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Derivatives (Tables) | 12 Months Ended
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Dec. 31, 2022
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,
|  | 2022 |  | 2021
Assets |  |  |  |
Derivatives, reported in Short-term and other investments |  | $ | 6.8 |  |  | $ | 10.7 |
Liabilities |  |  |  |
FIA - embedded derivatives, reported in Other policyholder funds |  | 91.0 |  |  | 106.6 |
IUL - embedded derivatives, reported in Investment contract and policy reserves |  | 1.2 |  |  | 2.1 |
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,
|  | 2022 |  | 2021 |  | 2020
Change in fair value of derivatives:(1) |  |  |  |  |  |
Net investment gains (losses) |  | $ | (9.7) |  |  | $ | 8.7 |  |  | $ | 0.2 |
Change in fair value of embedded derivatives: |  |  |  |  |  |
Net investment gains (losses) |  | 14.9 |  |  | (11.3) |  |  | (12.1) |
(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, 2022 |  | December 31, 2021
|  | Credit Rating |  | Notional |  | Fair |  | Notional |  | Fair
Counterparty |  | S&P |  | Moody's |  | Amount |  | Value |  | Amount |  | Value
Bank of America, N.A. |  | A+ |  | Aa2 |  | $ | 245.5 |  |  | $ | 6.5 |  |  | $ | 193.0 |  |  | $ | 6.3 |
Barclays Bank PLC |  | A |  | A1 |  | 67.5 |  |  | 0.3 |  |  | 98.7 |  |  | 4.1 |
Citigroup Inc. |  | BBB+ |  | A3 |  | — |  |  | — |  |  | — |  |  | — |
Credit Suisse International |  | A- |  | A3 |  | — |  |  | — |  |  | 14.0 |  |  | 0.3 |
Societe Generale |  | A |  | A1 |  | — |  |  | — |  |  | — |  |  | — |
Total |  |  |  |  |  | $ | 313.0 |  |  | $ | 6.8 |  |  | $ | 305.7 |  |  | $ | 10.7 |

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- Definition Tabular disclosure of the location and amount of derivative instruments and nonderivative instruments designated as hedging instruments reported before netting adjustments, and the amount of gain (loss) on derivative instruments and nonderivative instruments designated and qualified as hedging instruments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4E -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624181-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5618551-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 + Details
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- Definition Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959 + Details
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