Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Net sales	$ 6,686	$ 6,098	$ 12,754	$ 11,960
Cost of sales	4,445	4,141	8,422	8,112
Gross profit	2,241	1,957	4,332	3,848
Selling, general and administrative expenses	(1,579)	(1,454)	(3,150)	(2,823)
Restructuring and impairment costs	(418)	(384)	(763)	(433)
Net financing charges	(71)	(51)	(138)	(104)
Equity income	50	42	112	112
Income before income taxes	223	110	393	600
Income tax provision	49	58	63	129
Net income	174	52	330	471
Income attributable to noncontrolling interests	41	41	79	79
Net income attributable to Johnson Controls	$ 133	$ 11	$ 251	$ 392
Earnings per share attributable to Johnson Controls
Basic (in dollars per share)	$ 0.19	$ 0.02	$ 0.37	$ 0.56
Diluted (in dollars per share)	$ 0.19	$ 0.02	$ 0.36	$ 0.56
Products and systems
Net sales	$ 5,083	$ 4,617	$ 9,639	$ 9,037
Cost of sales	3,516	3,294	6,629	6,447
Services
Net sales	1,603	1,481	3,115	2,923
Cost of sales	$ 929	$ 847	$ 1,793	$ 1,665