Earnings Per Share (Notes)

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

Earnings Per Share [Text Block]

Earnings (Loss) Per Share

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

	Three months ended March 31,
	2025		2024
Net income (loss) available to IPG common stockholders	$	(85.4)	$	110.4
Weighted-average number of common shares outstanding - basic	372.5		378.4
Dilutive effect of stock options and restricted shares	2.5		2.2
Weighted-average number of common shares outstanding - diluted	375.0		380.6
Earnings (loss) per share available to IPG common stockholders:
Basic	$	(0.23)	$	0.29
Diluted	$	(0.23)	$	0.29