Equity (Tables)

6 Months Ended

Mar. 31, 2024

Stockholders' Equity Note [Abstract]

Changes in Accumulated Other Comprehensive Income, Net of Tax

The following schedules present changes in AOCI attributable to Johnson Controls (in millions):

	Three Months Ended March 31,				Six Months Ended March 31,
	2024		2023		2024		2023
Foreign currency translation adjustments
Balance at beginning of period	$	(909)	$	(842)	$	(970)	$	(901)
Aggregate adjustment for the period	(92)		(1)		(31)		58
Balance at end of period	(1,001)		(843)		(1,001)		(843)
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period	(23)		(22)		15		(11)
Current period changes in fair value	23		16		(20)		5
Reclassification to income (1)	3		7		7		4
Net tax impact	(3)		(4)		(2)		(1)
Balance at end of period	—		(3)		—		(3)
Pension and postretirement plans
Balance at beginning of period	(1)		—		—		1
Reclassification to income	(2)		(1)		(3)		(2)
Net tax impact	1		1		1		1
Balance at end of period	(2)		—		(2)		—
Accumulated other comprehensive loss, end of period	$	(1,003)	$	(846)	$	(1,003)	$	(846)

(1) Refer to Note 11, "Derivative Instruments and Hedging Activities," of the notes to the consolidated financial statements for disclosure of the line items in the consolidated statements of income affected by reclassifications from AOCI into income related to derivatives.