Derivatives (Tables)

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The fair values of derivatives, including derivatives embedded in FIA and IUL contracts, are presented in the Consolidated Balance Sheets as follows:

($ in millions)	December 31,
	2023		2022
Assets
Derivatives, reported in Short-term and other investments	$	19.0	$	6.8
Liabilities
FIA - embedded derivatives, reported in Policyholders' account balances	86.3		91.0
IUL - embedded derivatives, reported in Policyholders' account balances	3.6		1.2

Schedule of Derivative Instruments, Gain (Loss)

The changes in fair value of derivatives included in the Consolidated Statements of Operations and Comprehensive Income (Loss) were as follows:

($ in millions)	Years Ended December 31,
	2023		2022		2021
Change in fair value of derivatives:(1)
Net investment gains (losses)	$	7.4	$	(9.7)	$	8.7
Change in fair value of embedded derivatives:
Net investment gains (losses)	(7.2)		14.9		(11.3)

(1)    Includes gains (losses) recognized at option expiration or early termination and changes in fair value for open positions.

Schedule of Financing Receivable Credit Quality Indicators

The notional amount and fair value of call options by counterparty and each counterparty's long-term credit ratings were as follows:

($ in millions)	December 31, 2023						December 31, 2022
	Credit Rating		Notional		Fair		Notional		Fair
Counterparty	S&P	Moody's	Amount		Value		Amount		Value
Bank of America, N.A.	A+	Aa1	$	270.2	$	15.5	$	245.5	$	6.5
Credit Suisse International	A+	A3*+	—		—		—		—
Societe Generale	A	A1	—		—		—		—
Barclays Bank PLC	A+	A1	89.2		3.5		67.5		0.3
Citigroup	BBB+	A3	—		—		—		—
Total			$	359.4	$	19.0	$	313.0	$	6.8