Business Segment Information (Tables)

9 Months Ended

Sep. 30, 2021

Segment Reporting [Abstract]

Summary of Operations by Reportable Segments

A summary of operations by reportable segment for the three and nine months ended September 30 was as follows:

	Three months ended				Nine months ended
In millions	2021		2020		2021		2020
Net revenues
Allegion Americas	$	524.4	$	539.1	$	1,572.7	$	1,495.5
Allegion International	192.6		189.3		585.5		497.1
Total	$	717.0	$	728.4	$	2,158.2	$	1,992.6
Segment operating income (loss)
Allegion Americas	$	133.7	$	165.0	$	419.5	$	432.4
Allegion International	20.5		13.2		54.0		(92.8)
Total	154.2		178.2		473.5		339.6
Reconciliation to Operating income
Unallocated corporate expense	(15.8)		(17.8)		(58.4)		(53.8)
Operating income	138.4		160.4		415.1		285.8
Reconciliation to earnings before income taxes
Interest expense	12.3		12.9		37.0		38.8
Other income, net	(14.7)		(12.2)		(21.4)		(12.6)
Earnings before income taxes	$	140.8	$	159.7	$	399.5	$	259.6