Employee Benefits (Tables)

9 Months Ended

Sep. 30, 2025

Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]

Schedule of Components of Net Periodic Costs

The components of net periodic cost for the Domestic Pension Plan, the significant foreign pension plans and the domestic postretirement benefit plan are listed below.


	Domestic Pension Plan				Foreign Pension Plans				Domestic Postretirement Benefit Plan
Three Months Ended September 30,	2025		2024		2025		2024		2025		2024
Service cost	$	0.0	$	0.0	$	0.8	$	0.8	$	0.0	$	0.0
Interest cost	0.9		1.0		4.2		3.8		0.2		0.2
Expected return on plan assets	(0.7)		(0.7)		(4.4)		(3.8)		0.0		0.0
Settlements	8.7		0.0		(0.2)		(0.1)		0.0		0.0
Amortization of:
Prior service cost	0.0		0.0		0.0		0.1		0.0		0.0
Unrecognized actuarial losses	0.5		0.3		1.7		1.5		0.1		0.0
Net periodic cost	$	9.4	$	0.6	$	2.1	$	2.3	$	0.3	$	0.2

	Domestic Pension Plan				Foreign Pension Plans				Domestic Postretirement Benefit Plan
Nine Months Ended September 30,	2025		2024		2025		2024		2025		2024
Service cost	$	0.0	$	0.0	$	2.5	$	2.5	$	0.0	$	0.0
Interest cost	2.6		2.8		12.2		11.1		0.6		0.6
Expected return on plan assets	(2.0)		(2.1)		(12.9)		(11.1)		0.0		0.0
Settlements	8.7		0.0		(0.2)		(0.2)		0.0		0.0
Amortization of:
Prior service cost	0.0		0.0		0.0		0.1		0.0		0.0
Unrecognized actuarial losses	1.5		1.1		5.1		4.4		0.2		0.0
Net periodic cost	$	10.8	$	1.8	$	6.7	$	6.8	$	0.8	$	0.6

INTERPUBLIC GROUP OF COMPANIES, INC. 10-Q