the contract until a later date are recorded primarily in accounts receivable. Likewise, contracts where billings to date have exceeded recognized revenues are recorded primarily in other current liabilities. Changes to the original estimates may be required during the life of the contract and such estimates are reviewed monthly. Sales and gross profit are adjusted using the cumulative catch-up method for revisions in estimated total contract costs and contract values. Estimated losses are recorded when identified. Claims against customers are recognized as revenue upon settlement. The use of the POC method of accounting involves considerable use of estimates in determining revenues, costs and profits and in assigning the amounts to accounting periods. The periodic reviews have not resulted in adjustments that were significant to the Company’s results of operations. The Company continually evaluates all of the assumptions, risks and uncertainties inherent with the application of the POC method of accounting. The Buildings business enters into extended warranties and long-term service and maintenance agreements with certain customers. For these arrangements, revenue is recognized on a straight-line basis over the respective contract term. The Buildings business also sells certain heating, ventilating and air conditioning ("HVAC") and refrigeration products and services in bundled arrangements, where multiple products and/or services are involved. Significant deliverables within these arrangements include equipment, commissioning, service labor and extended warranties. Approximately four to twelve months separate the timing of the first deliverable until the last piece of equipment is delivered, and there may be extended warranty arrangements with duration of one to five years commencing upon the end of the standard warranty period. In addition, the Building's business sells security monitoring systems that may have multiple elements, including equipment, installation, monitoring services and maintenance agreements. Revenues associated with sale of equipment and related installations are recognized once delivery, installation and customer acceptance is completed, while the revenue for monitoring and maintenance services are recognized as services are rendered. In accordance with ASU No. 2009-13, "Revenue Recognition (Topic 605): Multiple-Deliverable Revenue Arrangements - A Consensus of the FASB Emerging Issues Task Force," the Company divides bundled arrangements into separate deliverables and revenue is allocated to each deliverable based on the relative selling price method. In order to estimate relative selling price, market data and transfer price studies are utilized. Revenue recognized for security monitoring equipment and installation is limited to the lesser of their allocated amounts under the estimated selling price hierarchy or the non-contingent up-front consideration received at the time of installation, since collection of future amounts under the arrangement with the customer is contingent upon the delivery of monitoring and maintenance services. For transactions in which the Company retains ownership of the subscriber system asset, fees for monitoring and maintenance services are recognized on a straight-line basis over the contract term. Non-refundable fees received in connection with the initiation of a monitoring contract, along with associated direct and incremental selling costs, are deferred and amortized over the estimated life of the customer relationship. In all other cases, the Company recognizes revenue at the time title passes to the customer or as services are performed.
Subscriber System Assets, Dealer Intangibles and Related Deferred Revenue Accounts [Policy Text Block]	Subscriber System Assets, Dealer Intangibles and Related Deferred Revenue Accounts The Tyco portion of the Buildings business considers assets related to the acquisition of new customers in its electronic security business in three asset categories: internally generated residential subscriber systems outside of North America, internally generated commercial subscriber systems (collectively referred to as subscriber system assets) and customer accounts acquired through the ADT dealer program, primarily outside of North America (referred to as dealer intangibles). Subscriber system assets include installed property, plant and equipment for which the Company retains ownership and deferred costs directly related to the customer acquisition and system installation. Subscriber system assets represent capitalized equipment (e.g. security control panels, touchpad, motion detectors, window sensors, and other equipment) and installation costs associated with electronic security monitoring arrangements under which the Company retains ownership of the security system assets in a customer's place of business, or outside of North America, residence. Installation costs represent costs incurred to prepare the asset for its intended use. The Company pays property taxes on the subscriber system assets and upon customer termination, may retrieve such assets. These assets embody a probable future economic benefit as they generate future monitoring revenue for the Company. Costs related to the subscriber system equipment and installation are categorized as property, plant and equipment rather than deferred costs. Deferred costs associated with subscriber system assets represent direct and incremental selling expenses (such as commissions) related to acquiring the customer. Commissions related to up-front consideration paid by customers in connection with the establishment of the monitoring arrangement are determined based on a percentage of the up-front fees and do not exceed deferred revenue. Such deferred costs are recorded as other current and noncurrent assets within the consolidated statements of financial position. Subscriber system assets and any deferred revenue resulting from the customer acquisition are accounted for over the expected life of the subscriber. In certain geographical areas where the Company has a large number of customers that behave in a similar manner over time, the Company accounts for subscriber system assets and related deferred revenue using pools, with separate pools for the components of subscriber system assets and any related deferred revenue based on the same month and year of acquisition. The Company depreciates its pooled subscriber system assets and related deferred revenue using a straight-line method with lives up to 15 years and considering customer attrition. The Company uses a straight-line method with a 15 -year life for non-pooled subscriber system assets (primarily in Europe, Latin America and Asia) and related deferred revenue, with remaining balances written off upon customer termination. Certain contracts and related customer relationships result from purchasing residential security monitoring contracts from an external network of independent dealers who operate under the ADT dealer program, primarily outside of North America. Acquired contracts and related customer relationships are recorded at their contractually determined purchase price. During the first 6 months ( 12 months in certain circumstances) after the purchase of the customer contract, any cancellation of monitoring service, including those that result from customer payment delinquencies, results in a chargeback by the Company to the dealer for the full amount of the contract purchase price. The Company records the amount charged back to the dealer as a reduction of the previously recorded intangible asset. Intangible assets arising from the ADT dealer program described above are amortized in pools determined by the same month and year of contract acquisition on a straight-line basis over the period of the customer relationship. The estimated useful life of dealer intangibles ranges from 12 to 15 years.
Research and Development Costs	Research and Development Costs Expenditures for research activities relating to product development and improvement are charged against income as incurred and included within selling, general and administrative expenses for continuing operations in the consolidated statements of income. Such expenditures for the years ended September 30, 2016 , 2015 and 2014 were $158 million , $134 million and $125 million , respectively.
Earnings Per Share	Earnings Per Share The Company presents both basic and diluted earnings per share ("EPS") amounts. Basic EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of common shares outstanding during the reporting period. Diluted EPS is calculated by dividing net income attributable to Johnson Controls by the weighted average number of common shares and common equivalent shares outstanding during the reporting period that are calculated using the treasury stock method for stock options and unvested restricted stock. See Note 13, "Earnings per Share," of the notes to consolidated financial statements for the calculation of earnings per share.
Foreign Currency Translation	Foreign Currency Translation Substantially all of the Company’s international operations use the respective local currency as the functional currency. Assets and liabilities of international entities have been translated at period-end exchange rates, and income and expenses have been translated using average exchange rates for the period. Monetary assets and liabilities denominated in non-functional currencies are adjusted to reflect period-end exchange rates. The aggregate transaction losses, net of the impact of foreign currency hedges, included in net income for the years ended September 30, 2016 , 2015 and 2014 were $95 million , $119 million and $8 million , respectively.
Derivative Financial Instruments	Derivative Financial Instruments The Company has written policies and procedures that place all financial instruments under the direction of Corporate treasury and restrict all derivative transactions to those intended for hedging purposes. The use of financial instruments for speculative purposes is strictly prohibited. The Company selectively uses financial instruments to manage the market risk from changes in foreign exchange rates, commodity prices, stock-based compensation liabilities and interest rates. The fair values of all derivatives are recorded in the consolidated statements of financial position. The change in a derivative’s fair value is recorded each period in current earnings or accumulated other comprehensive income ("AOCI"), depending on whether the derivative is designated as part of a hedge transaction and if so, the type of hedge transaction. See Note 10, "Derivative Instruments and Hedging Activities," and Note 11, "Fair Value Measurements," of the notes to consolidated financial statements for disclosure of the Company’s derivative instruments and hedging activities.
Investments	Investments The Company invests in debt and equity securities which are classified as available for sale and are marked to market at the end of each accounting period. Unrealized gains and losses on these securities, other than the deferred compensation plan assets, are recognized in accumulated other comprehensive loss within the consolidated statement of shareholders' equity unless an unrealized loss is deemed to be other than temporary, in which case such loss is charged to earnings. The deferred compensation plan assets are marked to market at the end of each accounting period and all unrealized gains and losses are recorded in the consolidated statements of income.
Pension and Postretirement Benefits	Pension and Postretirement Benefits The Company utilizes a mark-to-market approach for recognizing pension and postretirement benefit expenses, including measuring the market related value of plan assets at fair value and recognizing actuarial gains and losses in the fourth quarter of each fiscal year or at the date of a remeasurement event. Refer to Note 15, "Retirement Plans," of the notes to consolidated financial statements for disclosure of the Company's pension and postretirement benefit plans.
Loss Contingencies	Loss Contingencies Accruals are recorded for various contingencies including legal proceedings, environmental matters, self-insurance and other claims that arise in the normal course of business. The accruals are based on judgment, the probability of losses and, where applicable, the consideration of opinions of internal and/or external legal counsel and actuarially determined estimates. Additionally, the Company records receivables from third party insurers when recovery has been determined to be probable. The Company is subject to laws and regulations relating to protecting the environment. The Company provides for expenses associated with environmental remediation obligations when such amounts are probable and can be reasonably estimated. Refer to Note 23, "Commitments and Contingencies," of the notes to consolidated financial statements. The Company records liabilities for its workers' compensation, product, general and auto liabilities. The determination of these liabilities and related expenses is dependent on claims experience. For most of these liabilities, claims incurred but not yet reported are estimated by utilizing actuarial valuations based upon historical claims experience. The Company records receivables from third party insurers when recovery has been determined to be probable. The Company maintains captive insurance companies to manage certain of its insurable liabilities. Asbestos-Related Contingencies and Insurance Receivables The Company and certain of its subsidiaries along with numerous other companies are named as defendants in personal injury lawsuits based on alleged exposure to asbestos-containing materials. The Company's estimate of the liability and corresponding insurance recovery for pending and future claims and defense costs is based on the Company's historical claim experience, and estimates of the number and resolution cost of potential future claims that may be filed and is discounted to present value from 2069 (which is the Company's reasonable best estimate of the actuarially determined time period through which asbestos-related claims will be filed against Company affiliates). Asbestos related defense costs are included in the asbestos liability. The Company's legal strategy for resolving claims also impacts these estimates. The Company considers various trends and developments in evaluating the period of time (the look-back period) over which historical claim and settlement experience is used to estimate and value claims reasonably projected to be made through 2069. Annually, the Company assesses the sufficiency of its estimated liability for pending and future claims and defense costs by evaluating actual experience regarding claims filed, settled and dismissed, and amounts paid in settlements. In addition to claims and settlement experience, the Company considers additional quantitative and qualitative factors such as changes in legislation, the legal environment, and the Company's defense strategy. The Company also evaluates the recoverability of its insurance receivable on an annual basis. The Company evaluates all of these factors and determines whether a change in the estimate of its liability for pending and future claims and defense costs or insurance receivable is warranted. In connection with the recognition of liabilities for asbestos-related matters, the Company records asbestos-related insurance recoveries that are probable. The Company's estimate of asbestos-related insurance recoveries represents estimated amounts due to the Company for previously paid and settled claims and the probable reimbursements relating to its estimated liability for pending and future claims discounted to present value. In determining the amount of insurance recoverable, the Company considers available insurance, allocation methodologies, solvency and creditworthiness of the insurers. Refer to Note 23, "Commitments and Contingencies," of the notes to consolidated financial statements for a discussion on management's judgments applied in the recognition and measurement of asbestos-related assets and liabilities.
Income Tax	Income Taxes Deferred tax liabilities and assets are recognized for the expected future tax consequences of events that have been reflected in the consolidated financial statements. Deferred tax liabilities and assets are determined based on the differences between the book and tax bases of particular assets and liabilities and operating loss carryforwards, using tax rates in effect for the years in which the differences are expected to reverse. A valuation allowance is provided to offset deferred tax assets if, based upon the available evidence, including consideration of tax planning strategies, it is more-likely-than-not that some or all of the deferred tax assets will not be realized. Refer to Note 18, "Income Taxes," of the notes to consolidated financial statements.
Retrospective Changes	Retrospective Changes During the first quarter of fiscal 2017, the Company determined that its Automotive Experience business ("Adient") met the criteria to be classified as a discontinued operation, which required retrospective application to financial information for all periods presented. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's discontinued operations. In the first quarter of fiscal 2017, the Company began evaluating the performance of its business segments primarily on segment earnings before interest, taxes and amortization ("EBITA"), which represents income from continuing operations before income taxes and noncontrolling interests, excluding general corporate expenses, intangible asset amortization, net financing charges, significant restructuring and impairment costs, and the net mark-to-market adjustments related to pension and postretirement plans. Historical information has been revised to present the comparable periods on a consistent basis. In April 2015, the FASB issued Accounting Standards Update ("ASU") No. 2015-03, "Interest - Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs." ASU No. 2015-03 requires 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 liability. During the quarter ended December 31, 2016, the Company adopted ASU No. 2015-03 and applied the change retrospectively to all periods presented. This change did not have an impact to any period presented on the consolidated statements of income. The financial statement impact of this change for the period ending September 30, 2016 was a decrease to noncurrent assets held for sale of $44 million , a decrease to noncurrent liabilities held for sale of $44 million , a decrease to other noncurrent assets of $30 million and a decrease to long-term debt of $30 million . The financial statement impact of this change for the period ending September 30, 2015 was a decrease to other noncurrent assets of $32 million and a decrease to long-term debt of $32 million . In May 2015, the FASB issued ASU No. 2015-07, "Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)." ASU No. 2015-07 removes the requirement to categorize within the fair value hierarchy all investments for which fair value is measured using the net asset value per share practical expedient. Such investments should be disclosed separate from the fair value hierarchy. ASU No. 2015-07 was effective retrospectively for the Company for the quarter ending December 31, 2016. The adoption of this guidance did not have an impact on the Company's consolidated financial statements, but did impact pension asset disclosures. In the fourth quarter of fiscal 2016, the Company changed its accounting policy for accruing for defense costs related to asbestos claims on a discounted basis. The Company’s historical accounting treatment for asbestos claim defense costs was to accrue as incurred. The new policy is to record an accrual for all future asbestos related defense costs which are determined to be probable and estimable of being incurred. The Company believes this new policy is preferable as it better reflects the economics of settlement of the Company's asbestos claims, improves comparability among the Company’s peer group and provides greater transparency to on-going operating results. These changes have been reported through retrospective application of the new policy to all periods presented. These changes did not have an impact to any period presented on the consolidated statements of income. The financial statement impact of this change for all periods presented was an increase to other noncurrent liabilities of $68 million , an increase to other noncurrent assets of $27 million and a decrease to retained earnings of $41 million . In September 2016, as a result of the Tyco Merger and further discussed within Note 2, "Merger Transaction," of the notes to consolidated financial statements, each outstanding share of common stock, par value $1.00 per share, of JCI Inc. common stock (other than shares held by JCI Inc., Tyco and certain of their subsidiaries) was converted into the right to receive either a cash consideration or a share consideration. As a result, the par value of the Company’s ordinary shares is $0.01 . This change resulted in a decrease to ordinary shares and corresponding increase in capital in excess of par value in the consolidated statements of financial position and is reported through retrospective application of the new par value for all periods presented.
New Accounting Pronouncements	New Accounting Pronouncements Recently Adopted Accounting Pronouncements In October 2016, the FASB issued ASU No. 2016-17, "Consolidations (Topic 810): Interests Held through Related Parties that are under Common Control." The ASU changes how a single decision maker of a variable interest entity ("VIE") that holds indirect interest in the entity through related parties that are under common control determines whether it is the primary beneficiary of the VIE. The new guidance amends ASU 2015-02, "Consolidation (Topic 810): Amendments to the Consolidation Analysis" issued in February 2015. ASU 2016-17 was effective retrospectively for the Company for the quarter ending December 31, 2016. The adoption of this guidance did not have an impact on the Company's consolidated financial statements. In November 2015, the FASB issued ASU No. 2015-17, "Income Taxes (Topic 740): Balance Sheet Classification of Deferred Taxes." ASU No. 2015-17 requires that deferred tax liabilities and assets be classified as noncurrent in the consolidated statements of financial position. During the quarter ended December 31, 2015, the Company early adopted ASU No. 2015-17 and applied the change retrospectively to all periods presented. Historical information was already revised throughout these financial statements to reflect the adoption of ASU No. 2015-17 within the Company's recasted consolidated financial statements and notes to consolidated financial statement for the year ended September 30, 2015 in the Company's Current Report on Form 8-K filed with the Securities and Exchange Commission (the "SEC") on March 3, 2016. In February 2015, the FASB issued ASU No. 2015-02, "Consolidation (Topic 810): Amendments to the Consolidation Analysis." ASU No. 2015-02 amends the analysis performed to determine whether a reporting entity should consolidate certain types of legal entities. ASU No. 2015-02 was effective retrospectively for the Company for the quarter ending December 31, 2016. The adoption of this guidance did not have an impact on the Company's consolidated financial statements. In April 2014, the FASB issued ASU No. 2014-08, "Presentation of Financial Statements (Topic 205) and Property, Plant and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity." ASU No. 2014-08 limits discontinued operations reporting to situations where the disposal represents a strategic shift that has (or will have) a major effect on an entity’s operations and financial results, and requires expanded disclosures for discontinued operations. ASU No. 2014-08 was effective for the Company for the quarter ended December 31, 2015. The adoption of this guidance did not have any impact on the Company's consolidated financial statements as there were no dispositions or disposals during the quarter ended December 31, 2015. Recently Issued Accounting Pronouncements In October 2016, the FASB issued ASU No. 2016-16, "Accounting for Income Taxes: Intra-Entity Asset Transfers of Assets Other than Inventory". The ASU requires the tax effects of all intra-entity sales of assets other than inventory to be recognized in the period in which the transaction occurs. The guidance will be effective for the Company for the quarter ending December 31, 2018 with early adoption permitted but only in the first interim period of a fiscal year. The changes are required to be applied by means of a cumulative-effect adjustment recorded in retained earnings as of the beginning of the fiscal year of adoption. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements. In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments." ASU No. 2016-15 provides clarification guidance on eight specific cash flow presentation issues in order to reduce the diversity in practice. ASU No. 2016-15 will be effective for the Company for the quarter ending December 31, 2018, with early adoption permitted. The guidance should be applied retrospectively to all periods presented, unless deem impracticable, in which case prospective application is permitted. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements. In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." ASU No. 2016-13 changes the impairment model for financial assets measured at amortized cost, requiring presentation at the net amount expected to be collected. The measurement of expected credit losses is based upon historical experience, current conditions, and reasonable and supportable forecasts. Available-for-sale debt securities with unrealized losses will now be recorded through an allowance for credit losses. ASU No. 2016-13 will be effective for the Company for the quarter ended December 31, 2020, with early adoption permitted for the quarter ended December 31, 2019. The adoption of this guidance is not expected to have a significant impact on the Company's consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-09, "Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting." ASU No. 2016-09 impacts certain aspects of the accounting for share-based payment transactions, including income tax consequences, classification of awards as either equity or liabilities, and classification on the statements of cash flows. ASU No. 2016-09 will be effective for the Company for the quarter ending December 31, 2017, with early adoption permitted. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements. In March 2016, the FASB issued ASU No. 2016-07, "Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting." ASU No. 2016-07 eliminates the requirement for an investment that qualifies for the use of the equity method of accounting as a result of an increase in the level of ownership or degree of influence to adjust the investment, results of operations and retained earnings retrospectively. ASU No. 2016-07 will be effective prospectively for the Company for increases in the level of ownership interest or degree of influence that result in the adoption of the equity method that occur during or after the quarter ending December 31, 2017, with early adoption permitted. The impact of this guidance for the Company is dependent on any future increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)." ASU No. 2016-02 requires recognition of operating leases as lease assets and liabilities on the balance sheet, and disclosure of key information about leasing arrangements. ASU No. 2016-02 will be effective retrospectively for the Company for the quarter ending December 31, 2019, with early adoption permitted. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements. In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities." ASU No. 2016-01 amends certain aspects of recognition, measurement, presentation and disclosure of financial instruments. ASU No. 2016-01 will be effective for the Company for the quarter ending December 31, 2018, and early adoption is not permitted, with certain exceptions. The changes are required to be applied by means of a cumulative-effect adjustment on the balance sheet as of the beginning of the fiscal year of adoption. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements. In July 2015, the FASB issued ASU No. 2015-11, "Simplifying the Measurement of Inventory." ASU No. 2015-11 requires inventory that is recorded using the first-in, first-out method to be measured at the lower of cost or net realizable value. ASU No. 2015-11 will be effective prospectively for the Company for the quarter ending December 31, 2017, with early adoption permitted. The adoption of this guidance is not expected to have a significant impact on the Company's consolidated financial statements. In May 2014, the FASB issued ASU No. 2014-09, "Revenue from Contracts with Customers (Topic 606)." ASU No. 2014-09 clarifies the principles for recognizing revenue when an entity either enters into a contract with customers to transfer goods or services or enters into a contract for the transfer of non-financial assets. The original standard was effective retrospectively for the Company for the quarter ending December 31, 2017; however in August 2015, the FASB issued ASU No. 2015-14, "Revenue from Contracts with Customers (Topic 606): Deferral of the Effective Date," which defers the effective date of ASU No. 2014-09 by one-year for all entities. The new standard will become effective retrospectively for the Company for the quarter ending December 31, 2018, with early adoption permitted, but not before the original effective date. Additionally, in March 2016, the FASB issued ASU No. 2016-08, "Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations (Reporting Revenue Gross versus Net)," in April 2016, the FASB issued ASU No. 2016-10, "Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing," and in May 2016, the FASB issued ASU No. 2016-12, "Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients," all of which provide additional clarification on certain topics addressed in ASU No. 2014-09. ASU No. 2016-08, ASU No. 2016-10 and ASU No. 2016-12 follow the same implementation guidelines as ASU No. 2014-09 and ASU No. 2015-14. The Company is currently assessing the impact adoption of this guidance will have on its consolidated financial statements.

Summary of Significant Accoun35

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Sep. 30, 2016
Accounting Policies [Abstract]
Carrying Amounts and Classification of Assets and Liabilities for Consolidated VIE's	The carrying amounts and classification of assets (none of which are restricted) and liabilities included in the Company’s consolidated statements of financial position for the consolidated VIEs are as follows (in millions): September 30, 2016 2015 Current assets $ 284 $ 281 Noncurrent assets 98 128 Total assets $ 382 $ 409 Current liabilities $ 230 $ 232 Noncurrent liabilities 29 34 Total liabilities $ 259 $ 266

Merger Transaction (Tables)

Merger Transaction (Tables)	12 Months Ended
	Sep. 30, 2016
Merger Transaction [Abstract]
Schedule of Fair Value of Consideration Transferred [Table Text Block]	The following table summarizes the total fair value of consideration transferred: (in millions, except for share consolidation ratio and share data) Number of Tyco shares outstanding at September 2, 2016 427,181,743 Tyco share consolidation ratio 0.955 Tyco ordinary shares outstanding following the share consolidation and immediately prior to the merger 407,958,565 JCI Inc. converted share price (1) $ 47.67 Fair value of equity portion of the merger consideration $ 19,447 Fair value of Tyco equity awards 224 Total fair value of consideration transferred $ 19,671 (1) Amount equals JCI Inc. closing share price and market capitalization at September 2, 2016 ( $45.45 and $29,012 million , respectively) adjusted for the Tyco $3,864 million cash contribution used to purchase 110.8 million shares of JCI Inc. common stock for $34.88 per share.
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The preliminary fair values of the assets acquired and liabilities assumed are as follows (in millions): Cash and cash equivalents $ 489 Accounts receivable 1,648 Inventories 829 Other current assets 1,062 Property, plant, and equipment - net 1,224 Goodwill 16,363 Intangible assets - net 6,203 Other noncurrent assets 560 Total assets acquired $ 28,378 Short-term debt $ 462 Accounts payable 711 Accrued compensation and benefits 305 Other current liabilities 1,608 Long-term debt 6,416 Long-term deferred tax liabilities 1,173 Long-term pension and postretirement benefits 774 Other noncurrent liabilities 1,088 Total liabilities acquired $ 12,537 Noncontrolling interests 34 Net assets acquired $ 15,807 Cash consideration paid to JCI Inc. shareholders 3,864 Total fair value of consideration transferred $ 19,671
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	The preliminary purchase price allocation to identifiable intangible assets acquired are as follows: Preliminary Fair Value (in millions) Weighted Average Life (in years) Customer relationships $ 2,280 11 Completed technology 1,530 10 Other definite-lived intangibles 223 8 Indefinite-lived trademarks 2,020 Other indefinite-lived intangibles 90 In-process research and development 60 Total identifiable intangible assets $ 6,203
Business Acquisition, Pro Forma Information [Table Text Block]	The following unaudited pro forma information assumes the acquisition had occurred on October 1, 2014, and had been included in the Company's consolidated statements of income for fiscal years 2016 and 2015 . Year Ended September 30, (in millions) 2016 2015 Pro forma net sales $ 29,647 $ 26,908 Pro forma net income from continuing operations 1,143 848

Discontinued Operations Discont

Discontinued Operations Discontinued Operations (Tables)	12 Months Ended
	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Adient discontinued operations cash flow [Table Text Block]	The following table summarizes depreciation and amortization, capital expenditures, and significant operating and investing non-cash items related to Adient for the fiscal years ended September 30, 2016, 2015 and 2014 (in millions): Year Ended 2016 2015 2014 Depreciation and amortization $ 331 $ 333 $ 428 Pension and postretirement benefit expense 113 15 63 Equity in earnings of partially-owned affiliates (357 ) (295 ) (285 ) Deferred income taxes (476 ) (50 ) (90 ) Non-cash restructuring and impairment costs 87 27 52 (Gain) loss on divestitures — (155 ) 86 Equity-based compensation 16 16 14 Other (2 ) (4 ) 3 Capital expenditures (395 ) (455 ) (538 )
Adient spin-off [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	The following table summarizes the results of Adient, reclassified as discontinued operations for the fiscal years ended September 30, 2016, 2015 and 2014 (in millions): Year Ended September 30, 2016 2015 2014 Net sales $ 16,837 $ 20,079 $ 22,032 Income from discontinued operations before income taxes 525 1,220 879 Provision for income taxes on discontinued operations 2,041 529 314 Income from discontinued operations attributable to noncontrolling interests, net of tax 84 66 67 Income (loss) from discontinued operations $ (1,600 ) $ 625 $ 498
Global Workplace Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	The following table summarizes the results of GWS, reclassified as discontinued operations for the fiscal years ended September 30, 2015 and 2014 (in millions): Year Ended September 30, 2015 2014 Net sales $ 3,025 $ 4,079 Income from discontinued operations before income taxes 1,203 119 Provision for income taxes on discontinued operations 1,075 75 Income from discontinued operations attributable to noncontrolling interests, net of tax 4 15 Income from discontinued operations $ 124 $ 29
Automotive Experience Electronics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures [Table Text Block]	There were no amounts related to the Automotive Experience Electronics business classified as discontinued operations for the fiscal years ended September 30, 2016 and 2015. The following table summarizes the results of the Automotive Experience Electronics business, classified as discontinued operations for the fiscal years ended September 30, 2014 (in millions): Year Ended September 30, 2014 Net sales $ 1,027 Loss from discontinued operations before income taxes (8 ) Provision for income taxes on discontinued operations 202 Income from discontinued operations attributable to noncontrolling interests, net of tax 8 Loss from discontinued operations $ (218 )

Discontinued Operations Assets

Discontinued Operations Assets and Liabilities Held for Sale (Tables)	12 Months Ended
	Sep. 30, 2016
Assets and Liabilities Held for Sale [Line Items]
Adient assets and liabilities held for sale [Table Text Block]	The following table summarizes the carrying value of Adient, reclassified as assets and liabilities held for sale at September 30, 2016 and 2015 (in millions): September 30, 2016 September 30, 2015 Cash $ 105 $ 44 Cash in escrow related to Adient debt 2,034 — Accounts receivable - net 2,071 2,134 Inventories 672 712 Other current assets 756 814 Assets held for sale $ 5,638 $ 3,704 Property, plant and equipment - net $ 2,240 $ 2,187 Goodwill 2,385 2,364 Other intangible assets - net 113 129 Investments in partially-owned affiliates 1,745 1,646 Other noncurrent assets 891 528 Noncurrent assets held for sale $ 7,374 $ 6,854 Short-term debt $ 41 $ 17 Current portion of long-term debt 38 7 Accounts payable 2,764 2,594 Accrued compensation and benefits 430 392 Other current liabilities 975 946 Liabilities held for sale $ 4,248 $ 3,956 Long-term debt $ 3,441 $ 346 Pension and postretirement benefits 188 118 Other noncurrent liabilities 259 364 Noncurrent liabilities held for sale $ 3,888 $ 828
Assets and Liabilities Held for Sale, Specific Transactions [Table Text Block]	The following table summarizes the carrying value of the Tyco assets and liabilities held for sale at September 30, 2016 (in millions): Accounts receivable - net $ 9 Inventories 7 Other current assets 3 Property, plant and equipment - net 15 Goodwill 89 Other intangible assets - net 30 Other noncurrent assets 4 Assets held for sale $ 157 Accounts payable $ 9 Other current liabilities 19 Liabilities held for sale $ 28

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Sep. 30, 2016
Inventory Disclosure [Abstract]
Inventories	Inventories consisted of the following (in millions): September 30, 2016 2015 Raw materials and supplies $ 852 $ 534 Work-in-process 503 329 Finished goods 1,533 802 Inventories $ 2,888 $ 1,665

Property, Plant and Equipment40

Property, Plant and Equipment (Tables)	12 Months Ended
	Sep. 30, 2016
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment consisted of the following (in millions): September 30, 2016 2015 Buildings and improvements $ 2,107 $ 1,767 Subscriber systems 448 — Machinery and equipment 5,137 4,151 Construction in progress 990 653 Land 367 183 Total property, plant and equipment 9,049 6,754 Less: accumulated depreciation (3,417 ) (3,071 ) Property, plant and equipment - net $ 5,632 $ 3,683

Goodwill and Other Intangible41

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Sep. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Carrying Amount of Goodwill	The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the fiscal years ended September 30, 2016 and 2015 were as follows (in millions): September 30, 2014 Business Acquisitions Business Divestitures Currency Translation and Other September 30, 2015 Building Efficiency Systems and Service North America $ 982 $ — $ (2 ) $ (2 ) $ 978 Products North America 1,688 34 (14 ) (7 ) 1,701 Asia 414 — — (25 ) 389 Rest of World 345 — — (35 ) 310 Power Solutions 1,142 — — (60 ) 1,082 Total $ 4,571 $ 34 $ (16 ) $ (129 ) $ 4,460 September 30, 2015 Business Acquisitions Business Divestitures Currency Translation and Other September 30, 2016 Buildings Building Efficiency Systems and Service North America $ 978 $ — $ (3 ) $ — $ 975 Products North America 1,701 — (3 ) (1 ) 1,697 Asia 389 253 — 15 657 Rest of World 310 5 (13 ) (1 ) 301 Tyco — 16,364 — (56 ) 16,308 Power Solutions 1,082 — — 4 1,086 Total $ 4,460 $ 16,622 $ (19 ) $ (39 ) $ 21,024
Other Intangible Assets	The Company’s other intangible assets, primarily from business acquisitions valued based on independent appraisals, consisted of (in millions): September 30, 2016 September 30, 2015 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Technology $ 1,528 $ (24 ) $ 1,504 $ 53 $ (48 ) $ 5 Customer relationships 3,168 (226 ) 2,942 875 (168 ) 707 Miscellaneous 519 (130 ) 389 236 (103 ) 133 Total amortized intangible assets 5,215 (380 ) 4,835 1,164 (319 ) 845 Unamortized intangible assets Trademarks/trade names 2,555 — 2,555 542 — 542 Miscellaneous 150 — 150 — — — 2,705 — 2,705 542 — 542 Total intangible assets $ 7,920 $ (380 ) $ 7,540 $ 1,706 $ (319 ) $ 1,387

Leases (Tables)

Leases (Tables)	12 Months Ended
	Sep. 30, 2016
Leases [Abstract]
Future Minimum Capital and Operating Lease Payments and Related Present Value of Capital Lease Payments	Future minimum capital and operating lease payments and the related present value of capital lease payments for continuing and discontinued operations at September 30, 2016 were as follows (in millions): Capital Leases Operating Leases 2017 $ 5 $ 406 2018 4 310 2019 3 227 2020 3 156 2021 3 98 After 2021 12 155 Total minimum lease payments 30 $ 1,352 Interest (6 ) Present value of net minimum lease payments $ 24

