Stockholders' Equity and Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2014

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 September 30				Nine Months Ended September 30
	2014		2013		2014		2013
	(in millions of dollars, except share data)
Numerator
Net Income	$	221.1	$	205.7	$	692.5	$	636.9
Denominator (000s)
Weighted Average Common Shares - Basic	253,586.1		262,945.9		256,573.6		265,932.6
Dilution for Assumed Exercises of Stock Options and Nonvested Stock Awards	1,209.4		1,314.1		1,210.1		1,161.1
Weighted Average Common Shares - Assuming Dilution	254,795.5		264,260.0		257,783.7		267,093.7
Net Income Per Common Share
Basic	$	0.87	$	0.78	$	2.70	$	2.39
Assuming Dilution	$	0.87	$	0.78	$	2.69	$	2.38

Treasury Stock Transactions

Common Stock

Our board of directors has authorized the repurchase of Unum Group's common stock under the following repurchase programs:

	Share Repurchase Program Authorized During
	December 2013		July 2012
	(in millions of dollars)
Authorized Repurchase Amount	$	750.0	$	750.0
Remaining Repurchase Amount at September 30, 2014	$	429.5	$	—

The December 2013 share repurchase program has an expiration date of June 12, 2015.

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

	Three Months Ended September 30				Nine Months Ended September 30
	2014		2013		2014		2013
	(in millions)
Shares Repurchased	2.9		2.5		8.7		9.8
Cost of Shares Repurchased (1)	$	100.5	$	75.0	$	300.6	$	268.5

(1) Includes commissions of $0.1 million for each of the nine month periods ended September 30, 2014 and 2013.