Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Notes to Financial Statements [Abstract]

Notional Amounts for Each Category of Derivative Activity

The table below summarizes, by notional amounts, the activity for each category of derivatives. The notional amounts represent the basis upon which our counterparty pay and receive amounts are calculated.

	Swaps
	Receive Variable/Pay Fixed		Receive Fixed/Pay Fixed		Receive Fixed/Pay Variable		Credit Default		Forwards		Options		Total
	(in millions of dollars)
Balance at December 31, 2012	$	174.0	$	508.8	$	750.0	$	—	$	—	$	—	$	1,432.8
Additions	—		160.0		—		97.0		24.0		10.0		291.0
Terminations	24.0		38.4		150.0		—		24.0		10.0		246.4
Balance at December 31, 2013	150.0		630.4		600.0		97.0		—		—		1,477.4
Additions	—		250.1		—		—		68.0		—		318.1
Terminations	—		40.1		—		—		68.0		—		108.1
Balance at December 31, 2014	150.0		840.4		600.0		97.0		—		—		1,687.4
Additions	—		—		—		2.0		94.0		—		96.0
Terminations	—		190.1		—		29.0		94.0		—		313.1
Balance at December 31, 2015	$	150.0	$	650.3	$	600.0	$	70.0	$	—	$	—	$	1,470.3

Location and Fair Values of Derivative Financial Instruments

The following tables summarize the location and fair values of derivative financial instruments, as reported in our consolidated balance sheets.

	December 31, 2015
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in millions of dollars)
Designated as Hedging Instruments
Interest Rate Swaps	Other L-T Investments	$	2.4	Other Liabilities	$	12.3
Foreign Exchange Contracts	Other L-T Investments	47.4		Other Liabilities	6.0
Total		$	49.8		$	18.3
Not Designated as Hedging Instruments
Credit Default Swaps				Other Liabilities	$	0.3
Foreign Exchange Contracts				Other Liabilities	31.6
Embedded Derivative in Modified Coinsurance Arrangement				Other Liabilities	87.6
Total					$	119.5

	December 31, 2014
	Asset Derivatives			Liability Derivatives
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
	(in millions of dollars)
Designated as Hedging Instruments
Interest Rate Swaps	Other L-T Investments	$	5.7	Other Liabilities	$	20.8
Foreign Exchange Contracts	Other L-T Investments	22.3		Other Liabilities	39.6
Total		$	28.0		$	60.4
Not Designated as Hedging Instruments
Credit Default Swaps				Other Liabilities	$	1.2
Foreign Exchange Contracts				Other Liabilities	31.3
Embedded Derivative in Modified Coinsurance Arrangement				Other Liabilities	49.9
Total					$	82.4

Location of Gains and Losses on Derivative Instruments Designated as Cash Flow Hedging Instruments

The following table summarizes the location of gains and losses on the effective portion of derivative financial instruments designated as cash flow hedging instruments, as reported in our consolidated statements of income and consolidated statements of comprehensive income.

		Year Ended December 31
		2015			2014			2013
		(in millions of dollars)
Gain (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives
Interest Rate Swaps and Forwards		$	(0.7	)	$	(0.1	)	$	(7.2	)
Options		—			—			(0.1		)
Foreign Exchange Contracts		68.1			16.2			22.6
	Total	$	67.4		$	16.1		$	15.3
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income
Net Investment Income
	Interest Rate Swaps and Forwards	$	50.2		$	47.8		$	43.1
	Foreign Exchange Contracts	(1.6		)	(4.2		)	(5.9		)
Net Realized Investment Gain (Loss)
	Interest Rate Swaps	0.5			4.3			1.3
	Foreign Exchange Contracts	36.1			6.9			(13.8		)
Interest and Debt Expense
	Interest Rate Swaps	(1.8		)	(1.8		)	(1.7		)
	Total	$	83.4		$	53.0		$	23.0

Gains and Losses on Derivatives Not Designated as Hedging Instruments

The following table summarizes the location of gains and losses on our derivatives not designated as hedging instruments, as reported in our consolidated statements of income.

		Year Ended December 31
		2015			2014			2013
		(in millions of dollars)
Net Realized Investment Gain (Loss)
	Credit Default Swaps	$	0.1		$	(0.3	)	$	(1.9	)
	Foreign Exchange Contracts	(0.3		)	(1.8		)	—
	Embedded Derivative in Modified Coinsurance Arrangement	(37.7		)	3.3			30.7
	Total	$	(37.9	)	$	1.2		$	28.8