Debt and Financing Arrangemen43

Debt and Financing Arrangements (Tables)	12 Months Ended
	Sep. 30, 2016
Debt Disclosure [Abstract]
Short-Term Debt	Short-term debt consisted of the following (in millions): September 30, 2016 2015 Bank borrowings and commercial paper $ 1,078 $ 35 Weighted average interest rate on short-term debt outstanding 1.1 % 4.0 %
Long-Term Debt	Long-term debt consisted of the following (in millions; due dates by fiscal year): September 30, 2016 2015 Unsecured notes JCI Inc. - 5.5% due in 2016 ($800 million par value) — 800 JCI Inc. - 7.125% due in 2017 ($150 million par value) 149 153 JCI Inc. - 2.6% due in 2017 ($400 million par value) 404 404 JCI Inc. - 2.355% due in 2017 ($46 million par value) 46 46 JCI Inc. - 1.4% due in 2018 ($300 million par value) 301 303 JCI Inc. - 5.0% due in 2020 ($500 million par value) 499 499 JCI Inc. - 4.25% due 2021 ($500 million par value) 498 498 JCI Inc. - 3.75% due in 2022 ($450 million par value) 448 448 JCI Inc. - 3.625% due in 2024 ($500 million par value) 500 500 JCI Inc. - 6.0% due in 2036 ($400 million par value) 396 395 JCI Inc. - 5.7% due in 2041 ($300 million par value) 299 299 JCI Inc. - 5.25% due in 2042 ($250 million par value) 250 250 JCI Inc. - 4.625% due in 2044 ($450 million par value) 447 447 JCI Inc. - 6.95% due in 2046 ($125 million par value) 125 125 JCI Inc. - 4.95% due in 2064 ($450 million par value) 449 449 Tyco International Finance S.A. ("TIFSA") - 3.75% due in 2018 ($67 million par value) 69 — TIFSA - 4.625% due in 2023 ($42 million par value) 46 — TIFSA - 1.375% due in 2025 (EUR 500 million par value) 571 — TIFSA - 3.90% due in 2026 ($750 million par value) 824 — TIFSA - 5.125% due in 2045 ($750 million par value) 903 — Adient - 3.5% due in 2024 (EUR 1,000 million par value) 1,119 — Adient - 4.875% due in 2026 ($900 million par value) 900 — TSarl - Term Loan A - LIBOR plus 1.50% due in 2020 4,000 — Adient - Term Loan A - LIBOR plus 1.005% due in 2021 1,500 — Capital lease obligations 24 48 Other foreign-denominated debt Euro 61 529 Japanese Yen 367 308 Other 39 57 Gross long-term debt 15,234 6,558 Less: current portion 628 806 Less: debt issuance costs 74 32 Less: current portion - liabilities held for sale 38 7 Less: long-term debt - noncurrent liabilities held for sale 3,441 346 Net long-term debt $ 11,053 $ 5,367
Components Of Net Financing Charges	The Company's net financing charges line item in the consolidated statements of income for the years ended September 30, 2016 , 2015 and 2014 contained the following components (in millions): Year Ended September 30, 2016 2015 2014 Interest expense, net of capitalized interest costs $ 293 $ 275 $ 238 Banking fees and bond cost amortization 30 21 15 Interest income (12 ) (7 ) (8 ) Net foreign exchange results for financing activities (22 ) (15 ) (19 ) Net financing charges $ 289 $ 274 $ 226

Derivative Instruments and He44

Derivative Instruments and Hedging Activities (Tables)	12 Months Ended
	Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Outstanding Commodity Hedge Contracts	The Company had the following outstanding contracts to hedge forecasted commodity purchases: Volume Outstanding as of Commodity Units September 30, 2016 September 30, 2015 Copper Pounds 5,849,000 14,648,000 Lead Metric Tons 5,185 6,785 Aluminum Metric Tons 2,620 5,700 Tin Metric Tons 185 2,080
Location and Fair Values of Derivative Instruments and Hedging Activities	The following table presents the location and fair values of derivative instruments and hedging activities included in the Company’s consolidated statements of financial position (in millions): Derivatives and Hedging Activities Designated as Hedging Instruments under ASC 815 Derivatives and Hedging Activities Not Designated as Hedging Instruments under ASC 815 September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Other current assets Foreign currency exchange derivatives $ 41 $ 31 $ 49 $ 27 Commodity derivatives 4 — — — Interest rate swaps — 1 — — Assets held for sale Cross-currency interest rate swaps — 5 — — Other noncurrent assets Interest rate swaps 1 5 — — Equity swap — — — 164 Total assets $ 46 $ 42 $ 49 $ 191 Other current liabilities Foreign currency exchange derivatives $ 48 $ 37 $ 18 $ 26 Commodity derivatives — 7 — — Liabilities held for sale Foreign currency exchange derivatives — — 5 — Cross-currency interest rate swaps — 1 — — Current portion of long-term debt Fixed rate debt swapped to floating 551 801 — — Long-term debt Foreign currency denominated debt 938 — — — Fixed rate debt swapped to floating 301 855 — — Noncurrent liabilities held for sale Foreign currency denominated debt 1,119 — — — Total liabilities $ 2,957 $ 1,701 $ 23 $ 26
Derivative Assets and Liabilities, Eligible for Offsetting [Table Text Block]	The gross and net amounts of derivative assets and liabilities were as follows (in millions): Fair Value of Assets Fair Value of Liabilities September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015 Gross amount recognized $ 95 $ 233 $ 2,980 $ 1,727 Gross amount eligible for offsetting (21 ) (8 ) (21 ) (8 ) Net amount $ 74 $ 225 $ 2,959 $ 1,719
Location and Amount of Gains and Losses Gross of Tax on Derivative Instruments and Related Hedge Items	The following table presents the effective portion of pre-tax gains (losses) recorded in other comprehensive income (loss) related to cash flow hedges for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Cash Flow Hedging Relationships Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives $ (18 ) $ (5 ) $ 1 Commodity derivatives 3 (19 ) (7 ) Total $ (15 ) $ (24 ) $ (6 ) The following tables presents the location and amount of the effective portion of pre-tax gains (losses) on cash flow hedges reclassified from AOCI into the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Cash Flow Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives Cost of sales $ 9 $ 25 $ 7 Foreign currency exchange derivatives Income (loss) from discontinued operations (30 ) (24 ) (9 ) Commodity derivatives Cost of sales (12 ) (11 ) 1 Forward treasury locks Net financing charges 1 1 1 Total $ (32 ) $ (9 ) $ — The following table presents the location and amount of pre-tax gains (losses) on fair value hedges recognized in the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives in ASC 815 Fair Value Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Interest rate swap Net financing charges $ (5 ) $ 7 $ 5 Fixed rate debt swapped to floating Net financing charges 5 (7 ) (5 ) Total $ — $ — $ — The following table presents the location and amount of pre-tax gains (losses) on derivatives not designated as hedging instruments recognized in the Company’s consolidated statements of income for the fiscal years ended September 30, 2016 , 2015 and 2014 (in millions): Derivatives Not Designated as Hedging Instruments under ASC 815 Location of Gain (Loss) Recognized in Income on Derivative Year Ended September 30, 2016 2015 2014 Foreign currency exchange derivatives Cost of sales $ (20 ) $ 2 $ (2 ) Foreign currency exchange derivatives Net financing charges 21 (37 ) 30 Foreign currency exchange derivatives Income tax provision 4 — — Foreign currency exchange derivatives Income (loss) from discontinued operations (30 ) 20 (9 ) Equity swap Selling, general and administrative 14 (9 ) (1 ) Total $ (11 ) $ (24 ) $ 18

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Sep. 30, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets and Liabilities Measured at Fair Value	The following tables present the Company’s fair value hierarchy for those assets and liabilities measured at fair value as of September 30, 2016 and 2015 (in millions): Fair Value Measurements Using: Total as of September 30, 2016 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other current assets Foreign currency exchange derivatives $ 90 $ — $ 90 $ — Commodity derivatives 4 — 4 — Exchange traded funds (fixed income) 1 15 15 — — Other noncurrent assets Interest rate swaps 1 — 1 — Investments in marketable common stock 3 3 — — Deferred compensation plan assets 81 81 — — Exchange traded funds (fixed income) 1 163 163 — — Exchange traded funds (equity) 1 86 86 — — Total assets $ 443 $ 348 $ 95 $ — Other current liabilities Foreign currency exchange derivatives $ 66 $ — $ 66 $ — Liabilities held for sale Foreign currency exchange derivatives 5 — 5 — Current portion of long-term debt Fixed rate debt swapped to floating 551 — 551 — Long-term debt Foreign currency denominated debt 938 938 — — Fixed rate debt swapped to floating 301 — 301 — Noncurrent liabilities held for sale Foreign currency denominated debt 1,119 1,119 — — Total liabilities $ 2,980 $ 2,057 $ 923 $ — 1 Classified as restricted investments for payment of asbestos liabilities. See Note 23, "Commitments and Contingencies" of the notes to consolidated financial statements for further details. Fair Value Measurements Using: Total as of September 30, 2015 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Other current assets Foreign currency exchange derivatives $ 58 $ — $ 58 $ — Interest rate swaps 1 — 1 — Assets held for sale Cross-currency interest rate swaps 5 — 5 — Other noncurrent assets Interest rate swaps 5 — 5 — Investments in marketable common stock 4 4 — — Equity swap 164 164 — — Total assets $ 237 $ 168 $ 69 $ — Other current liabilities Foreign currency exchange derivatives $ 63 $ — $ 63 $ — Commodity derivatives 7 — 7 — Liabilities held for sale Cross-currency interest rate swaps 1 — 1 — Current portion of long-term debt Fixed rate debt swapped to floating 801 — 801 — Long-term debt Fixed rate debt swapped to floating 855 — 855 — Total liabilities $ 1,727 $ — $ 1,727 $ —

Stock-based Compensation (Table

Stock-based Compensation (Tables)	12 Months Ended
	Sep. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Assumptions Used in Black-Scholes Option Valuation Model	The fair value of each option is estimated on the date of grant using a Black-Scholes option valuation model that uses the assumptions noted in the following table. Expected volatilities are based on the historical volatility of the Company’s stock and other factors. The Company uses historical data to estimate option exercises and employee terminations within the valuation model. The expected term of options represents the period of time that options granted are expected to be outstanding. The risk-free rate for periods during the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of grant. Year Ended September 30, 2016 2015 2014 Expected life of option (years) 6.4 6.6 6.7 Risk-free interest rate 1.64% - 1.70% 1.61% - 1.93% 1.92% Expected volatility of the Company’s stock 36.00% 36.00% 36.00% Expected dividend yield on the Company’s stock 2.11% 2.02% 2.17%
Summary of Stock Option Activity	A summary of stock option activity at September 30, 2016 , and changes for the year then ended, is presented below: Weighted Average Option Price Shares Subject to Option Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in millions) Outstanding, September 30, 2015 $ 31.17 13,039,240 Granted 43.83 961,705 Acquired Tyco awards 31.37 10,895,381 Exercised 27.93 (2,393,703 ) Forfeited or expired 42.90 (170,390 ) Outstanding, September 30, 2016 $ 32.07 22,332,233 5.3 $ 327 Exercisable, September 30, 2016 $ 28.30 15,745,714 4.4 $ 288
Assumptions Used in Black-Scholes Stock Appreciation Rights Valuation Model	The assumptions used to determine the fair value of the SAR awards at September 30, 2016 were as follows: Expected life of SAR (years) 0.5 - 4.2 Risk-free interest rate 0.45% - 1.04% Expected volatility of the Company’s stock 36.00% Expected dividend yield on the Company’s stock 2.11%
Summary of Stock Appreciation Rights Activity	A summary of SAR activity at September 30, 2016 , and changes for the year then ended, is presented below: Weighted Average SAR Price Shares Subject to SAR Weighted Average Remaining Contractual Life (years) Aggregate Intrinsic Value (in millions) Outstanding, September 30, 2015 $ 29.53 1,740,100 Granted 43.86 54,749 Exercised 27.41 (494,480 ) Forfeited or expired 36.33 (99,204 ) Outstanding, September 30, 2016 $ 30.49 1,201,165 4.6 $ 19 Exercisable, September 30, 2016 $ 29.23 1,114,543 4.3 $ 19
Summary of Nonvested Restricted Stock Awards	A summary of the status of the Company’s nonvested restricted stock awards at September 30, 2016 , and changes for the fiscal year then ended, is presented below: Weighted Average Price Shares/Units Subject to Restriction Nonvested, September 30, 2015 $ 45.75 2,370,155 Granted 45.49 4,052,020 Acquired Tyco awards 47.74 2,916,471 Converted performance share awards * 49.20 1,108,036 Vested 34.45 (527,017 ) Forfeited 45.83 (353,621 ) Nonvested, September 30, 2016 $ 47.27 9,566,044
Summary of Nonvested PSUs	A summary of the status of the Company’s nonvested PSUs at September 30, 2016 , and changes for the fiscal year then ended, is presented below: Weighted Average Price Shares/Units Subject to PSU Nonvested, September 30, 2015 $ 42.33 924,388 Vested 30.73 (344,318 ) Forfeited 49.73 (21,305 ) Nonvested, September 02, 2016 $ 49.20 558,765 Conversion to nonvested restricted stock * 49.20 (558,765 ) Nonvested, September 30, 2016 $ — —

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Sep. 30, 2016
Earnings Per Share [Abstract]
Earnings Per Share	The following table reconciles the numerators and denominators used to calculate basic and diluted earnings per share (in millions): Year Ended September 30, 2016 2015 2014 Income (Loss) Available to Ordinary Shareholders Income from continuing operations $ 732 $ 814 $ 906 Income (loss) from discontinued operations (1,600 ) 749 309 Basic and diluted income (loss) available to shareholders $ (868 ) $ 1,563 $ 1,215 Weighted Average Shares Outstanding Basic weighted average shares outstanding 667.4 655.2 666.9 Effect of dilutive securities: Stock options, unvested restricted stock and unvested performance share awards 5.2 6.3 7.9 Diluted weighted average shares outstanding 672.6 661.5 674.8 Antidilutive Securities Options to purchase shares — 0.4 0.1

Equity and Noncontrolling Int48

Equity and Noncontrolling Interests (Tables)	12 Months Ended
	Sep. 30, 2016
Stockholders' Equity Note [Abstract]
Equity Attributable to Johnson Controls, Inc. and Noncontrolling Interests	The following schedules present changes in consolidated equity attributable to Johnson Controls and noncontrolling interests (in millions, net of tax): Equity Attributable to Johnson Controls International plc Equity Attributable to Noncontrolling Interests Total Equity At September 30, 2013 $ 12,273 $ 260 $ 12,533 Total comprehensive income: Net income 1,215 90 1,305 Foreign currency translation adjustments (640 ) (2 ) (642 ) Realized and unrealized losses on derivatives (3 ) — (3 ) Realized and unrealized losses on marketable securities (7 ) — (7 ) Pension and postretirement plans (5 ) — (5 ) Other comprehensive loss (655 ) (2 ) (657 ) Comprehensive income 560 88 648 Other changes in equity: Cash dividends - common stock ($0.88 per share) (586 ) — (586 ) Dividends attributable to noncontrolling interests — (59 ) (59 ) Repurchases of common stock (1,249 ) — (1,249 ) Change in noncontrolling interest share — (32 ) (32 ) Other, including options exercised 272 (6 ) 266 At September 30, 2014 11,270 251 11,521 Total comprehensive income: Net income 1,563 65 1,628 Foreign currency translation adjustments (799 ) (3 ) (802 ) Realized and unrealized losses on derivatives (11 ) — (11 ) Pension and postretirement plans (10 ) — (10 ) Other comprehensive loss (820 ) (3 ) (823 ) Comprehensive income 743 62 805 Other changes in equity: Cash dividends - common stock ($1.04 per share) (681 ) — (681 ) Dividends attributable to noncontrolling interests — (57 ) (57 ) Repurchases of common stock (1,362 ) — (1,362 ) Change in noncontrolling interest share — (93 ) (93 ) Other, including options exercised 365 — 365 At September 30, 2015 10,335 163 10,498 Total comprehensive income (loss): Net income (loss) (868 ) 168 (700 ) Foreign currency translation adjustments (105 ) 9 (96 ) Realized and unrealized gains (losses) on derivatives 11 (1 ) 10 Unrealized losses on marketable securities (1 ) — (1 ) Pension and postretirement plans (1 ) — (1 ) Other comprehensive income (loss) (96 ) 8 (88 ) Comprehensive income (loss) (964 ) 176 (788 ) Other changes in equity: Result of contribution of Johnson Controls, Inc. to Johnson Controls International plc 15,808 — 15,808 Cash dividends - common stock ($1.16 per share) (752 ) — (752 ) Dividends attributable to noncontrolling interests — (93 ) (93 ) Repurchases of common stock (501 ) — (501 ) Change in noncontrolling interest share — 726 726 Other, including options exercised 192 — 192 At September 30, 2016 $ 24,118 $ 972 $ 25,090
Changes in Redeemable Noncontrolling Interests	The following schedules present changes in the redeemable noncontrolling interests (in millions): Year Ended September 30, 2016 Year Ended September 30, 2015 Year Ended September 30, 2014 Beginning balance, September 30 $ 212 $ 194 $ 157 Net income 48 51 38 Foreign currency translation adjustments 2 (23 ) — Realized and unrealized gains (losses) on derivatives (1 ) 1 — Dividends (27 ) (11 ) (7 ) Other — — 6 Ending balance, September 30 $ 234 $ 212 $ 194
Changes in Accumulated Other Comprehensive Income, net of tax	The following schedules present changes in AOCI attributable to Johnson Controls (in millions, net of tax): Year Ended September 30, 2016 Year Ended September 30, 2015 Year Ended September 30, 2014 Foreign currency translation adjustments Balance at beginning of period $ (1,047 ) $ (248 ) $ 392 Aggregate adjustment for the period (net of tax effect of $(43), $(44) and $7) * (105 ) (799 ) (640 ) Balance at end of period (1,152 ) (1,047 ) (248 ) Realized and unrealized gains (losses) on derivatives Balance at beginning of period (7 ) 4 7 Current period changes in fair value (net of tax effect of $(5), $(7) and $(3)) (10 ) (17 ) (3 ) Reclassification to income (net of tax effect of $11, $3 and $0) ** 21 6 — Balance at end of period 4 (7 ) 4 Realize and unrealized gains (losses) on marketable securities Balance at beginning of period — — 7 Current period changes in fair value (net of tax effect of $0) (1 ) — (1 ) Reclassifications to income (net of tax effect of $0, $0 and $(2)) *** — — (6 ) Balance at end of period (1 ) — — Pension and postretirement plans Balance at beginning of period (3 ) 7 12 Reclassification to income (net of tax effect of $0, $(3) and $(3)) **** (1 ) (11 ) (4 ) Other changes (net of tax effect of $0) — 1 (1 ) Balance at end of period (4 ) (3 ) 7 Accumulated other comprehensive loss, end of period $ (1,153 ) $ (1,057 ) $ (237 ) * During fiscal 2015, ($19) million of cumulative CTA were recognized as part of the divestiture-related gain recognized within discontinued operations as a result of the divestiture of GWS. During fiscal 2014, $203 million of cumulative CTA were recognized as part of the divestiture-related losses recognized within discontinued operations as a result of the divestiture of the Automotive Experience Electronics business. ** Refer to Note 10, "Derivative Instruments and Hedging Activities," of the notes to consolidated financial statements for disclosure of the line items on the consolidated statements of income affected by reclassifications from AOCI into income related to derivatives. *** During fiscal 2014, the Company sold certain marketable common stock for approximately $25 million . As as result, the Company recorded $8 million of realized gains within selling, general and administrative expenses in the Automotive Experience Seating segment. **** Refer to Note 15, "Retirement Plans," of the notes to consolidated financial statements for disclosure of the components of the Company's net periodic benefit costs associated with its defined benefit pension and postretirement plans. For the year ended September 30, 2016, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses on the consolidated statements of income. For the year ended September 30, 2015 the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses and income (loss) from discontinued operations, net of tax on the consolidated statements of income. For the year ended September 30, 2014, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in cost of sales and income (loss) from discontinued operations, net of tax on the consolidated statements of income.

Retirement Plans (Tables)

Retirement Plans (Tables)	12 Months Ended
	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Plan Assets by Asset Category	The Company’s plan assets at September 30, 2016 and 2015 , by asset category, are as follows (in millions): Fair Value Measurements Using: Asset Category Total as of September 30, 2016 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Pension Cash $ 38 $ 38 $ — $ — Equity Securities Large-Cap 692 499 193 — Small-Cap 267 252 15 — International - Developed 655 566 89 — Fixed Income Securities Government 345 280 65 — Corporate/Other 950 633 317 — Total Investments in the Fair Value Hierarchy 2,947 $ 2,268 $ 679 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 346 Total Plan Assets $ 3,293 Non-U.S. Pension Cash $ 90 $ 90 $ — $ — Equity Securities Large-Cap 317 152 165 — International - Developed 453 160 293 — International - Emerging 19 19 — — Fixed Income Securities Government 864 452 412 — Corporate/Other 561 385 176 — Hedge Fund 169 — 169 — Real Estate 11 11 — — Total Investments in the Fair Value Hierarchy 2,484 $ 1,269 $ 1,215 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 52 Total Plan Assets $ 2,536 Postretirement Cash $ 7 $ 7 $ — $ — Equity Securities Large-Cap 31 31 — — Small-Cap 10 10 — — International - Developed 23 23 — — International - Emerging 12 12 — — Fixed Income Securities Government 23 23 — — Corporate/Other 65 65 — — Commodities 12 12 — — Real Estate 13 13 — — Total Plan Assets $ 196 $ 196 $ — $ — Fair Value Measurements Using: Asset Category Total as of September 30, 2015 Quoted Prices in Active Markets (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) U.S. Pension Cash $ 75 $ 75 $ — $ — Equity Securities Large-Cap 500 500 — — Small-Cap 235 235 — — International - Developed 472 472 — — Fixed Income Securities Government 248 217 31 — Corporate/Other 753 615 138 — Total Investments in the Fair Value Hierarchy 2,283 $ 2,114 $ 169 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 323 Total Plan Assets $ 2,606 Non-U.S. Pension Cash $ 98 $ 98 $ — $ — Equity Securities Large-Cap 68 68 — — International - Developed 104 104 — — International - Emerging 16 16 — — Fixed Income Securities Government 441 319 122 — Corporate/Other 220 192 28 — Hedge Fund 172 — 172 — Real Estate 7 7 — — Total Investments in the Fair Value Hierarchy 1,126 $ 804 $ 322 $ — Investments Measured at Net Asset Value, as Practical Expedient: Real Estate Investments Measured at Net Asset Value * 51 Total Plan Assets $ 1,177 Postretirement Cash $ 10 $ 10 $ — $ — Equity Securities Large-Cap 30 30 — — Small-Cap 10 10 — — International - Developed 22 22 — — International - Emerging 10 10 — — Fixed Income Securities Government 22 22 — — Corporate/Other 67 67 — — Commodities 12 12 — — Real Estate 11 11 — — Total Plan Assets $ 194 $ 194 $ — $ —
Accumulated Benefit Obligations and Reconciliations of Changes in Projected Benefit Obligation, Changes in Plan Assets and Funded Status	The table that follows contains the ABO and reconciliations of the changes in the PBO, the changes in plan assets and the funded status (in millions): Pension Benefits Postretirement Benefits U.S. Plans Non-U.S. Plans September 30, 2016 2015 2016 2015 2016 2015 Accumulated Benefit Obligation $ 4,118 $ 2,985 $ 3,359 $ 1,388 $ — $ — Change in Projected Benefit Obligation Projected benefit obligation at beginning of year 3,022 2,875 1,447 1,572 211 224 Service cost 16 31 30 25 2 3 Interest cost 104 122 44 46 6 9 Plan participant contributions — — 1 1 6 6 Benefit obligations assumed in Tyco acquisition 974 — 1,635 — 30 — Other acquisitions — — 279 — 2 — Divestitures — — — (18 ) — — Actuarial loss 355 203 295 7 5 — Benefits and settlements paid (301 ) (209 ) (116 ) (65 ) (22 ) (24 ) Estimated subsidy received — — — — 1 1 Curtailment — — — (5 ) — — Other (1 ) — (1 ) 43 1 (4 ) Currency translation adjustment — — (92 ) (159 ) — (4 ) Projected benefit obligation at end of year $ 4,169 $ 3,022 $ 3,522 $ 1,447 $ 242 $ 211 Change in Plan Assets Fair value of plan assets at beginning of year $ 2,606 $ 2,504 $ 1,177 $ 1,201 $ 194 $ 219 Actual return on plan assets 267 (4 ) 113 48 17 (9 ) Plan assets acquired in Tyco acquisition 705 — 1,149 — — — Other acquisitions — — 180 — — — Divestitures — — — (10 ) — — Employer and employee contributions 16 315 121 81 7 8 Benefits paid (124 ) (201 ) (59 ) (55 ) (22 ) (24 ) Settlement payments (177 ) (8 ) (57 ) (10 ) — — Other — — — 39 — — Currency translation adjustment — — (88 ) (117 ) — — Fair value of plan assets at end of year $ 3,293 $ 2,606 $ 2,536 $ 1,177 $ 196 $ 194 Funded status $ (876 ) $ (416 ) $ (986 ) $ (270 ) $ (46 ) $ (17 ) Amounts recognized in the statement of financial position consist of: Prepaid benefit cost - continuing operations $ 21 $ 16 $ 25 $ 20 $ 53 $ 37 Prepaid benefit cost - discontinued operations 1 1 7 10 — — Accrued benefit liability - continuing operations (896 ) (432 ) (832 ) (184 ) (95 ) (52 ) Accrued benefit liability - discontinued operations (2 ) (1 ) (186 ) (116 ) (4 ) (2 ) Net amount recognized $ (876 ) $ (416 ) $ (986 ) $ (270 ) $ (46 ) $ (17 ) Weighted Average Assumptions (1) Discount rate (2) 3.70 % 4.40 % 1.90 % 3.15 % 3.30 % 3.75 % Rate of compensation increase 3.20 % 3.25 % 2.75 % 3.00 % NA NA (1) Plan assets and obligations are determined based on a September 30 measurement date at September 30, 2016 and 2015 . (2) The Company considers the expected benefit payments on a plan-by-plan basis when setting assumed discount rates. As a result, the Company uses different discount rates for each plan depending on the plan jurisdiction, the demographics of participants and the expected timing of benefit payments. For the U.S. pension and postretirement plans, the Company uses a discount rate provided by an independent third party calculated based on an appropriate mix of high quality bonds. For the non-U.S. pension and postretirement plans, the Company consistently uses the relevant country specific benchmark indices for determining the various discount rates. At September 30, 2015, the Company changed the method used to estimate the service and interest components of net periodic benefit cost for pension and other postretirement benefits for plans that utilize a yield curve approach. This change compared to the previous method results in different service and interest components of net periodic benefit cost (credit). Historically, the Company estimated these service and interest cost components utilizing a single weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. The Company elected to utilize a full yield curve approach in the estimation of these components by applying the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flows. The Company made this change to provide a more precise measurement of service and interest costs by improving the correlation between projected benefit cash flows to the corresponding spot yield curve rates. This change does not affect the measurement of the total benefit obligations or annual net periodic benefit cost (credit) as the change in the service and interest costs is completely offset in the net actuarial (gain) loss reported. The change in the service and interest costs was not significant. The Company accounted for this change as a change in accounting estimate.
Amounts in Accumulated Other Comprehensive Income, Exclusive of Tax Impacts, that have not yet been Recognized as Components of Net Periodic Benefit Cost	The amounts in AOCI on the consolidated statements of financial position, exclusive of tax impacts, that have not yet been recognized as components of net periodic benefit cost at September 30, 2016 are as follows (in millions): Pension Benefits Postretirement Benefits Accumulated other comprehensive loss Net transition asset $ 1 $ — Net prior service cost 4 — Total $ 5 $ —
Amounts in Accumulated Other Comprehensive Income Expected to be Recognized as Components of Net Periodic Benefit Cost over Next Fiscal Year	The amounts in AOCI expected to be recognized as components of net periodic benefit cost over the next fiscal year are shown below (in millions): Pension Benefits Postretirement Benefits Amortization of: Net transition obligation $ — $ — Net prior service cost 1 — Total $ 1 $ —
Components of Net Periodic Benefit Cost	The table that follows contains the components of net periodic benefit cost (in millions): Pension Benefits Postretirement Benefits U.S. Plans Non-U.S. Plans Year ended September 30, 2016 2015 2014 2016 2015 2014 2016 2015 2014 Components of Net Periodic Benefit Cost (Credit): Service cost $ 16 $ 31 $ 70 $ 30 $ 32 $ 38 $ 2 $ 3 $ 5 Interest cost 104 122 138 44 57 71 6 9 12 Expected return on plan assets (191 ) (181 ) (207 ) (61 ) (71 ) (75 ) (10 ) (12 ) (12 ) Net actuarial (gain) loss 268 387 126 237 14 172 (2 ) 21 (24 ) Amortization of prior service cost (credit) — — 1 1 (1 ) (1 ) (1 ) (1 ) (7 ) Curtailment gain — — — — (15 ) (2 ) — — — Settlement loss 11 1 15 6 — 1 — — — Net periodic benefit cost (credit) 208 360 143 257 16 204 (5 ) 20 (26 ) Net periodic benefit (cost) credit related to discontinued operations (1 ) (1 ) (1 ) (111 ) 1 (107 ) (1 ) (1 ) 7 Net periodic benefit cost (credit) included in continuing operations $ 207 $ 359 $ 142 $ 146 $ 17 $ 97 $ (6 ) $ 19 $ (19 ) Expense Assumptions: Discount rate 4.40 % 4.35 % 4.90 % 3.10 % 3.00 % 3.60 % 3.75 % 4.35 % 4.90 % Expected return on plan assets 7.50 % 7.50 % 8.00 % 4.50 % 4.50 % 4.75 % 5.45 % 5.75 % 5.80 % Rate of compensation increase 3.25 % 3.25 % 3.30 % 3.30 % 2.60 % 2.60 % NA NA NA
Summary of Changes in Fair Value of Assets Measured Using Significant Unobservable Inputs (Level 3)	The following sets forth a summary of changes in the fair value of assets measured using significant unobservable inputs (Level 3) (in millions): Hedge Funds U.S. Pension Asset value as of September 30, 2014 $ 4 Additions net of redemptions (3 ) Realized gain (loss) (1 ) Unrealized gain — Asset value as of September 30, 2015 $ —
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Payments from Plans	In fiscal 2016 , total employer contributions to the defined benefit pension plans were $136 million , of which $34 million were voluntary contributions made by the Company. The Company expects to contribute approximately $326 million in cash to its defined benefit pension plans in fiscal 2017 including $247 million due to change-in-control provisions triggered by the Tyco Merger. Projected benefit payments from the plans for continuing and discontinued operations as of September 30, 2016 are estimated as follows (in millions): 2017 $ 569 2018 321 2019 332 2020 337 2021 344 2022-2026 1,879
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Projected Benefit Payments from Plans	In fiscal 2016 , total employer and employee contributions to the postretirement plans were $7 million . The Company expects to contribute approximately $4 million in cash to its postretirement plans in fiscal 2017 . Projected benefit payments from the plans for continuing and discontinued operations as of September 30, 2016 are estimated as follows (in millions): 2017 $ 21 2018 21 2019 21 2020 21 2021 20 2022-2026 86

Significant Restructuring and50

Significant Restructuring and Impairment Costs Change in Restructuring Reserve - 2016 Restructuring Plan (Tables)	12 Months Ended
	Sep. 30, 2016
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Currency Total Original Reserve $ 368 $ 190 $ 62 $ — $ 620 Acquired Tyco restructuring reserves 78 — — 78 Utilized—cash (32 ) — — — (32 ) Utilized—noncash — (190 ) (32 ) 1 (221 ) Balance at September 30, 2016 $ 414 $ — $ 30 $ 1 $ 445

Significant Restructuring and51

Significant Restructuring and Impairment Costs Changes in Restructuring Reserve - 2015 Restructuring Plan (Tables)	12 Months Ended
	Sep. 30, 2016
2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2015 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Total Original Reserve $ 191 $ 183 $ 23 $ 397 Utilized—noncash — (183 ) — (183 ) Balance at September 30, 2015 $ 191 $ — $ 23 $ 214 Utilized—cash (74 ) — (23 ) (97 ) Balance at September 30, 2016 $ 117 $ — $ — $ 117

