Johnson Controls 10-Q 1 Feb 16 2016 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information	3 Months Ended
	Dec. 31, 2015shares
Document and Entity Information [Abstract]
Entity Registrant Name	JOHNSON CONTROLS INC
Entity Central Index Key	53,669
Current Fiscal Year End Date	--09-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Dec. 31, 2015
Document Fiscal Year Focus	2,016
Document Fiscal Period Focus	Q1
Trading Symbol	JCI
Amendment Flag	false
Entity Common Stock, Shares Outstanding	648,235,276

Consolidated Statements of Fina

Consolidated Statements of Financial Position - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 414	$ 597	$ 168
Accounts receivable - net	5,745	5,751	5,360
Inventories	2,769	2,377	2,439
Assets held for sale	0	55	2,112
Other current assets	1,993	1,689	1,783
Current assets	10,921	10,469	11,862
Property, plant and equipment - net	6,256	5,870	6,114
Goodwill	6,918	6,824	7,010
Other intangible assets - net	1,583	1,516	1,600
Investments in partially-owned affiliates	2,607	2,143	1,117
Noncurrent assets held for sale	0	0	684
Other noncurrent assets	2,734	2,773	3,219
Total assets	31,019	29,595	31,606
Liabilities and Equity
Short-term debt	611	52	1,075
Current portion of long-term debt	1,242	813	139
Accounts payable	4,936	5,174	4,584
Accrued compensation and benefits	996	1,090	864
Liabilities held for sale	0	42	1,706
Other current liabilities	3,516	3,275	2,945
Current liabilities	11,301	10,446	11,313
Long-term debt	5,301	5,745	6,322
Pension and postretirement benefits	782	767	833
Other noncurrent liabilities	1,982	1,886	1,843
Long-term liabilities	8,065	8,398	8,998
Redeemable noncontrolling interests	216	212	209
Common stock, $1.00 par value	717	717	711
Capital in excess of par value	3,070	3,030	2,809
Retained earnings	11,100	10,838	10,291
Treasury stock, at cost	(3,163)	(3,152)	(2,387)
Accumulated other comprehensive loss	(1,218)	(1,057)	(601)
Shareholders' equity attributable to Johnson Controls, Inc.	10,506	10,376	10,823
Noncontrolling interests	931	163	263
Total equity	11,437	10,539	11,086
Total liabilities and equity	$ 31,019	$ 29,595	$ 31,606

Consolidated Statements of Fin3

Consolidated Statements of Financial Position (Parenthetical) - $ / shares	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Common stock, par value	$ 1	$ 1	$ 1

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Millions		3 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Net sales
Products and systems	[1]	$ 8,053	$ 8,723
Services	[1]	876	901
Net sales		8,929	9,624
Cost of sales
Products and systems	[1]	6,697	7,406
Services	[1]	599	609
Cost of sales		7,296	8,015
Gross profit		1,633	1,609
Selling, general and administrative expenses		(1,082)	(1,005)
Net financing charges		(68)	(71)
Equity income		136	102
Income from continuing operations before income taxes		619	635
Income tax provision		129	118
Net income from continuing operations		490	517
Income from discontinued operations, net of tax (Note 4)		0	29
Net income		490	546
Income from continuing operations attributable to noncontrolling interests		40	36
Income from discontinued operations attributable to noncontrolling interests		0	3
Net income attributable to Johnson Controls, Inc.		450	507
Amounts attributable to Johnson Controls, Inc. common shareholders
Income from continuing operations		450	481
Income from discontinued operations		$ 0	$ 26
Earnings (loss) per share
Basic earnings per share from continuing operations		$ 0.69	$ 0.73
Basic earnings per share from discontinued operations		0	0.04
Basic earnings per share		0.69	0.77
Diluted earnings per share from continuing operations		0.69	0.72
Diluted earnings per share from discontinued operations		0	0.04
Diluted earnings per share		$ 0.69	$ 0.76
[1]	Products and systems consist of Automotive Experience and Power Solutions products and systems and Building Efficiency installed systems. Services are Building Efficiency technical services.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 490	$ 546
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(177)	(351)
Realized and unrealized losses on derivatives	(3)	(10)
Pension and postretirement plans	0	(3)
Other comprehensive loss	(180)	(364)
Total comprehensive income	310	182
Comprehensive income attributable to noncontrolling interests	21	39
Comprehensive income attributable to Johnson Controls, Inc.	$ 289	$ 143

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net income attributable to Johnson Controls, Inc.	$ 450	$ 507
Income from continuing operations attributable to noncontrolling interests	40	36
Income from discontinued operations attributable to noncontrolling interests	0	3
Net income	490	546
Adjustments to reconcile net income to cash used by operating activities:
Depreciation and amortization	226	224
Pension and postretirement benefit income	(17)	(14)
Pension and postretirement contributions	(19)	(24)
Equity in earnings of partially-owned affiliates, net of dividends received	(110)	(92)
Deferred income taxes	(14)	96
Equity-based compensation	28	21
Other	1	(5)
Changes in assets and liabilities, excluding acquisitions and divestitures:
Receivables	199	410
Inventories	(70)	(20)
Other assets	(108)	(129)
Restructuring reserves	(74)	(77)
Accouns payable and accrued liabilities	(394)	(702)
Accrued income taxes	(151)	(394)
Cash used by operating activities	(13)	(160)
Investing Activities
Capital expenditures	(282)	(262)
Sale of property, plant and equipment	9	14
Acquisition of businesses, net of cash acquired	(133)	(13)
Business divestitures, net of cash divested	18	0
Changes in long-term investments	0	2
Other	4	5
Cash used by investing activities	(384)	(254)
Financing Activities
Increase in short-term debt - net	521	898
Repayment of long-term debt	(7)	(9)
Stock repurchases	0	(600)
Payment of cash dividends	(168)	(146)
Proceeds from the exercise of stock options	16	105
Dividends paid to noncontrolling interests	154	11
Other	6	(8)
Cash provided by financing activities	214	229
Effect of exchange rate changes on cash and cash equivalents	0	(57)
Cash held for sale	0	1
Decrease in cash and cash equivalents	(183)	(241)
Cash and cash equivalents at beginning of period	597	409
Cash and cash equivalents at end of period	$ 414	$ 168

Financial Statements

Financial Statements	3 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Financial Statements	Financial Statements In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (which include normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for the periods presented. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) have been omitted pursuant to the rules and regulations of the United States Securities and Exchange Commission (SEC). These consolidated financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Johnson Controls, Inc. (the "Company") Annual Report on Form 10-K for the year ended September 30, 2015 . The results of operations for the three month period ended December 31, 2015 are not necessarily indicative of results for the Company’s 2016 fiscal year because of seasonal and other factors. The consolidated financial statements include the accounts of Johnson Controls, Inc. and its domestic and non-U.S. subsidiaries that are consolidated in conformity with U.S. GAAP. All significant intercompany transactions have been eliminated. 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) Accounting Standards Codification (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 rights. 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 December 31, 2015 , September 30, 2015 and December 31, 2014 , 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 funds the entities’ short term liquidity needs through revolving credit facilities and has the power to direct the activities that are considered most significant to the entities through its key customer supply relationships. 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 three month periods ended December 31, 2015 and 2014 was not material. The VIE is named as a co-obligor under a third party debt agreement in the amount of $158 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 $60 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): December 31, 2015 September 30, 2015 December 31, 2014 Current assets $ 242 $ 281 $ 184 Noncurrent assets 127 128 136 Total assets $ 369 $ 409 $ 320 Current liabilities $ 197 $ 232 $ 155 Noncurrent liabilities 33 34 36 Total liabilities $ 230 $ 266 $ 191 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 fisca1 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 $62 million , $62 million and $60 million at December 31, 2015 , September 30, 2015 and December 31, 2014 , 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 unconsolidated VIEs for the presented reporting periods. Retrospective Changes Certain amounts for the three months ended December 31, 2014 have been revised to conform to the current year’s presentation. At March 31, 2015, the Company determined that its Building Efficiency Global Workplace Solutions (GWS) segment 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. Effective October 1, 2015, the Company reorganized the reportable segments within its Building Efficiency business to align with its new management reporting structure and business activities. Prior to this reorganization, Building Efficiency was comprised of three reportable segments for financial reporting purposes: North America Systems and Service, Asia and Other. As a result of this change, Building Efficiency is now comprised of four reportable segments for financial reporting purposes: Systems and Service North America, Products North America, Asia and Rest of World. Historical information has been revised to reflect the new Building Efficiency reportable segments. Refer to Note 7, “Goodwill and Other Intangible Assets,” and Note 17, “Segment Information,” of the notes to consolidated financial statements for further information. In November 2015, the FASB issued Accounting Standards Update (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. The impact of all adjustments made to the consolidated statements of financial position presented is summarized in the following table (in millions): December 31, 2015 Previous Method As Reported Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,607 $ 1,993 $ (614 ) Other noncurrent assets 2,195 2,734 539 Other current liabilities 3,562 3,516 (46 ) Other noncurrent liabilities 2,011 1,982 (29 ) September 30, 2015 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,313 $ 1,689 $ (624 ) Other noncurrent assets 2,227 2,773 546 Other current liabilities 3,324 3,275 (49 ) Other noncurrent liabilities 1,915 1,886 (29 ) December 31, 2014 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,302 $ 1,783 $ (519 ) Other noncurrent assets 2,801 3,219 418 Other current liabilities 3,019 2,945 (74 ) Other noncurrent liabilities 1,870 1,843 (27 )

New Accounting Standards

New Accounting Standards	3 Months Ended
	Dec. 31, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Standards	New Accounting Standards 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 retrospectively 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 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 will be effective retrospectively for the Company for the quarter ending December 31, 2016, with early adoption permitted. The adoption of this guidance is not expected to have an impact on the Company's consolidated financial statements but will impact pension asset disclosures. In April 2015, the FASB issued 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. ASU No. 2015-03 will be effective retrospectively for the Company for the quarter ending December 31, 2016, 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 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 will be effective retrospectively for the Company for the quarter ending December 31, 2016, with early adoption permitted. The Company is currently assessing the impact adoption of this guidance will have on its 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 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. The Company is currently assessing the impact adoption of this guidance will have on its 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.

Acquisitions and Divestitures

Acquisitions and Divestitures	3 Months Ended
	Dec. 31, 2015
Business Combinations [Abstract]
Acquisition and Divestitures	Acquisitions In the first quarter of fiscal 2016, 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 December 31, 2015. In connection with the acquisition, the Company recorded goodwill of $151 million related to purchase price allocations. The purchase price allocations may be subsequently adjusted to reflect final valuation studies. In the first quarter of fiscal 2015, the Company completed two acquisitions for a combined purchase price, net of cash acquired, of $38 million , $9 million of which was paid in the three months ended December 31, 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 $9 million . In the first quarter of fiscal 2015, the Company adjusted the purchase price allocation of the fiscal 2014 acquisition of Air Distribution Technologies Inc. (ADT). 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 in the three months ended December 31, 2014. Also, in connection with this acquisition, the Company recorded additional goodwill of $5 million in the first quarter of fiscal 2015 related to the purchase price allocations.

Discontinued Operations (Notes)

Discontinued Operations (Notes)	3 Months Ended
	Dec. 31, 2015
Discontinued Operations [Abstract]
Discontinued Operations	4. Discontinued Operations 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. 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., 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 will be 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 expected to be significant. At March 31, 2015, the Company determined that its GWS 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. The assets and liabilities of the GWS segment were reflected as held for sale in the consolidated statements of financial position at December 31, 2014 . The following table summarizes the results of GWS, reclassified as discontinued operations for the three month period ended December 31, 2014 (in millions): Three Months Ended 2014 Net sales $ 1,042 Income from discontinued operations before income taxes 42 Provision for income taxes on discontinued operations 13 Income from discontinued operations attributable to noncontrolling interests, net of tax 3 Income from discontinued operations $ 26 For the three months ended December 31, 2014 , the effective tax rate was less than the U.S. federal statutory rate of 35% primarily due to foreign tax rate differentials. For the three months ended December 31, 2014 , the income from discontinued operations before income taxes included transaction costs of $7 million . Assets and Liabilities Held for Sale In April 2015, the Company signed an agreement formally establishing the previously announced automotive interiors joint venture with Yanfeng Automotive Trim Systems. The formation of the joint venture closed on July 2, 2015. The assets and liabilities to be contributed to the joint venture met the criteria to be classified as held for sale beginning in the third quarter of fiscal 2014. At March 31, 2015, the Company determined certain product lines of the Automotive Experience Interiors segment that would not be contributed to the aforementioned automotive interiors joint venture also met the criteria to be classified as held for sale. At September 30, 2015, $55 million of assets and $42 million of liabilities related to certain product lines of the Automotive Experience Interiors segment which were not contributed to the automotive interiors joint venture were classified as held for sale. At December 31, 2015, these product lines no longer met the criteria to be classified as held for sale. The Interiors businesses classified as held for sale did not meet the criteria to be classified as a discontinued operation primarily due to the Company's continuing involvement in these operations following the divestiture. The following table summarizes the carrying value of the Interiors and GWS assets and liabilities held for sale (in millions): December 31, 2014 Interiors Global Workplace Solutions Total Cash and cash equivalents $ — $ 19 $ 19 Accounts receivable - net 509 756 1,265 Inventories 214 6 220 Other current assets 177 57 234 Property, plant and equipment - net 555 38 593 Goodwill 21 245 266 Other intangible assets - net 4 34 38 Investments in partially-owned affiliates 71 — 71 Other noncurrent assets 33 57 90 Assets held for sale $ 1,584 $ 1,212 $ 2,796 Short-term debt $ — $ 6 $ 6 Accounts payable 555 614 1,169 Accrued compensation and benefits 16 102 118 Other current liabilities 160 253 413 Liabilities held for sale $ 731 $ 975 $ 1,706

Percentage-of-Completion Contra

Percentage-of-Completion Contracts	3 Months Ended
	Dec. 31, 2015
Disclosure Percentage Of Completion Contracts Additional Information [Abstract]
Percentage-of-Completion Contracts	Percentage-of-Completion Contracts The Building Efficiency business records certain long-term contracts under the percentage-of-completion 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 - net 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 $410 million , $453 million and $498 million at December 31, 2015 , September 30, 2015 and December 31, 2014 , respectively. Billings in excess of costs and earnings related to these contracts were $337 million , $340 million and $339 million at December 31, 2015 , September 30, 2015 and December 31, 2014 , respectively.

