Equity (Tables)

6 Months Ended

Jun. 30, 2023

Stockholders' Equity Note [Abstract]

Components of Equity

The changes in the components of Equity for the six months ended June 30, 2023, were as follows:

			Allegion plc shareholders' equity
			Ordinary shares
In millions, except per share amounts	Total equity		Amount		Shares	Capital in excess of par value		Retained earnings		Accumulated other comprehensive loss		Noncontrolling interests
Balance at December 31, 2022	$	944.5	$	0.9	87.9	$	13.9	$	1,212.8	$	(285.8)	$	2.7
Net earnings	123.6		—		—	—		123.5		—		0.1
Other comprehensive income, net	10.3		—		—	—		—		10.2		0.1
Share-based compensation activity	5.7		—		—	5.7		—		—		—
Dividends to ordinary shareholders ($0.45 per share)	(39.5)		—		—	—		(39.5)		—		—
Balance at March 31, 2023	$	1,044.6	$	0.9	87.9	$	19.6	$	1,296.8	$	(275.6)	$	2.9
Net earnings	142.0		—		—	—		142.0		—		—
Other comprehensive income (loss), net	7.9		—		—	—		—		8.8		(0.9)
Repurchase of ordinary shares	(19.9)		—		(0.2)	(19.9)		—		—		—
Share-based compensation activity	5.6		—		0.1	5.6		—		—		—
Dividends to noncontrolling interests	(0.1)		—		—	—		—		—		(0.1)
Dividends to ordinary shareholders ($0.45 per share)	(39.6)		—		—	—		(39.6)		—		—
Balance at June 30, 2023	1,140.5		0.9		87.8	5.3		1,399.2		(266.8)		1.9

The changes in the components of Equity for the six months ended June 30, 2022, were as follows:

			Allegion plc shareholders' equity
			Ordinary shares
In millions, except per share amounts	Total equity		Amount		Shares	Capital in excess of par value		Retained earnings		Accumulated other comprehensive loss		Noncontrolling interests
Balance at December 31, 2021	$	762.4	$	0.9	88.2	$	—	$	952.6	$	(194.4)	$	3.3
Net earnings	93.1		—		—	—		93.0		—		0.1
Other comprehensive loss, net	(21.0)		—		—	—		—		(21.0)		—
Repurchase of ordinary shares	(61.0)		—		(0.5)	(7.5)		(53.5)		—		—
Share-based compensation activity	7.5		—		0.1	7.5		—		—		—
Dividends to ordinary shareholders ($0.41 per share)	(36.0)		—		—	—		(36.0)		—		—
Balance at March 31, 2022	$	745.0	$	0.9	87.8	$	—	$	956.1	$	(215.4)	$	3.4
Net earnings	115.2		—		—	—		115.1		—		0.1
Other comprehensive income, net	(49.8)		—		—	—		—		(49.2)		(0.6)
Share-based compensation activity	5.4		—		—	5.4		—		—		—
Dividends to noncontrolling interests	(0.1)		—		—	—		—		—		(0.1)
Dividends to ordinary shareholders ($0.41 per share)	(36.0)		—		—	—		(36.0)		—		—
Balance at June 30, 2022	779.7		0.9		87.8	5.4		1,035.2		(264.6)		2.8

Accumulated Other Comprehensive Loss

The changes in Accumulated other comprehensive loss for the six months ended June 30, 2023, were as follows:

In millions	Cash flow hedges		Defined benefit items		Foreign currency items		Total
December 31, 2022	$	6.1	$	(117.1)	$	(174.8)	$	(285.8)
Other comprehensive (loss) income before reclassifications	(1.1)		(4.9)		23.4		17.4
Amounts reclassified from accumulated other comprehensive loss(a)	(1.2)		2.0		—		0.8
Tax benefit	0.5		0.3		—		0.8
June 30, 2023	$	4.3	$	(119.7)	$	(151.4)	$	(266.8)

The changes in Accumulated other comprehensive loss for the six months ended June 30, 2022, were as follows:

In millions	Cash flow hedges		Defined benefit items		Foreign currency items		Total
December 31, 2021	$	0.9	$	(96.0)	$	(99.3)	$	(194.4)
Other comprehensive income (loss) before reclassifications	6.7		5.7		(83.8)		(71.4)
Amounts reclassified from accumulated other comprehensive loss(a)	—		0.9		—		0.9
Tax (expense) benefit	(0.1)		0.4		—		0.3
June 30, 2022	$	7.5	$	(89.0)	$	(183.1)	$	(264.6)

(a)    Amounts reclassified from Accumulated other comprehensive loss and recognized into Net earnings related to cash flow hedges are recorded in Cost of goods sold and Interest expense. Amounts reclassified from Accumulated other comprehensive loss and recognized into Net earnings related to defined benefit items are recorded in Other income, net.