Significant Restructuring and52

Significant Restructuring and Impairment Costs Changes in Restructuring Reserve - 2014 Restructuring Plan (Tables)	12 Months Ended
	Sep. 30, 2016
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2014 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 191 $ 134 $ 47 $ 5 $ — $ 377 Utilized—cash (8 ) — — — — (8 ) Utilized—noncash — (134 ) (47 ) — (6 ) (187 ) Balance at September 30, 2014 $ 183 $ — $ — $ 5 $ (6 ) $ 182 Utilized—cash (65 ) — — (5 ) — (70 ) Utilized—noncash — — — — (13 ) (13 ) Balance at September 30, 2015 $ 118 $ — $ — $ — $ (19 ) $ 99 Utilized—cash (74 ) — — — — (74 ) Utilized—noncash — — — — (2 ) (2 ) Balance at September 30, 2016 $ 44 $ — $ — $ — $ (21 ) $ 23

Significant Restructuring and53

Significant Restructuring and Impairment Costs Changes in Restructuring Reserve - 2013 Restructuring Plan (Tables)	12 Months Ended
	Sep. 30, 2016
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2013 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 392 $ 156 $ 430 $ 7 $ — $ 985 Utilized—cash (26 ) — — — — (26 ) Utilized—noncash — (156 ) (430 ) (4 ) 4 (586 ) Transfer to liabilities held for sale (31 ) — — — — (31 ) Balance at September 30, 2013 $ 335 $ — $ — $ 3 $ 4 $ 342 Utilized—cash (144 ) — — (3 ) — (147 ) Utilized—noncash — — — — (11 ) (11 ) Transfer from liabilities held for sale 31 — — — — 31 Transfer to liabilities held for sale (24 ) — — — — (24 ) Balance at September 30, 2014 $ 198 $ — $ — $ — $ (7 ) $ 191 Utilized—cash (113 ) — — — — (113 ) Utilized—noncash — — — — (10 ) (10 ) Balance at September 30, 2015 $ 85 $ — $ — $ — $ (17 ) $ 68 Utilized—cash (43 ) — — — — (43 ) Utilized—noncash — — — — (1 ) (1 ) Balance at September 30, 2016 $ 42 $ — $ — $ — $ (18 ) $ 24

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Significant Components of Company's Income Tax Provision from Continuing Operations	The more significant components of the Company’s income tax provision from continuing operations are as follows (in millions): Year Ended September 30, 2016 2015 2014 Tax expense at federal statutory rate $ 371 $ 326 $ 363 State income taxes, net of federal benefit (6 ) (6 ) (5 ) Foreign income tax expense at different rates and foreign losses without tax benefits (122 ) (175 ) (55 ) U.S. tax on foreign income (194 ) 39 (233 ) Reserve and valuation allowance adjustments — (99 ) 34 U.S. credits and incentives (14 ) (7 ) (5 ) Impact of transactions 163 — — Restructuring and impairment costs 28 — 30 Other (29 ) (7 ) (36 ) Income tax provision $ 197 $ 71 $ 93
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits	A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows (in millions): Year Ended September 30, 2016 2015 2014 Beginning balance, October 1 $ 1,052 $ 1,493 $ 1,187 Additions for tax positions related to the current year 442 329 315 Additions for tax positions of prior years 15 23 31 Reductions for tax positions of prior years (66 ) (111 ) (26 ) Settlements with taxing authorities (104 ) (541 ) (9 ) Statute closings (30 ) (18 ) (5 ) Audit resolutions — (123 ) — Acquisition of business 397 — — Ending balance, September 30 $ 1,706 $ 1,052 $ 1,493
Tax Jurisdictions and Years Currently under Audit Exam	In the U.S., fiscal years 2010 through 2014 are currently under exam by the Internal Revenue Service ("IRS") and 2008 through 2009 are currently under IRS appeals. Additionally, the Company is currently under exam in the following major foreign jurisdictions for continuing operations: Tax Jurisdiction Tax Years Covered Belgium 2011 - 2014 Brazil 2011 - 2012 Canada 2012 - 2015 France 2010 - 2015 Germany 2007 - 2013 Italy 2006, 2011 Korea 2012 - 2015 Mexico 2009 - 2015 Spain 2008 - 2014 United Kingdom 2011 - 2014
Components of Provision for Income Taxes on Continuing Operations	Components of the provision for income taxes on continuing operations were as follows (in millions): Year Ended September 30, 2016 2015 2014 Current Federal $ 169 $ (688 ) $ (90 ) State 5 (33 ) (2 ) Foreign 788 550 397 962 (171 ) 305 Deferred Federal (321 ) 410 (137 ) State (15 ) (2 ) (8 ) Foreign (429 ) (166 ) (67 ) (765 ) 242 (212 ) Income tax provision $ 197 $ 71 $ 93
Deferred Taxes Classified in Consolidated Statements of Financial Position	Deferred taxes were classified in the consolidated statements of financial position as follows (in millions): September 30, 2016 2015 Other noncurrent assets 2,467 1,630 Other noncurrent liabilities (1,542 ) (203 ) Net deferred tax asset $ 925 $ 1,427
Temporary Differences and Carryforwards in Deferred Tax Assets and Liabilities	Temporary differences and carryforwards which gave rise to deferred tax assets and liabilities included (in millions): September 30, 2016 2015 Deferred tax assets Accrued expenses and reserves $ 1,175 $ 215 Employee and retiree benefits 438 241 Net operating loss and other credit carryforwards 4,483 2,460 Research and development 85 54 Joint ventures and partnerships 49 10 Other 19 12 6,249 2,992 Valuation allowances (3,400 ) (1,151 ) 2,849 1,841 Deferred tax liabilities Property, plant and equipment 87 125 Intangible assets 1,837 289 1,924 414 Net deferred tax asset $ 925 $ 1,427

Segment Information (Tables)

Segment Information (Tables)	12 Months Ended
	Sep. 30, 2016
Segment Reporting [Abstract]
Financial Information Related To Company's Reportable Segments	Financial information relating to the Company’s reportable segments is as follows (in millions): Year Ended September 30, 2016 2015 2014 Net Sales Buildings Building Efficiency Systems and Service North America $ 4,292 $ 4,184 $ 4,098 Products North America 2,488 2,450 1,807 Asia 4,830 1,985 2,077 Rest of World 1,766 1,891 2,103 13,376 10,510 10,085 Tyco 808 — — 14,184 10,510 10,085 Power Solutions 6,653 6,590 6,632 Total net sales $ 20,837 $ 17,100 $ 16,717 Year Ended September 30, 2016 2015 2014 Segment EBITA Buildings Building Efficiency Systems and Service North America (1) $ 500 $ 419 $ 396 Products North America (2) 271 380 279 Asia (3) 541 215 294 Rest of World (4) 55 72 (24 ) 1,367 1,086 945 Tyco (5) 60 — — 1,427 1,086 945 Power Solutions (6) 1,327 1,241 1,139 Total segment EBITA $ 2,754 $ 2,327 $ 2,084 Amortization of intangible assets (116 ) (74 ) (61 ) Corporate expenses (7) (607 ) (417 ) (408 ) Net financing charges (289 ) (274 ) (226 ) Restructuring and impairment costs (288 ) (215 ) (165 ) Net mark-to-market adjustments on pension and postretirement plans (393 ) (416 ) (187 ) Income from continuing operations before income taxes $ 1,061 $ 931 $ 1,037 September 30, 2016 2015 2014 Assets Buildings Building Efficiency Systems and Service North America $ 2,338 $ 2,332 $ 2,341 Products North America 4,236 4,193 4,157 Asia 3,668 1,387 1,418 Rest of World 1,416 1,471 1,642 11,658 9,383 9,558 Tyco (8) 28,097 — — 39,755 9,383 9,558 Power Solutions 6,859 6,590 6,888 Assets held for sale 13,186 10,613 12,565 Unallocated 3,379 3,004 3,766 Total $ 63,179 $ 29,590 $ 32,777 Year Ended September 30, 2016 2015 2014 Depreciation/Amortization Buildings Building Efficiency Systems and Service North America $ 29 $ 26 $ 28 Products North America 111 115 79 Asia 97 24 22 Rest of World 15 16 23 252 181 152 Tyco 52 — — 304 181 152 Power Solutions 238 286 306 Corporate 80 60 55 Discontinued operations 331 333 442 Total $ 953 $ 860 $ 955 Year Ended September 30, 2016 2015 2014 Capital Expenditures Buildings Building Efficiency Systems and Service North America $ 13 $ 17 $ 24 Products North America 192 130 110 Global Workplace Solutions — 13 15 Asia 105 26 35 Rest of World 22 31 30 332 217 214 Tyco 14 — — 346 217 214 Automotive Experience Seating 392 356 376 Interiors 3 99 162 Electronics — — 27 395 455 565 Power Solutions 357 252 294 Corporate 151 211 126 Total $ 1,249 $ 1,135 $ 1,199 (1) Building Efficiency - Systems and Service North America segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $2 million , $3 million and $12 million , respectively, of restructuring and impairment costs. (2) Building Efficiency - Products North America segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $9 million , $11 million and $7 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Products North America segment EBITA includes $10 million , $9 million and $7 million , respectively, of equity income. (3) Building Efficiency - Asia segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $26 million , $11 million and $4 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 and 2014 , Asia segment EBITA includes $100 million and $21 million , respectively, of equity income. (4) Building Efficiency - Rest of World segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $16 million , $13 million and $119 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Rest of World segment EBITA includes $15 million , $14 million and $7 million , respectively, of equity income. (5) Tyco segment EBITA for the year ended September 30, 2016 excludes $8 million of restructuring and impairment costs. For the year ended September 30, 2016, Tyco segment EBITA includes $1 million of equity income. (6) Power Solutions segment EBITA for the years ended September 30, 2016 , 2015 and 2014 excludes $66 million , $11 million and $16 million , respectively, of restructuring and impairment costs. For the years ended September 30, 2016 , 2015 and 2014 , Power Solutions segment EBITA includes $48 million , $57 million and $75 million , respectively, of equity income. (7) Corporate expenses for the years ended September 30, 2016, 2015 and 2014 excludes $161 million , $166 million and $7 million , respectively, of restructuring and impairment costs. (8) Current year and prior year amounts exclude assets held for sale. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's disposal groups classified as held for sale.
Geographic Segments	Financial information relating to the Company’s operations by geographic area is as follows (in millions): Year Ended September 30, 2016 2015 2014 Net Sales United States $ 9,633 $ 8,982 $ 8,203 Germany 1,430 911 965 Japan 1,805 315 353 Mexico 639 635 663 Other European countries 2,108 2,270 2,592 Other foreign 5,222 3,987 3,941 Total $ 20,837 $ 17,100 $ 16,717 Long-Lived Assets (Year-end) United States $ 2,880 $ 2,056 $ 2,422 Germany 287 304 377 Japan 188 8 3 Mexico 457 368 304 Other European countries 551 280 96 Other foreign 1,269 667 645 Total $ 5,632 $ 3,683 $ 3,847

Nonconsolidated Partially-Own56

Nonconsolidated Partially-Owned Affiliates (Tables)	12 Months Ended
	Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
Summarized Balance Sheet Data of Company's Nonconsolidated Partially-Owned Affiliates	Summarized balance sheet data as of September 30 is as follows (in millions): 2016 2015 Current assets $ 9,117 $ 7,083 Noncurrent assets 4,164 3,294 Total assets $ 13,281 $ 10,377 Current liabilities $ 7,689 $ 6,268 Noncurrent liabilities 754 604 Noncontrolling interests 78 20 Shareholders’ equity 4,760 3,485 Total liabilities and shareholders’ equity $ 13,281 $ 10,377
Summarized Income Statement Data of Company's Nonconsolidated Partially-Owned Affiliates	Summarized income statement data for the years ended September 30 is as follows (in millions): 2016 2015 2014 Net sales $ 21,456 $ 12,922 $ 10,820 Gross profit 3,119 1,911 1,638 Net income 1,569 890 790 Income attributable to noncontrolling interests 26 10 3 Net income attributable to the entity 1,543 880 787

Guarantees (Tables)

Guarantees (Tables)	12 Months Ended
	Sep. 30, 2016
Product Warranties Disclosures [Abstract]
Changes in Carrying Amount of Product Warranty Liability	The changes in the carrying amount of the Company’s total product warranty liability for continuing operations, including extended warranties for which deferred revenue is recorded, for the fiscal years ended September 30, 2016 and 2015 were as follows (in millions): Year Ended September 30, 2016 2015 Balance at beginning of period $ 288 $ 299 Accruals for warranties issued during the period 314 274 Accruals from acquisitions and divestitures 83 — Accruals related to pre-existing warranties (including changes in estimates) (17 ) (5 ) Settlements made (in cash or in kind) during the period (297 ) (275 ) Currency translation 3 (5 ) Balance at end of period $ 374 $ 288 As a result of the Tyco Merger in the fourth quarter of fiscal 2016, the Company recorded as part of the acquired liabilities of Tyco $290 million of post sale contingent tax indemnification liabilities within other noncurrent liabilities in the consolidated statements of financial position. The liabilities are recorded at fair value and relate to certain tax related matters borne by the buyer of previously divested subsidiaries of Tyco which Tyco has indemnified certain parties and the amounts are probable of being paid. Of the $290 million recorded as of September 30, 2016, $255 million is related to prior divested businesses and the remainder relates to Tyco’s tax sharing agreements from its 2007 and 2012 spin-off transactions. These are certain guarantees or indemnifications extended among Tyco, Medtronic, TE Connectivity, ADT and Pentair in accordance with the terms of the 2007 and 2012 separation and tax sharing agreements.

TYCO INTERNATIONAL FINANCE S.58

TYCO INTERNATIONAL FINANCE S.A. (Tables)	12 Months Ended
	Sep. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Condensed Financial Statements [Table Text Block]	CONDENSED CONSOLIDATING STATEMENT OF OPERATIONS For the Year Ended September 30, 2016 ($ in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Net sales $ — $ — $ — $ 20,837 $ — $ 20,837 Cost of sales — — — 15,183 — 15,183 Gross profit — — — 5,654 — 5,654 Selling, general and administrative expenses (2 ) (2 ) (1 ) (4,185 ) — (4,190 ) Restructuring and impairment costs — — — (288 ) — (288 ) Net financing charges — — (6 ) (283 ) — (289 ) Equity income (loss) (894 ) (1,527 ) (313 ) 174 2,734 174 Intercompany interest and fees 28 — 7 (35 ) — — Income (loss) from continuing operations before income taxes (868 ) (1,529 ) (313 ) 1,037 2,734 1,061 Income tax provision — — — 197 — 197 Income (loss) from continuing operations (868 ) (1,529 ) (313 ) 840 2,734 864 Loss from discontinued operations, net of tax — — — (1,516 ) — (1,516 ) Net income (loss) (868 ) (1,529 ) (313 ) (676 ) 2,734 (652 ) Income from continuing operations attributable to noncontrolling interests — — — 132 — 132 Income from discontinued operations attributable to noncontrolling interests — — — 84 — 84 Net income (loss) attributable to Johnson Controls $ (868 ) $ (1,529 ) $ (313 ) $ (892 ) $ 2,734 $ (868 ) CONDENSED CONSOLIDATING STATEMENT OF COMPREHENSIVE INCOME For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Net Income (loss) $ (868 ) $ (1,529 ) $ (313 ) $ (676 ) $ 2,734 $ (652 ) Other comprehensive income (loss), net of tax Foreign currency translation adjustments (105 ) — — (94 ) 105 (94 ) Realized and unrealized gains on derivatives 11 — — 9 (11 ) 9 Realized and unrealized losses on marketable common stock (1 ) — — (1 ) 1 (1 ) Pension and postretirement plans (1 ) — — (1 ) 1 (1 ) Other comprehensive loss (96 ) — — (87 ) 96 (87 ) Total comprehensive loss (964 ) (1,529 ) (313 ) (763 ) 2,830 (739 ) Comprehensive income attributable to noncontrolling interests — — — 225 — 225 Comprehensive loss attributable to Johnson Controls $ (964 ) $ (1,529 ) $ (313 ) $ (988 ) $ 2,830 $ (964 ) CONDENSED CONSOLIDATING STATEMENT OF FINANCIAL POSITION For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Assets Cash and cash equivalents $ 11 $ — $ 244 $ 324 $ — $ 579 Accounts receivable, net — — — 6,394 — 6,394 Inventories — — — 2,888 — 2,888 Intercompany receivables 16 — 2 6,188 (6,206 ) — Assets held for sale — — — 5,812 — 5,812 Other current assets 6 — 1 1,429 — 1,436 Current assets $ 33 $ — $ 247 $ 23,035 $ (6,206 ) $ 17,109 Property, plant and equipment - net — — — 5,632 — 5,632 Goodwill — — 274 20,750 — 21,024 Other intangible assets - net — — — 7,540 — 7,540 Investments in partially-owned affiliates — — — 990 — 990 Investments in affiliates 12,460 31,405 27,906 — (71,771 ) — Intercompany loans receivable 18,680 — 13,336 15,631 (47,647 ) — Noncurrent assets held for sale — — — 7,374 — 7,374 Other noncurrent assets — — — 3,510 — 3,510 Total assets $ 31,173 $ 31,405 $ 41,763 $ 84,462 $ (125,624 ) $ 63,179 Liabilities and Equity Short-term debt $ — $ — $ — $ 1,078 $ — $ 1,078 Current portion of long-term debt — — — 628 — 628 Accounts payable 1 — — 3,999 — 4,000 Accrued compensation and benefits — — — 1,333 — 1,333 Liabilities held for sale — — — 4,276 — 4,276 Intercompany payables 3,873 — 2,315 18 (6,206 ) — Other current liabilities 3 2 32 4,979 — 5,016 Current liabilities 3,877 2 2,347 16,311 (6,206 ) 16,331 Long-term debt — — 2,413 8,640 — 11,053 Pension and postretirement benefits — — — 1,550 — 1,550 Intercompany loans payable 3,178 18,680 12,453 13,336 (47,647 ) — Noncurrent liabilities held for sale — — — 3,888 — 3,888 Other noncurrent liabilities — — 22 5,011 — 5,033 Long-term liabilities 3,178 18,680 14,888 32,425 (47,647 ) 21,524 Redeemable noncontrolling interest — — — 234 — 234 Ordinary shares 9 — — — — 9 Ordinary shares held in treasury (20 ) — — — — (20 ) Other shareholders' equity 24,129 12,723 24,528 34,520 (71,771 ) 24,129 Shareholders’ equity attributable to Johnson Controls 24,118 12,723 24,528 34,520 (71,771 ) 24,118 Nonredeemable noncontrolling interest — — — 972 — 972 Total equity 24,118 12,723 24,528 35,492 (71,771 ) 25,090 Total liabilities, redeemable noncontrolling interest and equity $ 31,173 $ 31,405 $ 41,763 $ 84,462 $ (125,624 ) $ 63,179 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the Year Ended September 30, 2016 (in millions) Johnson Controls International plc Tyco Fire & Security Finance SCA Tyco International Finance S.A. Other Subsidiaries Consolidating Adjustments Total Operating Activities Net cash provided by operating activities $ 11 $ — $ 639 $ 1,245 $ — $ 1,895 Investing Activities Capital expenditures — — — (1,249 ) — (1,249 ) Sale of property, plant and equipment — — — 32 — 32 Acquisition of business, net of cash acquired — — — 353 — 353 Business divestitures — — — 32 — 32 Changes in long-term investments — — 57 (105 ) — (48 ) Net change in intercompany loans — — 10 — (10 ) — Other — — — (7 ) — (7 ) Net cash provided (used) by investing activities — — 67 (944 ) (10 ) (887 ) Financing Activities Increase (decrease) in short-term debt - net — — (462 ) 1,018 — 556 Increase in long-term debt — — — 1,501 — 1,501 Repayment of long-term debt — — — (1,299 ) — (1,299 ) Debt financing costs — — — (45 ) — (45 ) Stock repurchases — — — (501 ) — (501 ) Payment of cash dividends — — — (915 ) — (915 ) Proceeds from the exercise of stock options 3 — — 67 — 70 Net intercompany loan borrowings — — — (10 ) 10 — Cash paid to acquire a noncontrolling interest — — — (2 ) — (2 ) Dividends paid to noncontrolling interests — — — (306 ) — (306 ) Other (3 ) — — 11 — 8 Net cash provided (used) in financing activities — — (462 ) (481 ) 10 (933 ) Effect of currency translation on cash — — — 12 — 12 Changes in cash held for sale — — — (61 ) — (61 ) Increase (decrease) in cash and cash equivalents 11 — 244 (229 ) — 26 Cash and cash equivalents at beginning of period — — — 553 — 553 Cash and cash equivalents at end of period $ 11 $ — $ 244 $ 324 $ — $ 579

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Sep. 30, 2016
Related Party Transactions [Abstract]
Schedule of Related Party Transactions [Table Text Block]	The following table sets forth the amount of accounts receivable due from and payable to related parties for continuing operations in the consolidated statements of financial position (in millions): September 30, 2016 2015 Receivable from related parties $ 66 $ 50 Payable to related parties 11 14

Summary of Significant Accoun60

Summary of Significant Accounting Policies Carrying Amounts and Classification of Assets and Liabilities for Consolidated VIE's (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Variable Interest Entity [Line Items]
Assets, Current	$ 17,109	$ 10,469
Total assets	63,179	29,590	$ 32,777
Liabilities, Current	16,331	10,446
Liabilities, Noncurrent	21,524	8,434
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Assets, Current	284	281
Assets, Noncurrent	98	128
Total assets	382	409
Liabilities, Current	230	232
Liabilities, Noncurrent	29	34
Liabilities	$ 259	$ 266

Summary of Significant Accoun61

Summary of Significant Accounting Policies Accounting Policies (Details)	Oct. 31, 2016shares	Sep. 30, 2016USD ($)Segment$ / shares	Sep. 30, 2015USD ($)$ / shares	Sep. 30, 2014USD ($)	Sep. 02, 2016$ / shares
Financial Statement Details [Line Items]
Liability for Asbestos and Environmental Claims, Gross		$ 548,000,000
Maturity period to be considered cash equivalents		3 months
Engineering and research and development costs to be reimbursed		$ 316,000,000	$ 299,000,000
Expected reimbursement period of less than one year		1 year
Expected reimbursement period beyond one year		1 year
Molds, dies and other tools costs capitalized within property, plant and equipment		$ 62,000,000	60,000,000
Molds, dies and other tools costs to be reimbursed		203,000,000	149,000,000
Costs and earnings in excess of billings related to contracts		841,000,000	453,000,000
Billing in excess of costs and earnings on uncompleted contracts		$ 431,000,000	340,000,000
Timing of the first deliverable to the last delivery		Approximately four to twelve months
Research activities costs relating to product development and improvement, net of customer reimbursements		$ 158,000,000	134,000,000	$ 125,000,000
Foreign currency transaction losses		$ 95,000,000	119,000,000	$ 8,000,000
Number of reportable segments | Segment		6
Restricted Cash and Cash Equivalents		$ 88,000,000	$ 0
Restricted Cash and Investments, Current		79,000,000
Restricted Cash and Cash Equivalents, Noncurrent		$ 9,000,000
Common stock, par value | $ / shares		$ 0.01	$ 0.01		$ 1
Pooled subscriber assets and related deferred revenue, useful life		15 years
Non-pooled subscriber assets and related deferred revenue, useful life		15 years
Standard chargeback period from dealer for monitoring service cancellations		6 months
Non-standard chargeback period from dealer for monitoring service cancellations		12 months
Minimum
Financial Statement Details [Line Items]
Duration of extended warranty arrangements		1 year
Estimated useful life of dealer intangible assets		12 years
Maximum
Financial Statement Details [Line Items]
Duration of extended warranty arrangements		5 years
Estimated useful life of dealer intangible assets		15 years
Building And Improvements | Minimum
Financial Statement Details [Line Items]
Estimated useful lives		3 years
Building And Improvements | Maximum
Financial Statement Details [Line Items]
Estimated useful lives		40 years
Machinery and Equipment | Minimum
Financial Statement Details [Line Items]
Estimated useful lives		3 years
Machinery and Equipment | Maximum
Financial Statement Details [Line Items]
Estimated useful lives		15 years
Johnson Controls International plc [Member]
Financial Statement Details [Line Items]
Proceeds from Issuance of Unsecured Debt		$ 1,500,000,000
Adient [Member]
Financial Statement Details [Line Items]
Proceeds from Issuance of Unsecured Debt		500,000,000
Asbestos Issue [Member]
Financial Statement Details [Line Items]
Liability for Asbestos and Environmental Claims, Gross		68,000,000
Noncurrent assets held for sale [Domain]
Financial Statement Details [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption		44,000,000
Noncurrent liabilities held for sale [Domain]
Financial Statement Details [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption		44,000,000
Other noncurrent assets
Financial Statement Details [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption		30,000,000	$ 32,000,000
Other noncurrent assets | Asbestos Issue [Member]
Financial Statement Details [Line Items]
Liability for Asbestos and Environmental Claims, Gross		27,000,000
Long-term debt
Financial Statement Details [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption		30,000,000	$ 32,000,000
Retained Earnings | Asbestos Issue [Member]
Financial Statement Details [Line Items]
Liability for Asbestos and Environmental Claims, Gross		$ 41,000,000
Tyco Merger [Member]
Financial Statement Details [Line Items]
Common stock, par value | $ / shares		$ 1
Adient spin-off [Member]
Financial Statement Details [Line Items]
Subsequent Event, Date	Oct. 31, 2016
Adient shares received per 10 shares of Johnson Controls shares | shares	1
Johnson Controls shares converted into one share of Adient | shares	10

Summary of Significant Accoun62

Summary of Significant Accounting Policies Variable Interest Entities, Additional Information (Details) $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)Entity	Sep. 30, 2015USD ($)Entity	Sep. 30, 2014USD ($)	Sep. 30, 2012Entity
Variable Interest Entity [Line Items]
Foreign currency transaction losses | $	$ 95	$ 119	$ 8
Interest Percentage Minimum For Investments In Partially Owned Affiliates To Be Accounted For By Equity Method	20.00%
Number Of Vies In Which Company Was Primary Beneficiary	3	3
Number Of Separate Investments Pre Existing Variable Interest Entities Was Reorganized Into				3
Number Of Vies In Which Company Was Not Primary Beneficiary	2
Additional Interests Acquired				2
Amount Of Debt Co Obliged By Variable Interest Entity | $	$ 170
Loans To Group Entities | $	37
Minimum Proceeds Received | $	25
Variable Interest Entity, Not Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure, Amount | $	$ 59	$ 62
Power Solutions
Variable Interest Entity [Line Items]
Number Of Vies In Which Company Was Primary Beneficiary	1
North America | Automotive Experience
Variable Interest Entity [Line Items]
Number Of Vies In Which Company Was Primary Beneficiary	2

Merger Transaction (Details)

Merger Transaction (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, acquired during period	$ 16,622	$ 34
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	489
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	1,648
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory	829
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	1,062
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	1,224
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill	6,203
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets	560
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets	28,378
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesShortTermDebt	462
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable	711
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Current Liabilities, Accrued Compensation adn Benefits	305
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	1,608
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt	6,416
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent	1,173
Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, NonCurrent Liabilities, Pension and Postretirement Benefits	774
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other	1,088
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	12,537
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, NonControlling Interest	34
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	15,807
Business Combination, Cash Consideration paid to JCI Inc. shareholders	3,864
Business Combination, Consideration Transferred	19,671
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 2,280
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	11 years
Technology-Based Intangible Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 1,530
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years
Other Finite Lived Intangible [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 223
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired	$ 2,020
Other Infinite-Lived Assets [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired	90
In Process Research and Development [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired	60
Building Efficiency | Buildings Tyco [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, acquired during period	16,364
Building Efficiency | Buildings Tyco [Member] | Tyco Merger [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Goodwill, acquired during period	$ 16,363

Merger Transaction Business Acq

Merger Transaction Business Acquisition, Pro Forma Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2016	Sep. 30, 2015
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual	$ 808
Business Acquisition, Pro Forma Revenue		$ 29,647	$ 26,908
Business Acquisition, Pro Forma Income from Continuing Operations, Net of Tax		$ 1,143	$ 848
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual	$ (48)

Merger Transaction Fair Value o

Merger Transaction Fair Value of Consideration Transferred (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)$ / sharesshares	Sep. 02, 2016$ / shares	Sep. 30, 2015$ / shares
Acquiror Closing Share Price | $ / shares	$ 45.45
Business Combination, Consideration Transferred per Share | $ / shares	$ 34.88
Acquiror Market Capitalization at Merger Date	$ 29,012
Business Combination, Cash Consideration paid to JCI Inc. shareholders	$ 3,864
Business Combination, Reduction in Number of Acquiror Shares due to Cash Consideration Paid by Acquiree | shares	110,800,000
Percent Ownership by Shareholders of Acquiror Subsequent to Acquisition	56.00%
Percent Ownership by Shareholders of Acquiree Subsequent to Acquisition	44.00%
Business Combination, Number of Acquiree Shares Outstanding Prior to Acquisition | shares	427,181,743
Business Combination, Share Consolidation Ratio	0.955
Common stock, par value | $ / shares	$ 0.01	$ 1	$ 0.01
Business Combination, Consideration Transferred per Share For Share Election | $ / shares	$ 5.7293
Business Combination, Consideration Transferred, Shares, For Share Election | shares	0.8357
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	407,958,565
Business Acquisition, Share Price | $ / shares	$ 47.67
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 19,447
Business Combination, Consideration Transferred, Fair Value of Acquiree Equity Awards	224
Business Combination, Consideration Transferred	19,671
Fair Value of Acquiree Equity Awards not Earned as of Merger Date	101
Selling, general and administrative
Fair Value of Acquiree Equity Awards not Earned as of Merger Date Expensed During Period	10
Restructuring Charges [Member]
Fair Value of Acquiree Equity Awards not Earned as of Merger Date Expensed During Period	$ 23
Tyco Merger [Member]
Common stock, par value | $ / shares	$ 1

Acquisitions and Divestitures A

Acquisitions and Divestitures Acquisitions (Details)	3 Months Ended		9 Months Ended	12 Months Ended
	Dec. 31, 2015USD ($)	Jun. 30, 2014USD ($)	Jun. 30, 2015USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Business Acquisitions
Payments to acquire businesses, net of cash acquired				$ (353,000,000)	$ 22,000,000	$ 1,733,000,000
Goodwill, acquired during period				16,622,000,000	34,000,000
Non-cash equity gain from acquisition				4,000,000	0	38,000,000
Business Combination, Consideration Transferred				19,671,000,000
Business Acquisitions, Not Specified
Business Acquisitions
Payments to acquire businesses, net of cash acquired				3,000,000	18,000,000	144,000,000
Goodwill, acquired during period				6,000,000	$ 9,000,000	$ 140,000,000
Number of businesses acquired increase ownership from noncontrolling to controlling						3
Non-cash equity gain from acquisition				$ 4,000,000		$ 38,000,000
Number of Businesses Acquired				2	3	4
Business Combination, Consideration Transferred				$ 6,000,000	$ 47,000,000
Customer Relationships
Business Acquisitions
Finite-lived intangible assets acquired				$ 2,280,000,000
Building Efficiency Other | Air Distribution Technologies, Inc.
Business Acquisitions
Goodwill, purchase accounting adjustments			$ 34,000,000
Payments to acquire businesses, net of cash acquired		$ 1,600,000,000	$ 4,000,000
Debt instrument, face amount		1,700,000,000
Goodwill, acquired during period		837,000,000
Finite-lived intangible assets acquired		477,000,000
Building Efficiency Other | Customer Relationships | Air Distribution Technologies, Inc.
Business Acquisitions
Finite-lived intangible assets acquired		$ 475,000,000
Building Efficiency Other | Minimum | Customer Relationships | Air Distribution Technologies, Inc.
Business Acquisitions
Finite-lived intangible asset, useful life		18 years
Building Efficiency Other | Maximum | Customer Relationships | Air Distribution Technologies, Inc.
Business Acquisitions
Finite-lived intangible asset, useful life		20 years
Power Solutions | Business Acquisitions, Not Specified
Business Acquisitions
Non-cash equity gain from acquisition						$ 19,000,000
Building Efficiency Asia | Hitachi Joint Venture [Member]
Business Acquisitions
Business Acquisition, Percentage of Voting Interests Acquired	60.00%
Goodwill, acquired during period	$ 253,000,000
Payments to Acquire Interest in Joint Venture	133,000,000
Purchase Price of Joint Venture	563,000,000
Cash Acquired from Acquisition	$ 430,000,000
Building Efficiency Asia | Business Acquisitions, Not Specified
Business Acquisitions
Non-cash equity gain from acquisition						19,000,000
Trade Names | Building Efficiency Other | Air Distribution Technologies, Inc.
Business Acquisitions
Indefinite-lived Intangible Assets Acquired		$ 230,000,000
Assets held for sale | Business Acquisitions, Not Specified
Business Acquisitions
Goodwill, purchase accounting adjustments						$ 2,000,000