Inventories

Inventories	3 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories	Inventories Inventories consisted of the following (in millions): December 31, 2015 September 30, 2015 December 31, 2014 Raw materials and supplies $ 1,204 $ 1,084 $ 1,096 Work-in-process 414 369 382 Finished goods 1,151 924 961 Inventories $ 2,769 $ 2,377 $ 2,439

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets (Notes)	3 Months Ended
	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS	Goodwill and Other Intangible Assets Effective October 1, 2015, the Company reorganized the reportable segments within its Building Efficiency business to align with its new management reporting structure and business activities. Historical information has been revised to reflect the new Building Efficiency reportable segments. Refer to Note 17, “Segment Information,” of the notes to consolidated financial statements for further information. The changes in the carrying amount of goodwill in each of the Company’s reportable segments for the ninth month period ended September 30, 2015 and the three month period ended December 31, 2015 were as follows (in millions): Business Acquisitions Business Divestitures Currency Translation and Other December 31, September 30, 2014 2015 Building Efficiency Systems and Service North America $ 983 $ — $ (2 ) $ (3 ) $ 978 Products North America 1,689 29 (14 ) (3 ) 1,701 Asia 404 — — (15 ) 389 Rest of World 332 — — (22 ) 310 Automotive Experience Seating 2,482 — (4 ) (114 ) 2,364 Power Solutions 1,120 — — (38 ) 1,082 Total $ 7,010 $ 29 $ (20 ) $ (195 ) $ 6,824 Business Acquisitions Business Divestitures Currency Translation and Other September 30, December 31, 2015 2015 Building Efficiency Systems and Service North America $ 978 $ — $ — $ — $ 978 Products North America 1,701 — — (2 ) 1,699 Asia 389 151 — (8 ) 532 Rest of World 310 — — (7 ) 303 Automotive Experience Seating 2,364 — — (32 ) 2,332 Power Solutions 1,082 — — (8 ) 1,074 Total $ 6,824 $ 151 $ — $ (57 ) $ 6,918 At December 31, 2014, accumulated goodwill impairment charges included $430 million and $47 million related to the Automotive Experience Interiors and Building Efficiency Rest of World - Latin America reporting units, respectively. 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 17, “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. The Company’s other intangible assets, primarily from business acquisitions valued based on independent appraisals, consisted of (in millions): December 31, 2015 September 30, 2015 December 31, 2014 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Patented technology $ 79 $ (60 ) $ 19 $ 80 $ (59 ) $ 21 $ 85 $ (57 ) $ 28 Customer relationships 1,004 (221 ) 783 975 (206 ) 769 1,000 (172 ) 828 Miscellaneous 371 (132 ) 239 307 (123 ) 184 312 (113 ) 199 Total amortized intangible assets 1,454 (413 ) 1,041 1,362 (388 ) 974 1,397 (342 ) 1,055 Unamortized intangible assets Trademarks/trade names 542 — 542 542 — 542 545 — 545 Total intangible assets $ 1,996 $ (413 ) $ 1,583 $ 1,904 $ (388 ) $ 1,516 $ 1,942 $ (342 ) $ 1,600 Amortization of other intangible assets for the three month periods ended December 31, 2015 and 2014 was $24 million . Excluding the impact of any future acquisitions, the Company anticipates amortization for fiscal 2017 , 2018 , 2019 , 2020 and 2021 will be approximately $98 million , $96 million , $81 million , $71 million and $64 million per year, respectively.

Product Warranties

Product Warranties	3 Months Ended
	Dec. 31, 2015
Product Warranties Disclosures [Abstract]
Product Warranties	Product Warranties 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 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, including extended warranties for which deferred revenue is recorded, for the three months ended December 31, 2015 and 2014 were as follows (in millions): Three Months Ended December 31, 2015 2014 Balance at beginning of period $ 300 $ 319 Accruals for warranties issued during the period 95 67 Accruals from acquisition and divestitures 35 — Accruals related to pre-existing warranties (including changes in estimates) (2 ) 1 Settlements made (in cash or in kind) during the period (78 ) (69 ) Currency translation (1 ) (3 ) Balance at end of period $ 349 $ 315

Significant Restructuring Costs

Significant Restructuring Costs	3 Months Ended
	Dec. 31, 2015
Restructuring Charges [Abstract]
Significant Restructuring 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 2015, the Company committed to a significant restructuring plan (2015 Plan) and recorded $397 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 Automotive Experience, Building Efficiency and Power Solutions businesses and at Corporate. The costs consist primarily of workforce reductions, plant closures and asset impairments. Of the restructuring and impairment costs recorded, $182 million related to the Automotive Experience Seating segment, $166 million related to Corporate, $27 million related to the Building Efficiency Rest of World segment, $11 million related to the Power Solutions segment, $7 million related to the Building Efficiency Asia segment, $2 million related to the Building Efficiency Systems and Service North America segment and $2 million related to the Building Efficiency Products North America segment. The restructuring actions are expected to be substantially complete in fiscal 2016. The following table summarizes the changes in the Company’s 2015 Plan reserve, included within other current liabilities in the consolidated statements of financial position (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Currency Total Original Reserve $ 191 $ 183 $ 23 $ — $ 397 Utilized—cash — — — — — Utilized—noncash — (183 ) — — (183 ) Balance at September 30, 2015 $ 191 $ — $ 23 $ — $ 214 Utilized—cash (24 ) — (23 ) — (47 ) Utilized—noncash — — — (3 ) (3 ) Balance at December 31, 2015 $ 167 $ — $ — $ (3 ) $ 164 In fiscal 2014, the Company committed to a significant restructuring plan (2014 Plan) and recorded $324 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 Automotive Experience, Building Efficiency and Power Solutions businesses and included workforce reductions, plant closures, and asset and goodwill impairments. Of the restructuring and impairment costs recorded, $130 million related to the Automotive Experience Interiors segment, $119 million related to the Building Efficiency Rest of World segment, $29 million related to the Automotive Experience Seating 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 fiscal 2016. Additionally, the Company recorded $53 million of restructuring and impairment costs within discontinued operations related to the Automotive Experience Electronics business in fiscal 2014. The following table summarizes the changes in the Company’s 2014 Plan reserve, included within other current liabilities in the consolidated statements of financial position (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 (12 ) — — — — (12 ) Utilized—noncash — — — — (3 ) (3 ) Balance at December 31, 2015 $ 106 $ — $ — $ — $ (22 ) $ 84 In fiscal 2013, the Company committed to a significant restructuring plan (2013 Plan) and recorded $903 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 Automotive Experience, Building Efficiency and Power Solutions businesses and included workforce reductions, plant closures, and asset and goodwill impairments. Of the restructuring and impairment costs recorded, $560 million related to the Automotive Experience Interiors segment, $152 million related to the Automotive Experience Seating segment, $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 fiscal 2016. Additionally, the Company recorded $82 million of restructuring costs within discontinued operations, of which $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, included within other current liabilities in the consolidated statements of financial position (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 (12 ) — — — — (12 ) Utilized—noncash — — — — (1 ) (1 ) Balance at December 31, 2015 $ 73 $ — $ — $ — $ (18 ) $ 55 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. The Company's fiscal 2015, 2014 and 2013 restructuring plans included workforce reductions of approximately 13,900 employees ( 8,200 for the Automotive Experience business, 4,700 for the Building Efficiency business, 900 for the Power Solutions business and 100 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 December 31, 2015 , approximately 9,400 of the employees have been separated from the Company pursuant to the restructuring plans. In addition, the restructuring plans included nineteen plant closures ( fifteen for Automotive Experience and four for Building Efficiency). As of December 31, 2015 , nine of the nineteen plants have been closed. 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 low cost countries 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. Because of the importance of new vehicle sales by major automotive manufacturers to operations, the Company is affected by the general business conditions in this industry. Future adverse developments in the automotive industry could impact the Company’s liquidity position, lead to impairment charges and/or require additional restructuring of its operations.

Income Taxes

Income Taxes	3 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In calculating the provision for income taxes, the Company uses an estimate of the annual effective tax rate based upon the facts and circumstances known at each interim period. On a quarterly basis, the actual effective tax rate is adjusted, as appropriate, based upon changed facts and circumstances, if any, as compared to those forecasted at the beginning of the fiscal year and each interim period thereafter. For the three months ended December 31, 2015 , the Company's effective tax rate for continuing operations was 21% . The effective rate was lower than the U.S. federal statutory rate of 35% primarily due to global tax planning and foreign tax rate differentials, partially offset by the tax impacts of separation costs related to the proposed spin-off of the Automotive Experience business. For the three months ended December 31, 2014 , the Company's effective tax rate for continuing operations was 19% . The effective rate was lower than the U.S. federal statutory rate of 35% primarily due to global tax planning and foreign tax rate differentials. Valuation Allowance The Company reviews the realizability of its deferred tax assets 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. Uncertain Tax Positions At September 30, 2015 , the Company had gross tax effected unrecognized tax benefits of $1,235 million , of which $1,180 million , if recognized, would impact the effective tax rate. Total net accrued interest at September 30, 2015 was approximately $41 million (net of tax benefit). The interest and penalties accrued during the three months ended December 31, 2015 and 2014 was not material. The Company recognizes interest and penalties related to unrecognized tax benefits as a component of income tax expense. In the first quarter of fiscal 2015, the Company settled tax audits in multiple jurisdictions. The benefit of those settlements was substantially offset by a net tax provision recorded in the quarter where it was more likely than not that the losses would not be realized. In the U.S., it is expected that fiscal years 2013 through 2014 will be examined by the Internal Revenue Service during 2016. Additionally, the Company is currently under exam in the following major foreign jurisdictions: Tax Jurisdiction Tax Years Covered Belgium 2010 - 2012 Brazil 2004 - 2008, 2011 - 2012 Canada 2008 - 2013 France 2002 - 2013 Germany 2007 - 2012 Italy 2006, 2011 Korea 2008 - 2012 Mexico 2010 - 2011 Spain 2013 United Kingdom 2011 - 2013 It is reasonably possible that certain tax examinations and/or tax litigation will conclude within the next twelve months, the impact of which could be up to a $50 million benefit to tax expense. Impacts of Tax Legislation 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. During the first quarter of fiscal 2016, other tax legislation was adopted in various jurisdictions. These law changes did not have a material impact on the Company's consolidated financial statements.

Pension and Postretirement Plan

Pension and Postretirement Plans	3 Months Ended
	Dec. 31, 2015
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Pension and Postretirement Plans	Pension and Postretirement Plans The components of the Company’s net periodic benefit costs from continuing operations associated with its defined benefit pension and postretirement plans are shown in the tables below in accordance with ASC 715, "Compensation – Retirement Benefits" (in millions): Pension Benefits U.S. Plans Three Months Ended December 31, Non-U.S. Plans Three Months Ended December 31, 2015 2014 2015 2014 Service cost $ 4 $ 8 $ 5 $ 7 Interest cost 25 30 10 12 Expected return on plan assets (47 ) (45 ) (13 ) (13 ) Net periodic benefit cost (credit) $ (18 ) $ (7 ) $ 2 $ 6 Postretirement Benefits Three Months Ended December 31, 2015 2014 Service cost $ 1 $ 1 Interest cost 1 2 Expected return on plan assets (3 ) (3 ) Net periodic benefit credit $ (1 ) $ —

Debt and Financing Arrangements

Debt and Financing Arrangements	3 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Debt and Financing Arrangements	Debt and Financing Arrangements In November 2015 and December 2015, a $35 million and a $100 million committed revolving credit facility, respectively, expired. The Company entered into a new $35 million committed revolving credit facility scheduled to expire in November 2016 and a new $100 million committed revolving credit facility scheduled to expire in December 2016. As of December 31, 2015 , there were no draws on either facility. In December 2015, the Company entered into a nine -month, $125 million , floating rate term loan scheduled to mature in September 2016. Proceeds from the term loan were used for general corporate purposes. In December 2015, the Company entered into a nine -month, $200 million , floating rate term loan scheduled to mature in September 2016. Proceeds from the term loan were used for general corporate purposes. In December 2014, the Company entered into a nine -month, $500 million , floating rate term loan scheduled to mature in September 2015. Proceeds from the term loan were used for general corporate purposes. The loan was repaid in the quarter ending September 30, 2015. In December 2014, the Company entered into a nine -month, $100 million , floating rate term loan scheduled to mature in September 2015. Proceeds from the term loan were used for general corporate purposes. The loan was repaid in the quarter ending September 30, 2015. Net Financing Charges The Company's net financing charges line item in the consolidated statements of income for the three month periods ended December 31, 2015 and 2014 contained the following components (in millions): Three Months Ended December 31, 2015 2014 Interest expense, net of capitalized interest costs $ 73 $ 71 Banking fees and bond cost amortization 8 6 Interest income (2 ) (3 ) Net foreign exchange results for financing activities (11 ) (3 ) Net financing charges $ 68 $ 71

Earnings Per Share

Earnings Per Share	3 Months Ended
	Dec. 31, 2015
Earnings Per Share [Abstract]
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, Inc. 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, Inc. 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. The treasury stock method assumes that the Company uses the proceeds from the exercise of stock option awards to repurchase common stock 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, 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): Three Months Ended December 31, 2015 2014 Income Available to Common Shareholders Income from continuing operations $ 450 $ 481 Income from discontinued operations — 26 Basic and diluted income available to common shareholders $ 450 $ 507 Weighted Average Shares Outstanding Basic weighted average shares outstanding 647.7 661.4 Effect of dilutive securities: Stock options, unvested restricted stock and unvested performance share awards 5.1 6.6 Diluted weighted average shares outstanding 652.8 668.0 Antidilutive Securities Options to purchase common shares 0.2 0.2 During the three months ended December 31, 2015 and 2014 , the Company declared a dividend of $0.29 and $0.26 , respectively, per common share. The Company paid all dividends in the month subsequent to the end of each fiscal quarter.

