Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Operating Activities
Net income (loss) attributable to Johnson Controls, Inc.	$ (530)	$ 529	$ (80)	$ 1,036
Income from continuing operations attributable to noncontrolling interests	61	27	101	63
Income from discontinued operations attributable to noncontrolling interests	0	1	0	4
Net income (loss)	(469)	557	21	1,103
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	219	205	445	429
Pension and postretirement benefit income	(17)	(1)	(34)	(15)
Pension and postretirement contributions	(34)	(28)	(53)	(52)
Equity in earnings of partially-owned affiliates, net of dividends received	(97)	(77)	(207)	(169)
Deferred income taxes	345	152	331	248
Non-cash restructuring and impairment costs	29	0	29	0
Gain on divestitures	0	(200)	0	(200)
Fair value adjustment of equity investment	4	0	4	0
Equity-based compensation	23	25	51	46
Other	4	4	5	(1)
Changes in assets and liabilities, excluding acquisitions and divestitures:
Receivables	(124)	(299)	75	111
Inventories	(98)	(81)	(168)	(101)
Other assets	242	22	134	(107)
Restructuring reserves	141	(68)	67	(145)
Accouns payable and accrued liabilities	83	246	(311)	(456)
Accrued income taxes	391	(97)	240	(491)
Cash provided by operating activities	634	360	621	200
Investing Activities
Capital expenditures	(261)	(294)	(543)	(556)
Sale of property, plant and equipment	5	3	14	17
Acquisition of businesses, net of cash acquired	0	(9)	(133)	(22)
Business divestitures	22	141	40	141
Changes in long-term investments	0	(47)	0	(45)
Other	1	6	5	11
Cash used by investing activities	(233)	(200)	(617)	(454)
Financing Activities
Increase in short-term debt - net	619	267	1,140	1,165
Repayment of long-term debt	(807)	(131)	(814)	(140)
Stock repurchases	0	(210)	0	(810)
Payment of cash dividends	(188)	(171)	(356)	(317)
Proceeds from the exercise of stock options	4	57	20	162
Dividends paid to noncontrolling interests	(73)	(9)	(227)	(20)
Other	(3)	(25)	3	(33)
Cash provided (used) by financing activities	(448)	(222)	(234)	7
Effect of exchange rate changes on cash and cash equivalents	(9)	39	(9)	(18)
Cash held for sale	0	19	0	20
Decrease in cash and cash equivalents	(56)	(4)	(239)	(245)
Cash and cash equivalents at beginning of period	414	168	597	409
Cash and cash equivalents at end of period	$ 358	$ 164	$ 358	$ 164