Stockholders' Equity and Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2019

Stockholders' Equity and Earnings Per Common Share [Abstract]

Schedule of Basic and Diluted Earnings Per Share

Earnings Per Common Share

Net income per common share is determined as follows:



	Three Months Ended March 31
	2019		2018
	(in millions of dollars, except share data)
Numerator
Net Income	$	280.9	$	273.5

Denominator (000s)
Weighted-Average Common Shares - Basic	214,297.1		221,894.0
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	132.6		683.0
Weighted-Average Common Shares - Assuming Dilution	214,429.7		222,577.0

Net Income Per Common Share
Basic	$	1.31	$	1.23
Assuming Dilution	$	1.31	$	1.23

Treasury Stock Transactions

Common Stock

During the second quarter of 2018, our board of directors authorized the repurchase of up to $750.0 million of Unum Group's outstanding common stock through November 24, 2019. This authorization replaced the previous authorization of $750.0 million that was scheduled to expire on November 25, 2018. The remaining repurchase amount under the new program was $400.0 million at March 31, 2019.

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 March 31
	2019		2018
	(in millions)
Shares Repurchased	2.7		1.9
Cost of Shares Repurchased¹	$	100.0	$	100.2

¹ Includes commissions of a de minimis amount for the three months ended March 31, 2019 and $0.2 million for the three months ended March 31, 2018.