Equity and Noncontrolling Inter

Equity and Noncontrolling Interests	3 Months Ended
	Dec. 31, 2015
Stockholders' Equity Note [Abstract]
Equity and Noncontrolling Interests	Equity and Noncontrolling Interests Other comprehensive income includes activity relating to discontinued operations. The following schedules present changes in consolidated equity attributable to Johnson Controls, Inc. and noncontrolling interests (in millions, net of tax): Three Months Ended December 31, 2015 Three Months Ended December 31, 2014 Equity Attributable to Johnson Controls, Inc. Equity Attributable to Noncontrolling Interests Total Equity Equity Attributable to Johnson Controls, Inc. Equity Attributable to Noncontrolling Interests Total Equity Beginning balance, September 30 $ 10,376 $ 163 $ 10,539 $ 11,311 $ 251 $ 11,562 Total comprehensive income: Net income 450 20 470 507 20 527 Foreign currency translation adjustments (160 ) (9 ) (169 ) (351 ) — (351 ) Realized and unrealized losses on derivatives (1 ) — (1 ) (10 ) — (10 ) Pension and postretirement plans — — — (3 ) — (3 ) Other comprehensive loss (161 ) (9 ) (170 ) (364 ) — (364 ) Comprehensive income 289 11 300 143 20 163 Other changes in equity: Cash dividends—common stock (188 ) — (188 ) (172 ) — (172 ) Dividends attributable to noncontrolling interests — (7 ) (7 ) — (8 ) (8 ) Repurchases of common stock — — — (600 ) — (600 ) Change in noncontrolling interest share — 764 764 — — — Other, including options exercised 29 — 29 141 — 141 Ending balance, December 31 $ 10,506 $ 931 $ 11,437 $ 10,823 $ 263 $ 11,086 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 $764 million. In November 2013, the Company's Board of Directors authorized a $3 billion increase in the Company's share repurchase program, which brought the total authorized amount under the repurchase program to $3.65 billion . 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. For the three month period ended December 31, 2014 , the Company repurchased approximately $600 million of its common shares. The Company consolidates certain subsidiaries in which the noncontrolling interest party has within its 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): Three Months Ended December 31, 2015 2014 Beginning balance, September 30 $ 212 $ 194 Net income 20 19 Foreign currency translation adjustments (8 ) — Realized and unrealized losses on derivatives (2 ) — Dividends (6 ) (4 ) Ending balance, December 31 $ 216 $ 209 The following schedules present changes in accumulated other comprehensive income (AOCI) attributable to Johnson Controls, Inc. (in millions, net of tax): Three Months Ended December 31, 2015 2014 Foreign currency translation adjustments Balance at beginning of period $ (1,047 ) $ (248 ) Aggregate adjustment for the period (net of tax effect of $(4) and $2) (160 ) (351 ) Balance at end of period (1,207 ) (599 ) Realized and unrealized gains (losses) on derivatives Balance at beginning of period (7 ) 4 Current period changes in fair value (net of tax effect of $0 and $(5)) 2 (9 ) Reclassification to income (net of tax effect of $(1) and $0) * (3 ) (1 ) Balance at end of period (8 ) (6 ) Pension and postretirement plans Balance at beginning of period (3 ) 7 Reclassification to income (net of tax effect of $0 and $(1)) ** — (3 ) Balance at end of period (3 ) 4 Accumulated other comprehensive loss, end of period $ (1,218 ) $ (601 ) * Refer to Note 15, "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. ** Refer to Note 11, "Pension and Postretirement 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 three months ended December 31, 2014 , the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in income from discontinued operations, net of tax on the consolidated statements of income.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	3 Months Ended
	Dec. 31, 2015
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 16, "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. 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 primarily uses foreign currency exchange contracts to hedge certain of its foreign exchange rate exposures. The Company hedges 70% to 90% of the nominal amount of each of its known foreign exchange transactional exposures. The Company has entered into cross-currency interest rate swaps and foreign currency denominated debt obligations to selectively hedge portions of its net investment in Japan. 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, Inc. where they offset gains and losses recorded on the Company’s net investment in Japan. At December 31, 2015 , the Company had three cross-currency interest rate swaps outstanding totaling 15 billion yen and 37 billion yen of foreign denominated debt outstanding designated as net investment hedges in the Company’s net investment in Japan. At September 30, 2015 and December 31, 2014 , 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 or December 31, 2014. The Company uses commodity hedge contracts in the financial derivatives market 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. The Company had the following outstanding contracts to hedge forecasted commodity purchases: Volume Outstanding as of Commodity Units December 31, 2015 September 30, 2015 December 31, 2014 Copper Pounds 11,805,000 14,648,000 11,070,000 Lead Metric Tons 6,720 6,785 10,125 Aluminum Metric Tons 4,390 5,700 890 Tin Metric Tons 1,456 2,080 1,485 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 December 31, 2015 , September 30, 2015 and December 31, 2014 , the Company had hedged approximately 3.8 million , 4.0 million and 4.1 million shares of its common stock, respectively. The Company selectively uses interest rate swaps to reduce market risk associated with changes in interest rates for its fixed-rate bonds. As fair value hedges, the interest rate swaps and related debt balances are valued under a market approach using publicized swap curves. 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 one fixed to floating interest rate swap totaling approximately $125 million to hedge the coupon of its 7.7% notes that matured in March 2015 and four fixed to floating interest rate swaps totaling $800 million to hedge the coupon of its 5.5% notes maturing 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 twelve interest rate swaps outstanding as of December 31, 2015 and September 30, 2015 . There were thirteen interest rate swaps outstanding as of December 31, 2014 . 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 (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. 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 December 31, September 30, December 31, December 31, September 30, December 31, 2015 2015 2014 2015 2015 2014 Other current assets Foreign currency exchange derivatives $ 26 $ 31 $ 38 $ 21 $ 27 $ 28 Commodity derivatives 1 — — — — — Interest rate swaps — 1 — — — — Cross-currency interest rate swaps 1 5 25 — — — Other noncurrent assets Interest rate swaps 1 5 2 — — — Equity swap — — — 149 164 196 Total assets $ 29 $ 42 $ 65 $ 170 $ 191 $ 224 Other current liabilities Foreign currency exchange derivatives $ 34 $ 37 $ 49 $ 8 $ 26 $ 24 Commodity derivatives 7 7 7 — — — Cross-currency interest rate swaps 1 1 — — — — Current portion of long-term debt Fixed rate debt swapped to floating 1,202 801 125 — — — Long-term debt Foreign currency denominated debt 307 — — — — — Fixed rate debt swapped to floating 448 855 1,651 — — — Other noncurrent liabilities Interest rate swaps — — 1 — — — Total liabilities $ 1,999 $ 1,701 $ 1,833 $ 8 $ 26 $ 24 The Company enters into International Swaps and Derivatives Associations (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 December 31, 2015 , September 30, 2015 and December 31, 2014 , 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 December 31, September 30, December 31, December 31, September 30, December 31, 2015 2015 2014 2015 2015 2014 Gross amount recognized $ 199 $ 233 $ 289 $ 2,007 $ 1,727 $ 1,857 Gross amount eligible for offsetting (9 ) (8 ) (21 ) (9 ) (8 ) (21 ) Net amount $ 190 $ 225 $ 268 $ 1,998 $ 1,719 $ 1,836 The following tables present the location and amount of the effective portion of gains and losses gross of tax on derivative instruments and related hedge items reclassified from AOCI into the Company’s consolidated statements of income for the three months ended December 31, 2015 and 2014 and amounts recorded in AOCI net of tax in the consolidated statements of financial position (in millions): Amount of Gain (Loss) Reclassified from AOCI into Income Derivatives in ASC 815 Cash Flow Hedging Relationships Location of Gain (Loss) Reclassified from AOCI into Income Three Months Ended December 31, 2015 2014 Foreign currency exchange derivatives Cost of sales $ — $ 1 Commodity derivatives Cost of sales (4 ) — Total $ (4 ) $ 1 Derivatives in ASC 815 Cash Flow Hedging Relationships Amount of Gain (Loss) Recognized in AOCI on Derivative December 31, 2015 September 30, 2015 December 31, 2014 Foreign currency exchange derivatives $ (7 ) $ (5 ) $ (7 ) Commodity derivatives (6 ) (7 ) (5 ) Forward treasury locks 5 5 6 Total $ (8 ) $ (7 ) $ (6 ) Amount of Gain (Loss) Recognized in Income on Derivative Derivatives in ASC 815 Fair Value Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Three Months Ended December 31, 2015 2014 Interest rate swaps Net financing charges $ (5 ) $ 2 Fixed rate debt swapped to floating Net financing charges 5 (2 ) Total $ — $ — Amount of Gain (Loss) Recognized in Income on Derivative Derivatives Not Designated as Hedging Instruments under ASC 815 Location of Gain (Loss) Recognized in Income on Derivative Three Months Ended December 31, 2015 2014 Foreign currency exchange derivatives Cost of sales $ (1 ) $ (2 ) Foreign currency exchange derivatives Net financing charges — (2 ) Equity swap Selling, general and administrative (6 ) 19 Total $ (7 ) $ 15 There were no gains or losses recognized in cumulative translation adjustment (CTA) within AOCI on the effective portion of outstanding net investment hedges at December 31, 2015. The amount of gains recognized as CTA within AOCI on the effective portion of outstanding net investment hedges were $2 million and $15 million at September 30, 2015 and December 31, 2014 , respectively. For the three months ended December 31, 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

Fair Value Measurements	3 Months Ended
	Dec. 31, 2015
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 December 31, 2015 , September 30, 2015 and December 31, 2014 (in millions): Fair Value Measurements Using: Total as of December 31, 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 $ 47 $ — $ 47 $ — Commodity derivatives 1 — 1 — Cross-currency interest rate swaps 1 — 1 — Other noncurrent assets Interest rate swaps 1 — 1 — Investments in marketable common stock 4 4 — — Equity swap 149 149 — — Total assets $ 203 $ 153 $ 50 $ — Other current liabilities Foreign currency exchange derivatives $ 42 $ — $ 42 $ — Commodity derivatives 7 — 7 — Cross-currency interest rate swaps 1 — 1 — Current portion of long-term debt Fixed rate debt swapped to floating 1,202 — 1,202 — Long-term debt Foreign currency denominated debt 307 307 — — Fixed rate debt swapped to floating 448 — 448 — Total liabilities $ 2,007 $ 307 $ 1,700 $ — 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 — 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 — 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 $ — Fair Value Measurements Using: Total as of December 31, 2014 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 $ 66 $ — $ 66 $ — Cross-currency interest rate swaps 25 — 25 — Other noncurrent assets Interest rate swaps 2 — 2 — Investments in marketable common stock 4 4 — — Equity swap 196 196 — — Total assets $ 293 $ 200 $ 93 $ — Other current liabilities Foreign currency exchange derivatives $ 73 $ — $ 73 $ — Commodity derivatives 7 — 7 — Current portion of long-term debt Fixed rate debt swapped to floating 125 — 125 — Long-term debt Fixed rate debt swapped to floating 1,651 — 1,651 — Other noncurrent liabilities Interest rate swaps 1 — 1 — Total liabilities $ 1,857 $ — $ 1,857 $ — Valuation Methods Foreign currency exchange derivatives – The Company selectively hedges anticipated transactions that are subject to foreign exchange rate risk primarily using foreign currency exchange hedge contracts. The foreign currency exchange derivatives are valued under a market approach using publicized spot and forward prices. 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 December 31, 2015 , September 30, 2015 and December 31, 2014 . The fair value of foreign currency exchange derivatives not designated as hedging instruments under ASC 815 are recorded in the consolidated statements of income. Commodity derivatives – 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. The commodity derivatives are valued under a market approach using publicized prices, where available, or dealer quotes. 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. These contracts were highly effective in hedging the variability in future cash flows attributable to changes in commodity prices at December 31, 2015 , September 30, 2015 and December 31, 2014 . Interest rate swaps and related debt – The Company selectively uses interest rate swaps to reduce market risk associated with changes in interest rates for its fixed-rate bonds. As fair value hedges, the interest rate swaps and related debt balances are valued under a market approach using publicized swap curves. 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 one fixed to floating interest rate swap totaling approximately $125 million to hedge the coupon of its 7.7% notes that matured in March 2015 and four fixed to floating interest rate swaps totaling $800 million to hedge the coupon of its 5.5% notes maturing 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 twelve interest rate swaps outstanding as of December 31, 2015 and September 30, 2015 . There were thirteen interest rate swaps outstanding as of December 31, 2014 . Cross-currency interest rate swaps – The Company selectively uses cross-currency interest rate swaps to hedge the foreign currency rate risk associated with certain of its investments in Japan. The cross-currency interest rate swaps are valued using observable market data. Changes in the market value of the swaps are reflected in the CTA component of AOCI where they offset gains and losses recorded on the Company’s net investment in Japan. At December 31, 2015 , the Company had three cross-currency interest rate swaps outstanding totaling 15 billion yen. At September 30, 2015 and December 31, 2014 , the Company had four cross-currency interest rate swaps outstanding totaling 20 billion yen. Foreign currency denominated debt – The Company has entered into a foreign currency denominated debt obligation to selectively hedge portions of its net investment in Japan. The currency effect of the debt obligation is reflected in the CTA component of AOCI where it offsets gains and losses recorded on the Company’s net investment in Japan. The foreign denominated debt obligation is valued under a market approach using publicized spot prices. At December 31, 2015 , the Company had 37 billion yen of foreign denominated debt outstanding designated as net investment hedges in its net investment in Japan. The Company did not have any foreign denominated debt outstanding designated as a net investment hedge at September 30, 2015 or December 31, 2014 . Investments in marketable common stock – The Company invests in certain marketable common stock, which is valued under a market approach using publicized share prices. There were no unrealized gains or losses recorded in AOCI on these investments as of December 31, 2015 , September 30, 2015 and December 31, 2014 . Equity swaps – 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. 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. Changes in fair value of the equity swaps are reflected in the consolidated statements of income within selling, general and administrative expenses. 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 $6.5 billion , $6.7 billion and $6.9 billion at December 31, 2015 , September 30, 2015 and December 31, 2014 , respectively, was determined primarily using market quotes classified as Level 1 inputs within the ASC 820 fair value hierarchy.

Segment Information

Segment Information	3 Months Ended
	Dec. 31, 2015
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Segment Information	Segment Information Effective October 1, 2015, the Company reorganized the reportable segments within its Building Efficiency business to align with its new management reporting structure and business activities. Prior to this reorganization, Building Efficiency was comprised of three reportable segments for financial reporting purposes: North America Systems and Service, Asia and Other. As a result of this change, Building Efficiency is now comprised of four reportable segments for financial reporting purposes: Systems and Service North America, Products North America, Asia and Rest of World. Historical information has been revised to reflect the new Building Efficiency reportable segments. A summary of the significant Building Efficiency reportable segment changes is as follows: • The North America Unitary Products business, Air Distribution Technologies business and refrigeration systems business, as well as heating, ventilating and air conditioning (HVAC) products installed for Navy and Marine customers, previously included in the “Other” segment, are now part of a new reportable segment named “Products North America.” • The building controls parts business in North America, previously included in the “North America Systems and Service” segment, is now part of the “Products North America” segment. • The remainder of the “Other” segment has been renamed “Rest of World.” • Certain reportable segment allocation methodologies have been refined for centralized costs such as engineering and headquarters. At March 31, 2015, the Company determined that its GWS segment 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. 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 seven reportable segments for financial reporting purposes. The Company’s seven reportable segments are presented in the context of its three primary businesses – Building Efficiency, Automotive Experience and Power Solutions. 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. Automotive Experience Automotive Experience designs and manufactures interior systems and products for passenger cars and light trucks, including vans, pick-up trucks and sport utility/crossover vehicles. • Seating produces automotive seat metal structures and mechanisms, foam, trim, fabric and complete seat systems. • Interiors produces instrument panels, floor consoles and door panels. 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. Management evaluates the performance of the segments based primarily on segment income, which represents income from continuing operations before income taxes and noncontrolling interests excluding net financing charges, significant restructuring and impairment costs, and net mark-to-market adjustments on pension and postretirement plans. General corporate and other overhead expenses are allocated to segments in determining segment income. As mentioned above, the previously reported GWS segment met the criteria to be classified as a discontinued operation, and general corporate overhead was not allocated to discontinued operations. The Company reported discontinued operations through retrospective application to all periods presented, resulting in general corporate allocation changes between the segments in the prior periods. Financial information relating to the Company’s reportable segments is as follows (in millions): Net Sales Three Months Ended December 31, 2015 2014 Building Efficiency Systems and Service North America $ 984 $ 957 Products North America 557 558 Asia 992 501 Rest of World 423 481 2,956 2,497 Automotive Experience Seating 4,086 4,135 Interiors 147 1,148 4,233 5,283 Power Solutions 1,740 1,844 Total net sales $ 8,929 $ 9,624 Segment Income (Loss) Three Months Ended 2015 2014 Building Efficiency Systems and Service North America $ 93 $ 64 Products North America 17 44 Asia 62 49 Rest of World (5 ) — 167 157 Automotive Experience Seating 166 201 Interiors 12 33 178 234 Power Solutions 342 315 Total segment income $ 687 $ 706 Net financing charges (68 ) (71 ) Income from continuing operations before income taxes $ 619 $ 635

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies 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. Reserves for environmental liabilities totaled $24 million , $23 million and $23 million at December 31, 2015 , September 30, 2015 and December 31, 2014 , respectively. The Company reviews the status of its environmental sites on a quarterly basis and adjusts its reserves accordingly. 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, primarily in the Power Solutions business. At December 31, 2015 , September 30, 2015 and December 31, 2014 , the Company recorded conditional asset retirement obligations of $58 million , $59 million and $53 million , respectively. 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.

