Consolidated Statements of Income - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Net sales
Products and systems	[1]	$ 24,099	$ 18,084	$ 14,733
Services	[1]	6,073	2,753	2,367
Net sales		30,172	20,837	17,100
Cost of sales
Products and systems	[1]	17,220	13,323	10,954
Services	[1]	3,613	1,860	1,615
Cost of sales		20,833	15,183	12,569
Gross profit		9,339	5,654	4,531
Selling, general and administrative expenses		(6,158)	(4,190)	(3,191)
Restructuring and impairment costs		(367)	(288)	(215)
Net financing charges		(496)	(289)	(274)
Equity income		240	174	80
Income from continuing operations before income taxes		2,558	1,061	931
Income tax provision		705	197	71
Income from continuing operations		1,853	864	860
Income (loss) from discontinued operations, net of tax (Note 4)		(34)	(1,516)	819
Net income (loss)		1,819	(652)	1,679
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) attributable to Johnson Controls		1,611	(868)	1,563
Amounts attributable to Johnson Controls, Inc. common shareholders
Income from continuing operations		1,654	732	814
Income (loss) from discontinued operations		$ (43)	$ (1,600)	$ 749
Earnings (loss) per share
Basic earnings per share from continuing operations		$ 1.77	$ 1.10	$ 1.24
Basic earnings (loss) per share from discontinued operations		(0.05)	(2.40)	1.14
Basic earnings (loss) per share	[2]	1.72	(1.30)	2.39
Diluted earnings per share from continuing operations		1.75	1.09	1.23
Diluted earnings (loss) per share from discontinued operations		(0.05)	(2.38)	1.13
Diluted earnings (loss) per share	[2]	$ 1.71	$ (1.29)	$ 2.36

[1] Products and systems consist of Building Technologies & Solutions and Power Solutions products and systems. Services are Building Technologies & Solutions technical services.

[2] Certain items do not sum due to rounding.