Acquisitions and Divestitures D

Acquisitions and Divestitures Divestitures (Details) $ in Millions	3 Months Ended							12 Months Ended
	Sep. 30, 2016USD ($)	Jun. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Dec. 31, 2013USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Divestitures [Line Items]
Goodwill, written off related to divestiture								$ 19	$ 16
Proceeds from divestitures								32	1,646	$ 225
(Gain) loss on divestitures								$ 26	$ 1,340	$ (111)
Building Efficiency Systems and Service North America [Member]
Divestitures [Line Items]
Sales Price of Business Divestitures		$ 16
Goodwill, written off related to divestiture		3
(Gain) loss on divestitures		$ 14
Series of Individually Immaterial Business Acquisitions [Member]
Divestitures [Line Items]
Number of Businesses Acquired								2	3	4
CBRE Group, Inc. [Member] [Member] | Global Workplace Solutions
Divestitures [Line Items]
Income from discontinued operations before income taxes			$ 940						$ (940)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			643
Income tax expense from disposal									297
Goodwill, written off related to divestiture			220
Proceeds from divestitures			1,400
Yanfeng Automotive Trim Systems [Member] | Automotive Experience Interiors
Divestitures [Line Items]
Income from discontinued operations before income taxes			145
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			38
Goodwill, written off related to divestiture			$ 21
Brookfield Johnson Controls [Member] | Global Workplace Solutions
Divestitures [Line Items]
Number of Joint Ventures Divested				2
Proceeds from Divestiture of Interest in Joint Venture				$ 141
Income from discontinued operations before income taxes				200					(200)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax				127
Income tax expense from disposal									73
Goodwill, written off related to divestiture				$ 20
Headliner and Sunvisor [Member]
Divestitures [Line Items]
Cash paid to buyer in divestiture					$ 54
Gain (loss) on divestiture					(95)
Income tax expense from disposal					38
Goodwill, written off related to divestiture					0
Business Divestitures, 2004 | Global Workplace Solutions
Divestitures [Line Items]
Gain (loss) on divestiture					$ (25)					$ 25
Automotive Experience Electronics
Divestitures [Line Items]
Income from discontinued operations before income taxes										8
Proceeds from divestitures						$ 266
Business Divestitures, Not Specific
Divestitures [Line Items]
Gain (loss) on divestiture	$ 12
Proceeds from divestitures	39								$ 119
Cash Divested from Deconsolidation	$ 13
Number of businesses divested	2								4
Proceeds from Divestiture of Businesses, Net of Cash Divested								$ 29	$ 86
Business Divestitures, Not Specific | Building Efficiency Systems and Service North America [Member]
Divestitures [Line Items]
Gain (loss) on divestiture									7
Goodwill, written off related to divestiture									2
Business Divestitures, Not Specific | Automotive Experience Seating
Divestitures [Line Items]
Gain (loss) on divestiture									10
Business Divestitures, Not Specific | Automotive Experience Interiors
Divestitures [Line Items]
Gain (loss) on divestiture							$ 9
Goodwill, written off related to divestiture							0
Proceeds from divestitures							$ 13
Number of businesses divested							1
Business Divestitures, Not Specific | Building Efficiency Products North America [Member]
Divestitures [Line Items]
Gain (loss) on divestiture									38
Goodwill, written off related to divestiture	$ 3								14
Business Divestitures, Not Specific | Building Efficiency Other
Divestitures [Line Items]
Goodwill, written off related to divestiture	$ 13
Assets held for sale | Series of Individually Immaterial Business Acquisitions [Member]
Divestitures [Line Items]
Goodwill, purchase accounting adjustments										$ 2
Assets held for sale | Business Divestitures, Not Specific | Automotive Experience Seating
Divestitures [Line Items]
Goodwill, written off related to divestiture									$ 4

Discontinued Operations Disco68

Discontinued Operations Discontinued Operations (Details) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations attributable to noncontrolling interests	$ 84,000,000	$ 70,000,000	$ 90,000,000
Income (loss) from discontinued operations	1,600,000,000	(749,000,000)	(309,000,000)
Automotive Experience Electronics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales			1,027,000,000
Income from discontinued operations before income taxes			8,000,000
Provision for income taxes on discontinued operations			202,000,000
Income from discontinued operations attributable to noncontrolling interests			8,000,000
Income (loss) from discontinued operations	$ 0	$ 0	$ (218,000,000)

Discontinued Operations Disco69

Discontinued Operations Discontinued Operations Additional Information (Details)	3 Months Ended								12 Months Ended
	Jun. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Sep. 30, 2015USD ($)	Jun. 30, 2015USD ($)	Mar. 31, 2015USD ($)	Sep. 30, 2014USD ($)	Jun. 30, 2014USD ($)	Mar. 31, 2014USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and impairment costs									$ 288,000,000	$ 215,000,000	$ 165,000,000
Defined Benefit Plan, Amortization of Gains (Losses)									393,000,000	416,000,000	187,000,000
Transaction and separation costs										52,000,000
Gain on Disposition of Business									26,000,000	1,340,000,000	(111,000,000)
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount		$ 780,000,000
Deferred income taxes									(765,000,000)	242,000,000	(212,000,000)
Income from discontinued operations attributable to noncontrolling interests									84,000,000	70,000,000	90,000,000
Income (loss) from discontinued operations									1,600,000,000	(749,000,000)	(309,000,000)
Income tax provision									197,000,000	71,000,000	93,000,000
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (85,000,000)					$ (51,000,000)			(29,000,000)	(7,000,000)	(36,000,000)
Adient [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Separation costs									418,000,000
Restructuring and impairment costs									332,000,000	182,000,000	159,000,000
Defined Benefit Plan, Amortization of Gains (Losses)									110,000,000	6,000,000	50,000,000
Automotive Experience
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Deferred income taxes									24,000,000
Adient spin-off [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales									16,837,000,000	20,079,000,000	22,032,000,000
Income from discontinued operations before income taxes									525,000,000	1,220,000,000	879,000,000
Gain on Disposition of Business									0	155,000,000	86,000,000
Deferred income taxes									(476,000,000)	(50,000,000)	(90,000,000)
Provision for income taxes on discontinued operations									2,041,000,000	529,000,000	314,000,000
Income from discontinued operations attributable to noncontrolling interests									84,000,000	66,000,000	67,000,000
Income (loss) from discontinued operations									(1,600,000,000)	625,000,000	498,000,000
Headliner and Sunvisor [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on divestiture							$ 95,000,000
Discontinued Operation, Tax Effect of Gain from Disposal of Discontinued Operation							38,000,000
Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss from Disposal of Discontinued Operation, before Income Tax											(80,000,000)
Tangible and Intangible Asset Impairment Charges											43,000,000
Transaction costs, divestiture related											27,000,000
Severance Costs											10,000,000
Global Workplace Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales										3,025,000,000	4,079,000,000
Income from discontinued operations before income taxes										(1,203,000,000)	(119,000,000)
Transaction costs, divestiture related										87,000,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount										680,000,000	35,000,000
Provision for income taxes on discontinued operations										1,075,000,000	75,000,000
Income from discontinued operations attributable to noncontrolling interests										4,000,000	15,000,000
Income (loss) from discontinued operations										124,000,000	29,000,000
Automotive Experience Electronics
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales											1,027,000,000
Income from discontinued operations before income taxes											8,000,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount								$ 180,000,000
Provision for income taxes on discontinued operations											202,000,000
Income from discontinued operations attributable to noncontrolling interests											8,000,000
Income (loss) from discontinued operations									0	0	(218,000,000)
Automotive Experience Interiors | Yanfeng Automotive Trim Systems [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes			$ 145,000,000
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			38,000,000
Automotive Experience Interiors | Interiors
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			223,000,000	$ 75,000,000
Global Workplace Solutions | Business Divestitures, 2004
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on divestiture							$ 25,000,000				$ (25,000,000)
Global Workplace Solutions | Brookfield Johnson Controls [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes					$ 200,000,000					(200,000,000)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax					$ 127,000,000
Number of Joint Ventures Divested					2
Discontinued Operation, Tax Effect of Gain from Disposal of Discontinued Operation										73,000,000
Global Workplace Solutions | CBRE Group, Inc. [Member] [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes			940,000,000							(940,000,000)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			$ 643,000,000
Ongoing Strategic Relationship With Buyer in Divestiture of Business					10 years
Discontinued Operation, Tax Effect of Gain from Disposal of Discontinued Operation										$ 297,000,000
Adient spin-off [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax provision									95,000,000
Substantial business reorganizations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount									$ 1,891,000,000

Discontinued Operations Asset70

Discontinued Operations Assets and Liabilities Held for Sale Additional Information (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	$ 5,812	$ 3,759
Disposal Group, Including Discontinued Operation, Liabilities	4,276	3,998
Buildings Tyco [Member]
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	157
Disposal Group, Including Discontinued Operation, Liabilities	28
Corporate
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	$ 17
Automotive Experience Interiors
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale		55
Disposal Group, Including Discontinued Operation, Liabilities		$ 42

Discontinued Operations Asset71

Discontinued Operations Assets and Liabilities Held for Sale (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	$ 5,812	$ 3,759
Buildings Tyco [Member]
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	157
Buildings Tyco [Member] | Security business in South Africa [Member]
Assets and Liabilities Held for Sale [Line Items]
Accounts receivable - net	9
Inventories	7
Other current assets	3
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment	15
Disposal Group, Including Discontinued Operation, Goodwill	89
Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent	30
Other noncurrent assets	4
Assets held for sale	157
Accounts payable	9
Other current liabilities	19
Liabilities held for sale	$ 28

Discontinued Operations Adient

Discontinued Operations Adient discontinued operations (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations attributable to noncontrolling interests	$ 84	$ 70	$ 90
Income (loss) from discontinued operations	1,600	(749)	(309)
Adient spin-off [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Sales	16,837	20,079	22,032
Income from discontinued operations before income taxes	525	1,220	879
Provision for income taxes on discontinued operations	2,041	529	314
Income from discontinued operations attributable to noncontrolling interests	84	66	67
Income (loss) from discontinued operations	$ (1,600)	$ 625	$ 498

Discontinued Operations Adien73

Discontinued Operations Adient Asset Held for Sale (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	$ 5,812	$ 3,759
Noncurrent assets held for sale	7,374	6,854
Current portion of long-term	38	7
Long-term debt	3,441	346
Noncurrent liabilities held for sale	3,888	828
Adient spin-off [Member]
Assets and Liabilities Held for Sale [Line Items]
Cash	105	44
Cash in escrow related to Adient debt	2,034	0
Accounts receivable - net	2,071	2,134
Inventories	672	712
Other current assets	756	814
Assets held for sale	5,638	3,704
Property, plant and equipment - net	2,240	2,187
Goodwill	2,385	2,364
Other intangible assets - net	113	129
Investments in partially-owned affiliates	1,745	1,646
Other noncurrent assets	891	528
Noncurrent assets held for sale	7,374	6,854
Short-term debt	41	17
Current portion of long-term	38	7
Accounts payable	2,764	2,594
Accrued compensation and benefits	430	392
Other current liabilities	975	946
Liabilities held for sale	4,248	3,956
Long-term debt	3,441	346
Pension and postretirement benefits	188	118
Other noncurrent liabilities	259	364
Noncurrent liabilities held for sale	$ 3,888	$ 828

Discontinued Operations Adien74

Discontinued Operations Adient Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	$ 953	$ 860	$ 955
Pension and postretirement benefit expense	460	396	321
Equity in earnings of partially-owned affiliates	250	144	153
Deferred income taxes	(765)	242	(212)
Non-cash restructuring and impairment charges	221	183	181
(Gain) loss on divestitures	26	1,340	(111)
Equity-based compensation	142	90	82
Other	5	(1)	(2)
Capital expenditures	1,249	1,135	1,199
Adient spin-off [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization	331	333	428
Pension and postretirement benefit expense	113	15	63
Equity in earnings of partially-owned affiliates	(357)	(295)	(285)
Deferred income taxes	(476)	(50)	(90)
Non-cash restructuring and impairment charges	87	27	52
(Gain) loss on divestitures	0	155	86
Equity-based compensation	16	16	14
Other	2	4	(3)
Capital expenditures	$ 395	$ 455	$ 538

Inventories Schedule of Invento

Inventories Schedule of Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 852	$ 534
Work-in-process	503	329
Finished goods	1,533	802
Inventories	$ 2,888	$ 1,665

Property, Plant and Equipment S

Property, Plant and Equipment Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Abstract]
Buildings and improvements	$ 2,107	$ 1,767
Subscriber systems, Gross	448	0
Machinery and equipment	5,137	4,151
Construction in progress	990	653
Land	367	183
Total property, plant and equipment	9,049	6,754
Less accumulated depreciation	(3,417)	(3,071)
Property, plant and equipment - net	$ 5,632	$ 3,683	$ 3,847

Property, Plant and Equipment77

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Buildings and Improvements, Gross	$ 2,107	$ 1,767
Interest costs capitalized	19	25	$ 28
Accumulated depreciation related to capital leases	16	13
Land	$ 367	$ 183

Goodwill and Other Intangible78

Goodwill and Other Intangible Assets Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Jun. 30, 2016	Sep. 30, 2014	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Roll Forward]
Goodwill, Beginning Balance			$ 4,460	$ 4,571
Business Acquisitions			16,622	34
Business Divestitures			(19)	(16)
Currency Translation and Other			(39)	(129)
Goodwill, Ending Balance		$ 4,571	21,024	4,460
Power Solutions
Goodwill [Roll Forward]
Goodwill, Beginning Balance			1,082	1,142
Business Acquisitions			0	0
Business Divestitures			0	0
Currency Translation and Other			4	(60)
Goodwill, Ending Balance		1,142	1,086	1,082
Building Efficiency Systems and Service North America [Member]
Goodwill [Roll Forward]
Business Divestitures	$ (3)
Building Efficiency Systems and Service North America [Member] | Building Efficiency
Goodwill [Roll Forward]
Goodwill, Beginning Balance			978	982
Business Acquisitions			0	0
Business Divestitures			(3)	(2)
Currency Translation and Other			0	(2)
Goodwill, Ending Balance		982	975	978
Building Efficiency Products North America [Member] | Building Efficiency
Goodwill [Roll Forward]
Goodwill, Beginning Balance			1,701	1,688
Business Acquisitions			0	34
Business Divestitures			(3)	(14)
Currency Translation and Other			(1)	(7)
Goodwill, Ending Balance		1,688	1,697	1,701
Building Efficiency Asia | Building Efficiency
Goodwill [Roll Forward]
Goodwill, Beginning Balance			389	414
Business Acquisitions			253	0
Business Divestitures			0	0
Currency Translation and Other			15	(25)
Goodwill, Ending Balance		414	657	389
Building Efficiency Other | Building Efficiency
Goodwill [Roll Forward]
Goodwill, Beginning Balance			310	345
Business Acquisitions			5	0
Business Divestitures			(13)	0
Impairments		(47)
Currency Translation and Other			(1)	(35)
Goodwill, Ending Balance		$ 345	301	310
Buildings Tyco [Member] | Building Efficiency
Goodwill [Roll Forward]
Goodwill, Beginning Balance			0
Business Acquisitions			16,364
Business Divestitures			0
Currency Translation and Other			(56)
Goodwill, Ending Balance			$ 16,308	$ 0

Goodwill and Other Intangible79

Goodwill and Other Intangible Assets Goodwill Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2016	Sep. 30, 2015
Goodwill [Line Items]
Goodwill, acquired during period		$ 16,622,000,000	$ 34,000,000
Goodwill, written off related to divestiture		19,000,000	16,000,000
Goodwill	$ 4,571,000,000	21,024,000,000	4,460,000,000
Building Efficiency | Buildings Tyco [Member]
Goodwill [Line Items]
Goodwill, acquired during period		16,364,000,000
Goodwill, written off related to divestiture		0
Goodwill		16,308,000,000	0
Building Efficiency | Building Efficiency Other
Goodwill [Line Items]
Goodwill, acquired during period		5,000,000	0
Goodwill, written off related to divestiture		13,000,000	0
Goodwill impairment loss	47,000,000
Goodwill	$ 345,000,000	301,000,000	310,000,000
Latin America [Member] | Building Efficiency Other
Goodwill [Line Items]
Goodwill		0	$ 0
Tyco Merger [Member] | Building Efficiency | Buildings Tyco [Member]
Goodwill [Line Items]
Goodwill, acquired during period		$ 16,363,000,000

Goodwill and Other Intangible80

Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Intangible Assets [Line Items]
Future amortization expense, 2017	$ 537
Gross carrying amount, total intangible assets	7,920	$ 1,706
Net, Total Intangible Assets	7,540	1,387
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	5,215	1,164
Accumulated Amortization	(380)	(319)
Net, Total Amortized Intangible Assets	4,835	845
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Carrying Amount, Gross and Net	2,705	542
Patented Technology
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	1,528	53
Accumulated Amortization	(24)	(48)
Net, Total Amortized Intangible Assets	1,504	5
Customer Relationships
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	3,168	875
Accumulated Amortization	(226)	(168)
Net, Total Amortized Intangible Assets	2,942	707
Miscellaneous
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	519	236
Accumulated Amortization	(130)	(103)
Net, Total Amortized Intangible Assets	389	133
Trademarks
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Carrying Amount, Gross and Net	2,555	542
Miscellaneous
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Carrying Amount, Gross and Net	150	$ 0
Adient spin-off [Member]
Intangible Assets [Line Items]
Future amortization expense, 2017	$ 430

Goodwill and Other Intangible81

Goodwill and Other Intangible Assets Other Intangible Assets Additional Information (Details) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 116,000,000	$ 74,000,000	$ 61,000,000
Future amortization expense, 2017	537,000,000
Future amortization expense, 2018	424,000,000
Future amortization expense, 2019	407,000,000
Future amortization expense, 2020	398,000,000
Future amortization expense, 2021	390,000,000
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)	$ 0	$ 0	$ 0

Leases (Details)

Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Leases [Abstract]
Leased capital assets included in net property, plant and equipment, primarily buildings and improvements	$ 23	$ 24
Total rental expense	$ 402	$ 413	$ 459

Leases Future Minimum Capital a

Leases Future Minimum Capital and Operating Lease Payments and Related Present Value of Capital Lease Payments (Details) $ in Millions	Sep. 30, 2016USD ($)
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases, 2016	$ 5
Capital Leases, 2017	4
Capital Leases, 2018	3
Capital Leases, 2019	3
Capital Leases, 2020	3
Capital Leases, After 2020	12
Capital Leases, Total minimum lease payments	30
Interest	(6)
Present value of net minimum lease payments	24
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, 2016	406
Operating Leases, 2017	310
Operating Leases, 2018	227
Operating Leases, 2019	156
Operating Leases, 2020	98
Operating Leases, After 2020	155
Operating Leases, Total minimum lease payments	$ 1,352

Debt and Financing Arrangemen84

Debt and Financing Arrangements Short-Term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Debt Disclosure [Abstract]
Short-term Debt	$ 1,078	$ 35
Short-term Debt, Weighted Average Interest Rate	1.10%	4.00%

Debt and Financing Arrangemen85

Debt and Financing Arrangements Long-Term Debt (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Debt Instrument [Line Items]
Other Long-term Debt	$ 39	$ 57
Capital lease obligations	24	48
Long-term Debt and Capital Lease Obligations, Including Current Maturities	15,234	6,558
Less: current portion	628	806
Less: debt issuance costs	74	32
Current portion of long-term	38	7
Less: long-term debt - noncurrent liabilities held for sale	3,441	346
Net long-term debt	11,053	5,367
5.5 % Due in 2016
Debt Instrument [Line Items]
Long-term Debt	0	800
7.125 % Due in 2017
Debt Instrument [Line Items]
Long-term Debt	149	153
2.6 % Due in 2017
Debt Instrument [Line Items]
Long-term Debt	404	404
2.355 % Due in 2017
Debt Instrument [Line Items]
Long-term Debt	46	46
1.4% Due in 2018
Debt Instrument [Line Items]
Long-term Debt	301	303
5.0 % Due in 2020
Debt Instrument [Line Items]
Long-term Debt	499	499
4.25% Due in 2021
Debt Instrument [Line Items]
Long-term Debt	498	498
3.75 % Due in 2022
Debt Instrument [Line Items]
Long-term Debt	448	448
3.625% Due in 2024
Debt Instrument [Line Items]
Long-term Debt	500	500
6.0 % Due in 2036
Debt Instrument [Line Items]
Long-term Debt	396	395
5.7 % Due in 2041
Debt Instrument [Line Items]
Long-term Debt	299	299
5.25 % Due in 2042
Debt Instrument [Line Items]
Long-term Debt	250	250
4.625% Due in 2044
Debt Instrument [Line Items]
Long-term Debt	447	447
6.95 % Due in 2046
Debt Instrument [Line Items]
Long-term Debt	125	125
4.95% Due in 2064
Debt Instrument [Line Items]
Long-term Debt	449	449
Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	900
Euro Member Countries, Euro | Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	61	529
Japan, Yen | Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	367	308
Adient [Member] | Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Long-term Debt	1,119	0
Adient [Member] | Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	900	0
Adient [Member] | LIBOR plus One Point Zero Zero Five Percent Due Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Long-term Debt	1,500	0
Three Point Seven Five Percent Due in Two Thousand Eighteen [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Long-term Debt	69	0
Four Point Six Two Five Percent Due in Two Thousand Twenty Three [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Long-term Debt	46	0
One Point Three Seven Five Percent Due in Two Thousand Twenty Five [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Long-term Debt	571	0
Three Point Ninety Percent Due in Two Thousand Twenty Six [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Long-term Debt	824	0
Five Point One Two Five Percent Due in Two Thousand Forty Five [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Long-term Debt	903	0
LIBOR plus One Point Five Percent Due in Two Thousand Twenty [Member] | Tyco International Holding S.a.r.L. (TSarL) [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 4,000	$ 0

Long-Term Debt Additional Detai

Long-Term Debt Additional Details (Details)	Sep. 30, 2016USD ($)	Sep. 30, 2016EUR (€)	Sep. 30, 2015USD ($)	Sep. 30, 2015EUR (€)
5.5 % Due in 2016
Debt Instrument [Line Items]
Interest rate on notes	5.50%	5.50%	5.50%	5.50%
Debt instrument, face amount	$ 800,000,000		$ 800,000,000
7.125 % Due in 2017
Debt Instrument [Line Items]
Interest rate on notes	7.125%	7.125%	7.125%	7.125%
Debt instrument, face amount	$ 150,000,000		$ 150,000,000
2.6 % Due in 2017
Debt Instrument [Line Items]
Interest rate on notes	2.60%	2.60%	2.60%	2.60%
Debt instrument, face amount	$ 400,000,000		$ 400,000,000
2.355 % Due in 2017
Debt Instrument [Line Items]
Interest rate on notes	2.355%	2.355%	2.355%	2.355%
Debt instrument, face amount	$ 46,000,000		$ 46,000,000
1.4% Due in 2018
Debt Instrument [Line Items]
Interest rate on notes	1.40%	1.40%	1.40%	1.40%
Debt instrument, face amount	$ 300,000,000		$ 300,000,000
5.0 % Due in 2020
Debt Instrument [Line Items]
Interest rate on notes	5.00%	5.00%	5.00%	5.00%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
4.25% Due in 2021
Debt Instrument [Line Items]
Interest rate on notes	4.25%	4.25%	4.25%	4.25%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
3.75 % Due in 2022
Debt Instrument [Line Items]
Interest rate on notes	3.75%	3.75%	3.75%	3.75%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
3.625% Due in 2024
Debt Instrument [Line Items]
Interest rate on notes	3.625%	3.625%	3.625%	3.625%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
6.0 % Due in 2036
Debt Instrument [Line Items]
Interest rate on notes	6.00%	6.00%	6.00%	6.00%
Debt instrument, face amount	$ 400,000,000		$ 400,000,000
5.7 % Due in 2041
Debt Instrument [Line Items]
Interest rate on notes	5.70%	5.70%	5.70%	5.70%
Debt instrument, face amount	$ 300,000,000		$ 300,000,000
5.25 % Due in 2042
Debt Instrument [Line Items]
Interest rate on notes	5.25%	5.25%	5.25%	5.25%
Debt instrument, face amount	$ 250,000,000		$ 250,000,000
4.625% Due in 2044
Debt Instrument [Line Items]
Interest rate on notes	4.625%	4.625%	4.625%	4.625%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
6.95 % Due in 2046
Debt Instrument [Line Items]
Interest rate on notes	6.95%	6.95%	6.95%	6.95%
Debt instrument, face amount	$ 125,000,000		$ 125,000,000
4.95% Due in 2064
Debt Instrument [Line Items]
Interest rate on notes	4.95%	4.95%	4.95%	4.95%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Interest rate on notes	3.50%	3.50%
Debt instrument, face amount | €		€ 1,000,000,000
Adient [Member] | 4.95% Due in 2064
Debt Instrument [Line Items]
Interest rate on notes	4.875%	4.875%	4.875%	4.875%
Debt instrument, face amount	$ 900,000,000		$ 900,000,000
Adient [Member] | Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Interest rate on notes	3.50%	3.50%	3.50%	3.50%
Debt instrument, face amount | €		€ 1,000,000,000		€ 1,000,000,000
Adient [Member] | LIBOR plus One Point Zero Zero Five Percent Due Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Interest rate on notes	1.005%	1.005%	1.005%	1.005%
Tyco International Holding S.a.r.L. (TSarL) [Member] | LIBOR plus One Point Five Percent Due in Two Thousand Twenty [Member]
Debt Instrument [Line Items]
Interest rate on notes	1.50%	1.50%	1.50%	1.50%
Three Point Seven Five Percent Due in Two Thousand Eighteen [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Interest rate on notes	3.75%	3.75%	3.75%	3.75%
Debt instrument, face amount	$ 67,000,000		$ 67,000,000
Four Point Six Two Five Percent Due in Two Thousand Twenty Three [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Interest rate on notes	4.625%	4.625%	4.625%	4.625%
Debt instrument, face amount	$ 42,000,000		$ 42,000,000
One Point Three Seven Five Percent Due in Two Thousand Twenty Five [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Interest rate on notes	1.375%	1.375%	1.375%	1.375%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
Three Point Ninety Percent Due in Two Thousand Twenty Six [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Interest rate on notes	3.90%	3.90%	3.90%	3.90%
Debt instrument, face amount	$ 750,000,000		$ 750,000,000
Five Point One Two Five Percent Due in Two Thousand Forty Five [Member] | Tyco International Finance S.A. (TIFSA) [Member]
Debt Instrument [Line Items]
Interest rate on notes	5.125%	5.125%	5.125%	5.125%
Debt instrument, face amount	$ 750,000,000		$ 750,000,000

Debt and Financing Arrangemen87

Debt and Financing Arrangements Short and Long-term Debt Additional Information (Details) € in Millions	3 Months Ended						12 Months Ended
	Mar. 31, 2016EUR (€)	Dec. 31, 2015	Sep. 30, 2015USD ($)	Sep. 30, 2015EUR (€)	Jun. 30, 2015	Mar. 31, 2015USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2016EUR (€)	Mar. 31, 2016USD ($)
Debt Instrument [Line Items]
Amount Of Credit Facility Retired | €										€ 390
Interest paid on short and long-term debt							$ 319,000,000	$ 373,000,000	$ 314,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
Installments of long-term debt maturing 2016							666,000,000
Installments of long-term debt maturing 2017							454,000,000
Installments of long-term debt maturing 2018							94,000,000
Installments of long-term debt maturing 2019							5,056,000,000
Installments of long-term debt maturing 2020							1,642,000,000
Installments of long-term debt maturing 2021 and thereafter							7,322,000,000
100 Million USD floating rate term loan maturing in Nov 2016 [Domain]
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Term	9 months
Short-term Bank Loans and Notes Payable | €										100
Commercial Paper
Debt Instrument [Line Items]
Average outstanding commercial paper							1,418,000,000	1,537,000,000
Outstanding commercial paper at period end							440,000,000
37 billion yen floating rate syndicated term loan maturing in June 2020
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Term					5 years
70 million euro floating rate credit facility
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount | €				€ 70
7.7 % Due in 2015
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount						$ 125,000,000
150 million USD floating rate term loan maturing in September 2015
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount								150,000,000
90 million USD revolving credit facility
Debt Instrument [Line Items]
Proceeds from Lines of Credit						90,000,000
Line of Credit Facility, Maximum Borrowing Capacity						$ 90,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount			$ 90,000,000					90,000,000
Debt Instrument, Term						1 year
500 million USD floating rate term loan maturing in September 2015
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount								500,000,000
100 million USD floating rate term loan maturing in September 2015
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount								100,000,000
37 Million euro revolving credit facility [Domain]
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt retired, amount | €	€ 37
100 Million euro revolving credit facility [Domain]
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Term	9 months
Short-term Bank Loans and Notes Payable | €										€ 100
200 Million USD floating rate term loan maturing in October 2016 [Domain]
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Term	10 months
Short-term Bank Loans and Notes Payable							200,000,000
125 Million USD floating term loan maturing in October 2016 [Domain]
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt Instrument, Term		10 months
Short-term Bank Loans and Notes Payable							125,000,000
Committed Five-year Credit Facility
Debt Instrument [Line Items]
Amount Of Credit Facility Retired			$ 2,500,000,000					$ 2,500,000,000
Length of Credit Facility			5 years	5 years
Contingent on consumation of Tyco merger [Domain] | 2.0 billion USD revolving credit facility [Domain]
Debt Instrument [Line Items]
Proceeds from Lines of Credit							$ 0
Line of Credit Facility, Maximum Borrowing Capacity											$ 2,000,000,000
Length of Credit Facility							4 years
Euro Member Countries, Euro | Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Weighted-average interest rate of debt			1.10%				1.30%	1.10%		1.30%
Tyco International Holding S.a.r.L. (TSarL) [Member] | 1.0 billion USD revolving credit facility [Domain] [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 1,000,000,000
Length of Credit Facility							4 years

