Accumulated Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of accumulated other comprehensive income (loss)

The following table reconciles these components.

($ in millions)	Net Unrealized Investment  Gains (Losses)  on Fixed Maturity Securities(1)		Net Reserve Remeasurements Attributable to Discount Rates(1)		Net Funded Status of Benefit Plans(1)		Total(1)
Beginning balance, January 1, 2023	$	(449.6)	$	59.0	$	(8.8)	$	(399.4)
Other comprehensive loss before reclassifications	91.3		(41.2)		—		50.1
Amounts reclassified from AOCI(2)	1.9		—		—		1.9
Net current period other comprehensive loss	93.2		(41.2)		—		52.0
Ending balance, March 31, 2023	$	(356.4)	$	17.8	$	(8.8)	$	(347.4)
Beginning balance, January 1, 2022	$	347.1	$	(386.9)	$	(10.2)	$	(50.0)
Other comprehensive loss before reclassifications	(335.9)		181.5		—		(154.4)
Amounts reclassified from AOCI(2)	1.8		—		—		1.8
Net current period other comprehensive loss	(334.1)		181.5		—		(152.6)
Ending balance, March 31, 2022	$	13.0	$	(205.4)	$	(10.2)	$	(202.6)

(1)All amounts are net of tax.

(2)The pretax amounts reclassified from AOCI, $(2.4) million and $(2.3) million, are included in Net investment gains losses and the related income tax benefits, $(0.5) million and $(0.5) million, are included in income tax expense in the Consolidated Statements of Operations for the three months ended March 31, 2023 and 2022, respectively.