Income Tax (Tables)

12 Months Ended

Dec. 31, 2013

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

Total income tax expense (benefit) is allocated as follows:

	Year Ended December 31
	2013			2012			2011
	(in millions of dollars)
Net Income	$	347.1		$	355.1		$	49.1
Stockholders' Equity - Additional Paid-in Capital
Stock-Based Compensation	(0.8		)	3.5			(3.3		)
Stockholders' Equity - Accumulated Other Comprehensive Income (Loss)
Change in Net Unrealized Gain on Securities Before Adjustment	(1,102.8		)	467.7			798.3
Change in Adjustment to Deferred Acquisition Costs and Reserves for Future Policy and Contract Benefits, Net of Reinsurance	743.3			(325.6		)	(701.5		)
Change in Net Gain on Cash Flow Hedges	(1.3		)	(4.3		)	25.2
Change in Unrecognized Pension and Postretirement Benefit Costs	185.2			(68.0		)	(67.4		)
Total	$	170.7		$	428.4		$	100.4

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

A reconciliation of the income tax expense (benefit) attributable to income from operations before income tax, computed at U.S. federal statutory tax rates, to the income tax expense (benefit) as included in our consolidated statements of income, is as follows:

	Year Ended December 31
	2013		2012		2011
Statutory Income Tax	35.0	%	35.0	%	35.0	%
Prior Year Taxes	(0.1	)	(0.9	)	(11.0	)
Foreign Items	(1.9	)	(2.0	)	(0.3	)
Tax Credits	(3.4	)	(2.7	)	(5.9	)
Other Items, Net	(0.8	)	(1.0	)	(3.1	)
Effective Tax	28.8	%	28.4	%	14.7	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Our net deferred tax liability consists of the following. Certain prior year amounts have been reclassified to conform to current year reporting.

	December 31
	2013		2012
	(in millions of dollars)
Deferred Tax Liability
Deferred Acquisition Costs	$	70.0	$	39.3
Fixed Assets	80.3		74.1
Invested Assets	1,274.3		2,342.8
Other	54.4		63.2
Gross Deferred Tax Liability	1,479.0		2,519.4
Deferred Tax Asset
Reserves	1,180.1		1,934.2
Employee Benefits	151.2		315.2
Other	3.4		0.6
Gross Deferred Tax Asset	1,334.7		2,250.0
Total Net Deferred Tax Liability	$	144.3	$	269.4

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

Our consolidated statements of income include amounts subject to both domestic and foreign taxation. The income and related tax expense (benefit) are as follows:

	Year Ended December 31
	2013		2012			2011
	(in millions of dollars)
Income Before Tax
United States - Federal	$	1,072.0	$	1,128.4		$	160.5
Foreign	133.2		121.1			172.8
Total	$	1,205.2	$	1,249.5		$	333.3
Current Tax Expense
United States - Federal	$	277.9	$	164.4		$	218.4
Foreign	18.7		42.2			12.1
Total	296.6		206.6			230.5
Deferred Tax Expense (Benefit)
United States - Federal	47.3		173.5			(203.4		)
Foreign	3.2		(25.0		)	22.0
Total	50.5		148.5			(181.4		)
Total	$	347.1	$	355.1		$	49.1

Summary of Positions for which Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Table Text Block]

Our consolidated statements of income include the following changes in unrecognized tax benefits:

	December 31
	2013			2012			2011
	(in millions of dollars)
Balance at Beginning of Year	$	17.5		$	86.9		$	138.9
Tax Positions Taken During Prior Years
Additions	5.7			13.3			4.4
Subtractions	—			(0.6		)	(11.8		)
Settlements with Tax Authorities	(4.8		)	(23.5		)	(44.6		)
Lapses of Statute of Limitations	—			(61.1		)	—
Tax Positions Taken During Current Year	—			2.5			—
Balance at End of Year	18.4			17.5			86.9
Less Tax Attributable to Temporary Items Included Above	(10.2		)	(15.0		)	(86.9		)
Total Unrecognized Tax Benefits that if Recognized Would Affect the Effective Tax Rate	$	8.2		$	2.5		$	—