Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2020

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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Net income available to IPG common stockholders	$	279.7	$	165.6	$	238.8	$	327.1
Weighted-average number of common shares outstanding - basic	389.6		386.7		388.9		385.8
Dilutive effect of stock options and restricted shares	4.3		5.1		3.7		4.5
Weighted-average number of common shares outstanding - diluted	393.9		391.8		392.6		390.3
Earnings per share available to IPG common stockholders:
Basic	$	0.72	$	0.43	$	0.61	$	0.85
Diluted	$	0.71	$	0.42	$	0.61	$	0.84