Exhibit 12.1

Ratio of Earnings to Fixed Charges
(dollars in millions)
	Years Ended December 31,										Three Months Ended March 31, 2017
	2012		2013		2014		2015		2016
Income before income taxes	$	919.2	$	635.3	$	1,008.5	$	744.8	$	1,043.9	$	207.8
Less:
Undistributed income of investees accounted for under the equity method		3.3		4.3		3.0		7.0		1.6		1.3
Adjusted earnings before fixed charges	$	915.9	$	631.0	$	1,005.5	$	737.8	$	1,042.3	$	206.5
Add fixed charges:
Interest expense		117.5		134.8		108.1		165.5		163.5		49.2
Interest credited on reinsurance contracts		379.9		476.5		451.0		337.0		364.7		107.7
One-third of rentals		6.5		6.2		6.4		4.0		4.6		1.3
Total fixed charges	$	503.9	$	617.5	$	565.5	$	506.5	$	532.8	$	158.2
Total earnings plus fixed charges	$	1,419.8	$	1,248.5	$	1,571.0	$	1,244.3	$	1,575.1	$	364.7
Ratio of earnings to fixed charges		2.8		2.0		2.8		2.5		3.0		2.3
Total fixed charges	$	503.9	$	617.5	$	565.5	$	506.5	$	532.8	$	158.2
Less interest credited on reinsurance contracts		379.9		476.5		451.0		337.0		364.7		107.7
Total fixed charges excluding interest credited(1)	$	124.0	$	141.0	$	114.5	$	169.5	$	168.1	$	50.5
Total earnings plus fixed charges excluding interest credited under reinsurance contracts(1)	$	1,039.9	$	772.0	$	1,120.0	$	907.3	$	1,210.4	$	257.0
Ratio of earnings to fixed charges excluding interest credited under reinsurance contracts(1)		8.4		5.5		9.8		5.4		7.2		5.1

(1) This information is not required, but the Company believes it provides additional useful information on the coverage of fixed charges that are not related to its products.