Subsequent Events (Notes)

Subsequent Events (Notes)	3 Months Ended
	Dec. 31, 2015
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events On January 25, 2016 , the Company announced that it had entered into a definitive merger agreement (the "Merger Agreement") with Tyco International plc ("Tyco"), a wholly owned indirect subsidiary of Tyco ("Merger Sub") and the other party thereto under which the Company will combine with Tyco, a global fire and security provider. Under the terms of the agreement, which has been unanimously approved by the boards of directors of both parties, each outstanding share of the Company’s common stock, other than shares held by the Company, its subsidiaries, Tyco or Merger Sub, will be converted into the right to receive (subject to proration as described below), at the holder’s election, either: (i) one (1) (the "Exchange Ratio") ordinary share of the combined company (the "Share Consideration"); or (ii) an amount in cash equal to $34.88 (the "Cash Consideration"). Elections will be prorated so that the Company's shareholders will receive in the aggregate approximately $3.864 billion of cash in the merger. Holders that do not make an election will be treated as having elected to receive the Share Consideration. The Exchange Ratio takes into account the effects of a Tyco share consolidation contemplated by the Merger Agreement whereby, immediately prior to the merger, every issued and unissued ordinary share of Tyco will be consolidated into 0.955 of a share of Tyco. As a result of the merger, the Company's shareholders will own approximately 56 percent of the equity of the combined company, and Tyco shareholders will own approximately 44 percent of the equity of the combined company. The transaction is expected to be completed by the end of fiscal year 2016, subject to certain closing conditions, including, among others, (i) the approval and adoption of the Merger Agreement by holders of two thirds of the shares of the Company’s common stock entitled to vote on such matter, (ii) the approval by the Tyco shareholders at a special meeting of the Tyco shareholders (the "Tyco Special Meeting") of (A) the issuance of Tyco shares in connection with the merger, (B) the Tyco share consolidation and (C) the increase in Tyco’s authorized share capital, in each case, by a majority of the votes cast on these matters at the Tyco Special Meeting, and of certain amendments to Tyco’s articles of association, including a change of its name to "Johnson Controls plc," by at least 75% of the votes cast on these matters at the Tyco Special Meeting, (iii) the expiration or termination of any waiting period applicable to the Merger under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, the consent of, or filing with, certain specified antitrust authorities, and certain other customary regulatory approvals, and (iv) Tyco’s obtaining the financing required to close the merger on the terms set forth in the Merger Agreement. Under the terms of the Merger Agreement, the combined company will be renamed "Johnson Controls plc," and the shares of the combined company will be listed on the New York Stock Exchange and trade under the symbol "JCI." The Merger Agreement also provides for the combined company to maintain Tyco’s Irish legal domicile and global headquarters in Cork, Ireland and for its primary operational headquarters in North America to be in Milwaukee, Wisconsin. At the effective time of the merger, the board of directors of the combined company will consist of eleven directors, six of whom will be directors of the Company’s board of directors prior to the closing and five of whom will be directors of the Tyco board of directors prior to the closing, comprised of the Company’s and Tyco’s current Chief Executive Officers and nine other directors to be mutually agreed between the Company and Tyco. One of the six directors from the Company’s board of directors prior to the closing shall be elected independent lead director. As of the effective time of the merger, Alex A. Molinaroli, the Company’s current Chairman, President, and Chief Executive Officer, will be appointed as Chairman and Chief Executive Officer of the combined company, and George R. Oliver, Tyco’s current Chief Executive Officer, will serve as President and Chief Operating Officer of the combined company. Mr. Oliver will succeed Mr. Molinaroli as Chief Executive Officer on the 18-month anniversary of the effective time (or such earlier time that Mr. Molinaroli ceases to be Chief Executive Officer). At that time, Mr. Molinaroli will become the Executive Chair, with the executive functions set forth in his employment agreement, and will serve in such role for 12 months . Following such 12-month period (or such earlier time that Mr. Molinaroli ceases to be Chairman) (the "Second Succession Date"), Mr. Oliver will become Chairman and Chief Executive Officer of the combined company. From the effective time until the date that is 3 months after the Second Succession Date, the appointment, removal or replacement of the Chief Executive Officer, Chairman, Executive Chairman, President or Chief Operating Officer of the combined company other than as described in this paragraph would require the affirmative vote of at least 75% of the non-executive directors of the combined company.

Financial Statements (Tables)

Financial Statements (Tables)	3 Months Ended
	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
New Accounting Pronouncement, Early Adoption [Table Text Block]	The impact of all adjustments made to the consolidated statements of financial position presented is summarized in the following table (in millions): December 31, 2015 Previous Method As Reported Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,607 $ 1,993 $ (614 ) Other noncurrent assets 2,195 2,734 539 Other current liabilities 3,562 3,516 (46 ) Other noncurrent liabilities 2,011 1,982 (29 ) September 30, 2015 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,313 $ 1,689 $ (624 ) Other noncurrent assets 2,227 2,773 546 Other current liabilities 3,324 3,275 (49 ) Other noncurrent liabilities 1,915 1,886 (29 ) December 31, 2014 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,302 $ 1,783 $ (519 ) Other noncurrent assets 2,801 3,219 418 Other current liabilities 3,019 2,945 (74 ) Other noncurrent liabilities 1,870 1,843 (27 )
Carrying Amounts and Classification of Assets and Liabilities for Consolidated VIEs	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): December 31, 2015 September 30, 2015 December 31, 2014 Current assets $ 242 $ 281 $ 184 Noncurrent assets 127 128 136 Total assets $ 369 $ 409 $ 320 Current liabilities $ 197 $ 232 $ 155 Noncurrent liabilities 33 34 36 Total liabilities $ 230 $ 266 $ 191

Financial Statements Early Adop

Financial Statements Early Adoption of New Accounting Pronouncement (Tables)	3 Months Ended
	Dec. 31, 2015
New Accounting Pronouncement, Early Adoption [Line Items]
New Accounting Pronouncement, Early Adoption [Table Text Block]	The impact of all adjustments made to the consolidated statements of financial position presented is summarized in the following table (in millions): December 31, 2015 Previous Method As Reported Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,607 $ 1,993 $ (614 ) Other noncurrent assets 2,195 2,734 539 Other current liabilities 3,562 3,516 (46 ) Other noncurrent liabilities 2,011 1,982 (29 ) September 30, 2015 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,313 $ 1,689 $ (624 ) Other noncurrent assets 2,227 2,773 546 Other current liabilities 3,324 3,275 (49 ) Other noncurrent liabilities 1,915 1,886 (29 ) December 31, 2014 Previously Reported Revised Effect of Change Consolidated Statement of Financial Position Other current assets $ 2,302 $ 1,783 $ (519 ) Other noncurrent assets 2,801 3,219 418 Other current liabilities 3,019 2,945 (74 ) Other noncurrent liabilities 1,870 1,843 (27 )

Discontinued Operations (Tables

Discontinued Operations (Tables)	3 Months Ended
	Dec. 31, 2014
Discontinued Operations [Abstract]
Discontinued Operations by Disposal Group - Global Workplace Solutions	The following table summarizes the results of GWS, reclassified as discontinued operations for the three month period ended December 31, 2014 (in millions): Three Months Ended 2014 Net sales $ 1,042 Income from discontinued operations before income taxes 42 Provision for income taxes on discontinued operations 13 Income from discontinued operations attributable to noncontrolling interests, net of tax 3 Income from discontinued operations $ 26
Assets and Liabilities Held for Sale, Specific Transactions	The following table summarizes the carrying value of the Interiors and GWS assets and liabilities held for sale (in millions): December 31, 2014 Interiors Global Workplace Solutions Total Cash and cash equivalents $ — $ 19 $ 19 Accounts receivable - net 509 756 1,265 Inventories 214 6 220 Other current assets 177 57 234 Property, plant and equipment - net 555 38 593 Goodwill 21 245 266 Other intangible assets - net 4 34 38 Investments in partially-owned affiliates 71 — 71 Other noncurrent assets 33 57 90 Assets held for sale $ 1,584 $ 1,212 $ 2,796 Short-term debt $ — $ 6 $ 6 Accounts payable 555 614 1,169 Accrued compensation and benefits 16 102 118 Other current liabilities 160 253 413 Liabilities held for sale $ 731 $ 975 $ 1,706

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Dec. 31, 2015
Inventory Disclosure [Abstract]
Inventories	Inventories consisted of the following (in millions): December 31, 2015 September 30, 2015 December 31, 2014 Raw materials and supplies $ 1,204 $ 1,084 $ 1,096 Work-in-process 414 369 382 Finished goods 1,151 924 961 Inventories $ 2,769 $ 2,377 $ 2,439

Goodwill and Other Intangible30

Goodwill and Other Intangible Assets (Tables)	3 Months Ended
	Dec. 31, 2015
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 ninth month period ended September 30, 2015 and the three month period ended December 31, 2015 were as follows (in millions): Business Acquisitions Business Divestitures Currency Translation and Other December 31, September 30, 2014 2015 Building Efficiency Systems and Service North America $ 983 $ — $ (2 ) $ (3 ) $ 978 Products North America 1,689 29 (14 ) (3 ) 1,701 Asia 404 — — (15 ) 389 Rest of World 332 — — (22 ) 310 Automotive Experience Seating 2,482 — (4 ) (114 ) 2,364 Power Solutions 1,120 — — (38 ) 1,082 Total $ 7,010 $ 29 $ (20 ) $ (195 ) $ 6,824 Business Acquisitions Business Divestitures Currency Translation and Other September 30, December 31, 2015 2015 Building Efficiency Systems and Service North America $ 978 $ — $ — $ — $ 978 Products North America 1,701 — — (2 ) 1,699 Asia 389 151 — (8 ) 532 Rest of World 310 — — (7 ) 303 Automotive Experience Seating 2,364 — — (32 ) 2,332 Power Solutions 1,082 — — (8 ) 1,074 Total $ 6,824 $ 151 $ — $ (57 ) $ 6,918
Other Intangible Assets	The Company’s other intangible assets, primarily from business acquisitions valued based on independent appraisals, consisted of (in millions): December 31, 2015 September 30, 2015 December 31, 2014 Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Gross Carrying Amount Accumulated Amortization Net Amortized intangible assets Patented technology $ 79 $ (60 ) $ 19 $ 80 $ (59 ) $ 21 $ 85 $ (57 ) $ 28 Customer relationships 1,004 (221 ) 783 975 (206 ) 769 1,000 (172 ) 828 Miscellaneous 371 (132 ) 239 307 (123 ) 184 312 (113 ) 199 Total amortized intangible assets 1,454 (413 ) 1,041 1,362 (388 ) 974 1,397 (342 ) 1,055 Unamortized intangible assets Trademarks/trade names 542 — 542 542 — 542 545 — 545 Total intangible assets $ 1,996 $ (413 ) $ 1,583 $ 1,904 $ (388 ) $ 1,516 $ 1,942 $ (342 ) $ 1,600

Product Warranties (Tables)

Product Warranties (Tables)	3 Months Ended
	Dec. 31, 2015
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, including extended warranties for which deferred revenue is recorded, for the three months ended December 31, 2015 and 2014 were as follows (in millions): Three Months Ended December 31, 2015 2014 Balance at beginning of period $ 300 $ 319 Accruals for warranties issued during the period 95 67 Accruals from acquisition and divestitures 35 — Accruals related to pre-existing warranties (including changes in estimates) (2 ) 1 Settlements made (in cash or in kind) during the period (78 ) (69 ) Currency translation (1 ) (3 ) Balance at end of period $ 349 $ 315

Significant Restructuring Cos32

Significant Restructuring Costs (Tables)	3 Months Ended
	Dec. 31, 2015
2015 Restructuring Plan [Domain]
Changes in Restructuring Reserve - 2015 Restructuring Plan [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, included within other current liabilities in the consolidated statements of financial position (in millions): Employee Severance and Termination Benefits Long-Lived Asset Impairments Other Currency Total Original Reserve $ 191 $ 183 $ 23 $ — $ 397 Utilized—cash — — — — — Utilized—noncash — (183 ) — — (183 ) Balance at September 30, 2015 $ 191 $ — $ 23 $ — $ 214 Utilized—cash (24 ) — (23 ) — (47 ) Utilized—noncash — — — (3 ) (3 ) Balance at December 31, 2015 $ 167 $ — $ — $ (3 ) $ 164

Significant Restructuring Cos33

Significant Restructuring Costs Changes in Restructuring Reserve - 2014 Restructuring Plan (Tables)	3 Months Ended
	Dec. 31, 2015
2014 Restructuring Plan
Changes in Restructuring Reserve - 2014 Restructuring Plan [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, included within other current liabilities in the consolidated statements of financial position (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 (12 ) — — — — (12 ) Utilized—noncash — — — — (3 ) (3 ) Balance at December 31, 2015 $ 106 $ — $ — $ — $ (22 ) $ 84

Significant Restructuring Cos34

Significant Restructuring Costs Changes in Restructuring Reserve - 2013 Restructuring Plan (Tables)	3 Months Ended
	Dec. 31, 2015
2013 Restructuring Plan
Changes to Restructuring Reserve - 2013 Restructuring Plan [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, included within other current liabilities in the consolidated statements of financial position (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 (12 ) — — — — (12 ) Utilized—noncash — — — — (1 ) (1 ) Balance at December 31, 2015 $ 73 $ — $ — $ — $ (18 ) $ 55

Income Taxes (Tables)

Income Taxes (Tables)	3 Months Ended
	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Tax Jurisdictions and Years Currently under Audit Exam	In the U.S., it is expected that fiscal years 2013 through 2014 will be examined by the Internal Revenue Service during 2016. Additionally, the Company is currently under exam in the following major foreign jurisdictions: Tax Jurisdiction Tax Years Covered Belgium 2010 - 2012 Brazil 2004 - 2008, 2011 - 2012 Canada 2008 - 2013 France 2002 - 2013 Germany 2007 - 2012 Italy 2006, 2011 Korea 2008 - 2012 Mexico 2010 - 2011 Spain 2013 United Kingdom 2011 - 2013

Pension and Postretirement Pl36

Pension and Postretirement Plans (Tables)	3 Months Ended
	Dec. 31, 2015
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]
Components of Net Periodic Benefit Cost	The components of the Company’s net periodic benefit costs from continuing operations associated with its defined benefit pension and postretirement plans are shown in the tables below in accordance with ASC 715, "Compensation – Retirement Benefits" (in millions): Pension Benefits U.S. Plans Three Months Ended December 31, Non-U.S. Plans Three Months Ended December 31, 2015 2014 2015 2014 Service cost $ 4 $ 8 $ 5 $ 7 Interest cost 25 30 10 12 Expected return on plan assets (47 ) (45 ) (13 ) (13 ) Net periodic benefit cost (credit) $ (18 ) $ (7 ) $ 2 $ 6 Postretirement Benefits Three Months Ended December 31, 2015 2014 Service cost $ 1 $ 1 Interest cost 1 2 Expected return on plan assets (3 ) (3 ) Net periodic benefit credit $ (1 ) $ —

Debt and Financing Arrangemen37

Debt and Financing Arrangements (Tables)	3 Months Ended
	Dec. 31, 2015
Debt Disclosure [Abstract]
Components of Net Financing Charges	The Company's net financing charges line item in the consolidated statements of income for the three month periods ended December 31, 2015 and 2014 contained the following components (in millions): Three Months Ended December 31, 2015 2014 Interest expense, net of capitalized interest costs $ 73 $ 71 Banking fees and bond cost amortization 8 6 Interest income (2 ) (3 ) Net foreign exchange results for financing activities (11 ) (3 ) Net financing charges $ 68 $ 71

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Dec. 31, 2015
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): Three Months Ended December 31, 2015 2014 Income Available to Common Shareholders Income from continuing operations $ 450 $ 481 Income from discontinued operations — 26 Basic and diluted income available to common shareholders $ 450 $ 507 Weighted Average Shares Outstanding Basic weighted average shares outstanding 647.7 661.4 Effect of dilutive securities: Stock options, unvested restricted stock and unvested performance share awards 5.1 6.6 Diluted weighted average shares outstanding 652.8 668.0 Antidilutive Securities Options to purchase common shares 0.2 0.2

