Consolidated Statements of Income - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net sales
Products and systems	[1]	$ 6,565	$ 6,172	$ 18,507	$ 17,526
Services	[1]	1,555	1,511	4,523	4,510
Net sales		8,120	7,683	23,030	22,036
Cost of sales
Products and systems	[1]	4,778	4,357	13,644	12,507
Services	[1]	870	895	2,525	2,703
Cost of sales		5,648	5,252	16,169	15,210
Gross profit		2,472	2,431	6,861	6,826
Selling, general and administrative expenses		(1,527)	(1,609)	(4,532)	(4,905)
Restructuring and impairment costs		0	(49)	(158)	(226)
Net financing charges		(101)	(124)	(332)	(376)
Equity income		66	69	170	177
Income from continuing operations before income taxes		910	718	2,009	1,496
Income tax provision		106	89	451	570
Income from continuing operations		804	629	1,558	926
Loss from discontinued operations, net of tax (Note 4)		0	0	0	(34)
Net income		804	629	1,558	892
Income from continuing operations attributable to noncontrolling interests		81	74	167	147
Income from discontinued operations attributable to noncontrolling interests		0	0	0	9
Net income attributable to Johnson Controls		723	555	1,391	736
Amounts attributable to Johnson Controls ordinary shareholders
Income from continuing operations		723	555	1,391	779
Loss from discontinued operations		$ 0	$ 0	$ 0	$ (43)
Earnings (loss) per share
Basic earnings per share from continuing operations		$ 0.78	$ 0.59	$ 1.50	$ 0.83
Basic loss per share from discontinued operations		0.00	0.00	0.00	(0.05)
Basic earnings per share	[2]	0.78	0.59	1.50	0.79
Diluted earnings per share from continuing operations		0.78	0.59	1.49	0.82
Diluted loss per share from discontinued operations		0.00	0.00	0.00	(0.05)
Diluted earnings per share	[2]	$ 0.78	$ 0.59	$ 1.49	$ 0.78

[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