Stockholders' Equity and Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2022

Stockholders' Equity and Earnings Per Common Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

Net income per common share is determined as follows:

	Three Months Ended June 30				Six Months Ended June 30
	2022		2021		2022		2021
	(in millions of dollars, except share data)
Numerator
Net Income	$	370.4	$	182.9	$	623.9	$	335.9
Denominator (000s)
Weighted Average Common Shares - Basic	201,151.7		204,504.5		201,888.8		204,323.1
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	1,280.0		769.3		1,077.7		686.7
Weighted Average Common Shares - Assuming Dilution	202,431.7		205,273.8		202,966.5		205,009.8
Net Income Per Common Share
Basic	$	1.84	$	0.89	$	3.09	$	1.64
Assuming Dilution	$	1.83	$	0.89	$	3.07	$	1.64

Treasury Stock Transactions

Common stock repurchases, which are accounted for using the cost method and classified as treasury stock until otherwise retired, were as follows:

	Three Months Ended June 30				Six Months Ended June 30
	2022		2021		2022		2021
	(in millions of dollars, except share data)
Shares Repurchased (000s)	1,735.5		—		3,078.6		—
Cost of Shares Repurchased1	$	57.4	$	—	$	94.9	$	—

1Includes commissions of $0.1 million for the three and six months ended June 30, 2022.