Equity and Noncontrolling Int39

Equity and Noncontrolling Interests (Tables)	3 Months Ended
	Dec. 31, 2015
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, Inc. and noncontrolling interests (in millions, net of tax): Three Months Ended December 31, 2015 Three Months Ended December 31, 2014 Equity Attributable to Johnson Controls, Inc. Equity Attributable to Noncontrolling Interests Total Equity Equity Attributable to Johnson Controls, Inc. Equity Attributable to Noncontrolling Interests Total Equity Beginning balance, September 30 $ 10,376 $ 163 $ 10,539 $ 11,311 $ 251 $ 11,562 Total comprehensive income: Net income 450 20 470 507 20 527 Foreign currency translation adjustments (160 ) (9 ) (169 ) (351 ) — (351 ) Realized and unrealized losses on derivatives (1 ) — (1 ) (10 ) — (10 ) Pension and postretirement plans — — — (3 ) — (3 ) Other comprehensive loss (161 ) (9 ) (170 ) (364 ) — (364 ) Comprehensive income 289 11 300 143 20 163 Other changes in equity: Cash dividends—common stock (188 ) — (188 ) (172 ) — (172 ) Dividends attributable to noncontrolling interests — (7 ) (7 ) — (8 ) (8 ) Repurchases of common stock — — — (600 ) — (600 ) Change in noncontrolling interest share — 764 764 — — — Other, including options exercised 29 — 29 141 — 141 Ending balance, December 31 $ 10,506 $ 931 $ 11,437 $ 10,823 $ 263 $ 11,086
Changes in Redeemable Noncontrolling Interests	The following schedules present changes in the redeemable noncontrolling interests (in millions): Three Months Ended December 31, 2015 2014 Beginning balance, September 30 $ 212 $ 194 Net income 20 19 Foreign currency translation adjustments (8 ) — Realized and unrealized losses on derivatives (2 ) — Dividends (6 ) (4 ) Ending balance, December 31 $ 216 $ 209
Changes in Accumulated Other Comprehensive Income, Net of Tax	The following schedules present changes in accumulated other comprehensive income (AOCI) attributable to Johnson Controls, Inc. (in millions, net of tax): Three Months Ended December 31, 2015 2014 Foreign currency translation adjustments Balance at beginning of period $ (1,047 ) $ (248 ) Aggregate adjustment for the period (net of tax effect of $(4) and $2) (160 ) (351 ) Balance at end of period (1,207 ) (599 ) Realized and unrealized gains (losses) on derivatives Balance at beginning of period (7 ) 4 Current period changes in fair value (net of tax effect of $0 and $(5)) 2 (9 ) Reclassification to income (net of tax effect of $(1) and $0) * (3 ) (1 ) Balance at end of period (8 ) (6 ) Pension and postretirement plans Balance at beginning of period (3 ) 7 Reclassification to income (net of tax effect of $0 and $(1)) ** — (3 ) Balance at end of period (3 ) 4 Accumulated other comprehensive loss, end of period $ (1,218 ) $ (601 ) * Refer to Note 15, "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. ** Refer to Note 11, "Pension and Postretirement 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 three months ended December 31, 2014 , the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in income from discontinued operations, net of tax on the consolidated statements of income.

Derivative Instruments and He40

Derivative Instruments and Hedging Activities (Tables)	3 Months Ended
	Dec. 31, 2015
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 December 31, 2015 September 30, 2015 December 31, 2014 Copper Pounds 11,805,000 14,648,000 11,070,000 Lead Metric Tons 6,720 6,785 10,125 Aluminum Metric Tons 4,390 5,700 890 Tin Metric Tons 1,456 2,080 1,485
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 December 31, September 30, December 31, December 31, September 30, December 31, 2015 2015 2014 2015 2015 2014 Other current assets Foreign currency exchange derivatives $ 26 $ 31 $ 38 $ 21 $ 27 $ 28 Commodity derivatives 1 — — — — — Interest rate swaps — 1 — — — — Cross-currency interest rate swaps 1 5 25 — — — Other noncurrent assets Interest rate swaps 1 5 2 — — — Equity swap — — — 149 164 196 Total assets $ 29 $ 42 $ 65 $ 170 $ 191 $ 224 Other current liabilities Foreign currency exchange derivatives $ 34 $ 37 $ 49 $ 8 $ 26 $ 24 Commodity derivatives 7 7 7 — — — Cross-currency interest rate swaps 1 1 — — — — Current portion of long-term debt Fixed rate debt swapped to floating 1,202 801 125 — — — Long-term debt Foreign currency denominated debt 307 — — — — — Fixed rate debt swapped to floating 448 855 1,651 — — — Other noncurrent liabilities Interest rate swaps — — 1 — — — Total liabilities $ 1,999 $ 1,701 $ 1,833 $ 8 $ 26 $ 24
Offsetting Assets and Liabilities	The gross and net amounts of derivative assets and liabilities were as follows (in millions): Fair Value of Assets Fair Value of Liabilities December 31, September 30, December 31, December 31, September 30, December 31, 2015 2015 2014 2015 2015 2014 Gross amount recognized $ 199 $ 233 $ 289 $ 2,007 $ 1,727 $ 1,857 Gross amount eligible for offsetting (9 ) (8 ) (21 ) (9 ) (8 ) (21 ) Net amount $ 190 $ 225 $ 268 $ 1,998 $ 1,719 $ 1,836
Location and Amount of Gains and Losses Gross of Tax on Derivative Instruments and Related Hedge Items	The following tables present the location and amount of the effective portion of gains and losses gross of tax on derivative instruments and related hedge items reclassified from AOCI into the Company’s consolidated statements of income for the three months ended December 31, 2015 and 2014 and amounts recorded in AOCI net of tax in the consolidated statements of financial position (in millions): Amount of Gain (Loss) Reclassified from AOCI into Income Derivatives in ASC 815 Cash Flow Hedging Relationships Location of Gain (Loss) Reclassified from AOCI into Income Three Months Ended December 31, 2015 2014 Foreign currency exchange derivatives Cost of sales $ — $ 1 Commodity derivatives Cost of sales (4 ) — Total $ (4 ) $ 1 Derivatives in ASC 815 Cash Flow Hedging Relationships Amount of Gain (Loss) Recognized in AOCI on Derivative December 31, 2015 September 30, 2015 December 31, 2014 Foreign currency exchange derivatives $ (7 ) $ (5 ) $ (7 ) Commodity derivatives (6 ) (7 ) (5 ) Forward treasury locks 5 5 6 Total $ (8 ) $ (7 ) $ (6 ) Amount of Gain (Loss) Recognized in Income on Derivative Derivatives in ASC 815 Fair Value Hedging Relationships Location of Gain (Loss) Recognized in Income on Derivative Three Months Ended December 31, 2015 2014 Interest rate swaps Net financing charges $ (5 ) $ 2 Fixed rate debt swapped to floating Net financing charges 5 (2 ) Total $ — $ — Amount of Gain (Loss) Recognized in Income on Derivative Derivatives Not Designated as Hedging Instruments under ASC 815 Location of Gain (Loss) Recognized in Income on Derivative Three Months Ended December 31, 2015 2014 Foreign currency exchange derivatives Cost of sales $ (1 ) $ (2 ) Foreign currency exchange derivatives Net financing charges — (2 ) Equity swap Selling, general and administrative (6 ) 19 Total $ (7 ) $ 15

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Dec. 31, 2015
Fair Value Disclosures [Abstract]
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 December 31, 2015 , September 30, 2015 and December 31, 2014 (in millions): Fair Value Measurements Using: Total as of December 31, 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 $ 47 $ — $ 47 $ — Commodity derivatives 1 — 1 — Cross-currency interest rate swaps 1 — 1 — Other noncurrent assets Interest rate swaps 1 — 1 — Investments in marketable common stock 4 4 — — Equity swap 149 149 — — Total assets $ 203 $ 153 $ 50 $ — Other current liabilities Foreign currency exchange derivatives $ 42 $ — $ 42 $ — Commodity derivatives 7 — 7 — Cross-currency interest rate swaps 1 — 1 — Current portion of long-term debt Fixed rate debt swapped to floating 1,202 — 1,202 — Long-term debt Foreign currency denominated debt 307 307 — — Fixed rate debt swapped to floating 448 — 448 — Total liabilities $ 2,007 $ 307 $ 1,700 $ — 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 — 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 — 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 $ — Fair Value Measurements Using: Total as of December 31, 2014 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 $ 66 $ — $ 66 $ — Cross-currency interest rate swaps 25 — 25 — Other noncurrent assets Interest rate swaps 2 — 2 — Investments in marketable common stock 4 4 — — Equity swap 196 196 — — Total assets $ 293 $ 200 $ 93 $ — Other current liabilities Foreign currency exchange derivatives $ 73 $ — $ 73 $ — Commodity derivatives 7 — 7 — Current portion of long-term debt Fixed rate debt swapped to floating 125 — 125 — Long-term debt Fixed rate debt swapped to floating 1,651 — 1,651 — Other noncurrent liabilities Interest rate swaps 1 — 1 — Total liabilities $ 1,857 $ — $ 1,857 $ —

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Dec. 31, 2015
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Financial Information Related to Company's Reportable Segments	Financial information relating to the Company’s reportable segments is as follows (in millions): Net Sales Three Months Ended December 31, 2015 2014 Building Efficiency Systems and Service North America $ 984 $ 957 Products North America 557 558 Asia 992 501 Rest of World 423 481 2,956 2,497 Automotive Experience Seating 4,086 4,135 Interiors 147 1,148 4,233 5,283 Power Solutions 1,740 1,844 Total net sales $ 8,929 $ 9,624 Segment Income (Loss) Three Months Ended 2015 2014 Building Efficiency Systems and Service North America $ 93 $ 64 Products North America 17 44 Asia 62 49 Rest of World (5 ) — 167 157 Automotive Experience Seating 166 201 Interiors 12 33 178 234 Power Solutions 342 315 Total segment income $ 687 $ 706 Net financing charges (68 ) (71 ) Income from continuing operations before income taxes $ 619 $ 635

Financial Statements - Addition

Financial Statements - Additional Information (Detail) $ in Millions	12 Months Ended
	Sep. 30, 2012InterestInvestmentEntity	Dec. 31, 2015USD ($)Entity	Sep. 30, 2015USD ($)Entity	Dec. 31, 2014USD ($)Entity
Financial Statement Details [Line Items]
Number of VIEs where Company is Primary Beneficiary		3	3	3
Interest percentage minimum for investments in partially-owned affiliates to be accounted for by the equity method		20.00%
Number of separate investments a pre-existing VIE was reorganized into	3
Additional interests acquired | InterestInvestment	2
Third party debt agreement | $		$ 158
Loans to partially-owned affiliates | $		60
Floor guarantee | $		25
Number of VIEs in which Company was not primary beneficiary	2
Variable Interest Entity, Not Primary Beneficiary [Member]
Financial Statement Details [Line Items]
Investment balance of the Company's nonconsolidated VIEs | $		$ 62	$ 62	$ 60
Automotive Experience
Financial Statement Details [Line Items]
Number of VIEs where Company is Primary Beneficiary		2
Power Solutions
Financial Statement Details [Line Items]
Number of VIEs where Company is Primary Beneficiary		1

Financial Statements - Carrying

Financial Statements - Carrying Amounts and Classification of Assets and Liabilities for Consolidated VIEs (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Variable Interest Entity [Line Items]
Current assets	$ 10,921	$ 10,469	$ 11,862
Current liabilities	11,301	10,446	11,313
Noncurrent liabilities	8,065	8,398	8,998
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Current assets	242	281	184
Noncurrent assets	127	128	136
Total assets	369	409	320
Current liabilities	197	232	155
Noncurrent liabilities	33	34	36
Total liabilities	$ 230	$ 266	$ 191

Financial Statements New Accoun

Financial Statements New Accounting Pronouncements, Early Adoption (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets	$ 1,993	$ 1,689	$ 1,783
Other noncurrent assets	2,734	2,773	3,219
Other current liabilities	3,516	3,275	2,945
Other noncurrent liabilities	1,982	1,886	1,843
Previous Accounting Guidance [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets	2,607	2,313	2,302
Other noncurrent assets	2,195	2,227	2,801
Other current liabilities	3,562	3,324	3,019
Other noncurrent liabilities	2,011	1,915	1,870
Change in Accounting Estimate, Type [Domain]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other current assets	(614)	(624)	(519)
Other noncurrent assets	539	546	418
Other current liabilities	(46)	(49)	(74)
Other noncurrent liabilities	$ (29)	$ (29)	$ (27)

Acquisitions and Divestitures -

Acquisitions and Divestitures - Additional Information (Detail) $ in Millions	3 Months Ended			9 Months Ended
	Dec. 31, 2015USD ($)	Mar. 31, 2015	Dec. 31, 2014USD ($)	Sep. 30, 2015USD ($)
Acquisitions And Discontinued Operations [Line Items]
Cash paid for business acquisition	$ 133		$ 13
Goodwill recorded in connection with business acquisitions	151			$ 29
Sales price of divestiture	18		$ 0
Reduction in goodwill related to business divestitures	0			20
Individually Immaterial Acquisitions
Acquisitions And Discontinued Operations [Line Items]
Number of acquisitions			2
Purchase price, net of cash acquired			$ 38
Cash paid for business acquisition			9
Goodwill recorded in connection with business acquisitions			9
Building Efficiency Asia
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions	151			0
Reduction in goodwill related to business divestitures	$ 0			0
Building Efficiency Asia | Hitachi Joint Venture [Member]
Acquisitions And Discontinued Operations [Line Items]
Business Acquisition, Percentage of Voting Interests Acquired	60.00%
Payments to Acquire Interest in Joint Venture	$ 133
Purchase Price of Joint Venture	563
Cash Acquired from Acquisition	430
Goodwill recorded in connection with business acquisitions	151
Global Workplace Solutions | Brookfield Johnson Controls
Acquisitions And Discontinued Operations [Line Items]
Number Of Joint Ventures Divested		2
Building Efficiency Rest of World [Member]
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions	0			0
Reduction in goodwill related to business divestitures	0			0
Building Efficiency Rest of World [Member] | Air Distribution Technologies, Inc.
Acquisitions And Discontinued Operations [Line Items]
Adjustment to purchase price of previous acquisition			4
Goodwill adjustment related to previous acquisition			$ 5
Power Solutions
Acquisitions And Discontinued Operations [Line Items]
Goodwill recorded in connection with business acquisitions	0			0
Reduction in goodwill related to business divestitures	$ 0			$ 0

Discontinued Operations Discont

Discontinued Operations Discontinued Operations - Additional Information (Details) $ in Millions	3 Months Ended
	Dec. 31, 2015USD ($)	Mar. 31, 2015	Dec. 31, 2014USD ($)	Sep. 30, 2015USD ($)
Discontinued Operations - Additional Information [Line Items]
U.S. federal statutory income tax rate	35.00%		35.00%
Disposal Group, Including Discontinued Operation, Assets, Current	$ 0		$ 2,112	$ 55
Disposal Group, Including Discontinued Operation, Liabilities, Current	$ 0		1,706	42
Global Workplace Solutions
Discontinued Operations - Additional Information [Line Items]
Ongoing Strategic Relationship		10 years
Transaction costs, divestiture related			$ 7
Automotive Experience Interiors
Discontinued Operations - Additional Information [Line Items]
Disposal Group, Including Discontinued Operation, Assets, Current				$ 55
Global Workplace Solutions | Brookfield Johnson Controls
Discontinued Operations - Additional Information [Line Items]
Number Of Joint Ventures Divested		2