Debt and Financing Arrangemen88

Debt and Financing Arrangements Financing Arrangements (Details) ¥ in Billions	3 Months Ended								12 Months Ended
	Sep. 30, 2016USD ($)	Mar. 31, 2016USD ($)	Mar. 31, 2016EUR (€)	Dec. 31, 2015	Sep. 30, 2015USD ($)	Sep. 30, 2015EUR (€)	Jun. 30, 2015EUR (€)	Mar. 31, 2015USD ($)	Sep. 30, 2016USD ($)	Sep. 30, 2016EUR (€)	Sep. 30, 2015USD ($)	Sep. 30, 2016EUR (€)	Sep. 30, 2015EUR (€)	Jun. 30, 2015JPY (¥)
Debt Instrument [Line Items]
Amount Of Credit Facility Retired | €												€ 390,000,000
Number of term loans repaid									3	3
Debt traunches									4	4
Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 900,000,000								$ 900,000,000
Interest rate on notes	4.875%								4.875%			4.875%
Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Debt instrument, face amount | €												€ 1,000,000,000
Interest rate on notes	3.50%								3.50%			3.50%
135 million USD revolving credit facility
Debt Instrument [Line Items]
Amount of credit facility	$ 135,000,000								$ 135,000,000
1.4% Due in 2018
Debt Instrument [Line Items]
Long-term Debt	301,000,000				$ 303,000,000				301,000,000		$ 303,000,000
Debt instrument, face amount	$ 300,000,000				$ 300,000,000				$ 300,000,000		$ 300,000,000
Interest rate on notes	1.40%				1.40%				1.40%		1.40%	1.40%	1.40%
3.625% Due in 2024
Debt Instrument [Line Items]
Long-term Debt	$ 500,000,000				$ 500,000,000				$ 500,000,000		$ 500,000,000
Debt instrument, face amount	$ 500,000,000				$ 500,000,000				$ 500,000,000		$ 500,000,000
Interest rate on notes	3.625%				3.625%				3.625%		3.625%	3.625%	3.625%
237 Million Euro Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Amount Outstanding During Period | €										€ 0
4.625% Due in 2044
Debt Instrument [Line Items]
Long-term Debt	$ 447,000,000				$ 447,000,000				$ 447,000,000		$ 447,000,000
Debt instrument, face amount	$ 450,000,000				$ 450,000,000				$ 450,000,000		$ 450,000,000
Interest rate on notes	4.625%				4.625%				4.625%		4.625%	4.625%	4.625%
4.95% Due in 2064
Debt Instrument [Line Items]
Long-term Debt	$ 449,000,000				$ 449,000,000				$ 449,000,000		$ 449,000,000
Debt instrument, face amount	$ 450,000,000				$ 450,000,000				$ 450,000,000		$ 450,000,000
Interest rate on notes	4.95%				4.95%				4.95%		4.95%	4.95%	4.95%
70 million euro floating rate credit facility
Debt Instrument [Line Items]
Long-term Debt | €							€ 70,000,000
Repayments of Debt | €							€ 32,000,000
Committed Five-year Credit Facility
Debt Instrument [Line Items]
Amount Of Credit Facility Retired					$ 2,500,000,000						$ 2,500,000,000
Length of Credit Facility					5 years	5 years
Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	10 years
Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	8 years
500 million USD floating rate term loan maturing in September 2016 [Member]
Debt Instrument [Line Items]
Debt retired, amount	$ 500,000,000
100 Million USD floating rate term loan maturing in Nov 2016 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Term		9 months	9 months
Short-term Bank Loans and Notes Payable | €												€ 100,000,000
37 Million euro revolving credit facility [Domain]
Debt Instrument [Line Items]
Debt retired, amount | €			€ 37,000,000
100 Million euro revolving credit facility [Domain]
Debt Instrument [Line Items]
Debt Instrument, Term		9 months	9 months
Short-term Bank Loans and Notes Payable | €												€ 100,000,000
200 Million USD floating rate term loan maturing in October 2016 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Term		10 months	10 months
Short-term Bank Loans and Notes Payable	200,000,000								$ 200,000,000
125 Million USD floating term loan maturing in October 2016 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Term				10 months
Short-term Bank Loans and Notes Payable	125,000,000								$ 125,000,000
5.5 % Due in 2016
Debt Instrument [Line Items]
Debt retired, amount		$ 800,000,000
Interest rate on notes		0.00%
125 Million USD floating rate term loan maturing in Sept 2016 [Member]
Debt Instrument [Line Items]
Debt retired, amount	125,000,000
200 Million USD floating rate term loan maturing in Sept 2016 [Domain]
Debt Instrument [Line Items]
Debt retired, amount	200,000,000
90 million USD revolving credit facility
Debt Instrument [Line Items]
Debt Instrument, Term								1 year
Amount of credit facility								$ 90,000,000
Debt retired, amount					$ 90,000,000						90,000,000
Proceeds from Lines of Credit								90,000,000
500 million USD floating rate term loan maturing in September 2015
Debt Instrument [Line Items]
Debt retired, amount											500,000,000
150 million USD floating rate term loan maturing in September 2015
Debt Instrument [Line Items]
Debt retired, amount											150,000,000
70 million euro floating rate credit facility
Debt Instrument [Line Items]
Debt retired, amount | €						€ 70,000,000
100 million USD floating rate term loan maturing in September 2015
Debt Instrument [Line Items]
Debt retired, amount											100,000,000
37 billion yen floating rate syndicated term loan maturing in June 2020
Debt Instrument [Line Items]
Debt Instrument, Term							5 years
Long-term Debt | ¥														¥ 37
7.7 % Due in 2015
Debt Instrument [Line Items]
Debt retired, amount								$ 125,000,000
Interest rate on notes								0.00%
Contingent on consumation of Tyco merger [Domain] | 2.0 billion USD revolving credit facility [Domain]
Debt Instrument [Line Items]
Amount of credit facility		$ 2,000,000,000
Length of Credit Facility									4 years	4 years
Proceeds from Lines of Credit									$ 0
Tyco International Holding S.a.r.L. (TSarL) [Member] | LIBOR plus One Point Five Percent Due in Two Thousand Twenty [Member]
Debt Instrument [Line Items]
Long-term Debt	4,000,000,000				0				4,000,000,000		0
Johnson Controls International plc [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt									1,500,000,000
Adient [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt									500,000,000
Amount of credit facility	$ 1,500,000,000								1,500,000,000
Length of Credit Facility	5 years
Proceeds from Lines of Credit									0
Adient [Member] | Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 900,000,000				0				900,000,000		0
Adient [Member] | LIBOR plus One Point Zero Zero Five Percent Due Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 1,500,000,000				$ 0				$ 1,500,000,000		$ 0
Length of Credit Facility	5 years
Interest rate on notes	1.005%				1.005%				1.005%		1.005%	1.005%	1.005%
Adient [Member] | Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 1,119,000,000				$ 0				$ 1,119,000,000		$ 0
Debt instrument, face amount | €												€ 1,000,000,000	€ 1,000,000,000
Interest rate on notes	3.50%				3.50%				3.50%		3.50%	3.50%	3.50%
Adient [Member] | 4.95% Due in 2064
Debt Instrument [Line Items]
Debt instrument, face amount	$ 900,000,000				$ 900,000,000				$ 900,000,000		$ 900,000,000
Interest rate on notes	4.875%				4.875%				4.875%		4.875%	4.875%	4.875%

Debt and Financing Arrangemen89

Debt and Financing Arrangements Net Financing Charges (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Debt Disclosure [Abstract]
Interest expense, net of capitalized interest costs	$ 293	$ 275	$ 238
Bank fees and bond cost amortization	30	21	15
Interest income	(12)	(7)	(8)
Net foreign exchange results for financing activities	(22)	(15)	(19)
Net financing charges	$ 289	$ 274	$ 226

Derivative Instruments and He90

Derivative Instruments and Hedging Activities Outstanding Commodity Hedge Contracts (Details)	Sep. 30, 2016Tlb	Sep. 30, 2015Tlb
Copper [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | lb	5,849,000	14,648,000
Lead [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	5,185	6,785
Aluminum [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	2,620	5,700
Tin [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	185	2,080

Derivative Instruments and He91

Derivative Instruments and Hedging Activities Location and Fair Values of Derivative Instruments and Hedging Activities (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	$ 95	$ 233
Gross amount, derivative liabilities	2,980	1,727
Equity swap
Derivative Instruments [Line Items]
Derivative, Amount of Hedged Item	0
Designated as Hedging Instrument
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	46	42
Gross amount, derivative liabilities	2,957	1,701
Designated as Hedging Instrument | Other current assets | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	41	31
Designated as Hedging Instrument | Other current assets | Commodity derivatives
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	4	0
Designated as Hedging Instrument | Other current assets | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	1
Designated as Hedging Instrument | Assets held for sale | Cross-currency interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	5
Designated as Hedging Instrument | Other noncurrent assets | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	1	5
Designated as Hedging Instrument | Other noncurrent assets | Equity swap
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	0
Designated as Hedging Instrument | Other current liabilities | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	48	37
Designated as Hedging Instrument | Other current liabilities | Commodity derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	7
Designated as Hedging Instrument | Liabilities held for sale | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Designated as Hedging Instrument | Liabilities held for sale | Cross-currency interest rate swaps
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	1
Designated as Hedging Instrument | Current portion of long-term debt | Fixed rate debt swapped to floating
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	551	801
Designated as Hedging Instrument | Long-term debt | Fixed rate debt swapped to floating
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	301	855
Designated as Hedging Instrument | Long-term debt | Foreign Currency Denominated Debt [Member]
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	938	0
Designated as Hedging Instrument | Other noncurrent Liabilities | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	1,119	0
Not Designated as Hedging Instrument
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	49	191
Gross amount, derivative liabilities	23	26
Not Designated as Hedging Instrument | Other current assets | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	49	27
Not Designated as Hedging Instrument | Other current assets | Commodity derivatives
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	0
Not Designated as Hedging Instrument | Other current assets | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	0
Not Designated as Hedging Instrument | Assets held for sale | Cross-currency interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	0
Not Designated as Hedging Instrument | Other noncurrent assets | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	0
Not Designated as Hedging Instrument | Other noncurrent assets | Equity swap
Derivative Instruments [Line Items]
Gross amount recognized, derivative assets	0	164
Not Designated as Hedging Instrument | Other current liabilities | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	18	26
Not Designated as Hedging Instrument | Other current liabilities | Commodity derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Not Designated as Hedging Instrument | Liabilities held for sale | Foreign currency exchange derivatives
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	5	0
Not Designated as Hedging Instrument | Liabilities held for sale | Cross-currency interest rate swaps
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Not Designated as Hedging Instrument | Current portion of long-term debt | Fixed rate debt swapped to floating
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Not Designated as Hedging Instrument | Long-term debt | Fixed rate debt swapped to floating
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Not Designated as Hedging Instrument | Long-term debt | Foreign Currency Denominated Debt [Member]
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	0	0
Not Designated as Hedging Instrument | Other noncurrent Liabilities | Interest rate swaps
Derivative Instruments [Line Items]
Gross amount, derivative liabilities	$ 0	$ 0

Derivative Instruments and He92

Derivative Instruments and Hedging Activities Location and Amount of Gains and Losses Gross of Tax on Derivative Instruments and Related Hedge Items (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ (11)	$ (24)	$ 18
Foreign currency exchange derivatives | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(20)	2	(2)
Foreign currency exchange derivatives | Discontinued Operations [Domain]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(30)	20	(9)
Foreign currency exchange derivatives | Net financing charges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	21	(37)	30
Foreign currency exchange derivatives | Income tax provision
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	4	0	0
Equity swap | Selling, general and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	14	(9)	(1)
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(15)	(24)	(6)
Amount of Gain (Loss) Reclassified from AOCI into Income	(32)	(9)	0
Cash Flow Hedging | Foreign currency exchange derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(18)	(5)	1
Cash Flow Hedging | Foreign currency exchange derivatives | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	9	25	7
Cash Flow Hedging | Foreign currency exchange derivatives | Discontinued Operations [Domain]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	(30)	(24)	(9)
Cash Flow Hedging | Commodity derivatives
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	3	(19)	(7)
Cash Flow Hedging | Commodity derivatives | Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	(12)	(11)	1
Cash Flow Hedging | Forward Treasury Locks | Net financing charges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Reclassified from AOCI into Income	1	1	1
Fair Value Hedging
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	0	0	0
Fair Value Hedging | Interest rate swaps | Net financing charges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	(5)	7	5
Fair Value Hedging | Fixed rate debt swapped to floating | Net financing charges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income on Derivative	$ 5	$ (7)	$ (5)

Derivative Instruments and He93

Derivative Instruments and Hedging Activities Derivative Assets and Liabilties, Offsetting (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross amount recognized, derivative assets	$ 95	$ 233
Gross amount eligible for offsetting, derivative assets	(21)	(8)
Net amount, derivative assets	74	225
Gross amount, derivative liabilities	2,980	1,727
Gross amount eligible for offsetting, derivative liabilities	(21)	(8)
Net Amount, derivative liabilities	$ 2,959	$ 1,719

Derivative Instruments and He94

Derivative Instruments and Hedging Activities Derivatives, Additional Information (Details) € in Millions, ¥ in Billions	3 Months Ended	12 Months Ended
	Sep. 30, 2005USD ($)Agreement	Sep. 30, 2016USD ($)Swap	Sep. 30, 2015USD ($)Swap	Sep. 30, 2014USD ($)	Sep. 30, 2016EUR (€)Swap	Sep. 30, 2016JPY (¥)Swap	Jun. 30, 2015JPY (¥)	Jun. 30, 2014USD ($)Swap	Sep. 30, 2013USD ($)Swap	Mar. 31, 2006Agreement
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		$ 2,980,000,000	$ 1,727,000,000
Increase (Decrease) in Cash Collateral for Loaned Securities		$ 0	$ 0
Hedge percentage for foreign exchange transactional exposures, Minimum		70.00%
Hedge percentage for foreign exchange transactional exposures, Maximum		90.00%
Number of fixed to floating interest rate swaps outstanding | Swap		8	12		8	8
Number of forward treasury lock agreements | Agreement	3
Notional amount of forward treasury lock agreements, total	$ 1,300,000,000
Number of forward treasury lock agreements terminated | Agreement										3
Gains (Losses) recognized in income for the ineffective portion of cash flow hedges		$ 0	$ 0	$ 0
Types of Notes Forward Treasury Lock Agreements Fixed Portion of Future Interest Cost	5-year, 10-year and 30-year bonds
Gains (Losses) Reclassifed from CTA to Income for Outstanding Net Investment Hedges		0	0	0
Ordinary Shares
Derivative [Line Items]
Derivative, Amount of Hedged Item		0	4,000,000
5.5 % Due in 2016
Derivative [Line Items]
Long-term Debt		$ 0	$ 800,000,000
Interest rate on notes		5.50%	5.50%		5.50%	5.50%
2.6 % Due in 2017
Derivative [Line Items]
Long-term Debt		$ 404,000,000	$ 404,000,000
Interest rate on notes		2.60%	2.60%		2.60%	2.60%
1.4% Due in 2018
Derivative [Line Items]
Long-term Debt		$ 301,000,000	$ 303,000,000
Interest rate on notes		1.40%	1.40%		1.40%	1.40%
7.125 % Due in 2017
Derivative [Line Items]
Long-term Debt		$ 149,000,000	$ 153,000,000
Interest rate on notes		7.125%	7.125%		7.125%	7.125%
Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		$ 2,957,000,000	$ 1,701,000,000
Not Designated as Hedging Instrument
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability		$ 23,000,000	26,000,000
Interest rate swaps | 5.5 % Due in 2016
Derivative [Line Items]
Derivative, Amount of Hedged Item									$ 800,000,000
Number of fixed to floating interest rate swaps outstanding | Swap									4
Interest rate on notes									5.50%
Interest rate swaps | 2.6 % Due in 2017
Derivative [Line Items]
Derivative, Amount of Hedged Item								$ 400,000,000
Number of fixed to floating interest rate swaps outstanding | Swap								4
Interest rate on notes								2.60%
Interest rate swaps | 1.4% Due in 2018
Derivative [Line Items]
Derivative, Amount of Hedged Item								$ 300,000,000
Number of fixed to floating interest rate swaps outstanding | Swap								3
Interest rate on notes								1.40%
Interest rate swaps | 7.125 % Due in 2017
Derivative [Line Items]
Derivative, Amount of Hedged Item								$ 150,000,000
Number of fixed to floating interest rate swaps outstanding | Swap								1
Interest rate on notes								7.125%
Cross-currency interest rate swaps
Derivative [Line Items]
Cross-currency interest rate swaps outstanding			$ 20,000,000,000
Number of fixed to floating interest rate swaps outstanding | Swap		0	4		0	0
Foreign Currency Denominated Debt [Member]
Derivative [Line Items]
Cross-currency interest rate swaps outstanding					€ 0	¥ 37
37 billion yen floating rate syndicated term loan maturing in June 2020
Derivative [Line Items]
Long-term Debt | ¥							¥ 37
One billion euro net investment hedge [Member] | Foreign Currency Denominated Debt [Member]
Derivative [Line Items]
Cross-currency interest rate swaps outstanding | €					1,000
500 million euro net investment hedge [Member] [Member] | Foreign Currency Denominated Debt [Member]
Derivative [Line Items]
Cross-currency interest rate swaps outstanding | €					€ 500
Net Investment Hedging [Member]
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net		$ (82,000,000)	$ 16,000,000	$ 24,000,000

Fair Value Measurements Assets

Fair Value Measurements Assets and Liabilities Measured at Fair Value (Details) - USD ($)		Sep. 30, 2016	Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		$ 95,000,000	$ 233,000,000
Gross amount, derivative liabilities		2,980,000,000	1,727,000,000
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		443,000,000	237,000,000
Total liabilities		2,980,000,000	1,727,000,000
Foreign currency exchange derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		90,000,000	58,000,000
Foreign currency exchange derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		66,000,000	63,000,000
Foreign currency exchange derivatives | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		5,000,000
Commodity derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		4,000,000
Commodity derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			7,000,000
Interest rate swaps | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			1,000,000
Interest rate swaps | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		1,000,000
Investments in marketable common stock			5,000,000
Cross-currency interest rate swaps | Assets held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			5,000,000
Cross-currency interest rate swaps | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			1,000,000
Equity swap | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			164,000,000
Fixed rate debt swapped to floating | Current portion of long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		551,000,000	801,000,000
Fixed rate debt swapped to floating | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		301,000,000	855,000,000
Foreign Currency Denominated Debt [Member] | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		938,000,000
Foreign Currency Denominated Debt [Member] | Noncurrent liabilities held for sale [Domain] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		1,119,000,000
Quoted Prices in Active Markets (Level 1) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		348,000,000	168,000,000
Total liabilities		2,057,000,000	0
Quoted Prices in Active Markets (Level 1) | Foreign currency exchange derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0	0
Quoted Prices in Active Markets (Level 1) | Foreign currency exchange derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0	0
Quoted Prices in Active Markets (Level 1) | Foreign currency exchange derivatives | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Quoted Prices in Active Markets (Level 1) | Commodity derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0
Quoted Prices in Active Markets (Level 1) | Commodity derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			0
Quoted Prices in Active Markets (Level 1) | Interest rate swaps | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Quoted Prices in Active Markets (Level 1) | Interest rate swaps | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0
Investments in marketable common stock			0
Quoted Prices in Active Markets (Level 1) | Cross-currency interest rate swaps | Assets held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Quoted Prices in Active Markets (Level 1) | Cross-currency interest rate swaps | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			0
Quoted Prices in Active Markets (Level 1) | Equity swap | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			164,000,000
Quoted Prices in Active Markets (Level 1) | Fixed rate debt swapped to floating | Current portion of long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0	0
Quoted Prices in Active Markets (Level 1) | Fixed rate debt swapped to floating | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0	0
Quoted Prices in Active Markets (Level 1) | Foreign Currency Denominated Debt [Member] | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		938,000,000
Quoted Prices in Active Markets (Level 1) | Foreign Currency Denominated Debt [Member] | Noncurrent liabilities held for sale [Domain] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		1,119,000,000
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		95,000,000	69,000,000
Total liabilities		923,000,000	1,727,000,000
Significant Other Observable Inputs (Level 2) | Foreign currency exchange derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		90,000,000	58,000,000
Significant Other Observable Inputs (Level 2) | Foreign currency exchange derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		66,000,000	63,000,000
Significant Other Observable Inputs (Level 2) | Foreign currency exchange derivatives | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		5,000,000
Significant Other Observable Inputs (Level 2) | Commodity derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		4,000,000
Significant Other Observable Inputs (Level 2) | Commodity derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			7,000,000
Significant Other Observable Inputs (Level 2) | Interest rate swaps | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			1,000,000
Significant Other Observable Inputs (Level 2) | Interest rate swaps | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		1,000,000
Investments in marketable common stock			5,000,000
Significant Other Observable Inputs (Level 2) | Cross-currency interest rate swaps | Assets held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			5,000,000
Significant Other Observable Inputs (Level 2) | Cross-currency interest rate swaps | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			1,000,000
Significant Other Observable Inputs (Level 2) | Equity swap | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Significant Other Observable Inputs (Level 2) | Fixed rate debt swapped to floating | Current portion of long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		551,000,000	801,000,000
Significant Other Observable Inputs (Level 2) | Fixed rate debt swapped to floating | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		301,000,000	855,000,000
Significant Other Observable Inputs (Level 2) | Foreign Currency Denominated Debt [Member] | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Significant Other Observable Inputs (Level 2) | Foreign Currency Denominated Debt [Member] | Noncurrent liabilities held for sale [Domain] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total assets		0	0
Total liabilities		0	0
Significant Unobservable Inputs (Level 3) | Foreign currency exchange derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0	0
Significant Unobservable Inputs (Level 3) | Foreign currency exchange derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0	0
Significant Unobservable Inputs (Level 3) | Foreign currency exchange derivatives | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Significant Unobservable Inputs (Level 3) | Commodity derivatives | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0
Significant Unobservable Inputs (Level 3) | Commodity derivatives | Other current liabilities | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			0
Significant Unobservable Inputs (Level 3) | Interest rate swaps | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Significant Unobservable Inputs (Level 3) | Interest rate swaps | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets		0
Investments in marketable common stock			0
Significant Unobservable Inputs (Level 3) | Cross-currency interest rate swaps | Assets held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Significant Unobservable Inputs (Level 3) | Cross-currency interest rate swaps | Liabilities held for sale | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities			0
Significant Unobservable Inputs (Level 3) | Equity swap | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets			0
Significant Unobservable Inputs (Level 3) | Fixed rate debt swapped to floating | Current portion of long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0	0
Significant Unobservable Inputs (Level 3) | Fixed rate debt swapped to floating | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Significant Unobservable Inputs (Level 3) | Foreign Currency Denominated Debt [Member] | Long-term debt | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Significant Unobservable Inputs (Level 3) | Foreign Currency Denominated Debt [Member] | Noncurrent liabilities held for sale [Domain] | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount, derivative liabilities		0
Exchange traded funds in equity securities [Member] | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	86,000,000
Exchange traded funds in equity securities [Member] | Significant Other Observable Inputs (Level 2) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	0
Exchange traded funds in equity securities [Member] | Significant Unobservable Inputs (Level 3) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	0
Available-for-sale Securities [Member] | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		3,000,000	4,000,000
Available-for-sale Securities [Member] | Quoted Prices in Active Markets (Level 1) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		3,000,000	4,000,000
Available-for-sale Securities [Member] | Significant Other Observable Inputs (Level 2) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		0	0
Available-for-sale Securities [Member] | Significant Unobservable Inputs (Level 3) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		0	$ 0
Deferred compensation plan assets [Member] | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		81,000,000
Deferred compensation plan assets [Member] | Significant Other Observable Inputs (Level 2) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		0
Deferred compensation plan assets [Member] | Significant Unobservable Inputs (Level 3) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock		0
Exchange Traded Funds | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets	[1]	15,000,000
Exchange Traded Funds | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	163,000,000
Exchange Traded Funds | Quoted Prices in Active Markets (Level 1) | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets	[1]	15,000,000
Exchange Traded Funds | Significant Other Observable Inputs (Level 2) | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets	[1]	0
Exchange Traded Funds | Significant Other Observable Inputs (Level 2) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	0
Exchange Traded Funds | Significant Unobservable Inputs (Level 3) | Other current assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gross amount recognized, derivative assets	[1]	0
Exchange Traded Funds | Significant Unobservable Inputs (Level 3) | Other noncurrent assets | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in marketable common stock	[1]	$ 0
[1]	1Classified as restricted investments for payment of asbestos liabilities. See Note 23, "Commitments and Contingencies" of the notes to consolidated financial statements for further details.

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Disclosure, Additional Information (Details) € in Millions, ¥ in Billions	12 Months Ended
	Sep. 30, 2016USD ($)Swap	Sep. 30, 2015USD ($)Swap	Sep. 30, 2016EUR (€)Swap	Sep. 30, 2016JPY (¥)Swap	Jun. 30, 2014USD ($)Swap	Sep. 30, 2013USD ($)Swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net Realized and Unrealized Gain (Loss) on Trading Securities	$ 1,000,000	$ 0
Number of fixed to floating interest rate swaps outstanding | Swap	8	12	8	8
Debt Instrument, Fair Value Disclosure	$ 15,700,000,000	$ 6,700,000,000
5.5 % Due in 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%	5.50%	5.50%	5.50%
2.6 % Due in 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.60%	2.60%	2.60%	2.60%
1.4% Due in 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.40%	1.40%	1.40%	1.40%
7.125 % Due in 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.125%	7.125%	7.125%	7.125%
Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Notional Amount			€ 0	¥ 37
Interest rate swaps | 5.5 % Due in 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Amount of Hedged Item						$ 800,000,000
Debt Instrument, Interest Rate, Stated Percentage						5.50%
Number of fixed to floating interest rate swaps outstanding | Swap						4
Interest rate swaps | 2.6 % Due in 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Amount of Hedged Item					$ 400,000,000
Debt Instrument, Interest Rate, Stated Percentage					2.60%
Number of fixed to floating interest rate swaps outstanding | Swap					4
Interest rate swaps | 1.4% Due in 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Amount of Hedged Item					$ 300,000,000
Debt Instrument, Interest Rate, Stated Percentage					1.40%
Number of fixed to floating interest rate swaps outstanding | Swap					3
Interest rate swaps | 7.125 % Due in 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Amount of Hedged Item					$ 150,000,000
Debt Instrument, Interest Rate, Stated Percentage					7.125%
Number of fixed to floating interest rate swaps outstanding | Swap					1
Cross-currency interest rate swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of fixed to floating interest rate swaps outstanding | Swap	0	4	0	0
Derivative, Notional Amount		$ 20,000,000,000
Unrealized Gains [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax		$ 0
One billion euro net investment hedge [Member] | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Notional Amount | €			€ 1,000
500 million euro net investment hedge [Member] [Member] | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, Notional Amount | €			€ 500

Stock-based Compensation (Detai

Stock-based Compensation (Details) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)Plan$ / sharesshares	Sep. 30, 2015USD ($)$ / shares	Sep. 30, 2014USD ($)$ / shares	Jan. 23, 2013shares
Stock Based Compensation Activity [Line Items]
Shares authorized for issuance under 2012 Plan (in shares) | shares				76
Shares available for issuance under the 2012 Plan (in shares) | shares	46
Number of share-based compensation plans | Plan	4
Compensation cost charged against income from share-based compensation plans	$ 121	$ 69	$ 67
Total income tax benefit recognized for share-based compensation arrangements	$ 56	$ 28	$ 26
Business Combination, Share Consolidation Ratio	0.955
Business Combination, Consideration Transferred, Fair Value of Acquiree Equity Awards	$ 224
Fair Value of Acquiree Equity Awards not Earned as of Merger Date	$ 101
Employee Stock Option
Stock Based Compensation Activity [Line Items]
Expiration period for stock options	10 years
Weighted-average grant-date fair value of options granted | $ / shares	$ 13.14	$ 15.51	$ 14.70
Total intrinsic value of options exercised	$ 39	$ 227	$ 135
Cash received from exercise of stock options granted	70	275	186
Tax benefit from the exercise of stock options, which is recorded in capital in excess of par	11	59	34
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 25
Weighted average period over which unrecognized compensation cost is expected to be recognized	1 year 73 days
Stock Appreciation Rights (SARs)
Stock Based Compensation Activity [Line Items]
Payments towards exercise of SARs granted	$ 8	$ 19	$ 21
Restricted (Nonvested) Stock
Stock Based Compensation Activity [Line Items]
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted	$ 163
Weighted average period over which unrecognized compensation cost is expected to be recognized	2 years
Minimum | Employee Stock Option
Stock Based Compensation Activity [Line Items]
Vesting period	2 years
Maximum | Employee Stock Option
Stock Based Compensation Activity [Line Items]
Vesting period	3 years
Maximum | Restricted (Nonvested) Stock
Stock Based Compensation Activity [Line Items]
Vesting period	3 years
Selling, general and administrative
Stock Based Compensation Activity [Line Items]
Compensation cost charged against income from share-based compensation plans	$ 160
Fair Value of Acquiree Equity Awards not Earned as of Merger Date Expensed During Period	10
Restructuring Charges [Member]
Stock Based Compensation Activity [Line Items]
Compensation cost charged against income from share-based compensation plans	39
Fair Value of Acquiree Equity Awards not Earned as of Merger Date Expensed During Period	$ 23

Stock-based Compensation Assump

Stock-based Compensation Assumptions Used in Black-Scholes Option Valuation Model (Details) - Employee Stock Option	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Stock Based Compensation Activity [Line Items]
Expected life of option (years)	6 years 146 days	6 years 7 months	6 years 8 months
Risk-free interest rate, minimum	1.64%	1.61%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum	1.70%	1.93%
Risk-free interest rate			1.92%
Expected volatility of the Company's stock	36.00%	36.00%	36.00%
Expected dividend yield on the Company's stock	2.11%	2.02%	2.17%

Stock-based Compensation Summar

Stock-based Compensation Summary of Stock Option Activity (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Share-based Compensation Arrangements by Share-based Payment Award, Options, Other Share Increase (Decrease) in Period, Weighted Average Exercise Price | $ / shares	$ 31.37
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period | shares	10,895,381
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average Option Price, Outstanding beginning balance | $ / shares	$ 31.17
Weighted Average Option Price, Granted | $ / shares	43.83
Weighted Average Option Price, Exercised | $ / shares	27.93
Weighted Average Option Price, Forfeited or expired | $ / shares	42.90
Weighted Average Option Price, Outstanding ending balance | $ / shares	32.07
Weighted Average Option Price, Exercisable | $ / shares	$ 28.30
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares Subject to Option, Outstanding beginning balance | shares	13,039,240
Shares Subject to Option, Granted | shares	961,705
Shares Subject to Option, Exercised | shares	(2,393,703)
Shares Subject to Option, Forfeited or expired | shares	(170,390)
Shares Subject to Option, Outstanding ending balance | shares	22,332,233
Shares Subject to Option, Exercisable | shares	15,745,714
Weighted Average Remaining Contractual Life (years), Outstanding	5 years 4 months
Weighted Average Remaining Contractual Life (years), Exercisable	4 years 146 days
Aggregate Intrinsic Value, Outstanding | $	$ 327
Aggregate Intrinsic Value, Exercisable | $	$ 288

Stock-based Compensation Ass100

Stock-based Compensation Assumptions Used in Black-Scholes Stock Appreciation Rights Valuation Model (Details)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Employee Stock Option
Stock Based Compensation Activity [Line Items]
Expected life of SAR (years)	6 years 146 days	6 years 7 months	6 years 8 months
Risk-free interest rate			1.92%
Risk-free interest rate, maximum	1.70%	1.93%
Expected volatility of the Company's stock	36.00%	36.00%	36.00%
Expected dividend yield on the Company's stock	2.11%	2.02%	2.17%
Stock Appreciation Rights (SARs)
Stock Based Compensation Activity [Line Items]
Risk-free interest rate, maximum	1.04%
Expected volatility of the Company's stock	36.00%
Expected dividend yield on the Company's stock	2.11%
Stock Appreciation Rights (SARs) | Minimum
Stock Based Compensation Activity [Line Items]
Expected life of SAR (years)	6 months
Stock Appreciation Rights (SARs) | Maximum
Stock Based Compensation Activity [Line Items]
Expected life of SAR (years)	4 years 72 days

Stock-based Compensation Sum101

Stock-based Compensation Summary of Stock Appreciation Rights Activity (Details) - Stock Appreciation Rights (SARs) $ / shares in Units, $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)$ / sharesshares
Stock Based Compensation Activity [Line Items]
Risk-free interest rate, minimum	0.45%
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted Average SAR Price, Outstanding beginning balance | $ / shares	$ 29.53
Weighted Average SAR Price, Granted | $ / shares	43.86
Weighted Average SAR Price, Exercised | $ / shares	27.41
Weighted Average SAR Price, Forfeited or expired | $ / shares	36.33
Weighted Average SAR Price, Outstanding ending balance | $ / shares	30.49
Weighted Average SAR Price, Exercisable | $ / shares	$ 29.23
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding Roll Forward]
Shares Subject to SAR, Outstanding beginning balance | shares	1,740,100
Shares Subject to SAR, Granted | shares	54,749
Shares Subject to SAR, Exercised | shares	(494,480)
Shares Subject to SAR, Forfeited or expired | shares	(99,204)
Shares Subject to SAR, Outstanding ending balance | shares	1,201,165
Shares Subject to SAR, Exercisable | shares	1,114,543
Weighted Average Remaining Contractual Life (years), Outstanding	4 years 219 days
Weighted Average Remaining Contractual Life (years), Exercisable	4 years 110 days
Aggregate Intrinsic Value SAR, Outstanding | $	$ 19
Aggregate Intrinsic Value SAR, Exercisable | $	$ 19

Summary of Nonvested Restricted

Summary of Nonvested Restricted Stock Awards (Details)	12 Months Ended
	Sep. 30, 2016$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Price, Forfeited	$ 47.74
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Period Increase (Decrease) | shares	2,916,471
Restricted (Nonvested) Stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Price, Nonvested, Outstanding beginning balance	$ 45.75
Weighted Average Price, Granted	45.49
Weighted Average Price, Vested	34.45
Weighted Average Price, Forfeited	45.83
Weighted Average Price, Nonvested	45.75
Weighted Average Price, Nonvested, Outstanding ending balance	$ 47.27
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares/Units Subject to Restriction, Nonvested, Outstanding beginning balance | shares	2,370,155
Shares/Units Subject to Restriction, Granted | shares	4,052,020
Shares/Units Subject to Restriction, Vested | shares	(527,017)
Shares/Units Subject to Restriction, Forfeited | shares	(353,621)
Shares/Units Subject to Restriction, Outstanding ending balance | shares	9,566,044
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Converted from Performance Shares in Period, Weighted Average Grant Date Fair Value	$ 49.20
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Converted from Performance Shares in Period | shares	1,108,036

