Consolidated Statements of Income - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Net sales
Products and systems	[1]	$ 8,161	$ 8,292	$ 16,214	$ 17,015
Services	[1]	870	906	1,746	1,807
Net sales		9,031	9,198	17,960	18,822
Cost of sales
Products and systems	[1]	6,707	7,004	13,404	14,410
Services	[1]	595	621	1,194	1,230
Cost of sales		7,302	7,625	14,598	15,640
Gross profit		1,729	1,573	3,362	3,182
Selling, general and administrative expenses		(1,144)	(975)	(2,226)	(1,980)
Restructuring Charges		(229)	0	(229)	0
Net financing charges		(74)	(69)	(142)	(140)
Equity income		117	82	253	184
Income from continuing operations before income taxes		399	611	1,018	1,246
Income tax provision		868	132	997	250
Net income (loss) from continuing operations		(469)	479	21	996
Income from discontinued operations, net of tax (Note 4)		0	78	0	107
Net income (loss)		(469)	557	21	1,103
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) attributable to Johnson Controls, Inc.		(530)	529	(80)	1,036
Amounts attributable to Johnson Controls, Inc. common shareholders
Income (loss) from continuing operations		(530)	452	(80)	933
Income from discontinued operations		$ 0	$ 77	$ 0	$ 103
Earnings (loss) per share
Basic earnings (loss) per share from continuing operations		$ (0.82)	$ 0.69	$ (0.12)	$ 1.42
Basic earnings per share from discontinued operations		0.00	0.12	0.00	0.16
Basic earnings (loss) per share	[2]	(0.82)	0.81	(0.12)	1.57
Diluted earnings (loss) per share from continuing operations		(0.82)	0.68	(0.12)	1.40
Diluted earnings per share from discontinued operations		0.00	0.12	0.00	0.15
Diluted earnings (loss) per share	[2]	$ (0.82)	$ 0.80	$ (0.12)	$ 1.56

[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.

[2] Certain items do not sum due to rounding