Discontinued Operations Disco48

Discontinued Operations Discontinued Operations by Disposal Group - Global Workplace Solutions (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Discontinued Operations by Disposal Group - Global Workplace Solutions [Line Items]
Income from discontinued operations attributable to noncontrolling interests, net of tax	$ 0	$ 3
Income from discontinued operations	$ 0	26
Global Workplace Solutions
Discontinued Operations by Disposal Group - Global Workplace Solutions [Line Items]
Net sales		1,042
Income from discontinued operations before income taxes		42
Provision for income taxes on discontinued operations		13
Income from discontinued operations attributable to noncontrolling interests, net of tax		3
Income from discontinued operations		$ 26

Discontinued Operations Disco49

Discontinued Operations Discontinued Operations - Assets and Liabilities Held for Sale, Specific Transactions (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Assets and Liabilities Held for Sale, Specific Transactions [Line Items]
Cash and cash equivalents		$ 19
Accounts receivable - net		1,265
Inventories		220
Other current assets		234
Property, plant and equipment - net		593
Goodwill		266
Other intangible assets - net		38
Investments in partially-owned affiliates		71
Other noncurrent assets		90
Assets held for sale		2,796
Short-term debt		6
Accounts payable		1,169
Accrued compensation and benefits		118
Other current liabilities		413
Liabilities held for sale		1,706
Interiors
Assets and Liabilities Held for Sale, Specific Transactions [Line Items]
Cash and cash equivalents		0
Accounts receivable - net		509
Inventories		214
Other current assets		177
Property, plant and equipment - net		555
Goodwill		21
Other intangible assets - net		4
Investments in partially-owned affiliates		71
Other noncurrent assets		33
Assets held for sale		1,584
Short-term debt		0
Accounts payable		555
Accrued compensation and benefits		16
Other current liabilities		160
Liabilities held for sale		731
Global Workplace Solutions
Assets and Liabilities Held for Sale, Specific Transactions [Line Items]
Cash and cash equivalents		19
Accounts receivable - net		756
Inventories		6
Other current assets		57
Property, plant and equipment - net		38
Goodwill		245
Other intangible assets - net		34
Investments in partially-owned affiliates		0
Other noncurrent assets		57
Assets held for sale		1,212
Short-term debt		6
Accounts payable		614
Accrued compensation and benefits		102
Other current liabilities		253
Liabilities held for sale		$ 975
Automotive Experience Interiors
Assets and Liabilities Held for Sale, Specific Transactions [Line Items]
Liabilities held for sale	$ 42

Percentage-of-Completion Cont50

Percentage-of-Completion Contracts (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Disclosure Percentage Of Completion Contracts Additional Information [Abstract]
Costs and earnings in excess of billings related to contracts	$ 410	$ 453	$ 498
Billing in excess of costs and earnings on uncompleted contracts	$ 337	$ 340	$ 339

Inventories - Schedule of Inven

Inventories - Schedule of Inventories (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Inventory Disclosure [Abstract]
Raw materials and supplies	$ 1,204	$ 1,084	$ 1,096
Work-in-process	414	369	382
Finished goods	1,151	924	961
Inventories	$ 2,769	$ 2,377	$ 2,439

Goodwill and Other Intangible52

Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2015	Sep. 30, 2015
Goodwill [Roll Forward]
Beginning Balance	$ 6,824	$ 7,010
Business Acquisitions	151	29
Business Divestitures	0	(20)
Currency Translation and Other	(57)	(195)
Ending Balance	6,918	6,824
Building Efficiency Systems and Service North America
Goodwill [Roll Forward]
Beginning Balance	978	983
Business Acquisitions	0	0
Business Divestitures	0	(2)
Currency Translation and Other	0	(3)
Ending Balance	978	978
Building Efficiency Products North America
Goodwill [Roll Forward]
Beginning Balance	1,701	1,689
Business Acquisitions	0	29
Business Divestitures	0	(14)
Currency Translation and Other	(2)	(3)
Ending Balance	1,699	1,701
Building Efficiency Asia
Goodwill [Roll Forward]
Beginning Balance	389	404
Business Acquisitions	151	0
Business Divestitures	0	0
Currency Translation and Other	(8)	(15)
Ending Balance	532	389
Building Efficiency Rest of World [Member]
Goodwill [Roll Forward]
Beginning Balance	310	332
Business Acquisitions	0	0
Business Divestitures	0	0
Currency Translation and Other	(7)	(22)
Ending Balance	303	310
Seating
Goodwill [Roll Forward]
Beginning Balance	2,364	2,482
Business Acquisitions	0	0
Business Divestitures	0	(4)
Currency Translation and Other	(32)	(114)
Ending Balance	2,332	2,364
Power Solutions
Goodwill [Roll Forward]
Beginning Balance	1,082	1,120
Business Acquisitions	0	0
Business Divestitures	0	0
Currency Translation and Other	(8)	(38)
Ending Balance	$ 1,074	$ 1,082

Goodwill and Other Intangible53

Goodwill and Other Intangible Assets - Goodwill Additional Information (Details) - USD ($) $ in Millions	Oct. 01, 2015	Dec. 31, 2014
Interiors
Goodwill [Line Items]
Accumulated goodwill impairment		$ 430
Building Efficiency Rest of World [Member]
Goodwill [Line Items]
Accumulated goodwill impairment		$ 47
Building Efficiency
Goodwill [Line Items]
Accumulated goodwill impairment	$ 0

Goodwill and Other Intangible54

Goodwill and Other Intangible Assets - Other Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Intangible Assets [Line Items]
Gross carrying amount, total intangible assets	$ 1,996	$ 1,904	$ 1,942
Net, Total Intangible Assets	1,583	1,516	1,600
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	1,454	1,362	1,397
Accumulated Amortization	(413)	(388)	(342)
Net, Total Amortized Intangible Assets	1,041	974	1,055
Patented Technology
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	79	80	85
Accumulated Amortization	(60)	(59)	(57)
Net, Total Amortized Intangible Assets	19	21	28
Customer Relationships
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	1,004	975	1,000
Accumulated Amortization	(221)	(206)	(172)
Net, Total Amortized Intangible Assets	783	769	828
Miscellaneous
Finite-Lived Intangible Assets, Gross [Abstract]
Gross Carrying Amount	371	307	312
Accumulated Amortization	(132)	(123)	(113)
Net, Total Amortized Intangible Assets	239	184	199
Trademarks
Indefinite-Lived Intangible Assets (Excluding Goodwill) [Abstract]
Carrying Amount, Gross and Net	$ 542	$ 542	$ 545

Goodwill and Other Intangible55

Goodwill and Other Intangible Assets - Other Intangible Assets Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 24	$ 24
Future amortization expense, 2017	98
Future amortization expense, 2018	96
Future amortization expense, 2019	81
Future amortization expense, 2020	71
Future amortization expense, 2021	$ 64

Product Warranties - Additional

Product Warranties - Additional Information (Detail)	3 Months Ended
	Dec. 31, 2015
Product Warranties Disclosures [Abstract]
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

Product Warranties - Changes in

Product Warranties - Changes in Carrying Amount of Product Warranty liability (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 300	$ 319
Accruals for warranties issued during the period	95	67
Product Warranty Accrual Additions From Business Acquisition And Divestitures	35	0
Accruals related to pre-existing warranties (including changes in estimates)	(2)	1
Settlements made (in cash or in kind) during the period	(78)	(69)
Currency translation	(1)	(3)
Balance at end of period	$ 349	$ 315

Significant Restructuring Cos58

Significant Restructuring Costs Changes in Restructuring Reserve - 2015 Restructuring Plan (Details) - 2015 Restructuring Plan [Domain] - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		$ 397
Payments for Restructuring	$ (47)	0
Restructuring Reserve, Settled without Cash	(3)	(183)
Restructuring Reserve	164	214
Employee Severance
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		191
Payments for Restructuring	(24)	0
Restructuring Reserve, Settled without Cash	0	0
Restructuring Reserve	167	191
Fixed Asset Impairment
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		183
Payments for Restructuring	0	0
Restructuring Reserve, Settled without Cash	0	(183)
Restructuring Reserve	0	0
Other Restructuring
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		23
Payments for Restructuring	(23)	0
Restructuring Reserve, Settled without Cash	0	0
Restructuring Reserve	0	23
Currency Translation
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		0
Payments for Restructuring	0	0
Restructuring Reserve, Settled without Cash	(3)	0
Restructuring Reserve	$ (3)	0
Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		397
Automotive Experience Seating [Member] | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		182
Corporate Segment | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		166
Building Efficiency Rest of World [Member] | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		27
Power Solutions | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		11
Building Efficiency Asia | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		7
Building Efficiency Systems and Service North America | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		2
Building Efficiency Products North America | Continuing Operations
Changes in Restructuring Reserve - 2015 Restructuring Plan [Line Items]
Restructuring Charges		$ 2

Significant Restructuring Cos59

Significant Restructuring Costs Changes in Restructuring Reserve - 2014 Restructuring Plan (Details) - 2014 Restructuring Plan - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2014
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			$ 377
Restructuring Reserve, Beginning Balance	$ 99	$ 182
Payments for Restructuring	12	70	8
Restructuring Reserve, Settled without Cash	(3)	(13)	(187)
Restructuring Reserve, Ending Balance	84	99	182
Employee Severance
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			191
Restructuring Reserve, Beginning Balance	118	183
Payments for Restructuring	12	65	8
Restructuring Reserve, Settled without Cash	0	0	0
Restructuring Reserve, Ending Balance	106	118	183
Fixed Asset Impairment
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			134
Restructuring Reserve, Beginning Balance	0	0
Payments for Restructuring	0	0	0
Restructuring Reserve, Settled without Cash	0	0	(134)
Restructuring Reserve, Ending Balance	0	0	0
Goodwill Impairment
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			47
Restructuring Reserve, Beginning Balance	0	0
Payments for Restructuring	0	0	0
Restructuring Reserve, Settled without Cash	0	0	(47)
Restructuring Reserve, Ending Balance	0	0	0
Other Restructuring
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			5
Restructuring Reserve, Beginning Balance	0	5
Payments for Restructuring	0	5	0
Restructuring Reserve, Settled without Cash	0	0	0
Restructuring Reserve, Ending Balance	0	0	5
Currency Translation
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			0
Restructuring Reserve, Beginning Balance	(19)	(6)
Payments for Restructuring	0	0	0
Restructuring Reserve, Settled without Cash	(3)	(13)	(6)
Restructuring Reserve, Ending Balance	$ (22)	$ (19)	(6)
Continuing Operations
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			324
Building Efficiency Systems and Service North America | Continuing Operations
Changes in Restructuring Reserve - 2014 Restructuring Plan [Line Items]
Restructuring Charges			$ 12

Significant Restructuring Cos60

Significant Restructuring Costs Changes to Restructuring Reserve - 2013 Restructuring Plan (Details) - 2013 Restructuring Plan - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				$ (985)
Restructuring Reserve, Beginning Balance	$ 68	$ 191	$ 342
Payments for Restructuring	12	113	147	26
Restructuring Reserve, Settled without Cash	(1)	(10)	(11)	(586)
Restructuring Reserve, Ending Balance	55	68	191	342
Employee Severance
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(392)
Restructuring Reserve, Beginning Balance	85	198	335
Payments for Restructuring	12	113	144	26
Restructuring Reserve, Settled without Cash	0	0	0	0
Restructuring Reserve, Ending Balance	73	85	198	335
Fixed Asset Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(156)
Restructuring Reserve, Beginning Balance	0	0	0
Payments for Restructuring	0	0	0	0
Restructuring Reserve, Settled without Cash	0	0	0	(156)
Restructuring Reserve, Ending Balance	0	0	0	0
Goodwill Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(430)
Restructuring Reserve, Beginning Balance	0	0	0
Payments for Restructuring	0	0	0	0
Restructuring Reserve, Settled without Cash	0	0	0	(430)
Restructuring Reserve, Ending Balance	0	0	0	0
Other Restructuring
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(7)
Restructuring Reserve, Beginning Balance	0	0	3
Payments for Restructuring	0	0	3	0
Restructuring Reserve, Settled without Cash	0	0	0	(4)
Restructuring Reserve, Ending Balance	0	0	0	3
Currency Translation
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				0
Restructuring Reserve, Beginning Balance	(17)	(7)	4
Payments for Restructuring	0	0	0	0
Restructuring Reserve, Settled without Cash	(1)	(10)	(11)	(4)
Restructuring Reserve, Ending Balance	$ (18)	$ (17)	(7)	4
Transfer To Held for Sale [Member]
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			24	31
Transfer To Held for Sale [Member] | Employee Severance
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			24	31
Transfer To Held for Sale [Member] | Fixed Asset Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			0	0
Transfer To Held for Sale [Member] | Goodwill Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			0	0
Transfer To Held for Sale [Member] | Other Restructuring
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			0	0
Transfer To Held for Sale [Member] | Currency Translation
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve			0	0
Continuing Operations
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(903)
Continuing Operations | Building Efficiency Products North America
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				(28)
Continuing Operations | Building Efficiency Systems and Service North America
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Original Reserve				$ (35)
Transfer From Held for Sale [Member]
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			31
Transfer From Held for Sale [Member] | Employee Severance
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			31
Transfer From Held for Sale [Member] | Fixed Asset Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			0
Transfer From Held for Sale [Member] | Goodwill Impairment
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			0
Transfer From Held for Sale [Member] | Other Restructuring
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			0
Transfer From Held for Sale [Member] | Currency Translation
Changes to Restructuring Reserve - 2013 Restructuring Plan [Line Items]
Restructuring Reserve, Accrual Adjustment			$ 0

