Stockholders' Equity and Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2016

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 June 30				Six Months Ended June 30
	2016		2015		2016		2015
	(in millions of dollars, except share data)
Numerator
Net Income	$	236.8	$	224.3	$	447.4	$	437.2
Denominator (000s)
Weighted Average Common Shares - Basic	236,892.8		248,318.6		238,254.3		249,885.0
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	426.0		873.6		368.5		820.5
Weighted Average Common Shares - Assuming Dilution	237,318.8		249,192.2		238,622.8		250,705.5
Net Income Per Common Share
Basic	$	1.00	$	0.90	$	1.88	$	1.75
Assuming Dilution	$	1.00	$	0.90	$	1.87	$	1.74

Treasury Stock Transactions

Common Stock

During the second quarter of 2016, our board of directors authorized the repurchase of up to $750.0 million of Unum Group's outstanding common stock through November 26, 2017. This authorization replaced the previous authorization of $750.0 million that was scheduled to expire on November 21, 2016. The remaining repurchase amount under the new program was $698.7 million at June 30, 2016.

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
	2016		2015		2016		2015
	(in millions)
Shares Repurchased	2.8		3.0		6.5		6.2
Cost of Shares Repurchased (1)	$	100.1	$	103.1	$	200.1	$	211.2

(1) Includes commissions of $0.1 million for the three month period ended June 30, 2016 and the six month periods ended June 30, 2016 and 2015. For the three month period ended June 30, 2015 there was a de minimus amount of commissions.