Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2024

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following sets forth basic and diluted earnings per common share available to IPG common stockholders.

	Three Months Ended March 31,
	2024		2023
Net income available to IPG common stockholders	$	110.4	$	126.0
Weighted-average number of common shares outstanding - basic	378.4		385.8
Dilutive effect of stock options and restricted shares	2.2		1.6
Weighted-average number of common shares outstanding - diluted	380.6		387.4
Earnings per share available to IPG common stockholders:
Basic	$	0.29	$	0.33
Diluted	$	0.29	$	0.33