Significant Restructuring Cos61

Significant Restructuring Costs - Additional Information (Detail) $ in Millions	3 Months Ended	12 Months Ended			36 Months Ended
	Dec. 31, 2015USD ($)EmployeesPlant	Sep. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Sep. 30, 2013USD ($)	Sep. 30, 2015USD ($)EmployeesPlant
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					13,900
Number of employees severed | Employees	9,400
Number of plants to be closed | Plant					19
Plants closed | Plant	9
Corporate Segment
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					100
Automotive Experience
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					8,200
Number of plants to be closed | Plant					15
Power Solutions
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					900
Building Efficiency
Restructuring Cost and Reserve [Line Items]
Number of employees to be severed | Employees					4,700
Number of plants to be closed | Plant					4
2015 Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	$ (47)	$ 0
Original Reserve		(397)
Restructuring Reserve, Settled without Cash	(3)	(183)
Restructuring Reserve	164	214			$ 214
2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(397)
2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(12)	(70)	$ (8)
Original Reserve			(377)
Restructuring Reserve, Settled without Cash	(3)	(13)	(187)
Restructuring Reserve	84	99	182		99
2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(324)
2014 Restructuring Plan | Automotive Experience Electronics | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(53)
2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(12)	(113)	(147)	$ (26)
Original Reserve				(985)
Restructuring Reserve, Settled without Cash	(1)	(10)	(11)	(586)
Restructuring Reserve	55	68	191	342	68
2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(903)
2013 Restructuring Plan | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(82)
2013 Restructuring Plan | Global Workplace Solutions | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(54)
2013 Restructuring Plan | Automotive Experience Electronics | Discontinued Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(28)
Building Efficiency Systems and Service North America | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(2)
Building Efficiency Systems and Service North America | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(12)
Building Efficiency Systems and Service North America | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(35)
Building Efficiency Products North America | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(2)
Building Efficiency Products North America | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(7)
Building Efficiency Products North America | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(28)
Automotive Experience Interiors | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(130)
Automotive Experience Interiors | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(560)
Automotive Experience Seating [Member] | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(182)
Automotive Experience Seating [Member] | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(29)
Automotive Experience Seating [Member] | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(152)
Building Efficiency Rest of World [Member] | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(27)
Building Efficiency Rest of World [Member] | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(119)
Building Efficiency Rest of World [Member] | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(70)
Power Solutions | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(11)
Power Solutions | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(16)
Power Solutions | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(36)
Corporate Segment | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(166)
Corporate Segment | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(7)
Corporate Segment | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(17)
Building Efficiency Asia | 2015 Restructuring Plan [Domain] | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve		(7)
Building Efficiency Asia | 2014 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve			(4)
Building Efficiency Asia | 2013 Restructuring Plan | Continuing Operations
Restructuring Cost and Reserve [Line Items]
Original Reserve				(5)
Employee Severance | 2015 Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(24)	0
Original Reserve		(191)
Restructuring Reserve, Settled without Cash	0	0
Restructuring Reserve	167	191			191
Employee Severance | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(12)	(65)	(8)
Original Reserve			(191)
Restructuring Reserve, Settled without Cash	0	0	0
Restructuring Reserve	106	118	183		118
Employee Severance | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(12)	(113)	(144)	(26)
Original Reserve				(392)
Restructuring Reserve, Settled without Cash	0	0	0	0
Restructuring Reserve	73	85	198	335	85
Fixed Asset Impairment | 2015 Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0
Original Reserve		(183)
Restructuring Reserve, Settled without Cash	0	(183)
Restructuring Reserve	0	0			0
Fixed Asset Impairment | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0	0
Original Reserve			(134)
Restructuring Reserve, Settled without Cash	0	0	(134)
Restructuring Reserve	0	0	0		0
Fixed Asset Impairment | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0	0	0
Original Reserve				(156)
Restructuring Reserve, Settled without Cash	0	0	0	(156)
Restructuring Reserve	0	0	0	0	0
Other Restructuring | 2015 Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	(23)	0
Original Reserve		(23)
Restructuring Reserve, Settled without Cash	0	0
Restructuring Reserve	0	23			23
Other Restructuring | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	(5)	0
Original Reserve			(5)
Restructuring Reserve, Settled without Cash	0	0	0
Restructuring Reserve	0	0	5		0
Other Restructuring | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0	(3)	0
Original Reserve				(7)
Restructuring Reserve, Settled without Cash	0	0	0	(4)
Restructuring Reserve	0	0	0	3	0
Currency Translation | 2015 Restructuring Plan [Domain]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0
Original Reserve		0
Restructuring Reserve, Settled without Cash	(3)	0
Restructuring Reserve	(3)	0			0
Currency Translation | 2014 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0	0
Original Reserve			0
Restructuring Reserve, Settled without Cash	(3)	(13)	(6)
Restructuring Reserve	(22)	(19)	(6)		(19)
Currency Translation | 2013 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring	0	0	0	0
Original Reserve				0
Restructuring Reserve, Settled without Cash	(1)	(10)	(11)	(4)
Restructuring Reserve	$ (18)	$ (17)	$ (7)	$ 4	$ (17)

Income Taxes - Tax Jurisdiction

Income Taxes - Tax Jurisdictions and Years Currently under Audit Exam (Details) $ in Millions	3 Months Ended
	Dec. 31, 2015USD ($)
Income Tax Examination [Line Items]
Estimated benefit to tax expense	$ 50
Belgium | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,010
Belgium | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,012
Canada | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,008
Canada | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,013
France | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,002
France | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,013
Germany | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,007
Germany | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,012
Italy | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,006
Italy | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,011
Korea | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,008
Korea | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,012
Mexico | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,010
Mexico | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,011
SPAIN | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,013
United Kingdom | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,011
United Kingdom | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,013
United States | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,013
United States | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,014
Examination Period One | Brazil | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,004
Examination Period One | Brazil | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,008
Examination Period Two | Brazil | Earliest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,011
Examination Period Two | Brazil | Latest tax year under exam
Income Tax Examination [Line Items]
Tax years currently under audit exam	2,012

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Income Taxes, Additional Information [Line Items]
Effective income tax rate	21.00%	19.00%
U.S. federal statutory income tax rate	35.00%	35.00%
Gross tax effected unrecognized tax benefits			$ 1,235
Amount of unrecognized tax benefits which may impact effective tax rate			1,180
Total net accrued interest, net of tax benefit			$ 41
Number of months for conclusion of tax exam, appeal or litigation	12 months
Estimated benefit to tax expense	$ 50

Pension and Postretirement Pl64

Pension and Postretirement Plans - Components of Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
United States Pension Plan of US Entity
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 8
Interest cost	25	30
Expected return on plan assets	(47)	(45)
Net periodic benefit cost (credit)	(18)	(7)
Foreign Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	5	7
Interest cost	10	12
Expected return on plan assets	(13)	(13)
Net periodic benefit cost (credit)	2	6
Other Postretirement Benefit Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	1
Interest cost	1	2
Expected return on plan assets	(3)	(3)
Net periodic benefit cost (credit)	$ (1)	$ 0

Debt and Financing Arrangemen65

Debt and Financing Arrangements - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
$35M revolving credit facility
Debt Instrument [Line Items]
Credit facility, expired	$ 35
Credit facility	35
Credit facility, amount drawn	0
$100M revolving credit facility
Debt Instrument [Line Items]
Credit facility, expired	100
Credit facility	100
Credit facility, amount drawn	0
$500M floating rate term loan, maturing Sep 2015
Debt Instrument [Line Items]
Credit facility			$ 500
Length of Credit Facility			9 months
$100M floating rate term loan, maturing Sep 2015
Debt Instrument [Line Items]
Credit facility			$ 100
Extinguishment of Debt, Amount		$ 100
Length of Credit Facility			9 months
$500M floating rate term loan, maturing Sep 2014
Debt Instrument [Line Items]
Extinguishment of Debt, Amount		$ 500
$125 Million USD floating rate term loan maturing in September 2016 [Domain]
Debt Instrument [Line Items]
Credit facility	$ 125
Length of Credit Facility	9 months
$200 Million USD floating rate term loan maturing in September 2016 [Domain]
Debt Instrument [Line Items]
Credit facility	$ 200
Length of Credit Facility	9 months

Debt and Financing Arrangemen66

Debt and Financing Arrangements - Components of Net Financing Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Debt Disclosure [Abstract]
Interest expense, net of capitalized interest costs	$ 73	$ 71
Banking fees and bond cost amortization	8	6
Interest income	(2)	(3)
Net foreign exchange results for financing activities	(11)	(3)
Net financing charges	$ 68	$ 71

Earnings Per Share - Earnings P

Earnings Per Share - Earnings Per Share (Detail) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Income from continuing operations	$ 450	$ 481
Income from discontinued operations	0	26
Basic and diluted income available to common shareholders	$ (450)	$ (507)
Weighted Average Shares Outstanding
Basic weighted average shares outstanding	647.7	661.4
Effect of dilutive securities:
Stock options and unvested restricted stock	5.1	6.6
Diluted weighted average shares outstanding	652.8	668
Antidilutive Securities
Options to purchase common shares	0.2	0.2

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Detail) - $ / shares	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Earnings Per Share [Abstract]
Dividend declared	$ 0.29	$ 0.26

Equity and Noncontrolling Int69

Equity and Noncontrolling Interests - Equity Attributable to Johnson Controls, Inc. and Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 10,376
Beginning balance	163
Beginning balance	10,539
Net income attributable to Johnson Controls, Inc.	450	$ 507
Foreign currency translation adjustments	(177)	(351)
Realized and unrealized losses on derivatives	(3)	(10)
Pension and postretirement plans	0	(3)
Other comprehensive loss	(180)	(364)
Comprehensive income attributable to Johnson Controls, Inc.	289	143
Comprehensive income attributable to noncontrolling interests	21	39
Total comprehensive income	310	182
Ending balance	10,506	10,823
Ending balance	931	263
Ending balance	11,437	11,086
Equity Attributable to Johnson Controls, Inc
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	10,376	11,311
Net income attributable to Johnson Controls, Inc.	450	507
Foreign currency translation adjustments	(160)	(351)
Realized and unrealized losses on derivatives	(1)	(10)
Pension and postretirement plans	0	(3)
Other comprehensive loss	(161)	(364)
Comprehensive income attributable to Johnson Controls, Inc.	289	143
Cash dividends - common stock	(188)	(172)
Dividends attributable to noncontrolling interests	0	0
Repurchases of common stock	0	(600)
Noncontrolling Interest, Increase from Business Combination	0	0
Other, including options exercised	29	141
Ending balance	10,506	10,823
Nonredeemable Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling Interest, Increase from Business Combination	764	0
Total Equity Excluding Redeemable Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling Interest, Increase from Business Combination	764	0
Equity Attributable to Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	163	251
Income attributable to noncontrolling interests	20	20
Foreign currency translation adjustments	(9)	0
Realized and unrealized losses on derivatives	0	0
Pension and postretirement plans	0	0
Other comprehensive loss	(9)	0
Comprehensive income attributable to noncontrolling interests	11	20
Cash dividends - common stock	0	0
Dividends attributable to noncontrolling interests	(7)	(8)
Repurchases of common stock	0	0
Other, including options exercised	0	0
Ending balance	931	263
Total Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	10,539	11,562
Net income	470	527
Foreign currency translation adjustments	(169)	(351)
Realized and unrealized losses on derivatives	(1)	(10)
Pension and postretirement plans	0	(3)
Other comprehensive loss	(170)	(364)
Total comprehensive income	300	163
Cash dividends - common stock	(188)	(172)
Dividends attributable to noncontrolling interests	(7)	(8)
Repurchases of common stock	0	(600)
Other, including options exercised	29	141
Ending balance	$ 11,437	$ 11,086

Equity and Noncontrolling Int70

Equity and Noncontrolling Interests Equity and Noncontrolling Interests - Additional Information (Details) $ in Millions	Dec. 31, 2013USD ($)
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	$ 3,650
Authorization in November 2013
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	$ 3,000

Equity and Noncontrolling Int71

Equity and Noncontrolling Interests - Changes in Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Equity Attributable to Redeemable Noncontrolling Interest [Roll Forward]
Beginning balance	$ 212
Ending balance	216	$ 209
Redeemable Noncontrolling Interests [Member]
Stockholders' Equity Attributable to Redeemable Noncontrolling Interest [Roll Forward]
Beginning balance	212	194
Net income	20	19
Foreign currency translation adjustments	(8)	0
Realized and unrealized losses on derivatives	(2)	0
Dividends	(6)	(4)
Ending balance	$ 216	$ 209

Equity and Noncontrolling Int72

Equity and Noncontrolling Interests - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, end of period		$ (1,218)	$ (601)	$ (1,057)
Realized and unrealized gains (losses) on derivatives
Current period changes in fair value		(3)	(10)
Foreign Currency Translation Adjustments
Foreign currency translation adjustments
Balance at beginning of period		(1,047)	(248)
Aggregate adjustment for the period		(160)	(351)
Balance at end of period		(1,207)	(599)
Aggregate adjustment for period, tax		(4)	2
Realized and Unrealized Gains (Losses) on Derivatives
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period		(7)	4
Current period changes in fair value		2	(9)
Reclassification to income		(3)	(1)
Balance at end of period		(8)	(6)
Current period changes in fair value, derivatives, tax		0	(5)
Reclassification to income, derivatives, tax	[1]	(1)	0
Pension And Postretirement Plans
Pension and postretirement plans
Balance at beginning of period		(3)	7
Reclassification to income		0	(3)
Balance at end of period		(3)	4
Reclassification to income, pension and postretirement, tax	[2]	$ 0	$ (1)
[1]	Refer to Note 15, "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
[2]	Refer to Note 11, "Pension and Postretirement 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 three months ended December 31, 2014, the amounts reclassified from AOCI into income for pension and postretirement plans were primarily recorded in income from discontinued operations, net of tax on the consolidated statements of income.

Derivative Instruments and He73

Derivative Instruments and Hedging Activities - Outstanding commodity hedge contracts (Detail)	Dec. 31, 2015Tlb	Sep. 30, 2015Tlb	Dec. 31, 2014Tlb
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Pounds of Copper | lb	11,805,000	14,648,000	11,070,000
Metric Tons of Lead	6,720	6,785	10,125
Metric Tons of Aluminum	4,390	5,700	890
Metric Tons of Tin	1,456	2,080	1,485

Derivative Instruments and He74

Derivative Instruments and Hedging Activities - Location and Fair Values of Derivative Instruments and Hedging Activities (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Derivative Instruments [Line Items]
Derivative assets	$ 199	$ 233	$ 289
Derivative liabilities	2,007	1,727	1,857
Designated as Hedging Instrument
Derivative Instruments [Line Items]
Derivative assets	29	42	65
Derivative liabilities	1,999	1,701	1,833
Designated as Hedging Instrument | Other Current Assets | Foreign Currency Exchange Derivatives
Derivative Instruments [Line Items]
Derivative assets	26	31	38
Designated as Hedging Instrument | Other Current Assets | Commodity Derivatives
Derivative Instruments [Line Items]
Derivative assets	1	0	0
Designated as Hedging Instrument | Other Current Assets | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	0	1	0
Designated as Hedging Instrument | Other Current Assets | Cross-Currency Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	1	5	25
Designated as Hedging Instrument | Other Noncurrent Assets | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	1	5	2
Designated as Hedging Instrument | Other Noncurrent Assets | Equity swap
Derivative Instruments [Line Items]
Derivative assets	0	0	0
Designated as Hedging Instrument | Other Current Liabilities | Foreign Currency Exchange Derivatives
Derivative Instruments [Line Items]
Derivative liabilities	34	37	49
Designated as Hedging Instrument | Other Current Liabilities | Commodity Derivatives
Derivative Instruments [Line Items]
Derivative liabilities	7	7	7
Designated as Hedging Instrument | Other Current Liabilities | Cross-Currency Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative liabilities	1	1	0
Designated as Hedging Instrument | Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Derivative Instruments [Line Items]
Derivative liabilities	1,202	801	125
Designated as Hedging Instrument | Long-Term Debt | Fixed Rate Debt Swapped to Floating
Derivative Instruments [Line Items]
Derivative liabilities	448	855	1,651
Designated as Hedging Instrument | Long-Term Debt | Foreign Currency Denominated Debt [Member]
Derivative Instruments [Line Items]
Derivative liabilities	307	0	0
Designated as Hedging Instrument | Other Noncurrent Liabilities | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative liabilities	0	0	1
Not Designated as Hedging Instrument
Derivative Instruments [Line Items]
Derivative assets	170	191	224
Derivative liabilities	8	26	24
Not Designated as Hedging Instrument | Other Current Assets | Foreign Currency Exchange Derivatives
Derivative Instruments [Line Items]
Derivative assets	21	27	28
Not Designated as Hedging Instrument | Other Current Assets | Commodity Derivatives
Derivative Instruments [Line Items]
Derivative assets	0	0	0
Not Designated as Hedging Instrument | Other Current Assets | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	0	0	0
Not Designated as Hedging Instrument | Other Current Assets | Cross-Currency Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	0	0	0
Not Designated as Hedging Instrument | Other Noncurrent Assets | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative assets	0	0	0
Not Designated as Hedging Instrument | Other Noncurrent Assets | Equity swap
Derivative Instruments [Line Items]
Derivative assets	149	164	196
Not Designated as Hedging Instrument | Other Current Liabilities | Foreign Currency Exchange Derivatives
Derivative Instruments [Line Items]
Derivative liabilities	8	26	24
Not Designated as Hedging Instrument | Other Current Liabilities | Commodity Derivatives
Derivative Instruments [Line Items]
Derivative liabilities	0	0	0
Not Designated as Hedging Instrument | Other Current Liabilities | Cross-Currency Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative liabilities	0	0	0
Not Designated as Hedging Instrument | Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Derivative Instruments [Line Items]
Derivative liabilities	0	0	0
Not Designated as Hedging Instrument | Long-Term Debt | Fixed Rate Debt Swapped to Floating
Derivative Instruments [Line Items]
Derivative liabilities	0	0	0
Not Designated as Hedging Instrument | Long-Term Debt | Foreign Currency Denominated Debt [Member]
Derivative Instruments [Line Items]
Derivative liabilities	0	0	0
Not Designated as Hedging Instrument | Other Noncurrent Liabilities | Interest Rate Swaps
Derivative Instruments [Line Items]
Derivative liabilities	$ 0	$ 0	$ 0

