Accumulated Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2026

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

Schedule of Accumulated Other Comprehensive Income (Loss)

Components of our accumulated other comprehensive income (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 Loss on Derivatives		Foreign Currency Translation Adjustment		Unrecognized Pension and Postretirement Benefit Costs		Total
	(in millions of dollars)
Balance at March 31, 2026	$	(2,432.3)	$	1,395.1	$	(282.1)	$	(268.6)	$	(207.6)	$	(1,795.5)
Other Comprehensive Income (Loss) Before Reclassifications	131.2		(220.6)		4.1		1.9		(0.1)		(83.5)
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	8.3		—		(1.2)		—		1.9		9.0
Net Other Comprehensive Income (Loss)	139.5		(220.6)		2.9		1.9		1.8		(74.5)
Balance at June 30, 2026	$	(2,292.8)	$	1,174.5	$	(279.2)	$	(266.7)	$	(205.8)	$	(1,870.0)
Balance at March 31, 2025	$	(2,333.2)	$	1,019.1	$	(225.2)	$	(300.7)	$	(338.8)	$	(2,178.8)
Other Comprehensive Income (Loss) Before Reclassifications	53.6		39.8		(58.3)		80.0		(4.6)		110.5
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	25.9		—		(1.5)		—		3.2		27.6
Net Other Comprehensive Income (Loss)	79.5		39.8		(59.8)		80.0		(1.4)		138.1
Balance at June 30, 2025	$	(2,253.7)	$	1,058.9	$	(285.0)	$	(220.7)	$	(340.2)	$	(2,040.7)
Balance at December 31, 2025	$	(2,003.1)	$	929.9	$	(278.8)	$	(245.6)	$	(210.9)	$	(1,808.5)
Other Comprehensive Income (Loss) Before Reclassifications	(300.1)		244.6		2.1		(21.1)		1.1		(73.4)
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	10.4		—		(2.5)		—		4.0		11.9
Net Other Comprehensive Income (Loss)	(289.7)		244.6		(0.4)		(21.1)		5.1		(61.5)
Balance at June 30, 2026	$	(2,292.8)	$	1,174.5	$	(279.2)	$	(266.7)	$	(205.8)	$	(1,870.0)
Balance at December 31, 2024	$	(2,755.2)	$	1,185.4	$	(270.7)	$	(343.0)	$	(340.2)	$	(2,523.7)
Other Comprehensive Income (Loss) Before Reclassifications	319.2		(126.5)		(10.8)		122.3		(6.4)		297.8
Amounts Reclassified from Accumulated Other Comprehensive Income or Loss	182.3		—		(3.5)		—		6.4		185.2
Net Other Comprehensive Income (Loss)	501.5		(126.5)		(14.3)		122.3		—		483.0
Balance at June 30, 2025	$	(2,253.7)	$	1,058.9	$	(285.0)	$	(220.7)	$	(340.2)	$	(2,040.7)
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 June 30				Six Months Ended June 30
	2026		2025		2026		2025
	(in millions of dollars)
Net Unrealized Loss on Securities
Net Investment Loss on Fixed Maturity Securities
Net Loss on Sales	$	(7.5)	$	(13.5)	$	(8.0)	$	(58.2)
Impairment Loss	(3.0)		(8.5)		(11.1)		(160.9)
Change in Allowance for Credit Losses1	—		(10.6)		5.9		(11.6)
	(10.5)		(32.6)		(13.2)		(230.7)
Income Tax Benefit	(2.2)		(6.7)		(2.8)		(48.4)
Total	$	(8.3)	$	(25.9)	$	(10.4)	$	(182.3)
Net Loss on Derivatives
Net Investment Income
Gain on Interest Rate Swaps and Forwards	$	0.6	$	2.5	$	1.4	$	4.7
Net Investment Gain (Loss)
Loss on Interest Rate Swaps	—		(0.4)		—		—
Gain (Loss) on Foreign Currency Interest Rate Swaps	0.9		(0.2)		1.8		(0.3)
	1.5		1.9		3.2		4.4
Income Tax Expense	0.3		0.4		0.7		0.9
Total	$	1.2	$	1.5	$	2.5	$	3.5
Unrecognized Pension and Postretirement Benefit Costs
Other Expenses
Amortization of Net Actuarial Loss	$	(2.5)	$	(4.1)	$	(5.2)	$	(8.2)
Amortization of Prior Service Credit	—		—		0.1		0.1
	(2.5)		(4.1)		(5.1)		(8.1)
Income Tax Benefit	(0.6)		(0.9)		(1.1)		(1.7)
Total	$	(1.9)	$	(3.2)	$	(4.0)	$	(6.4)
1Includes change in allowance on securities impaired, sold or otherwise disposed during the period.