Consolidated Statements of Cash Flows $ in Millions	12 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Operating Activities
Net income (loss) attributable to Johnson Controls	$ 1,611	$ (868)	$ 1,563
Income from continuing operations attributable to noncontrolling interests	199	132	46
Income from discontinued operations attributable to noncontrolling interests	9	84	70
Net income (loss)	1,819	(652)	1,679
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	1,188	953	860
Pension and postretirement benefit expense	(568)	460	396
Pension and postretirement contributions	(347)	(137)	(409)
Equity in earnings of partially-owned affiliates, net of dividends received	(181)	(250)	(144)
Deferred income taxes	1,125	(1,241)	327
Non-cash restructuring and impairment charges	78	221	183
Gain on divestitures - net	(9)	(26)	(1,340)
Fair value adjustment of equity investment	0	(4)	0
Equity-based compensation	147	142	90
Other	(3)	5	(1)
Changes in assets and liabilities, excluding acquisitions and divestitures:
Accounts receivable	(520)	(344)	(297)
Inventories	(398)	1	(99)
Other assets	(480)	148	(113)
Restructuring reserves	89	141	(6)
Accounts payable and accrued liabilities	217	398	348
Accrued income taxes	(2,145)	2,080	126
Cash provided by operating activities	12	1,895	1,600
Investing Activities
Capital expenditures	(1,343)	(1,249)	(1,135)
Sale of property, plant and equipment	33	32	37
Acquisition of businesses, net of cash acquired	(6)	353	(22)
Business divestitures, net of cash divested	220	32	1,646
Changes in long-term investments	(41)	(48)	(44)
Intercompany investment in subsidiaries	0
Other		(7)	(12)
Cash provided (used) by investing activities	(1,137)	(887)	470
Financing Activities
Increase (decrease) in short-term debt - net	145	556	(68)
Increase in long-term debt	1,865	1,501	299
Repayment of long-term debt	(1,297)	(1,299)	(191)
Debt financing costs	(18)	(45)	0
Stock repurchases	(651)	(501)	(1,362)
Payment of cash dividends	(702)	(915)	(657)
Proceeds from the exercise of stock options	157	70	275
Change in noncontrolling Interest share		(2)	(38)
Dividends paid to noncontrolling interest	(88)	(306)	(68)
Dividend from Adient spin-off	(2,050)	0	0
Cash transferred to Adient related to spin-off	(665)	0	0
Cash paid to prior acquisitions	75	0	0
Other	(12)	8	(11)
Cash provided (used) by financing activities	717	(933)	(1,821)
Effect of exchange rate changes on cash and cash equivalents	54	12	(81)
Change in cash held for sale	(96)	61	21
Increase (decrease) in cash and cash equivalents	(258)	26	189
Cash and cash equivalents at beginning of period	579	553	364
Cash and cash equivalents at end of period	$ 321	$ 579	$ 553