Equity and Noncontrolling Interests (Tables)

9 Months Ended

Jun. 30, 2021

Stockholders' Equity Note [Abstract]

Equity Attributable to Johnson Controls and Noncontrolling Interests

The following schedules present changes in consolidated equity attributable to Johnson Controls and noncontrolling interests (in millions, net of tax):

	Three Months Ended June 30, 2021						Three Months Ended June 30, 2020
	Equity Attributable to Johnson Controls International plc		Equity Attributable to Noncontrolling Interests		Total Equity		Equity Attributable to Johnson Controls International plc		Equity Attributable to Noncontrolling Interests		Total Equity
Beginning balance, March 31	$	17,698	$	1,059	$	18,757	$	18,084	$	1,004	$	19,088
Total comprehensive income (loss):
Net income (loss)	574		87		661		(182)		60		(122)
Foreign currency translation adjustments	75		14		89		72		4		76
Realized and unrealized gains (losses) on derivatives	(15)		(3)		(18)		6		—		6
Pension and postretirement plans	(1)		—		(1)		—		—		—
Other comprehensive income	59		11		70		78		4		82
Comprehensive income (loss)	633		98		731		(104)		64		(40)
Other changes in equity:
Cash dividends—ordinary shares	(193)		—		(193)		(195)		—		(195)
Repurchases and retirements of ordinary shares	(340)		—		(340)		—		—		—
Other, including options exercised	42		—		42		20		—		20
Ending balance, June 30	$	17,840	$	1,157	$	18,997	$	17,805	$	1,068	$	18,873

	Nine Months Ended June 30, 2021						Nine Months Ended June 30, 2020
	Equity Attributable to Johnson Controls International plc		Equity Attributable to Noncontrolling Interests		Total Equity		Equity Attributable to Johnson Controls International plc		Equity Attributable to Noncontrolling Interests		Total Equity
Beginning balance, September 30	$	17,447	$	1,086	$	18,533	$	19,766	$	1,063	$	20,829
Total comprehensive income:
Net income	1,368		186		1,554		190		115		305
Foreign currency translation adjustments	435		25		460		(148)		(9)		(157)
Realized and unrealized gains (losses) on derivatives	(8)		(1)		(9)		1		2		3
Pension and postretirement plans	(2)		—		(2)		(1)		—		(1)
Other comprehensive income (loss)	425		24		449		(148)		(7)		(155)
Comprehensive income	1,793		210		2,003		42		108		150
Other changes in equity:
Cash dividends—ordinary shares	(577)		—		(577)		(590)		—		(590)
Dividends attributable to noncontrolling      interests	—		(133)		(133)		—		(103)		(103)
Repurchases and retirements of ordinary shares	(1,001)		—		(1,001)		(1,467)		—		(1,467)
Change in noncontrolling interest share	(8)		(6)		(14)		—		—		—
Adoption of ASC 842	—		—		—		(5)		—		(5)
Adoption of ASU 2016-13	(4)		—		(4)		—		—		—
Other, including options exercised	190		—		190		59		—		59
Ending balance, June 30	$	17,840	$	1,157	$	18,997	$	17,805	$	1,068	$	18,873

Changes in Accumulated Other Comprehensive Income, Net of Tax

The following schedules present changes in accumulated other comprehensive income ("AOCI") attributable to Johnson Controls (in millions, net of tax):

	Three Months Ended June 30,
	2021		2020
Foreign currency translation adjustments ("CTA")
Balance at beginning of period	$	(418)	$	(1,005)
Aggregate adjustment for the period (net of tax effect of $0 and $0)	75		72
Balance at end of period	(343)		(933)
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period	9		(7)
Current period changes in fair value (net of tax effect of $3 and $1)	(5)		4
Reclassification to income (net of tax effect of $(3) and $0) *	(10)		2
Balance at end of period	(6)		(1)
Pension and postretirement plans
Balance at beginning of period	(1)		(9)
Reclassification to income (net of tax effect of $0 and $0)	(1)		—
Balance at end of period	(2)		(9)
Accumulated other comprehensive loss, end of period	$	(351)	$	(943)

	Nine Months Ended June 30,
	2021		2020
CTA
Balance at beginning of period	$	(778)	$	(785)
Aggregate adjustment for the period (net of tax effect of $0 and $0)	435		(148)
Balance at end of period	(343)		(933)
Realized and unrealized gains (losses) on derivatives
Balance at beginning of period	2		(2)
Current period changes in fair value (net of tax effect of $7 and $0)	2		1
Reclassification to income (net of tax effect of $(3) and $0) *	(10)		—
Balance at end of period	(6)		(1)
Pension and postretirement plans
Balance at beginning of period	—		(8)
Reclassification to income (net of tax effect of $0 and $0)	(2)		(1)
Balance at end of period	(2)		(9)
Accumulated other comprehensive loss, end of period	$	(351)	$	(943)

* Refer to Note 17, "Derivative Instruments and Hedging Activities," of the notes to 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.