Stock-based Compensation Sum103

Stock-based Compensation Summary of Nonvested Performance Share Awards (Details) - $ / shares	12 Months Ended
	Sep. 30, 2016	Sep. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Price, Forfeited	$ 47.74
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Converted from Performance Shares in Period, Weighted Average Grant Date Fair Value	$ 49.20
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Converted from Performance Shares in Period	(558,765)
Weighted Average Price, Vested	$ 30.73
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(344,318)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Price, Nonvested, Outstanding beginning balance	$ 42.33
Weighted Average Price, Forfeited	49.73
Weighted Average Price, Nonvested	42.33	$ 49.20
Weighted Average Price, Nonvested, Outstanding ending balance	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Shares/Units Subject to Restriction, Nonvested, Outstanding beginning balance	924,388
Shares/Units Subject to Restriction, Forfeited	(21,305)
Shares/Units Subject to Restriction, Nonvested	924,388	558,765
Shares/Units Subject to Restriction, Outstanding ending balance	0

Earnings Per Share (Details)

Earnings Per Share (Details)	3 Months Ended		12 Months Ended
	Sep. 30, 2016$ / shares	Sep. 30, 2015$ / shares	Sep. 30, 2016Quarter$ / shares	Sep. 30, 2015Quarter$ / shares	Sep. 30, 2014$ / shares
Earnings Per Share [Abstract]
Dividend declared | $ / shares	$ 0.29	$ 0.26	$ 1.16	$ 1.04	$ 0.88
Number of quarterly dividends declared | Quarter			4	4

Reconciliation of the numerator

Reconciliation of the numerators and denominators (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Cash dividends common, per share	$ 0.29	$ 0.26	$ 1.16	$ 1.04	$ 0.88
Income (Loss) Available to Ordinary Shareholders
Income from continuing operations			$ 732	$ 814	$ 906
Income (loss) from discontinued operations			1,600	(749)	(309)
Net Income (Loss) Attributable to Parent			$ (868)	$ 1,563	$ 1,215
Weighted Average Shares Outstanding
Basic weighted average shares outstanding			667.4	655.2	666.9
Effect of diluted securities: Stock Options, unvested restricted stock and unvested performance share awards			5.2	6.3	7.9
Effect of dilutive securities:
Diluted weighted average shares outstanding			672.6	661.5	674.8
Antidilutive Securities
Options to purchase common shares			0	0.4	0.1

Equity and Noncontrolling In106

Equity and Noncontrolling Interests Equity Attributable to Johnson Controls, Inc. and Noncontrolling Interests (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Equity [Line Items]
Payments for Repurchase of Common Stock	$ 501	$ 1,362	$ 1,249
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	10,335	11,270	12,273
Beginning balance	163
Beginning balance	10,498
Net income attributable to Johnson Controls, Inc.	(868)	1,563	1,215
Foreign currency translation adjustments	(94)	(825)	(642)
Realized and unrealized losses on marketable securities	(1)	0	(7)
Pension and postretirement plans	(1)	(10)	(5)
Other comprehensive loss	(87)	(845)	(657)
Comprehensive income (loss) attributable to Johnson Controls	(964)	743	560
Comprehensive income attributable to noncontrolling interest	225	91	126
Total Comprehensive income (loss)	(739)	834	686
Stockholders Equity, Change due to Merger	15,808
Cash dividends - common stock	(752)	(681)	(586)
Repurchases of common stock	(501)	(1,362)	(1,249)
Other, including options exercised	(192)	(365)	(272)
Ending balance	24,118	10,335	11,270
Ending balance	972	163
Ending balance	25,090	10,498
Parent
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	10,335	11,270	12,273
Net income attributable to Johnson Controls, Inc.	(868)	1,563	1,215
Foreign currency translation adjustments	(105)	(799)	(640)
Realized and unrealized gains (losses) on derivatives	11	(11)	(3)
Realized and unrealized gains (losses) on marketable common stock	(1)		(7)
Pension and postretirement plans	(1)	(10)	(5)
Other comprehensive loss	(96)	(820)	(655)
Comprehensive income (loss) attributable to Johnson Controls	(964)	743	560
Stockholders Equity, Change due to Merger	15,808
Cash dividends - common stock	(752)	(681)	(586)
Dividends attributable to noncontrolling interests	0	0	0
Repurchases of common stock	(501)	(1,362)	(1,249)
Change in noncontrolling interest share	0	0	0
Other, including options exercised	(192)	(365)	(272)
Ending balance	24,118	10,335	11,270
Nonredeemable Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	163	251	260
Income from continuing operations attributable to noncontrolling interests	168	65	90
Foreign currency translation adjustments	9	(3)	(2)
Realized and unrealized gains (losses) on derivatives	(1)	0	0
Realized and unrealized gains (losses) on marketable common stock	0		0
Pension and postretirement plans	0	0	0
Other comprehensive loss	8	(3)	(2)
Comprehensive income attributable to noncontrolling interest	176	62	88
Stockholders Equity, Change due to Merger	0
Cash dividends - common stock	0	0	0
Dividends attributable to noncontrolling interests	(93)	(57)	(59)
Repurchases of common stock	0	0	0
Change in noncontrolling interest share	726	(93)	(32)
Other, including options exercised	0	0	6
Ending balance	972	163	251
Stockholders' Equity, Total
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	10,498	11,521	12,533
Net Income	(700)	1,628	1,305
Foreign currency translation adjustments	(96)	(802)	(642)
Realized and unrealized gains (losses) on derivatives	10	(11)	(3)
Realized and unrealized losses on marketable securities	(1)		(7)
Pension and postretirement plans	(1)	(10)	(5)
Other comprehensive loss	(88)	(823)	(657)
Total Comprehensive income (loss)	(788)	805	648
Stockholders Equity, Change due to Merger	15,808
Cash dividends - common stock	(752)	(681)	(586)
Dividends attributable to noncontrolling interests	(93)	(57)	(59)
Repurchases of common stock	(501)	(1,362)	(1,249)
Change in noncontrolling interest share	726	(93)	(32)
Other, including options exercised	(192)	(365)	(266)
Ending balance	$ 25,090	$ 10,498	$ 11,521

Equity and Noncontrolling In107

Equity and Noncontrolling Interests Equity Attributable to Johnson Controls, Inc. and Noncontrolling Interests (Additional Information) (Details) $ / shares in Units, $ in Millions	3 Months Ended		12 Months Ended
	Sep. 30, 2016USD ($)$ / shares	Sep. 30, 2015USD ($)$ / shares	Sep. 30, 2016USD ($)$ / sharesshares	Sep. 30, 2015USD ($)$ / shares	Sep. 30, 2014USD ($)$ / shares	Sep. 02, 2016USD ($)shares	Dec. 31, 2015USD ($)
Equity, Class of Treasury Stock [Line Items]
Stockholders Equity, Change due to Merger			$ 15,808
Business Combination, Consideration Transferred			$ 19,671
Business Combination, Number of Acquiree Shares Outstanding Prior to Acquisition | shares			427,181,743
Common Stock, Value, Issued	$ 9	$ 7	$ 9	$ 7		$ 0
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value							$ 691
Cash dividends common, per share | $ / shares	$ 0.29	$ 0.26	$ 1.16	$ 1.04	$ 0.88
Business Combination, Share Consolidation Ratio			0.955
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares			407,958,565
Business Combination, Number of Acquiror Shares Outstanding Prior to Acquisition | shares			638,300,000
Business Combination, Cash Consideration paid to JCI Inc. shareholders			$ 3,864
Business Combination, Consideration Transferred per Share | $ / shares			$ 34.88
Business Combination, Reduction in Number of Acquiror Shares due to Cash Consideration Paid by Acquiree | shares			(110,800,000)
Business Combination, Adjusted Number of Acquiror Shares Outstanding Prior to Acquisition | shares			527,500,000
Common Stock, Shares, Outstanding | shares						935,500,000
Treasury Stock, Value, Acquired, Cost Method			$ 501	$ 1,362	$ 1,249
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, NonControlling Interest	$ 34		34
Post Merger Stock Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	1,000		1,000
PreMerger Share Repurchase Program [Member]
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	$ 3,650		$ 3,650

Equity and Noncontrolling In108

Equity and Noncontrolling Interests Changes in Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Beginning balance	$ 212
Stockholders' Equity, Other	192	$ 365	$ 272
Ending balance	234	212
Redeemable Noncontrolling Interests
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Beginning balance	212	194	157
Net income	48	51	38
Foreign currency translation adjustments	2	(23)	0
Realized and unrealized gains (losses) on derivatives	(1)	1	0
Dividends	27	11	7
Stockholders' Equity, Other	0	0	6
Ending balance	234	212	194
Parent
Increase (Decrease) in Redeemable Noncontrolling Interests [Roll Forward]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent	11	(11)	(3)
Change in noncontrolling interest share	0	0	0
Stockholders' Equity, Other	$ 192	$ 365	$ 272

Equity and Noncontrolling In109

Equity and Noncontrolling Interests Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Accumulated other comprehensive loss, end of period		$ (1,153)	$ (1,057)	$ (237)
Realized and unrealized gains (losses) on derivatives
Current period changes in fair value		9	(10)	(3)
Pension and postretirement plans
Proceeds from Sale and Maturity of Marketable Securities				25
Marketable Securities, Realized Gain (Loss)		8
Foreign Currency Translation
Foreign currency translation adjustments
Balance at beginning of period		(1,047)	(248)	392
Aggregate adjustment for the period	[1]	(105)	(799)	(640)
Balance at end of period		(1,152)	(1,047)	(248)
Aggregate adjustment for the period, tax		(3)	(44)	7
Realized And Unrealized Gains Losses On Derivatives
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period		(7)	4	7
Current period changes in fair value		(10)	(17)	(3)
Reclassification to income	[2]	(21)	(6)	0
Balance at end of period		4	(7)	4
Current period changes in fair value, tax		(5)	(7)	(3)
Reclassification to income, tax		11	3	0
Unrealized Gain Loss On Marketable Common Stock
Realize and unrealized gains (losses) on marketable common stock
Balance at beginning of period		0	0	7
Current period changes in fair value		(1)	0	(1)
Reclassifications to income	[3]	0	0	(6)
Balance at end of period		(1)	0	0
Current period changes in fair value, tax		0	0	0
Reclassification to income, tax		0	0	(2)
Pension And Other Postretirement Benefit Plans Assets
Pension and postretirement plans
Balance at beginning of period		3	(7)	(12)
Reclassification to income	[4]	(1)	(11)	(4)
Other changes		0	1	(1)
Balance at end of period		4	3	(7)
Reclassification to income, tax		0	(3)	(3)
Other changes, tax		$ 0	0	0
Global Workplace Solutions | Foreign Currency Translation
Foreign currency translation adjustments
Aggregate adjustment for the period			$ (19)
Automotive Experience Electronics | Foreign Currency Translation
Foreign currency translation adjustments
Aggregate adjustment for the period				$ 203
[1]	* During fiscal 2015, ($19) million of cumulative CTA were recognized as part of the divestiture-related gain recognized within discontinued operations as a result of the divestiture of GWS. During fiscal 2014, $203 million of cumulative CTA were recognized as part of the divestiture-related losses recognized within discontinued operations as a result of the divestiture of the Automotive Experience Electronics business.
[2]	Refer to Note 10, "Derivative Instruments and Hedging Activities," of the notes to consolidated financial statements for disclosure of the line items on the consolidated statements of income affected by reclassifications from AOCI into income related to derivatives.
[3]	{F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjQ4NzkxMGIwZjI5MTQ5MjA4YzkyNzgxMDk4YTI1NTg2fFRleHRTZWxlY3Rpb246NkVBNzBERjZDRkFDQzhBMDgzNkUyNzE0MjdFMjFEMzcM}
[4]	Refer to Note 15, "Retirement Plans," of the notes to consolidated financial statements for disclosure of the components of the Company's net periodic benefit costs associated with its defined benefit pension and postretirement plans. For the year ended September 30, 2016, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses on the consolidated statements of income. For the year ended September 30, 2015 the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in selling, general and administrative expenses and income (loss) from discontinued operations, net of tax on the consolidated statements of income. For the year ended September 30, 2014, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in cost of sales and income (loss) from discontinued operations, net of tax on the consolidated statements of income.

Retirement Plans (Details)

Retirement Plans (Details) $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)Person	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Retirement Plans [Line Items]
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets, aggregate projected benefit obligation	$ 7,124	$ 3,636
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets, aggregate accumulated benefit obligation	6,966	3,581
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets, aggregate fair value of plan assets	5,234	2,939
Total employer and employee contributions to defined benefit plans	136
Voluntary contributions made by the company to defined benefit plans	34
Estimated future employer contributions to defined benefit plans in next fiscal year	$ 326
Modification in salaried plans to limit company's cost of future annual retiree medical benefits	150.00%
Projected prescription drug subsidy receipts per year over the next ten years	$ 2
Matching contributions charged to expense for defined contribution savings plans	$ 128	123	$ 132
Number of multiemployer benefit plans in which the Company participates | Person	284
Employer contributions to multiemployer pension plans	$ 46	45	44
Postretirement Benefits
Retirement Plans [Line Items]
Defined Benefit Plan, Benefit Obligation	242	$ 211	$ 224
Total employer and employee contributions to defined benefit plans	7
Estimated future employer contributions to defined benefit plans in next fiscal year	4
Change in Assumptions for Pension Plans [Member]
Retirement Plans [Line Items]
Estimated future employer contributions to defined benefit plans in next fiscal year	$ 247

Retirement Plans Projected Bene

Retirement Plans Projected Benefit Payments from Plans (Details) $ in Millions	12 Months Ended
	Sep. 30, 2016USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated future employer contributions to defined benefit plans in next fiscal year	$ 326
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2,017	569
2,018	321
2,019	332
2,020	337
2,021	344
2022-2026	1,879
Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Estimated future employer contributions to defined benefit plans in next fiscal year	4
2,017	21
2,018	21
2,019	21
2,020	21
2,021	20
2022-2026	$ 86

Plan Assets by Asset Category (

Plan Assets by Asset Category (Details) - USD ($) $ in Millions		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets		$ 2,947	$ 2,283	$ 2,504
Total Plan Assets		3,293	2,606
U.S. Pension Plans | Cash
Retirement Plans [Line Items]
Fair value of plan assets		38	75
U.S. Pension Plans | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		692	500
U.S. Pension Plans | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		267	235
U.S. Pension Plans | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		655	472
U.S. Pension Plans | Government
Retirement Plans [Line Items]
Fair value of plan assets		345	248
U.S. Pension Plans | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		950	753
U.S. Pension Plans | Real Estate
Retirement Plans [Line Items]
Real Estate Investments Measured at Net Asset Value	[1]	346	323
Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets		2,484	1,126	1,201
Real Estate Investments Measured at Net Asset Value	[1]		51
Total Plan Assets		2,536	1,177
Non-U.S. Pension | Cash
Retirement Plans [Line Items]
Fair value of plan assets		90	98
Non-U.S. Pension | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		317	68
Non-U.S. Pension | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		453	104
Non-U.S. Pension | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		19	16
Non-U.S. Pension | Government
Retirement Plans [Line Items]
Fair value of plan assets		864	441
Non-U.S. Pension | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		561	220
Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets		169	172
Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets			7
Real Estate Investments Measured at Net Asset Value	[1]	52
Postretirement Benefits
Retirement Plans [Line Items]
Fair value of plan assets		196	194	219
Total Plan Assets		196	194
Postretirement Benefits | Cash
Retirement Plans [Line Items]
Fair value of plan assets		7	10
Postretirement Benefits | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		31	30
Postretirement Benefits | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		10	10
Postretirement Benefits | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		23	22
Postretirement Benefits | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		12	10
Postretirement Benefits | Government
Retirement Plans [Line Items]
Fair value of plan assets		23	22
Postretirement Benefits | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		65	67
Postretirement Benefits | Commodities
Retirement Plans [Line Items]
Fair value of plan assets		12	12
Postretirement Benefits | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		13	11
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets		2,268	2,114
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | Cash
Retirement Plans [Line Items]
Fair value of plan assets		38	75
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		499	500
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		252	235
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		566	472
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | Government
Retirement Plans [Line Items]
Fair value of plan assets		280	217
Quoted Prices in Active Markets (Level 1) | U.S. Pension Plans | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		633	615
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets		1,269	804
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Cash
Retirement Plans [Line Items]
Fair value of plan assets		90	98
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		152	68
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		160	104
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		19	16
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Government
Retirement Plans [Line Items]
Fair value of plan assets		452	319
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		385	192
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Quoted Prices in Active Markets (Level 1) | Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		11	7
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits
Retirement Plans [Line Items]
Fair value of plan assets		196	194
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Cash
Retirement Plans [Line Items]
Fair value of plan assets		7	10
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		31	30
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		10	10
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		23	22
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		12	10
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Government
Retirement Plans [Line Items]
Fair value of plan assets		23	22
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		65	67
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Commodities
Retirement Plans [Line Items]
Fair value of plan assets		12	12
Quoted Prices in Active Markets (Level 1) | Postretirement Benefits | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		13	11
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets		679	169
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		193	0
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		15	0
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		89	0
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | Government
Retirement Plans [Line Items]
Fair value of plan assets		65	31
Significant Other Observable Inputs (Level 2) | U.S. Pension Plans | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		317	138
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets		1,215	322
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		165	0
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		293	0
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Government
Retirement Plans [Line Items]
Fair value of plan assets		412	122
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		176	28
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets		169	172
Significant Other Observable Inputs (Level 2) | Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Government
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Commodities
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Significant Other Observable Inputs (Level 2) | Postretirement Benefits | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Government
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets			0	$ 4
Fair Value, Inputs, Level 3 | Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Government
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Cash
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Large-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Small-Cap
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | International-Developed
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | International - Emerging
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Government
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Corporate/Other
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Commodities
Retirement Plans [Line Items]
Fair value of plan assets		0	0
Fair Value, Inputs, Level 3 | Postretirement Benefits | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets		$ 0	$ 0
[1]	* The fair value of certain investments in real estate do not have a readily determinable fair value and requires the fund managers to independently arrive at fair value by calculating net asset value ("NAV") per share. In order to calculate NAV per share, the fund managers value the real estate investments using any one, or a combination of, the following methods: independent third party appraisals, discounted cash flow analysis of net cash flows projected to be generated by the investment and recent sales of comparable investments. Assumptions used to revalue the properties are updated every quarter. Due to the fact that the fund managers calculate NAV per share, the Company utilizes a practical expedient for measuring the fair value of its real-estate investments, as provided for under ASC 820, "Fair Value Measurement." In applying the practical expedient, the Company is not required to further adjust the NAV provided by the fund manager in order to determine the fair value of its investment as the NAV per share is calculated in a manner consistent with the measurement principles of ASC 946, "Financial Services - Investment Companies," and as of the Company's measurement date. The Company believes this is an appropriate methodology to obtain the fair value of these assets. For the component of the real estate portfolio under development, the investments are carried at cost until they are completed and valued by a third party appraiser. In accordance with ASU No. 2015-07, "Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or Its Equivalent)," investments for which fair value is measured using the net asset value per share practical expedient should be disclosed separate from the fair value hierarchy. The fair value amounts presented in this table are intended to permit reconciliation of total plan assets to the amounts presented in the notes to the consolidated financial statements.

Retirement Plans Summary of Cha

Retirement Plans Summary of Changes in Fair Value of Assets Measured Using Significant Unobservable Inputs (Level 3) (Details) $ in Millions	12 Months Ended
	Sep. 30, 2015USD ($)
U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets at beginning of year	$ 2,504
Fair value of plan assets at end of year	2,283
Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets at beginning of year	1,201
Fair value of plan assets at end of year	1,126
Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets at end of year	172
Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets at end of year	7
Fair Value, Inputs, Level 3 | U.S. Pension Plans
Retirement Plans [Line Items]
Fair value of plan assets at end of year	0
Fair Value, Inputs, Level 3 | U.S. Pension Plans | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets at beginning of year	4
Additions net of redemptions	(3)
Realized gain	(1)
Unrealized gain (loss)	0
Fair value of plan assets at end of year	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension
Retirement Plans [Line Items]
Fair value of plan assets at end of year	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Hedge Funds
Retirement Plans [Line Items]
Fair value of plan assets at end of year	0
Fair Value, Inputs, Level 3 | Non-U.S. Pension | Real Estate
Retirement Plans [Line Items]
Fair value of plan assets at end of year	$ 0

Retirement Plans Accumulated Be

Retirement Plans Accumulated Benefit Obligations and Reconciliations of Changes in Projected Benefit Obligation, Changes in Plan Assets and Funded Status (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
U.S. Pension Plans
Retirement Plans [Line Items]
Accumulated Benefit Obligation		$ 4,118	$ 2,985
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year		3,022	2,875
Service cost		16	31	$ 70
Interest cost		104	122	138
Plan participant contributions		0	0
Divestitures		0	0
Actuarial (gain) loss		355	203
Estimated subsidy received		0	0
Curtailment		0	0
Other		(1)	0
Currency translation adjustment		0	0
Projected benefit obligation at end of year		4,169	3,022	2,875
Change in Plan Assets
Fair value of plan assets at beginning of year		2,283	2,504
Actual return on plan assets		267	(4)
Divestitures		0	0
Employer and employee contributions		16	315
Benefits paid		(124)	(201)
Settlement payments		(177)	(8)
Other		0	0
Currency translation adjustment		0	0
Fair value of plan assets at end of year		2,947	2,283	2,504
Total Plan Assets		3,293	2,606
Funded status		(876)	(416)
Amounts recognized in the statement of financial position consist of:
Net amount recognized		$ (876)	$ (416)
Weighted Average Assumptions
Discount rate	[1]	3.70%	4.40%
Rate of compensation increase		3.20%	3.25%
Postretirement Benefits
Retirement Plans [Line Items]
Accumulated Benefit Obligation		$ 0	$ 0
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year		211	224
Service cost		2	3	5
Interest cost		6	9	12
Plan participant contributions		6	6
Divestitures		0	0
Actuarial (gain) loss		5	0
Estimated subsidy received		1	1
Curtailment		0	0
Other		1	(4)
Currency translation adjustment		0	(4)
Projected benefit obligation at end of year		242	211	224
Change in Plan Assets
Fair value of plan assets at beginning of year		194	219
Actual return on plan assets		17	(9)
Divestitures		0	0
Employer and employee contributions		7	8
Benefits paid		(22)	(24)
Settlement payments		0	0
Other		0	0
Currency translation adjustment		0	0
Fair value of plan assets at end of year		196	194	219
Total Plan Assets		196	194
Funded status		(46)	(17)
Amounts recognized in the statement of financial position consist of:
Net amount recognized		$ (46)	$ (17)
Weighted Average Assumptions
Discount rate	[1]	3.30%	3.75%
Non-U.S. Pension
Retirement Plans [Line Items]
Accumulated Benefit Obligation		$ 3,359	$ 1,388
Change in Projected Benefit Obligation
Projected benefit obligation at beginning of year		1,447	1,572
Service cost		30	32	38
Interest cost		44	57	71
Plan participant contributions		1	1
Divestitures		0	(18)
Actuarial (gain) loss		295	7
Estimated subsidy received		0	0
Curtailment		0	5
Other		(1)	43
Currency translation adjustment		(92)	(159)
Projected benefit obligation at end of year		3,522	1,447	1,572
Change in Plan Assets
Fair value of plan assets at beginning of year		1,126	1,201
Actual return on plan assets		113	48
Divestitures		0	(10)
Employer and employee contributions		121	81
Benefits paid		(59)	(55)
Settlement payments		(57)	(10)
Other		0	39
Currency translation adjustment		(88)	(117)
Fair value of plan assets at end of year		2,484	1,126	$ 1,201
Total Plan Assets		2,536	1,177
Funded status		(986)	(270)
Amounts recognized in the statement of financial position consist of:
Net amount recognized		$ (986)	$ (270)
Weighted Average Assumptions
Discount rate	[1]	1.90%	3.15%
Rate of compensation increase		2.75%	3.00%
Other noncurrent assets | U.S. Pension Plans
Change in Projected Benefit Obligation
Benefits and settlements paid		$ 301	$ 209
Other noncurrent assets | Postretirement Benefits
Change in Projected Benefit Obligation
Benefits and settlements paid		22	24
Other noncurrent assets | Non-U.S. Pension
Change in Projected Benefit Obligation
Benefits and settlements paid		116	65
Fair Value, Inputs, Level 1 [Member] | U.S. Pension Plans
Change in Plan Assets
Fair value of plan assets at beginning of year		2,114
Fair value of plan assets at end of year		2,268	2,114
Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		194
Fair value of plan assets at end of year		196	194
Fair Value, Inputs, Level 1 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		804
Fair value of plan assets at end of year		1,269	804
Fair Value, Inputs, Level 2 [Member] | U.S. Pension Plans
Change in Plan Assets
Fair value of plan assets at beginning of year		169
Fair value of plan assets at end of year		679	169
Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Fair Value, Inputs, Level 2 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		322
Fair value of plan assets at end of year		1,215	322
Hedge Funds | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		172
Fair value of plan assets at end of year		169	172
Hedge Funds | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Hedge Funds | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		172
Fair value of plan assets at end of year		169	172
Cash | U.S. Pension Plans
Change in Plan Assets
Fair value of plan assets at beginning of year		75
Fair value of plan assets at end of year		38	75
Cash | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		10
Fair value of plan assets at end of year		7	10
Cash | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		98
Fair value of plan assets at end of year		90	98
Cash | Fair Value, Inputs, Level 1 [Member] | U.S. Pension Plans
Change in Plan Assets
Fair value of plan assets at beginning of year		75
Fair value of plan assets at end of year		38	75
Cash | Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		10
Fair value of plan assets at end of year		7	10
Cash | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		98
Fair value of plan assets at end of year		90	98
Cash | Fair Value, Inputs, Level 2 [Member] | U.S. Pension Plans
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Cash | Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Cash | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Real Estate | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		11
Fair value of plan assets at end of year		13	11
Real Estate | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		7
Fair value of plan assets at end of year			7
Real Estate | Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		11
Fair value of plan assets at end of year		13	11
Real Estate | Fair Value, Inputs, Level 1 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		7
Fair value of plan assets at end of year		11	7
Real Estate | Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Real Estate | Fair Value, Inputs, Level 2 [Member] | Non-U.S. Pension
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Commodities | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		12
Fair value of plan assets at end of year		12	12
Commodities | Fair Value, Inputs, Level 1 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		12
Fair value of plan assets at end of year		12	12
Commodities | Fair Value, Inputs, Level 2 [Member] | Postretirement Benefits
Change in Plan Assets
Fair value of plan assets at beginning of year		0
Fair value of plan assets at end of year		0	0
Continuing Operations [Member] | U.S. Pension Plans
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		21	16
Accrued benefit liability		(896)	(432)
Continuing Operations [Member] | Postretirement Benefits
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		53	37
Accrued benefit liability		(95)	(52)
Continuing Operations [Member] | Non-U.S. Pension
Change in Projected Benefit Obligation
Service cost		30	25
Interest cost		44	46
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		25	20
Accrued benefit liability		(832)	(184)
Discontinued Operations | U.S. Pension Plans
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		1	1
Accrued benefit liability		(2)	(1)
Discontinued Operations | Postretirement Benefits
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		0	0
Accrued benefit liability		(4)	(2)
Discontinued Operations | Non-U.S. Pension
Amounts recognized in the statement of financial position consist of:
Prepaid benefit cost		7	10
Accrued benefit liability		(186)	(116)
Tyco Merger [Member] | U.S. Pension Plans
Change in Projected Benefit Obligation
Acquisitions		974	0
Change in Plan Assets
Acquisitions		705	0
Tyco Merger [Member] | Postretirement Benefits
Change in Projected Benefit Obligation
Acquisitions		30	0
Change in Plan Assets
Acquisitions		0	0
Tyco Merger [Member] | Non-U.S. Pension
Change in Projected Benefit Obligation
Acquisitions		1,635	0
Change in Plan Assets
Acquisitions		1,149	0
Series of Individually Immaterial Business Acquisitions [Member] | U.S. Pension Plans
Change in Projected Benefit Obligation
Acquisitions		0	0
Change in Plan Assets
Acquisitions		0	0
Series of Individually Immaterial Business Acquisitions [Member] | Postretirement Benefits
Change in Projected Benefit Obligation
Acquisitions		2	0
Change in Plan Assets
Acquisitions		0	0
Series of Individually Immaterial Business Acquisitions [Member] | Non-U.S. Pension
Change in Projected Benefit Obligation
Acquisitions		279	0
Change in Plan Assets
Acquisitions		$ 180	$ 0
[1]	The Company considers the expected benefit payments on a plan-by-plan basis when setting assumed discount rates. As a result, the Company uses different discount rates for each plan depending on the plan jurisdiction, the demographics of participants and the expected timing of benefit payments. For the U.S. pension and postretirement plans, the Company uses a discount rate provided by an independent third party calculated based on an appropriate mix of high quality bonds. For the non-U.S. pension and postretirement plans, the Company consistently uses the relevant country specific benchmark indices for determining the various discount rates.At September 30, 2015, the Company changed the method used to estimate the service and interest components of net periodic benefit cost for pension and other postretirement benefits for plans that utilize a yield curve approach. This change compared to the previous method results in different service and interest components of net periodic benefit cost (credit). Historically, the Company estimated these service and interest cost components utilizing a single weighted-average discount rate derived from the yield curve used to measure the benefit obligation at the beginning of the period. The Company elected to utilize a full yield curve approach in the estimation of these components by applying the specific spot rates along the yield curve used in the determination of the benefit obligation to the relevant projected cash flows. The Company made this change to provide a more precise measurement of service and interest costs by improving the correlation between projected benefit cash flows to the corresponding spot yield curve rates. This change does not affect the measurement of the total benefit obligations or annual net periodic benefit cost (credit) as the change in the service and interest costs is completely offset in the net actuarial (gain) loss reported. The change in the service and interest costs was not significant. The Company accounted for this change as a change in accounting estimate.