Derivative Instruments and He75

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Offsetting Derivative Assets and Liabilities [Abstract]
Gross amount recognized, derivative assets	$ 199	$ 233	$ 289
Gross amount recognized, derivative liabilities	2,007	1,727	1,857
Gross amount eligible for offsetting, derivative assets	(9)	(8)	(21)
Gross amount eligible for offsetting, derivative liabilities	(9)	(8)	(21)
Net derivative amount, derivative assets	190	225	268
Net derivative amount, derivative liabilities	$ 1,998	$ 1,719	$ 1,836

Derivative Instruments and He76

Derivative Instruments and Hedging Activities - Location and Amount of Gains and Losses on Derivative Instruments and Related Hedge Items (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Gain (Loss) Recognized in Income, Derivative not Recognized as Hedge	$ (7)	$ 15
Foreign Currency Exchange Derivatives | Cost of Sales
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Gain (Loss) Recognized in Income, Derivative not Recognized as Hedge	(1)	(2)
Foreign Currency Exchange Derivatives | Net Financing Charges
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Gain (Loss) Recognized in Income, Derivative not Recognized as Hedge	0	(2)
Equity swap | Selling, General And Administrative
Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Gain (Loss) Recognized in Income, Derivative not Recognized as Hedge	(6)	19
Cash Flow Hedging
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Reclassified from AOCI into Income	(4)	1
Amount of Gain (Loss) Recognized in AOCI on Derivative	(8)	(6)	$ (7)
Cash Flow Hedging | Foreign Currency Exchange Derivatives
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Recognized in AOCI on Derivative	(7)	(7)	(5)
Cash Flow Hedging | Foreign Currency Exchange Derivatives | Cost of Sales
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Reclassified from AOCI into Income	0	1
Cash Flow Hedging | Commodity Derivatives
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Recognized in AOCI on Derivative	(6)	(5)	(7)
Cash Flow Hedging | Commodity Derivatives | Cost of Sales
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Reclassified from AOCI into Income	(4)	0
Cash Flow Hedging | Treasury Lock
Cash Flow Hedges Derivative Instruments at Fair Value, Net [Abstract]
Amount of Gain (Loss) Recognized in AOCI on Derivative	5	6	$ 5
Fair Value Hedging
Fair Value Hedge [Abstract]
Gain (Loss) Recognized in Income, Fair Value Hedge	0	0
Fair Value Hedging | Interest Rate Swaps | Net Financing Charges
Fair Value Hedge [Abstract]
Gain (Loss) Recognized in Income, Fair Value Hedge	(5)	2
Fair Value Hedging | Fixed Rate Debt Swapped to Floating | Net Financing Charges
Fair Value Hedge [Abstract]
Gain (Loss) Recognized in Income, Fair Value Hedge	$ 5	$ (2)

Derivative Instruments and He77

Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - Fixed Rate Bonds (Details) $ in Millions	Dec. 31, 2015Swap	Sep. 30, 2015Swap	Dec. 31, 2014Swap	Jun. 30, 2014USD ($)Swap	Sep. 30, 2013USD ($)Swap
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held	12	12	13
7.7% due 2015 | Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held					1
Derivative, Amount of Hedged Item | $					$ 125
Debt Instrument, Interest Rate, Stated Percentage					7.70%
5.5% due 2016 | Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held					4
Derivative, Amount of Hedged Item | $					$ 800
Debt Instrument, Interest Rate, Stated Percentage					5.50%
2.6% due 2017 | Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held				4
Derivative, Amount of Hedged Item | $				$ 400
Debt Instrument, Interest Rate, Stated Percentage				2.60%
1.4% due 2018 | Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held				3
Derivative, Amount of Hedged Item | $				$ 300
Debt Instrument, Interest Rate, Stated Percentage				1.40%
7.125% due 2017 | Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held				1
Derivative, Amount of Hedged Item | $				$ 150
Debt Instrument, Interest Rate, Stated Percentage				7.125%

Derivative Instruments and He78

Derivative Instruments and Hedging Activities - Additional Information (Detail) ¥ in Billions	3 Months Ended
	Dec. 31, 2015USD ($)Swap	Dec. 31, 2014USD ($)Swap	Sep. 30, 2005USD ($)Agreement	Dec. 31, 2015JPY (¥)Swap	Sep. 30, 2015USD ($)Swap	Sep. 30, 2015JPY (¥)Swap	Dec. 31, 2014JPY (¥)Swap	Mar. 31, 2006Agreement
Derivative [Line Items]
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	12	13		12	12	12	13
Number of forward treasury lock agreements | Agreement			3
Notional amount of forward treasury lock agreements, total			$ 1,300,000,000
Types Of Notes Forward Treasury Lock Agreements Fixed Portion Of Future Interest Cost			5-year, 10-year and 30-year notes
Number of forward treasury lock agreements terminated | Agreement								3
Collateral posted	$ 0	$ 0			$ 0
Amount of gains (losses) recognized in CTA on the effective portion of outstanding net investment hedges	0	15,000,000			$ 2,000,000
Gains (losses) reclassified from CTA to income for the Company's outstanding net investment hedges	0	0
Gains (losses) recognized in income for the ineffective portion of cash flow hedges	$ 0	$ 0
Cross-Currency Interest Rate Swaps
Derivative [Line Items]
Number of fixed to floating interest rate swaps outstanding | Swap	3	4		3	4	4	4
Cross-currency interest rate swaps outstanding | ¥				¥ 15		¥ 20	¥ 20
Foreign Currency Denominated Debt [Member]
Derivative [Line Items]
Cross-currency interest rate swaps outstanding | ¥				¥ 37		¥ 0	¥ 0
Common stock shares
Derivative [Line Items]
Derivative, Amount of Hedged Item	$ 3,800,000	$ 4,100,000			$ 4,000,000

Fair Value Measurements - Asset

Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	$ 203	$ 237	$ 293
Liabilities, Fair Value Disclosure, Recurring	2,007	1,727	1,857
Other Current Assets | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	47	58	66
Other Current Assets | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1	5	25
Other Current Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring		1
Other Current Assets | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1
Other Noncurrent Assets | Common stock shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	4	4	4
Other Noncurrent Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1	5	2
Other Noncurrent Assets | Equity swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	149	164	196
Other Current Liabilities | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	42	63	73
Other Current Liabilities | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	1	1
Other Current Liabilities | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	7	7	7
Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	1,202	801	125
Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	448	855	1,651
Long-Term Debt | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	307
Other Noncurrent Liabilities | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring			1
Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	153	168	200
Liabilities, Fair Value Disclosure, Recurring	307	0	0
Quoted Prices in Active Markets (Level 1) | Other Current Assets | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Other Current Assets | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Other Current Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring		0
Quoted Prices in Active Markets (Level 1) | Other Current Assets | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Quoted Prices in Active Markets (Level 1) | Other Noncurrent Assets | Common stock shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	4	4	4
Quoted Prices in Active Markets (Level 1) | Other Noncurrent Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Other Noncurrent Assets | Equity swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	149	164	196
Quoted Prices in Active Markets (Level 1) | Other Current Liabilities | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Other Current Liabilities | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0
Quoted Prices in Active Markets (Level 1) | Other Current Liabilities | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Quoted Prices in Active Markets (Level 1) | Long-Term Debt | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	307
Quoted Prices in Active Markets (Level 1) | Other Noncurrent Liabilities | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring			0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	50	69	93
Liabilities, Fair Value Disclosure, Recurring	1,700	1,727	1,857
Significant Other Observable Inputs (Level 2) | Other Current Assets | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	47	58	66
Significant Other Observable Inputs (Level 2) | Other Current Assets | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1	5	25
Significant Other Observable Inputs (Level 2) | Other Current Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring		1
Significant Other Observable Inputs (Level 2) | Other Current Assets | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1
Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets | Common stock shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	1	5	2
Significant Other Observable Inputs (Level 2) | Other Noncurrent Assets | Equity swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Other Observable Inputs (Level 2) | Other Current Liabilities | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	42	63	73
Significant Other Observable Inputs (Level 2) | Other Current Liabilities | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	1	1
Significant Other Observable Inputs (Level 2) | Other Current Liabilities | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	7	7	7
Significant Other Observable Inputs (Level 2) | Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	1,202	801	125
Significant Other Observable Inputs (Level 2) | Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	448	855	1,651
Significant Other Observable Inputs (Level 2) | Long-Term Debt | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0
Significant Other Observable Inputs (Level 2) | Other Noncurrent Liabilities | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring			1
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Current Assets | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Current Assets | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Current Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring		0
Significant Unobservable Inputs (Level 3) | Other Current Assets | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0
Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets | Common stock shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Noncurrent Assets | Equity swap
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Current Liabilities | Foreign Currency Exchange Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Other Current Liabilities | Cross-Currency Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0
Significant Unobservable Inputs (Level 3) | Other Current Liabilities | Commodity Derivatives
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Current Portion of Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	0	0
Significant Unobservable Inputs (Level 3) | Long-Term Debt | Fixed Rate Debt Swapped to Floating
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	0	$ 0	0
Significant Unobservable Inputs (Level 3) | Long-Term Debt | Foreign Currency Denominated Debt [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring	$ 0
Significant Unobservable Inputs (Level 3) | Other Noncurrent Liabilities | Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Liabilities, Fair Value Disclosure, Recurring			$ 0

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements - Fixed Rate Bonds (Details) $ in Millions	Dec. 31, 2015Swap	Sep. 30, 2015Swap	Dec. 31, 2014Swap	Jun. 30, 2014USD ($)Swap	Sep. 30, 2013USD ($)Swap
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held	12	12	13
7.7% due 2015 | Interest Rate Swaps
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Derivative, Amount of Hedged Item | $					$ 125
Debt Instrument, Interest Rate, Stated Percentage					7.70%
Number of Interest Rate Derivatives Held					1
5.5% due 2016 | Interest Rate Swaps
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Derivative, Amount of Hedged Item | $					$ 800
Debt Instrument, Interest Rate, Stated Percentage					5.50%
Number of Interest Rate Derivatives Held					4
2.6% due 2017 | Interest Rate Swaps
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Derivative, Amount of Hedged Item | $				$ 400
Debt Instrument, Interest Rate, Stated Percentage				2.60%
Number of Interest Rate Derivatives Held				4
1.4% due 2018 | Interest Rate Swaps
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Derivative, Amount of Hedged Item | $				$ 300
Debt Instrument, Interest Rate, Stated Percentage				1.40%
Number of Interest Rate Derivatives Held				3
7.125% due 2017 | Interest Rate Swaps
Fair Value Measurements, Fixed Rate Bonds [Line Items]
Derivative, Amount of Hedged Item | $				$ 150
Debt Instrument, Interest Rate, Stated Percentage				7.125%
Number of Interest Rate Derivatives Held				1

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail) ¥ in Billions	Dec. 31, 2015USD ($)Swap	Dec. 31, 2015JPY (¥)Swap	Sep. 30, 2015USD ($)Swap	Sep. 30, 2015JPY (¥)Swap	Dec. 31, 2014USD ($)Swap	Dec. 31, 2014JPY (¥)Swap
Derivative [Line Items]
Number of Interest Rate Derivatives Held | Swap	12	12	12	12	13	13
Fair value of long term debt	$ 6,500,000,000		$ 6,700,000,000		$ 6,900,000,000
Unrealized Gains
Derivative [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	0		0		0
Unrealized Losses [Member]
Derivative [Line Items]
Available-for-sale Securities, Accumulated Gross Unrealized Gain (Loss), before Tax	$ 0		$ 0		$ 0
Cross-Currency Interest Rate Swaps
Derivative [Line Items]
Cross-currency interest rate swaps outstanding | ¥		¥ 15		¥ 20		¥ 20
Number of Interest Rate Derivatives Held | Swap	3	3	4	4	4	4
Foreign Currency Denominated Debt [Member]
Derivative [Line Items]
Cross-currency interest rate swaps outstanding | ¥		¥ 37		¥ 0		¥ 0

Segment Information - Additiona

Segment Information - Additional Information (Detail)	3 Months Ended	12 Months Ended
	Dec. 31, 2015SegmentBusiness	Sep. 30, 2015Segment
Segment Reporting Information [Line Items]
Number of primary businesses | Business	3
Number of reportable segments	7
Building Efficiency
Segment Reporting Information [Line Items]
Number of reportable segments	4	3

Segment Information - Financial

Segment Information - Financial Information Related to Company's Reportable Segments (Detail) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 8,929	$ 9,624
Segment Income	687	706
Net financing charges	(68)	(71)
Income from continuing operations before income taxes	619	635
Power Solutions
Segment Reporting Information [Line Items]
Net sales	1,740	1,844
Segment Income	342	315
Building Efficiency
Segment Reporting Information [Line Items]
Net sales	2,956	2,497
Segment Income	167	157
Building Efficiency | Building Efficiency Products North America
Segment Reporting Information [Line Items]
Net sales	557	558
Segment Income	17	44
Building Efficiency | Building Efficiency Systems and Service North America
Segment Reporting Information [Line Items]
Net sales	984	957
Segment Income	93	64
Building Efficiency | Building Efficiency Asia
Segment Reporting Information [Line Items]
Net sales	992	501
Segment Income	62	49
Building Efficiency | Building Efficiency Rest of World [Member]
Segment Reporting Information [Line Items]
Net sales	423	481
Segment Income	(5)	0
Automotive Experience
Segment Reporting Information [Line Items]
Net sales	4,233	5,283
Segment Income	178	234
Automotive Experience | Seating
Segment Reporting Information [Line Items]
Net sales	4,086	4,135
Segment Income	166	201
Automotive Experience | Interiors
Segment Reporting Information [Line Items]
Net sales	147	1,148
Segment Income	$ 12	$ 33

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Reserves for environmental liabilities	$ 24	$ 23	$ 23
Conditional asset retirement obligations	$ 58	$ 59	$ 53

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events (Details) - Subsequent Event [Member]	Jan. 25, 2016USD ($)$ / shares
Subsequent Event [Line Items]
Subsequent Event, Date	Jan. 25, 2016
Cash consideration election option for the Company's shareholders at time of merger	$ 34.88
Amount JCI shareholders to receive at time of merger | $	$ 3,864,000,000
Merger, issued and unissued ordinary share of Tyco at time of Merger	$ 0.955
Ownership Percentage of New Entity, JCI shareholders	56.00%
Ownership Percentage of New Entity, Tyco Shareholders	44.00%
Shareholder votes needed to approve merger	75.00%
Combined Company, Board of Directors Post Merger	11
Combined Company, Board of Directors from JCI Prior to Merger	6
Combined Company, Board of Directors from Tyco Prior to Merger	5
Combined Company, Board of Directors Mutually Agreed Upon, Prior to Merger	9
Combined Company, Board of Director serving as Independent Lead Director from JCI, Prior to Merger	1
Period for which Alex Molinaroli will serve as Chairman and CEO of Combined Company	18-month
Period for which Alex Molinaroli will serve as Executive Chair of the Combined Company, Following his time as Chairman and CEO	12 months
Period after the Second Succession Date in which the non-executive directors of the combined company can vote for Chairmand and CEO	3 months
Affirmative Votes Needed to Affirm Chairman and CEO	75.00%