Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2024

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

Components of our accumulated other comprehensive loss, after tax, and related changes are as follows:

	Net Unrealized Loss on Securities		Effect of Change in Discount Rate Assumptions on the LFPB1		Net Gain (Loss) on Derivatives		Foreign Currency Translation Adjustment		Unrecognized Pension and Postretirement Benefit Costs		Total
	(in millions of dollars)
Balance at December 31, 2023	$	(1,919.1)	$	(648.4)	$	(73.7)	$	(321.1)	$	(345.7)	$	(3,308.0)
Other Comprehensive Income (Loss) Before Reclassifications	(454.1)		873.7		(48.9)		(11.5)		(2.4)		356.8
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	12.4		—		(4.4)		—		3.2		11.2
Net Other Comprehensive Income (Loss)	(441.7)		873.7		(53.3)		(11.5)		0.8		368.0
Balance at March 31, 2024	$	(2,360.8)	$	225.3	$	(127.0)	$	(332.6)	$	(344.9)	$	(2,940.0)
Balance at December 31, 2022	$	(3,028.4)	$	313.9	$	(9.6)	$	(390.1)	$	(334.1)	$	(3,448.3)
Other Comprehensive Income (Loss) Before Reclassifications	823.4		(573.9)		25.6		24.7		(6.7)		293.1
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	(0.2)		—		(8.2)		—		1.3		(7.1)
Net Other Comprehensive Income (Loss)	823.2		(573.9)		17.4		24.7		(5.4)		286.0
Balance at March 31, 2023	$	(2,205.2)	$	(260.0)	$	7.8	$	(365.4)	$	(339.5)	$	(3,162.3)
1Liability for Future Policy Benefits

Schedule of Reclassification out of Accumulated Other Comprehensive Income (Loss)

Amounts reclassified from accumulated other comprehensive loss were recognized in our consolidated statements of income as follows:

	Three Months Ended March 31
	2024		2023
	(in millions of dollars)
Net Unrealized Loss on Securities
Net Investment Gain (Loss)
Net Gain (Loss) on Sales on Securities	$	(15.8)	$	0.3
Income Tax Expense (Benefit)	(3.4)		0.1
Total	$	(12.4)	$	0.2
Net Gain (Loss) on Derivatives
Net Investment Income
Gain on Interest Rate Swaps and Forwards	$	5.8	$	10.4
Loss on Foreign Exchange Contracts	(0.1)		—
Net Investment Gain (Loss)
Loss on Foreign Exchange Contracts	(0.1)		—
	5.6		10.4
Income Tax Expense	1.2		2.2
Total	$	4.4	$	8.2
Unrecognized Pension and Postretirement Benefit Costs
Other Expenses
Amortization of Net Actuarial Loss	$	(4.2)	$	(1.8)
Amortization of Prior Service Credit	0.1		0.1
	(4.1)		(1.7)
Income Tax Benefit	(0.9)		(0.4)
Total	$	(3.2)	$	(1.3)