Amounts in Accumulated Other Co

Amounts in Accumulated Other Comprehensive Income, Exclusive of Tax Impacts, that have not yet been Recognized as Components of Net Periodic Benefit Costs (Details) $ in Millions	Sep. 30, 2016USD ($)
Pension Benefits
Accumulated other comprehensive loss (income)
Net transition obligation	$ 1
Net prior service credit	4
Total	5
Postretirement Benefits
Accumulated other comprehensive loss (income)
Net transition obligation	0
Net prior service credit	0
Total	$ 0

Amounts in Accumulated Other116

Amounts in Accumulated Other Comprehensive Income Expected to be Recognized as Components of Net Periodic Benefit Cost over Next Fiscal Year (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Amortization of:
Defined Benefit Plan, Amortization of Gains (Losses)	$ (393)	$ (416)	$ (187)
Pension Benefits
Amortization of:
Net transition obligation	0
Net prior service credit	1
Total	1
Non-U.S. Pension
Retirement Plans [Line Items]
Service cost	30	32	38
Amortization of:
Interest cost	44	57	71
Defined Benefit Plan, Expected Return on Plan Assets	(61)	(71)	(75)
Defined Benefit Plan, Amortization of Gains (Losses)	237	14	172
Amortization of prior service cost (credit)	1	(1)	(1)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0	(15)	(2)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	6	0	1
Defined Benefit Plan, Net Periodic Benefit Cost	$ (257)	$ (16)	$ (204)
Discount rate	3.10%	3.00%	3.60%
Expected return on plan assets	4.50%	4.50%	4.75%
Rate of compensation increase	3.30%	2.60%	2.60%
Postretirement Benefits
Retirement Plans [Line Items]
Service cost	$ 2	$ 3	$ 5
Amortization of:
Net transition obligation	0
Net prior service credit	0
Total	0
Interest cost	6	9	12
Defined Benefit Plan, Expected Return on Plan Assets	(10)	(12)	(12)
Defined Benefit Plan, Amortization of Gains (Losses)	(2)	21	(24)
Amortization of prior service cost (credit)	(1)	(1)	(7)
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost	$ 5	$ (20)	$ 26
Discount rate	3.75%	4.35%	4.90%
Expected return on plan assets	5.45%	5.75%	5.80%
U.S. Pension Plans
Retirement Plans [Line Items]
Service cost	$ 16	$ 31	$ 70
Amortization of:
Interest cost	104	122	138
Defined Benefit Plan, Expected Return on Plan Assets	(191)	(181)	(207)
Defined Benefit Plan, Amortization of Gains (Losses)	268	387	126
Amortization of prior service cost (credit)	0	0	1
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Curtailments	0	0	0
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	11	1	15
Defined Benefit Plan, Net Periodic Benefit Cost	$ (208)	$ (360)	$ (143)
Discount rate	4.40%	4.35%	4.90%
Expected return on plan assets	7.50%	7.50%	8.00%
Rate of compensation increase	3.25%	3.25%	3.30%
Discontinued Operations | Non-U.S. Pension
Amortization of:
Defined Benefit Plan, Net Periodic Benefit Cost	$ (111)	$ 1	$ (107)
Discontinued Operations | Postretirement Benefits
Amortization of:
Defined Benefit Plan, Net Periodic Benefit Cost	(1)	(1)	7
Discontinued Operations | U.S. Pension Plans
Amortization of:
Defined Benefit Plan, Net Periodic Benefit Cost	(1)	(1)	(1)
Continuing Operations [Member] | Non-U.S. Pension
Retirement Plans [Line Items]
Service cost	30	25
Amortization of:
Interest cost	44	46
Defined Benefit Plan, Net Periodic Benefit Cost	146	17	97
Continuing Operations [Member] | Postretirement Benefits
Amortization of:
Defined Benefit Plan, Net Periodic Benefit Cost	(6)	19	(19)
Continuing Operations [Member] | U.S. Pension Plans
Amortization of:
Defined Benefit Plan, Net Periodic Benefit Cost	$ 207	$ 359	$ 142

Retirement Plans Components of

Retirement Plans Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Components of Net Periodic Benefit Cost:
Net actuarial (gain) loss	$ 393	$ 416	$ 187
U.S. Pension Plans
Components of Net Periodic Benefit Cost:
Service cost	16	31	70
Interest cost	104	122	138
Expected return on plan assets	(191)	(181)	(207)
Net actuarial (gain) loss	(268)	(387)	(126)
Amortization of prior service cost (credit)	0	0	1
Curtailment gain	0	0	0
Settlement (gain) loss	11	1	15
Net periodic benefit cost (credit)	$ (208)	$ (360)	$ (143)
Expense Assumptions:
Discount rate	4.40%	4.35%	4.90%
Expected return on plan assets	7.50%	7.50%	8.00%
Rate of compensation increase	3.25%	3.25%	3.30%
Non-U.S. Pension
Components of Net Periodic Benefit Cost:
Service cost	$ 30	$ 32	$ 38
Interest cost	44	57	71
Expected return on plan assets	(61)	(71)	(75)
Net actuarial (gain) loss	(237)	(14)	(172)
Amortization of prior service cost (credit)	1	(1)	(1)
Curtailment gain	0	(15)	(2)
Settlement (gain) loss	6	0	1
Net periodic benefit cost (credit)	$ (257)	$ (16)	$ (204)
Expense Assumptions:
Discount rate	3.10%	3.00%	3.60%
Expected return on plan assets	4.50%	4.50%	4.75%
Rate of compensation increase	3.30%	2.60%	2.60%
Postretirement Benefits
Components of Net Periodic Benefit Cost:
Service cost	$ 2	$ 3	$ 5
Interest cost	6	9	12
Expected return on plan assets	(10)	(12)	(12)
Net actuarial (gain) loss	2	(21)	24
Amortization of prior service cost (credit)	(1)	(1)	(7)
Curtailment gain	0	0	0
Settlement (gain) loss	0	0	0
Net periodic benefit cost (credit)	$ 5	$ (20)	$ 26
Expense Assumptions:
Discount rate	3.75%	4.35%	4.90%
Expected return on plan assets	5.45%	5.75%	5.80%
Discontinued Operations | U.S. Pension Plans
Components of Net Periodic Benefit Cost:
Net periodic benefit cost (credit)	$ (1)	$ (1)	$ (1)
Discontinued Operations | Non-U.S. Pension
Components of Net Periodic Benefit Cost:
Net periodic benefit cost (credit)	(111)	1	(107)
Discontinued Operations | Postretirement Benefits
Components of Net Periodic Benefit Cost:
Net periodic benefit cost (credit)	(1)	(1)	7
Continuing Operations [Member] | U.S. Pension Plans
Components of Net Periodic Benefit Cost:
Net periodic benefit cost (credit)	207	359	142
Continuing Operations [Member] | Non-U.S. Pension
Components of Net Periodic Benefit Cost:
Service cost	30	25
Interest cost	44	46
Net periodic benefit cost (credit)	146	17	97
Continuing Operations [Member] | Postretirement Benefits
Components of Net Periodic Benefit Cost:
Net periodic benefit cost (credit)	$ (6)	$ 19	$ (19)

Significant Restructuring an118

Significant Restructuring and Impairment Costs (Detail) $ in Millions	12 Months Ended				48 Months Ended
	Sep. 30, 2016USD ($)PlantEmployees	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2013USD ($)	Sep. 30, 2016USD ($)PlantEmployees
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 288	$ 215	$ 165
Number of employees to be severed | Employees					7,700
Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date | Employees	4,700				4,700
Restructuring And Related Cost Expected Number Of Plants To Be Closed | Plant	8
Number Of Plants Closed | Plant	1				1
Building Efficiency
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					6,200
Power Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 66	11	16
Number of employees to be severed | Employees					900
Adient [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	332	182	159
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	445				$ 445
Restructuring and impairment costs	620
2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	288
2016 Restructuring Plan [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	414				414
Restructuring and impairment costs	368
2016 Restructuring Plan [Member] | Adient [Member] | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	332
Committed restructuring liabilities assumed from Tyco Merger [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	78
Committed restructuring liabilities assumed from Tyco Merger [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	78
2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	117	214			117
Restructuring and impairment costs		397
2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		215
2015 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	117	191			117
Restructuring and impairment costs		191
2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	117				117
2015 Restructuring Plan [Member] | Adient [Member] | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	182
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	23	99	182		23
Restructuring and impairment costs			377
2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			165
2014 Restructuring Plan | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			212
2014 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	44	118	183		44
Restructuring and impairment costs			191
2014 Restructuring Plan | Adient [Member] | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			159
2014 Restructuring Plan | Automotive Experience Electronics | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			53
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	24	68	191	$ 342	24
Restructuring and impairment costs				985
2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				191
2013 Restructuring Plan | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				794
2013 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	42	85	198	335	42
Restructuring and impairment costs				392
2013 Restructuring Plan | Adient [Member] | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				712
2013 Restructuring Plan | Automotive Experience Electronics | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				28
2013 Restructuring Plan | Global Workplace Solutions | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				54
Building Efficiency Systems and Service North America [Member] | Building Efficiency
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	2	3	12
Building Efficiency Systems and Service North America [Member] | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	2
Building Efficiency Systems and Service North America [Member] | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		3
Building Efficiency Systems and Service North America [Member] | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			12
Building Efficiency Systems and Service North America [Member] | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				35
Corporate | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	161
Corporate | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		166
Corporate | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			7
Corporate | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				17
Building Efficiency Other | Building Efficiency
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	16	13	119
Building Efficiency Other | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	16
Building Efficiency Other | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		13
Building Efficiency Other | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			119
Building Efficiency Other | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				70
Building Efficiency Products North America [Member] | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	9
Building Efficiency Products North America [Member] | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		11
Building Efficiency Products North America [Member] | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			7
Building Efficiency Products North America [Member] | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				28
Power Solutions | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	66
Power Solutions | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		11
Power Solutions | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			16
Power Solutions | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				36
Building Efficiency Asia | Building Efficiency
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	26	11	4
Building Efficiency Asia | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	26
Building Efficiency Asia | 2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		$ 11
Building Efficiency Asia | 2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			$ 4
Building Efficiency Asia | 2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				$ 5
Buildings Tyco [Member] | 2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	8
Buildings Tyco [Member] | Committed restructuring liabilities assumed from Tyco Merger [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	78
Other current liabilities | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	229				229
Other current liabilities | 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	5				5
Other current liabilities | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	12				12
Other current liabilities | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	11				11
Liabilities held for sale | 2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	216				216
Liabilities held for sale | 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	112				112
Liabilities held for sale | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	11				11
Liabilities held for sale | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 13				$ 13

Significant Restructuring an119

Significant Restructuring and Impairment Costs (Changes in Company's Restructuring Reserve) (Detail) $ in Millions	12 Months Ended				48 Months Ended
	Sep. 30, 2016USD ($)PlantEmployees	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2013USD ($)	Sep. 30, 2016USD ($)PlantEmployees
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 288	$ 215	$ 165
Restructuring and Related Cost, Expected Number of Positions Eliminated | Employees					7,700
Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date | Employees	4,700				4,700
Restructuring And Related Cost Expected Number Of Plants To Be Closed | Plant	8
Number Of Plants Closed | Plant	1				1
Transfer From Held for Sale | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			31
2016 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Currency Total Original Reserve $ 368 $ 190 $ 62 $ — $ 620 Acquired Tyco restructuring reserves 78 — — 78 Utilized—cash (32 ) — — — (32 ) Utilized—noncash — (190 ) (32 ) 1 (221 ) Balance at September 30, 2016 $ 414 $ — $ 30 $ 1 $ 445
Restructuring and impairment costs	$ 620
Utilized - cash	(32)
Utilized - noncash	(221)
Restructuring reserve, ending balance	445				$ 445
2016 Restructuring Plan [Member] | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	190
Utilized - cash	0
Utilized - noncash	(190)
Restructuring reserve, ending balance	0				0
2016 Restructuring Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	62
Utilized - cash	0
Utilized - noncash	(32)
Restructuring reserve, ending balance	30				30
2016 Restructuring Plan [Member] | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	0
Utilized - cash	0
Utilized - noncash	1
Restructuring reserve, ending balance	1				1
2016 Restructuring Plan [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	368
Utilized - cash	(32)
Utilized - noncash	0
Restructuring reserve, ending balance	414				414
2016 Restructuring Plan [Member] | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	288
Committed restructuring liabilities assumed from Tyco Merger [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	78
Committed restructuring liabilities assumed from Tyco Merger [Member] | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	0
Committed restructuring liabilities assumed from Tyco Merger [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	0
Committed restructuring liabilities assumed from Tyco Merger [Member] | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs
Committed restructuring liabilities assumed from Tyco Merger [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 78
2015 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2015 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Total Original Reserve $ 191 $ 183 $ 23 $ 397 Utilized—noncash — (183 ) — (183 ) Balance at September 30, 2015 $ 191 $ — $ 23 $ 214 Utilized—cash (74 ) — (23 ) (97 ) Balance at September 30, 2016 $ 117 $ — $ — $ 117
Restructuring and impairment costs		397
Restructuring reserve, beginning balance	$ 214
Utilized - cash	(97)
Utilized - noncash		(183)
Restructuring reserve, ending balance	117	214			117
2015 Restructuring Plan | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		183
Restructuring reserve, beginning balance	0
Utilized - cash	0
Utilized - noncash		(183)
Restructuring reserve, ending balance	0	0			0
2015 Restructuring Plan | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		23
Restructuring reserve, beginning balance	23
Utilized - cash	(23)
Utilized - noncash		0
Restructuring reserve, ending balance	0	23			0
2015 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		191
Restructuring reserve, beginning balance	191
Utilized - cash	(74)
Utilized - noncash		0
Restructuring reserve, ending balance	$ 117	191			117
2015 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs		215
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2014 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 191 $ 134 $ 47 $ 5 $ — $ 377 Utilized—cash (8 ) — — — — (8 ) Utilized—noncash — (134 ) (47 ) — (6 ) (187 ) Balance at September 30, 2014 $ 183 $ — $ — $ 5 $ (6 ) $ 182 Utilized—cash (65 ) — — (5 ) — (70 ) Utilized—noncash — — — — (13 ) (13 ) Balance at September 30, 2015 $ 118 $ — $ — $ — $ (19 ) $ 99 Utilized—cash (74 ) — — — — (74 ) Utilized—noncash — — — — (2 ) (2 ) Balance at September 30, 2016 $ 44 $ — $ — $ — $ (21 ) $ 23
Restructuring and impairment costs			377
Restructuring reserve, beginning balance	$ 99	182
Utilized - cash	(74)	(70)	(8)
Utilized - noncash	(2)	(13)	(187)
Restructuring reserve, ending balance	23	99	182		23
2014 Restructuring Plan | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			134
Restructuring reserve, beginning balance	0	0
Utilized - cash	0	0	0
Utilized - noncash	0	0	(134)
Restructuring reserve, ending balance	0	0	0		0
2014 Restructuring Plan | Goodwill Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			47
Restructuring reserve, beginning balance	0	0
Utilized - cash	0	0	0
Utilized - noncash	0	0	(47)
Restructuring reserve, ending balance	0	0	0		0
2014 Restructuring Plan | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			5
Restructuring reserve, beginning balance	0	5
Utilized - cash	0	(5)	0
Utilized - noncash	0	0	0
Restructuring reserve, ending balance	0	0	5		0
2014 Restructuring Plan | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			0
Restructuring reserve, beginning balance	(19)	(6)
Utilized - cash	0	0	0
Utilized - noncash	(2)	(13)	(6)
Restructuring reserve, ending balance	(21)	(19)	(6)		(21)
2014 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			191
Restructuring reserve, beginning balance	118	183
Utilized - cash	(74)	(65)	(8)
Utilized - noncash	0	0	0
Restructuring reserve, ending balance	$ 44	118	183		44
2014 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			165
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]	The following table summarizes the changes in the Company’s 2013 Plan reserve (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Goodwill Impairment Other Currency Total Original Reserve $ 392 $ 156 $ 430 $ 7 $ — $ 985 Utilized—cash (26 ) — — — — (26 ) Utilized—noncash — (156 ) (430 ) (4 ) 4 (586 ) Transfer to liabilities held for sale (31 ) — — — — (31 ) Balance at September 30, 2013 $ 335 $ — $ — $ 3 $ 4 $ 342 Utilized—cash (144 ) — — (3 ) — (147 ) Utilized—noncash — — — — (11 ) (11 ) Transfer from liabilities held for sale 31 — — — — 31 Transfer to liabilities held for sale (24 ) — — — — (24 ) Balance at September 30, 2014 $ 198 $ — $ — $ — $ (7 ) $ 191 Utilized—cash (113 ) — — — — (113 ) Utilized—noncash — — — — (10 ) (10 ) Balance at September 30, 2015 $ 85 $ — $ — $ — $ (17 ) $ 68 Utilized—cash (43 ) — — — — (43 ) Utilized—noncash — — — — (1 ) (1 ) Balance at September 30, 2016 $ 42 $ — $ — $ — $ (18 ) $ 24
Restructuring and impairment costs				$ 985
Restructuring reserve, beginning balance	$ 68	191	342
Utilized - cash	(43)	(113)	(147)	(26)
Utilized - noncash	(1)	(10)	(11)	(586)
Restructuring reserve, ending balance	24	68	191	342	24
2013 Restructuring Plan | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				156
Restructuring reserve, beginning balance	0	0	0
Utilized - cash	0	0	0	0
Utilized - noncash	0	0	0	(156)
Restructuring reserve, ending balance	0	0	0	0	0
2013 Restructuring Plan | Goodwill Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				430
Restructuring reserve, beginning balance	0	0	0
Utilized - cash	0	0	0	0
Utilized - noncash	0	0	0	(430)
Restructuring reserve, ending balance	0	0	0	0	0
2013 Restructuring Plan | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				7
Restructuring reserve, beginning balance	0	0	3
Utilized - cash	0	0	(3)	0
Utilized - noncash	0	0	0	(4)
Restructuring reserve, ending balance	0	0	0	3	0
2013 Restructuring Plan | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				0
Restructuring reserve, beginning balance	(17)	(7)	4
Utilized - cash	0	0	0	0
Utilized - noncash	(1)	(10)	(11)	4
Restructuring reserve, ending balance	(18)	(17)	(7)	4	(18)
2013 Restructuring Plan | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				392
Restructuring reserve, beginning balance	85	198	335
Utilized - cash	(43)	(113)	(144)	(26)
Utilized - noncash	0	0	0	0
Restructuring reserve, ending balance	42	85	198	335	$ 42
2013 Restructuring Plan | Transfer To Held for Sale [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			(24)	(31)
2013 Restructuring Plan | Transfer To Held for Sale [Member] | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			0	0
2013 Restructuring Plan | Transfer To Held for Sale [Member] | Goodwill Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			0	0
2013 Restructuring Plan | Transfer To Held for Sale [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			0	0
2013 Restructuring Plan | Transfer To Held for Sale [Member] | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			0	0
2013 Restructuring Plan | Transfer To Held for Sale [Member] | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs			(24)	(31)
2013 Restructuring Plan | Continuing Operations [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs				$ 191
2013 Restructuring Plan | Transfer From Held for Sale
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			31
2013 Restructuring Plan | Transfer From Held for Sale | Fixed Asset Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			0
2013 Restructuring Plan | Transfer From Held for Sale | Goodwill Impairment
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			0
2013 Restructuring Plan | Transfer From Held for Sale | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			0
2013 Restructuring Plan | Transfer From Held for Sale | Currency Translation
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			0
2013 Restructuring Plan | Transfer From Held for Sale | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Accrual Adjustment			31
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	161	166	7
Restructuring and Related Cost, Expected Number of Positions Eliminated | Employees					600
Building Efficiency
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated | Employees					6,200
Power Solutions
Restructuring Cost and Reserve [Line Items]
Restructuring and impairment costs	$ 66	$ 11	$ 16
Restructuring and Related Cost, Expected Number of Positions Eliminated | Employees					900

Impairment of Long-Lived Ass120

Impairment of Long-Lived Assets (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		$ 221	$ 183	$ 181
2016 Restructuring Plan [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		103
2016 Restructuring Plan [Member] | Power Solutions
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		64
2016 Restructuring Plan [Member] | Building Efficiency Other
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		3
2016 Restructuring Plan [Member] | Corporate
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		24
2016 Restructuring Plan [Member] | Building Efficiency Products North America [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		8
2016 Restructuring Plan [Member] | Building Efficiency Asia
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges		$ 4
2016 Restructuring Plan [Member] | Discontinued Operations | Adient [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges	$ 87
2015 Restructuring Plan [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges			156
2015 Restructuring Plan [Member] | Building Efficiency Other
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges			16
2015 Restructuring Plan [Member] | Building Efficiency Systems and Service North America [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges			1
2015 Restructuring Plan [Member] | Corporate
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges			$ 139
2015 Restructuring Plan [Member] | Discontinued Operations | Adient [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges	27
2014 Restructuring Plan
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges				39
2014 Restructuring Plan | Building Efficiency Other
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges				34
2014 Restructuring Plan | Corporate
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges				$ 5
2014 Restructuring Plan | Discontinued Operations | Adient [Member]
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges	52
2014 Restructuring Plan | Discontinued Operations | Automotive Experience Electronics
Impairment of Long Lived Assets [Line Items]
Asset Impairment Charges	$ 43

Income Taxes Significant Compon

Income Taxes Significant Components of Company's Income Tax Provision from Continuing Operations (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Tax expense at federal statutory rate				$ 371	$ 326	$ 363
State income taxes, net of federal benefit				(6)	(6)	(5)
Foreign income tax expense at different rates and foreign losses without tax benefits				(122)	(175)	(55)
U.S. tax on foreign income				(194)	39	(233)
Reserve and valuation allowance adjustments				0	(99)	34
U.S. credits and incentives				(14)	(7)	(5)
Business divestitures				163	0	0
Restructuring and impairment costs				28	0	30
Change in assertion over permanently reinvested earnings		$ 780
Other	$ (85)		$ (51)	(29)	(7)	(36)
Income tax provision				$ 197	$ 71	$ 93

Income Taxes Reconciliation of

Income Taxes Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax Disclosure [Abstract]
Beginning balance		$ 1,052	$ 1,493	$ 1,187
Additions for tax positions related to the current year		442	329	315
Additions for tax positions of prior years		15	23	31
Reductions for tax positions of prior years		(66)	(111)	(26)
Settlements with taxing authorities		(104)	(541)	(9)
Statute closings		(30)	(18)	(5)
Audit Resolutions	$ (99)	0	123	0
Ending balance	$ 1,052	1,706	1,052	1,493
Unrecognized Tax Benefits, Increase Resulting from Acquisition		$ 397	$ 0	$ 0

Income Taxes Tax Jurisdictions

Income Taxes Tax Jurisdictions and Years Currently under Audit Exam (Details)	12 Months Ended
	Sep. 30, 2016
Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Expiration period of net operating loss carryforwards	Dec. 31, 2017
Latest Tax Year [Member]
Income Tax Examination [Line Items]
Expiration period of net operating loss carryforwards	Dec. 31, 2036
United States | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,010
United States | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,014
Brazil | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,011
Brazil | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,012
CANADA
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,014
France | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,011
France | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,015
Germany | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,007
Germany | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,012
Korea
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,015
SPAIN | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,011
SPAIN | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,014
United Kingdom | Earliest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,011
United Kingdom | Latest Tax Year [Member]
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,014
Examination Period One | Italy
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,006
Examination Period Two | Italy
Income Tax Examination [Line Items]
Tax jurisdictions and years currently under audit exam	2,011

Income Taxes Components of Prov

Income Taxes Components of Provision for Income Taxes on Continuing Operations (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Components of Income Tax [Line Items]
Income from Continuing Operations before Income Taxes, Domestic				$ 943	$ 418	$ 898
Current
Federal				169	(688)	(90)
State				5	(33)	(2)
Foreign				788	550	397
Total				962	(171)	305
Deferred
Federal				(321)	410	(137)
State				(15)	(2)	(8)
Foreign				(429)	(166)	(67)
Total				(765)	242	(212)
Income tax provision				197	71	93
Income (Loss) from Continuing Operations before Income Taxes, Foreign				119	513	139
Income Taxes Paid				1,388	1,163	782
Taxes Payable, Current				1,505	291
Undistributed Earnings of Foreign Subsidiaries				5,500
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount		$ 780
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	$ (85)		$ (51)	$ (29)	(7)	(36)
Global Workplace Solutions
Deferred
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount					$ 680	$ 35

Income Taxes Deferred Taxes Cla

Income Taxes Deferred Taxes Classified in Consolidated Statements of Financial Position (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Other noncurrent assets	$ 2,467	$ 1,630
Other noncurrent liabilities	(1,542)	(203)
Net deferred tax asset	$ 925	$ 1,427

Income Taxes Temporary Differen

Income Taxes Temporary Differences And Carryforwards in Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Deferred Tax Expense from Stock Options Exercised	$ 180
Deferred tax assets
Accrued expenses and reserves	1,175	$ 215
Employee and retiree benefits	438	241
Net operating loss and other credit carryforwards	4,483	2,460
Research and development	85	54
Joint ventures and partnerships	49	10
Deferred Tax Assets, Other	19	12
Gross deferred tax assets	6,249	2,992
Valuation allowances	(3,400)	(1,151)
Net deferred tax assets	2,849	1,841
Net deferred tax asset	925	1,427
Deferred tax liabilities
Property, plant and equipment	87	125
Intangible assets	1,837	289
Net deferred tax liabilities	$ 1,924	$ 414

Income Taxes Valuation Allowanc

Income Taxes Valuation Allowance, Additional Details (Details) - USD ($) $ in Millions	3 Months Ended				12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2016
Income Tax Disclosure [Abstract]
Acquisition of businesses					$ 2,400
Valuation Allowance, Deferred Tax Asset, Increase, Amount	$ 0	$ 0	$ 34	$ 21

Income Taxes Uncertain Tax Posi

Income Taxes Uncertain Tax Position, Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]
Income Tax Examination, estimate of impact		$ 50
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities		(440)
Unrecognized Tax Benefits, Decrease (Increase) Resulting from Tax Audit Resolution	$ 99	0	$ (123)	$ 0
Unrecognized Tax Benefits	1,052	1,706	1,052	1,493	$ 1,187
Amount of unrecognized tax benefits which may impact effective tax rate	997	1,604	997	1,343
Total net accrued interest, net of tax benefit	$ 33	$ 55	$ 33	$ 96

Income Taxes Other Tax Matters

Income Taxes Other Tax Matters (Details) - USD ($)	3 Months Ended								12 Months Ended
	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2015	Jun. 30, 2015	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Other Tax Matters [Line Items]
Nondeductible expense related to restructuring and impairment									$ 28,000,000	$ 0	$ 30,000,000
Income tax provision									197,000,000	71,000,000	93,000,000
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount		$ (85,000,000)				$ (51,000,000)			(29,000,000)	(7,000,000)	(36,000,000)
Restructuring and impairment costs									288,000,000	215,000,000	165,000,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount			$ 780,000,000
Post sale contingent tax indemnification liabilities	$ 290,000,000								290,000,000
Business Divestitures, Not Specific
Other Tax Matters [Line Items]
Post sale contingent tax indemnification liabilities	255,000,000								255,000,000
(Loss) on divestiture	(12,000,000)
Global Workplace Solutions
Other Tax Matters [Line Items]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount										680,000,000	35,000,000
Income from discontinued operations before income taxes										$ (1,203,000,000)	$ (119,000,000)
Headliner and Sunvisor [Member]
Other Tax Matters [Line Items]
(Loss) on divestiture							$ 95,000,000
Income tax expense from disposal							$ 38,000,000
Automotive Experience Interiors | Business Divestitures, Not Specific
Other Tax Matters [Line Items]
(Loss) on divestiture								$ (9,000,000)
Automotive Experience Interiors | Yanfeng Automotive Trim Systems [Member]
Other Tax Matters [Line Items]
Income from discontinued operations before income taxes				$ 145,000,000
Discontinued Operation, Gain on Disposal of Discontinued Operation, Net of Tax				38,000,000
Automotive Experience Interiors | Interiors
Other Tax Matters [Line Items]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount				$ 223,000,000	$ 75,000,000
2016 Restructuring Plan [Member]
Other Tax Matters [Line Items]
Restructuring and impairment costs									620,000,000
Tyco Merger [Member]
Other Tax Matters [Line Items]
Income tax provision	$ 137,000,000
Adient spin-off [Member]
Other Tax Matters [Line Items]
Income tax provision									95,000,000
Substantial business reorganizations [Member]
Other Tax Matters [Line Items]
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount									1,891,000,000
Automotive Experience
Other Tax Matters [Line Items]
Income tax provision									$ 26,000,000

Income Taxes Changes in Tax Leg

Income Taxes Changes in Tax Legislation and Statutory Tax Rate (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Dec. 31, 2013	Sep. 30, 2016
Mexico | Change in Tax Law [Member]
Change in Tax Legislation and Statutory Tax Rates [Line Items]
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount		$ 25
JAPAN
Change in Tax Legislation and Statutory Tax Rates [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	$ 17
Earliest Tax Year [Member]
Change in Tax Legislation and Statutory Tax Rates [Line Items]
Tax Credit Carryforward, Expiration Date			Dec. 31, 2020
Latest Tax Year [Member]
Change in Tax Legislation and Statutory Tax Rates [Line Items]
Tax Credit Carryforward, Expiration Date			Dec. 31, 2024

Income Taxes Income Taxes, Cont

Income Taxes Income Taxes, Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Income Tax, Continuing Operations [Line Items]
Operating Loss Carryforwards	$ 14,700
Income from Continuing Operations before Income Taxes, Domestic	943	$ 418	$ 898
Net Operating Loss Carry Forwards That Will Expire	4,400
Tax Credit Carryforward, Amount	$ 80
Earliest Tax Year [Member]
Income Tax, Continuing Operations [Line Items]
Expiration period of net operating loss carryforwards	Dec. 31, 2017
Tax Credit Carryforward, Expiration Date	Dec. 31, 2020
Latest Tax Year [Member]
Income Tax, Continuing Operations [Line Items]
Expiration period of net operating loss carryforwards	Dec. 31, 2036
Tax Credit Carryforward, Expiration Date	Dec. 31, 2024

Segment Information (Details)

Segment Information (Details)	12 Months Ended
	Sep. 30, 2016PersonSegment	Sep. 30, 2015Person	Sep. 30, 2014Person
Segment Reporting Information [Line Items]
Number of reportable segments	6
Number of primary businesses	2
Percentage of individual customer sales to consolidated net sales threshold for disclosure as major customer	10.00%	10.00%	10.00%
Number of customers that individually accounted for 10 % or more of consolidated net sales | Person	0	0	0

Segment Information Financial I

Segment Information Financial Information Related to Company's Reportable Segments (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Segment Information [Line Items]
Segment EBITA		$ 2,754	$ 2,327	$ 2,084
Amortization of Intangible Assets		(116)	(74)	(61)
General corporate expenses	[1]	(607)	(417)	(408)
Net Sales		20,837	17,100	16,717
Net financing charges		(289)	(274)	(226)
Restructuring and impairment costs		(288)	(215)	(165)
Equity income in segment income		174	80	110
Net mark-to-market adjustments on pension and postretirement plans		(393)	(416)	(187)
Income from continuing operations before income taxes		1,061	931	1,037
Total assets		63,179	29,590	32,777
Assets held for sale		13,186	10,613	12,565
Depreciation and amortization		953	860	955
Capital expenditures		1,249	1,135	1,199
Building Efficiency
Segment Information [Line Items]
Segment EBITA		1,367	1,086	945
Net Sales		13,376	10,510	10,085
Total assets		11,658	9,383	9,558
Depreciation and amortization		252	181	152
Capital expenditures		332	217	214
Building Efficiency | Building Efficiency Systems and Service North America [Member]
Segment Information [Line Items]
Segment EBITA	[2]	500	419	396
Net Sales		4,292	4,184	4,098
Restructuring and impairment costs		(2)	(3)	(12)
Total assets		2,338	2,332	2,341
Depreciation and amortization		29	26	28
Capital expenditures		13	17	24
Building Efficiency | Building Efficiency Products North America [Domain]
Segment Information [Line Items]
Restructuring and impairment costs		(9)	(11)	(7)
Building Efficiency | Building Efficiency Products North America [Member]
Segment Information [Line Items]
Segment EBITA	[3]	271	380	279
Net Sales		2,488	2,450	1,807
Equity income in segment income		10	9	7
Total assets		4,236	4,193	4,157
Depreciation and amortization		111	115	79
Capital expenditures		192	130	110
Building Efficiency | Global Workplace Solutions
Segment Information [Line Items]
Capital expenditures		0	13	15
Building Efficiency | Building Efficiency Asia
Segment Information [Line Items]
Segment EBITA	[4]	541	215	294
Net Sales		4,830	1,985	2,077
Restructuring and impairment costs		(26)	(11)	(4)
Equity income in segment income		100		21
Total assets		3,668	1,387	1,418
Depreciation and amortization		97	24	22
Capital expenditures		105	26	35
Building Efficiency | Building Efficiency Other
Segment Information [Line Items]
Segment EBITA	[5]	55	72	(24)
Net Sales		1,766	1,891	2,103
Restructuring and impairment costs		(16)	(13)	(119)
Equity income in segment income		15	14	7
Total assets		1,416	1,471	1,642
Depreciation and amortization		15	16	23
Capital expenditures		22	31	30
Building Efficiency | Buildings Tyco [Member]
Segment Information [Line Items]
Net Sales		808	0	0
Total assets	[6]	28,097	0	0
Depreciation and amortization		52	0	0
Capital expenditures		14	0	0
Buildings Tyco [Member]
Segment Information [Line Items]
Segment EBITA	[7]	60	0	0
Buildings [Member]
Segment Information [Line Items]
Segment EBITA		1,427	1,086	945
Net Sales		14,184	10,510	10,085
Total assets		39,755	9,383	9,558
Depreciation and amortization		304	181	152
Capital expenditures		346	217	214
Buildings [Member] | Buildings Tyco [Member]
Segment Information [Line Items]
Restructuring and impairment costs		(8)
Equity income in segment income		1
Automotive Experience
Segment Information [Line Items]
Capital expenditures		395	455	565
Automotive Experience | Seating
Segment Information [Line Items]
Capital expenditures		392	356	376
Automotive Experience | Interiors
Segment Information [Line Items]
Capital expenditures		3	99	162
Automotive Experience | Automotive Experience Electronics
Segment Information [Line Items]
Capital expenditures		0	0	27
Power Solutions
Segment Information [Line Items]
Segment EBITA		1,327	1,241	1,139
Net Sales		6,653	6,590	6,632
Restructuring and impairment costs		(66)	(11)	(16)
Equity income in segment income		48	57	75
Total assets		6,859	6,590	6,888
Depreciation and amortization		238	286	306
Capital expenditures		357	252	294
Unallocated
Segment Information [Line Items]
Total assets		3,379	3,004	3,766
Corporate
Segment Information [Line Items]
Restructuring and impairment costs		(161)	(166)	(7)
Depreciation and amortization		80	60	55
Capital expenditures		151	211	126
Discontinued Operations
Segment Information [Line Items]
Depreciation and amortization		$ 331	$ 333	$ 442
[1]	Corporate expenses for the years ended September 30, 2016, 2015 and 2014 excludes $161 million, $166 million and $7 million, respectively, of restructuring and impairment costs.
[2]	Building Efficiency - Systems and Service North America segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $2 million, $3 million and $12 million, respectively, of restructuring and impairment costs.
[3]	Building Efficiency - Products North America segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $9 million, $11 million and $7 million, respectively, of restructuring and impairment costs. For the years ended September 30, 2016, 2015 and 2014, Products North America segment EBITA includes $10 million, $9 million and $7 million, respectively, of equity income.
[4]	Building Efficiency - Asia segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $26 million,$11 million and $4 million, respectively, of restructuring and impairment costs. For the years ended September 30, 2016 and 2014, Asia segment EBITA includes $100 million and $21 million, respectively, of equity income.
[5]	Building Efficiency - Rest of World segment EBITA for the years ended September 30, 2016, 2015 and 2014 excludes $16 million, $13 million and $119 million, respectively, of restructuring and impairment costs. For the years ended September 30, 2016, 2015 and 2014, Rest of World segment EBITA includes $15 million, $14 million and $7 million, respectively, of equity income.
[6]	Current year and prior year amounts exclude assets held for sale. Refer to Note 4, "Discontinued Operations," of the notes to consolidated financial statements for further information regarding the Company's disposal groups classified as held for sale.
[7]	Tyco segment EBITA for the year ended September 30, 2016 excludes $8 million of restructuring and impairment costs. For the year ended September 30, 2016, Tyco segment EBITA includes $1 million of equity income.

Segment Information Financia134

Segment Information Financial Information Related to Company's Reportable Segments (Additional Information) (Details) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2016USD ($)	Sep. 30, 2016USD ($)Segment	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)
Segment Information [Line Items]
Number of reportable segments | Segment		6
Restructuring and impairment costs		$ 288	$ 215	$ 165
Equity income in segment income		174	80	110
(Gain) loss on divestitures		26	1,340	(111)
Power Solutions
Segment Information [Line Items]
Restructuring and impairment costs		66	11	16
Equity income in segment income		48	57	75
Building Efficiency Systems and Service North America [Member]
Segment Information [Line Items]
(Gain) loss on divestitures	$ 14
Building Efficiency Systems and Service North America [Member] | Building Efficiency
Segment Information [Line Items]
Restructuring and impairment costs		2	3	12
Building Efficiency Asia | Building Efficiency
Segment Information [Line Items]
Restructuring and impairment costs		26	11	4
Equity income in segment income		100		21
Building Efficiency Other | Building Efficiency
Segment Information [Line Items]
Restructuring and impairment costs		16	13	119
Equity income in segment income		15	$ 14	$ 7
Buildings Tyco [Member] | Buildings [Member]
Segment Information [Line Items]
Restructuring and impairment costs		8
Equity income in segment income		$ 1

Segment Information Geographic

Segment Information Geographic Segments (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Geographic Area Information [Line Items]
Net Sales	$ 20,837	$ 17,100	$ 16,717
Long-Lived Assets (Year-end)	5,632	3,683	3,847
United States
Geographic Area Information [Line Items]
Net Sales	9,633	8,982	8,203
Long-Lived Assets (Year-end)	2,880	2,056	2,422
Germany
Geographic Area Information [Line Items]
Net Sales	1,430	911	965
Long-Lived Assets (Year-end)	287	304	377
JAPAN
Geographic Area Information [Line Items]
Net Sales	1,805	315	353
Long-Lived Assets (Year-end)	188	8	3
Mexico
Geographic Area Information [Line Items]
Net Sales	639	635	663
Long-Lived Assets (Year-end)	457	368	304
Other European Countries
Geographic Area Information [Line Items]
Net Sales	2,108	2,270	2,592
Long-Lived Assets (Year-end)	551	280	96
Other Foreign
Geographic Area Information [Line Items]
Net Sales	5,222	3,987	3,941
Long-Lived Assets (Year-end)	$ 1,269	$ 667	$ 645

Nonconsolidated Partially-Ow136

Nonconsolidated Partially-Owned Affiliates (Detail)	12 Months Ended
	Sep. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]
Percentage of results of operations	100.00%

Nonconsolidated Partially-Ow137

Nonconsolidated Partially-Owned Affiliates Summarized Balance Sheet Data (Detail) - Equity Method Investments - USD ($) $ in Millions	Sep. 30, 2016	Sep. 30, 2015
Equity Method Investments, Summarized Balance Sheet Information [Line Items]
Current Assets	$ 9,117	$ 7,083
Noncurrent assets	4,164	3,294
Total assets	13,281	10,377
Current liabilities	7,689	6,268
Noncurrent liabilities	754	604
Noncontrolling interests	78	20
Shareholders' equity	4,760	3,485
Total liabilities and shareholders' equity	$ 13,281	$ 10,377

Nonconsolidated Partially-Ow138

Nonconsolidated Partially-Owned Affiliates Summarized Income Statement Data (Detail) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Equity Method Investments, Summarized Income Statement Information [Line Items]
Income attributable to noncontrolling interests	$ 26	$ 10
Net income attributable to the entity	1,543	880
Equity Method Investments
Equity Method Investments, Summarized Income Statement Information [Line Items]
Net sales	21,456	12,922	$ 10,820
Gross profit	3,119	1,911	1,638
Net income	$ 1,569	$ 890	790
Income attributable to noncontrolling interests			3
Net income attributable to the entity			$ 787

Guarantees (Details)

Guarantees (Details) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Guarantor Obligations [Line Items]
Post sale contingent tax indemnification liabilities	$ 290,000,000
Maximum length, in years, of a product warranty for it to be recorded in other current liabilities	1 year
Minimum length, in years, of a product warranty for it to be recorded in other noncurrent liabilities	1 year
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 288,000,000	$ 299,000,000
Accruals for warranties issued during the period	314,000,000	274,000,000
Accruals from acquisitions and divestitures	83,000,000	0
Accruals related to pre-existing warranties (including changes in estimates)	(17,000,000)	(5,000,000)
Settlements made (in cash or in kind) during the period	(297,000,000)	(275,000,000)
Currency translation	3,000,000	(5,000,000)
Balance at end of period	374,000,000	$ 288,000,000
Business Divestitures, Not Specific
Guarantor Obligations [Line Items]
Post sale contingent tax indemnification liabilities	$ 255,000,000

TYCO INTERNATIONAL FINANCE S140

TYCO INTERNATIONAL FINANCE S.A. (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Condensed Income Statements, Captions [Line Items]
Net sales	$ 20,837	$ 17,100	$ 16,717
Cost of Goods and Services Sold	15,183	12,569	12,405
Gross Profit	5,654	4,531	4,312
Selling, General and Administrative Expense	(4,190)	(3,191)	(2,994)
Restructuring and impairment costs	(288)	(215)	(165)
Net Financing Charges	(289)	(274)	(226)
Equity income	174	80	110
Intercompany interest and fees	0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	1,061	931	1,037
Income tax provision	197	71	93
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	864	860	944
Income (loss) from discontinued operations, net of tax (Note 4)	(1,516)	819	399
Net income (loss)	(652)	1,679	1,343
Income from continuing operations attributable to noncontrolling interests	132	46	38
Income from discontinued operations attributable to noncontrolling interests	84	70	90
Net Income (Loss) Attributable to Parent	(868)	$ 1,563	$ 1,215
Consolidation, Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	0
Cost of Goods and Services Sold	0
Gross Profit	0
Selling, General and Administrative Expense	0
Restructuring and impairment costs	0
Net Financing Charges	0
Equity income	2,734
Intercompany interest and fees	0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	2,734
Income tax provision	0
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	2,734
Income (loss) from discontinued operations, net of tax (Note 4)	0
Net income (loss)	2,734
Income from continuing operations attributable to noncontrolling interests	0
Income from discontinued operations attributable to noncontrolling interests	0
Net Income (Loss) Attributable to Parent	2,734
Tyco Fire & Security Finance SCA
Condensed Income Statements, Captions [Line Items]
Net sales	0
Cost of Goods and Services Sold	0
Gross Profit	0
Selling, General and Administrative Expense	(2)
Restructuring and impairment costs	0
Net Financing Charges	0
Equity income	(1,527)
Intercompany interest and fees	0
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(1,529)
Income tax provision	0
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(1,529)
Income (loss) from discontinued operations, net of tax (Note 4)	0
Net income (loss)	(1,529)
Income from continuing operations attributable to noncontrolling interests	0
Income from discontinued operations attributable to noncontrolling interests	0
Net Income (Loss) Attributable to Parent	(1,529)
Johnson Controls International plc
Condensed Income Statements, Captions [Line Items]
Net sales	0
Cost of Goods and Services Sold	0
Gross Profit	0
Selling, General and Administrative Expense	(2)
Restructuring and impairment costs	0
Net Financing Charges	0
Equity income	(894)
Intercompany interest and fees	28
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(868)
Income tax provision	0
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(868)
Income (loss) from discontinued operations, net of tax (Note 4)	0
Net income (loss)	(868)
Income from continuing operations attributable to noncontrolling interests	0
Income from discontinued operations attributable to noncontrolling interests	0
Net Income (Loss) Attributable to Parent	(868)
Other Subsidiaries
Condensed Income Statements, Captions [Line Items]
Net sales	20,837
Cost of Goods and Services Sold	15,183
Gross Profit	5,654
Selling, General and Administrative Expense	(4,185)
Restructuring and impairment costs	(288)
Net Financing Charges	(283)
Equity income	174
Intercompany interest and fees	(35)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	1,037
Income tax provision	197
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	840
Income (loss) from discontinued operations, net of tax (Note 4)	(1,516)
Net income (loss)	(676)
Income from continuing operations attributable to noncontrolling interests	132
Income from discontinued operations attributable to noncontrolling interests	84
Net Income (Loss) Attributable to Parent	(892)
Tyco International Finance S.A.
Condensed Income Statements, Captions [Line Items]
Net sales	0
Cost of Goods and Services Sold	0
Gross Profit	0
Selling, General and Administrative Expense	(1)
Restructuring and impairment costs	0
Net Financing Charges	(6)
Equity income	(313)
Intercompany interest and fees	7
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(313)
Income tax provision	0
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(313)
Income (loss) from discontinued operations, net of tax (Note 4)	0
Net income (loss)	(313)
Income from continuing operations attributable to noncontrolling interests	0
Income from discontinued operations attributable to noncontrolling interests	0
Net Income (Loss) Attributable to Parent	$ (313)

TYCO INTERNATIONAL FINANCE S141

TYCO INTERNATIONAL FINANCE S.A. Condensed Statement of Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Condensed Statement of Income Captions [Line Items]
Net income (loss)	$ (652)	$ 1,679	$ 1,343
Foreign currency translation adjustments	(94)	(825)	(642)
Realized and unrealized gains (losses) on derivatives	9	(10)	(3)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	1	0	7
Pension and postretirement plans	(1)	(10)	(5)
Other Comprehensive Loss	(87)	(845)	(657)
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(739)	834	686
Comprehensive income attributable to noncontrolling interests	225	91	126
Comprehensive income (loss) attributable to Johnson Controls	(964)	$ 743	$ 560
Consolidation, Eliminations [Member]
Condensed Statement of Income Captions [Line Items]
Net income (loss)	2,734
Foreign currency translation adjustments	105
Realized and unrealized gains (losses) on derivatives	(11)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	1
Pension and postretirement plans	1
Other Comprehensive Loss	96
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	2,830
Comprehensive income attributable to noncontrolling interests	0
Comprehensive income (loss) attributable to Johnson Controls	2,830
Johnson Controls International plc
Condensed Statement of Income Captions [Line Items]
Net income (loss)	(868)
Foreign currency translation adjustments	(105)
Realized and unrealized gains (losses) on derivatives	11
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	1
Pension and postretirement plans	(1)
Other Comprehensive Loss	(96)
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(964)
Comprehensive income attributable to noncontrolling interests	0
Comprehensive income (loss) attributable to Johnson Controls	(964)
Tyco Fire & Security Finance SCA
Condensed Statement of Income Captions [Line Items]
Net income (loss)	(1,529)
Foreign currency translation adjustments	0
Realized and unrealized gains (losses) on derivatives	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	0
Pension and postretirement plans	0
Other Comprehensive Loss	0
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(1,529)
Comprehensive income attributable to noncontrolling interests	0
Comprehensive income (loss) attributable to Johnson Controls	(1,529)
Tyco International Finance S.A.
Condensed Statement of Income Captions [Line Items]
Net income (loss)	(313)
Foreign currency translation adjustments	0
Realized and unrealized gains (losses) on derivatives	0
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	0
Pension and postretirement plans	0
Other Comprehensive Loss	0
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(313)
Comprehensive income attributable to noncontrolling interests	0
Comprehensive income (loss) attributable to Johnson Controls	(313)
Other Subsidiaries
Condensed Statement of Income Captions [Line Items]
Net income (loss)	(676)
Foreign currency translation adjustments	(94)
Realized and unrealized gains (losses) on derivatives	9
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(1)
Pension and postretirement plans	(1)
Other Comprehensive Loss	(87)
Comprehensive (Income) Loss, Net of Tax, Including Portion Attributable to Noncontrolling Interest	(763)
Comprehensive income attributable to noncontrolling interests	225
Comprehensive income (loss) attributable to Johnson Controls	$ (988)

TYCO INTERNATIONAL FINANCE S142

TYCO INTERNATIONAL FINANCE S.A. Condensed Balance Sheet (Details) - USD ($)	Sep. 30, 2016	Sep. 02, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	$ 579,000,000		$ 553,000,000	$ 364,000,000	$ 985,000,000
Accounts Receivable, Net, Current	6,394,000,000		3,617,000,000
Inventories	2,888,000,000		1,665,000,000
Intercompany receivables	0
Assets held for sale	5,812,000,000		3,759,000,000
Other current assets	1,436,000,000		875,000,000
Assets, Current	17,109,000,000		10,469,000,000
Property, plant and equipment - net	5,632,000,000		3,683,000,000	3,847,000,000
Goodwill	21,024,000,000		4,460,000,000	4,571,000,000
Other intangible assets - net	7,540,000,000		1,387,000,000
Investments in partially-owned affiliates	990,000,000		497,000,000
Investments in affiliates	0
Intercompany loans receivable	0
Noncurrent assets held for sale	7,374,000,000		6,854,000,000
Other noncurrent assets	3,510,000,000		2,240,000,000
Total assets	63,179,000,000		29,590,000,000	32,777,000,000
Short-term Debt	1,078,000,000		35,000,000
Current portion of long-term debt	628,000,000		806,000,000
Accounts payable	4,000,000,000		2,580,000,000
Accrued compensation and benefits	1,333,000,000		698,000,000
Disposal Group, Including Discontinued Operation, Liabilities	4,276,000,000		3,998,000,000
intercompany payable	0
Other current liabilities	5,016,000,000		2,329,000,000
Liabilities, Current	16,331,000,000		10,446,000,000
Long-term debt	11,053,000,000		5,367,000,000
Pension and postretirement benefits	1,550,000,000		649,000,000
Intercompany loans payable	0
Noncurrent liabilities held for sale	3,888,000,000		828,000,000
Other noncurrent liabilities	5,033,000,000		1,590,000,000
Liabilities, Noncurrent	21,524,000,000		8,434,000,000
Redeemable noncontrolling interests	234,000,000		212,000,000
Common Stock, Value, Issued	9,000,000	$ 0	7,000,000
Treasury Stock, Value	(20,000,000)		(3,152,000,000)
Other shareholders' equity	24,129,000,000
Stockholders' Equity Attributable to Parent	24,118,000,000		10,335,000,000	$ 11,270,000,000	$ 12,273,000,000
Noncontrolling interests	972,000,000		163,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	25,090,000,000		10,498,000,000
Liabilities and Equity	63,179,000,000		29,590,000,000
Consolidation, Eliminations [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	0		0
Accounts Receivable, Net, Current	0
Inventories	0
Intercompany receivables	(6,206,000,000)
Assets held for sale	0
Other current assets	0
Assets, Current	(6,206,000,000)
Property, plant and equipment - net	0
Goodwill	0
Other intangible assets - net	0
Investments in partially-owned affiliates	0
Investments in affiliates	(71,771,000,000)
Intercompany loans receivable	(47,647,000,000)
Noncurrent assets held for sale	0
Other noncurrent assets	0
Total assets	(125,624,000,000)
Short-term Debt	0
Current portion of long-term debt	0
Accounts payable	0
Accrued compensation and benefits	0
Disposal Group, Including Discontinued Operation, Liabilities	0
intercompany payable	(6,206,000,000)
Other current liabilities	0
Liabilities, Current	(6,206,000,000)
Long-term debt	0
Pension and postretirement benefits	0
Intercompany loans payable	(47,647,000,000)
Noncurrent liabilities held for sale	0
Other noncurrent liabilities	0
Liabilities, Noncurrent	(47,647,000,000)
Redeemable noncontrolling interests	0
Common Stock, Value, Issued	0
Treasury Stock, Value	0
Other shareholders' equity	(71,771,000,000)
Stockholders' Equity Attributable to Parent	(71,771,000,000)
Noncontrolling interests	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(71,771,000,000)
Liabilities and Equity	(125,624,000,000)
Other Subsidiaries
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	324,000,000		553,000,000
Accounts Receivable, Net, Current	6,394,000,000
Inventories	2,888,000,000
Intercompany receivables	6,188,000,000
Assets held for sale	5,812,000,000
Other current assets	1,429,000,000
Assets, Current	23,035,000,000
Property, plant and equipment - net	5,632,000,000
Goodwill	20,750,000,000
Other intangible assets - net	7,540,000,000
Investments in partially-owned affiliates	990,000,000
Investments in affiliates	0
Intercompany loans receivable	15,631,000,000
Noncurrent assets held for sale	7,374,000,000
Other noncurrent assets	3,510,000,000
Total assets	84,462,000,000
Short-term Debt	1,078,000,000
Current portion of long-term debt	628,000,000
Accounts payable	3,999,000,000
Accrued compensation and benefits	1,333,000,000
Disposal Group, Including Discontinued Operation, Liabilities	4,276,000,000
intercompany payable	18,000,000
Other current liabilities	4,979,000,000
Liabilities, Current	16,311,000,000
Long-term debt	8,640,000,000
Pension and postretirement benefits	1,550,000,000
Intercompany loans payable	13,336,000,000
Noncurrent liabilities held for sale	3,888,000,000
Other noncurrent liabilities	5,011,000,000
Liabilities, Noncurrent	32,425,000,000
Redeemable noncontrolling interests	234,000,000
Common Stock, Value, Issued	0
Treasury Stock, Value	0
Other shareholders' equity	34,520,000,000
Stockholders' Equity Attributable to Parent	34,520,000,000
Noncontrolling interests	972,000,000
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	35,492,000,000
Liabilities and Equity	84,462,000,000
Johnson Controls International plc
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	11,000,000		0
Accounts Receivable, Net, Current	0
Inventories	0
Intercompany receivables	16,000,000
Assets held for sale	0
Other current assets	6,000,000
Assets, Current	33,000,000
Property, plant and equipment - net	0
Goodwill	0
Other intangible assets - net	0
Investments in partially-owned affiliates	0
Investments in affiliates	12,460,000,000
Intercompany loans receivable	18,680,000,000
Noncurrent assets held for sale	0
Other noncurrent assets	0
Total assets	31,173,000,000
Short-term Debt	0
Current portion of long-term debt	0
Accounts payable	1,000,000
Accrued compensation and benefits	0
Disposal Group, Including Discontinued Operation, Liabilities	0
intercompany payable	3,873,000,000
Other current liabilities	3,000,000
Liabilities, Current	3,877,000,000
Long-term debt	0
Pension and postretirement benefits	0
Intercompany loans payable	3,178,000,000
Noncurrent liabilities held for sale	0
Other noncurrent liabilities	0
Liabilities, Noncurrent	3,178,000,000
Redeemable noncontrolling interests	0
Common Stock, Value, Issued	9,000,000
Treasury Stock, Value	(20,000,000)
Other shareholders' equity	24,129,000,000
Stockholders' Equity Attributable to Parent	24,118,000,000
Noncontrolling interests	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	24,118,000,000
Liabilities and Equity	31,173,000,000
Tyco Fire & Security Finance SCA
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	0		0
Accounts Receivable, Net, Current	0
Inventories	0
Intercompany receivables	0
Assets held for sale	0
Other current assets	0
Assets, Current	0
Property, plant and equipment - net	0
Goodwill	0
Other intangible assets - net	0
Investments in partially-owned affiliates	0
Investments in affiliates	31,405,000,000
Intercompany loans receivable	0
Noncurrent assets held for sale	0
Other noncurrent assets	0
Total assets	31,405,000,000
Short-term Debt	0
Current portion of long-term debt	0
Accounts payable	0
Accrued compensation and benefits	0
Disposal Group, Including Discontinued Operation, Liabilities	0
intercompany payable	0
Other current liabilities	2,000,000
Liabilities, Current	2,000,000
Long-term debt	0
Pension and postretirement benefits	0
Intercompany loans payable	18,680,000,000
Noncurrent liabilities held for sale	0
Other noncurrent liabilities	0
Liabilities, Noncurrent	18,680,000,000
Redeemable noncontrolling interests	0
Common Stock, Value, Issued	0
Treasury Stock, Value	0
Other shareholders' equity	12,723,000,000
Stockholders' Equity Attributable to Parent	12,723,000,000
Noncontrolling interests	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	12,723,000,000
Liabilities and Equity	31,405,000,000
Tyco International Finance S.A.
Condensed Balance Sheet Statements, Captions [Line Items]
Cash and cash equivalents	244,000,000		$ 0
Accounts Receivable, Net, Current	0
Inventories	0
Intercompany receivables	2,000,000
Assets held for sale	0
Other current assets	1,000,000
Assets, Current	247,000,000
Property, plant and equipment - net	0
Goodwill	274,000,000
Other intangible assets - net	0
Investments in partially-owned affiliates	0
Investments in affiliates	27,906,000,000
Intercompany loans receivable	13,336,000,000
Noncurrent assets held for sale	0
Other noncurrent assets	0
Total assets	41,763,000,000
Short-term Debt	0
Current portion of long-term debt	0
Accounts payable	0
Accrued compensation and benefits	0
Disposal Group, Including Discontinued Operation, Liabilities	0
intercompany payable	2,315,000,000
Other current liabilities	32,000,000
Liabilities, Current	2,347,000,000
Long-term debt	2,413,000,000
Pension and postretirement benefits	0
Intercompany loans payable	12,453,000,000
Noncurrent liabilities held for sale	0
Other noncurrent liabilities	22,000,000
Liabilities, Noncurrent	14,888,000,000
Redeemable noncontrolling interests	0
Common Stock, Value, Issued	0
Treasury Stock, Value	0
Other shareholders' equity	24,528,000,000
Stockholders' Equity Attributable to Parent	24,528,000,000
Noncontrolling interests	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	24,528,000,000
Liabilities and Equity	$ 41,763,000,000

TYCO INTERNATIONAL FINANCE S143

TYCO INTERNATIONAL FINANCE S.A. Condensed Statement of Cash Flow (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	$ 1,895	$ 1,600	$ 2,395
Payments to Acquire Productive Assets	(1,249)	(1,135)	(1,199)
Sale of property, plant and equipment	32	37	79
Payments to acquire businesses, net of cash acquired	353	(22)	(1,733)
Business divestitures	32	1,646	225
Changes in long-term investments	(48)	(44)	19
Net change in intercompany loans	0
Other	(7)	(12)	16
Net Cash Provided by (Used in) Investing Activities	(887)	470	(2,593)
Increase (decrease) in short-term debt - net	556	(68)	73
Increase in long-term debt	1,501	299	2,001
Repayments of Long-term Debt	(1,299)	(191)	(833)
Payments of Financing Costs	(45)	0	0
Payments for Repurchase of Common Stock	(501)	(1,362)	(1,249)
Payments of Dividends	(915)	(657)	(568)
Proceeds from the exercise of stock options	70	275	186
Net intercompany loan borrowings (repayments)	0
Payments to Acquire Additional Interest in Subsidiaries	(2)	(38)	(5)
Payments of Ordinary Dividends, Noncontrolling Interest	(306)	(68)	(55)
Other	8	(11)	38
Net Cash Provided by (Used in) Financing Activities	(933)	(1,821)	(412)
Effect of exchange rate changes on cash and cash equivalents	12	(81)	(20)
Change in Cash Held For Sale	(61)
Increase (decrease) in cash and cash equivalents	26	189	(621)
Cash and cash equivalents	579	553	$ 364	$ 985
Consolidation, Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	0
Payments to Acquire Productive Assets	0
Sale of property, plant and equipment	0
Payments to acquire businesses, net of cash acquired	0
Business divestitures	0
Changes in long-term investments	0
Net change in intercompany loans	(10)
Other	0
Net Cash Provided by (Used in) Investing Activities	(10)
Increase (decrease) in short-term debt - net	0
Increase in long-term debt	0
Repayments of Long-term Debt	0
Payments of Financing Costs	0
Payments for Repurchase of Common Stock	0
Payments of Dividends	0
Proceeds from the exercise of stock options	0
Net intercompany loan borrowings (repayments)	10
Payments to Acquire Additional Interest in Subsidiaries	0
Payments of Ordinary Dividends, Noncontrolling Interest	0
Other	0
Net Cash Provided by (Used in) Financing Activities	10
Effect of exchange rate changes on cash and cash equivalents	0
Change in Cash Held For Sale	0
Increase (decrease) in cash and cash equivalents	0
Cash and cash equivalents	0	0
Other Subsidiaries
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	1,245
Payments to Acquire Productive Assets	(1,249)
Sale of property, plant and equipment	32
Payments to acquire businesses, net of cash acquired	353
Business divestitures	32
Changes in long-term investments	(105)
Net change in intercompany loans	0
Other	(7)
Net Cash Provided by (Used in) Investing Activities	(944)
Increase (decrease) in short-term debt - net	1,018
Increase in long-term debt	1,501
Repayments of Long-term Debt	(1,299)
Payments of Financing Costs	(45)
Payments for Repurchase of Common Stock	(501)
Payments of Dividends	(915)
Proceeds from the exercise of stock options	67
Net intercompany loan borrowings (repayments)	(10)
Payments to Acquire Additional Interest in Subsidiaries	(2)
Payments of Ordinary Dividends, Noncontrolling Interest	(306)
Other	11
Net Cash Provided by (Used in) Financing Activities	(481)
Effect of exchange rate changes on cash and cash equivalents	12
Change in Cash Held For Sale	(61)
Increase (decrease) in cash and cash equivalents	(229)
Cash and cash equivalents	324	553
Johnson Controls International plc
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	11
Payments to Acquire Productive Assets	0
Sale of property, plant and equipment	0
Payments to acquire businesses, net of cash acquired	0
Business divestitures	0
Changes in long-term investments	0
Net change in intercompany loans	0
Other	0
Net Cash Provided by (Used in) Investing Activities	0
Increase (decrease) in short-term debt - net	0
Increase in long-term debt	0
Repayments of Long-term Debt	0
Payments of Financing Costs	0
Payments for Repurchase of Common Stock	0
Payments of Dividends	0
Proceeds from the exercise of stock options	3
Net intercompany loan borrowings (repayments)	0
Payments to Acquire Additional Interest in Subsidiaries	0
Payments of Ordinary Dividends, Noncontrolling Interest	0
Other	(3)
Net Cash Provided by (Used in) Financing Activities	0
Effect of exchange rate changes on cash and cash equivalents	0
Change in Cash Held For Sale	0
Increase (decrease) in cash and cash equivalents	11
Cash and cash equivalents	11	0
Tyco Fire & Security Finance SCA
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	0
Payments to Acquire Productive Assets	0
Sale of property, plant and equipment	0
Payments to acquire businesses, net of cash acquired	0
Business divestitures	0
Changes in long-term investments	0
Net change in intercompany loans	0
Other	0
Net Cash Provided by (Used in) Investing Activities	0
Increase (decrease) in short-term debt - net	0
Increase in long-term debt	0
Repayments of Long-term Debt	0
Payments of Financing Costs	0
Payments for Repurchase of Common Stock	0
Payments of Dividends	0
Proceeds from the exercise of stock options	0
Net intercompany loan borrowings (repayments)	0
Payments to Acquire Additional Interest in Subsidiaries	0
Payments of Ordinary Dividends, Noncontrolling Interest	0
Other	0
Net Cash Provided by (Used in) Financing Activities	0
Effect of exchange rate changes on cash and cash equivalents	0
Change in Cash Held For Sale	0
Increase (decrease) in cash and cash equivalents	0
Cash and cash equivalents	0	0
Tyco International Finance S.A.
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Provided by Operating Activities	639
Payments to Acquire Productive Assets	0
Sale of property, plant and equipment	0
Payments to acquire businesses, net of cash acquired	0
Business divestitures	0
Changes in long-term investments	57
Net change in intercompany loans	10
Other	0
Net Cash Provided by (Used in) Investing Activities	67
Increase (decrease) in short-term debt - net	(462)
Increase in long-term debt	0
Repayments of Long-term Debt	0
Payments of Financing Costs	0
Payments for Repurchase of Common Stock	0
Payments of Dividends	0
Proceeds from the exercise of stock options	0
Net intercompany loan borrowings (repayments)	0
Payments to Acquire Additional Interest in Subsidiaries	0
Payments of Ordinary Dividends, Noncontrolling Interest	0
Other	0
Net Cash Provided by (Used in) Financing Activities	(462)
Effect of exchange rate changes on cash and cash equivalents	0
Change in Cash Held For Sale	0
Increase (decrease) in cash and cash equivalents	244
Cash and cash equivalents	$ 244	$ 0

Commitments and Contingencie144

Commitments and Contingencies (Detail) - USD ($)	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Loss Contingencies [Line Items]
Insurable liabilities	$ 422,000,000	$ 138,000,000
Reserves for environmental liabilities	51,000,000	20,000,000
Accrued Environmental Loss Contingencies, Current	11,000,000
Accrued Environmental Loss Contingencies, Noncurrent	40,000,000
Conditional asset retirement obligations	74,000,000	59,000,000
Estimated asbestos related net liability on a discounted basis	148,000,000	136,000,000
Liability for Asbestos and Environmental Claims, Gross	548,000,000
Restricted Cash and Investments	400,000,000	0
Restricted Cash and Cash Equivalents	88,000,000	0
Insurance Recoveries	120,000,000
Asbestos Issue [Member]
Loss Contingencies [Line Items]
Restricted Cash and Cash Equivalents	16,000,000
Restricted Investments	264,000,000
Other current liabilities
Loss Contingencies [Line Items]
Insurable liabilities	60,000,000	19,000,000
Liability for Asbestos and Environmental Claims, Gross	35,000,000
Accrued Compensation and Benefits [Member]
Loss Contingencies [Line Items]
Insurable liabilities	28,000,000	12,000,000
Other noncurrent Liabilities
Loss Contingencies [Line Items]
Insurable liabilities	334,000,000	$ 107,000,000
Liability for Asbestos and Environmental Claims, Gross	513,000,000
Other current assets
Loss Contingencies [Line Items]
Restricted Cash and Investments	41,000,000
Other noncurrent assets
Loss Contingencies [Line Items]
Restricted Cash and Investments	$ 359,000,000

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Related Party Transactions [Abstract]
Receivable from related parties	$ 66	$ 50
Net sales to related parties	879	854	$ 836
Purchases from related parties	134	63	$ 60
Payable to related parties	$ 11	$ 14

Valuation and Qualifying Acc146

Valuation and Qualifying Accounts Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Acquisition of businesses	$ 2,400
Accounts Receivable - Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	70	$ 64	$ 56
Provision charged to costs and expenses	45	27	40
Reserve adjustments	(8)	(5)	(8)
Accounts charged off	(25)	(16)	(19)
Acquisition of businesses	91	1	1
Currency translation	0	(1)	(1)
Transfers to held for sale	0	0	5
Balance at end of period	173	70	64
Deferred Tax Assets - Valuation Allowance
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	1,151	1,111	1,046
Acquisition of businesses	2,459	0	0
Allowance provision for new operating and other loss carryforwards	121	23	121
Allowance provision benefits	(331)	17	(56)
Balance at end of period	$ 3,400	$ 1,151	$ 1,111