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LIABILITIES FOR INSURANCE PRODUCTS - GUARANTEED MINIMUM CREDITING RATES (Details) $ in Millions	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jan. 01, 2021 USD ($)
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 15,481.8	$ 15,234.2	$ 15,079.7	$ 12,367.7
0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 3,143.6		$ 3,049.6
0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 2,232.2		$ 2,400.2
3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 145.4		$ 151.3
5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,606.4		$ 1,647.3
At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	1,996.6		2,119.7
At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 144.9		$ 150.8
1-50 basis points above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0001		0.0001
1-50 basis points above | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0050		0.0050
1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 671.1		$ 708.5
1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	77.6		125.4
1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0.5		$ 0.5
51-150 basis points above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0051		0.0051
51-150 basis points above | Maximum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0150		0.0150
51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 481.9		$ 30.5
51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	157.5		154.9
51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0.0		$ 0.0
Greater than 150 basis points above | Minimum
Policyholder Account Balance [Line Items]
Policyholder account balance, above guaranteed minimum crediting rate	0.0150		0.0150
Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 384.2		$ 663.3
Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.5		0.2
Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Contracts Excluding Fixed Indexed Annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	5,521.2		5,601.1
Contracts Excluding Fixed Indexed Annuities | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	3,747.9		3,917.8
Contracts Excluding Fixed Indexed Annuities | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	749.2		834.4
Contracts Excluding Fixed Indexed Annuities | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	639.4		185.4
Contracts Excluding Fixed Indexed Annuities | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	384.7		663.5
Fixed interest annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	2,234.7		2,323.7
Fixed interest annuities | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 642.2		$ 557.4
Fixed interest annuities | 0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
Fixed interest annuities | 0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
Fixed interest annuities | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,502.9		$ 1,674.2
Fixed interest annuities | 3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
Fixed interest annuities | 3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
Fixed interest annuities | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 89.6		$ 92.1
Fixed interest annuities | 5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
Fixed interest annuities | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,687.7		$ 1,907.6
Fixed interest annuities | At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	122.3		163.8
Fixed interest annuities | At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	1,475.8		1,651.7
Fixed interest annuities | At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	89.6		92.1
Fixed interest annuities | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	284.5		342.0
Fixed interest annuities | 1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	257.4		319.6
Fixed interest annuities | 1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	27.1		22.4
Fixed interest annuities | 1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Fixed interest annuities | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	183.4		30.0
Fixed interest annuities | 51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	183.4		29.9
Fixed interest annuities | 51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.1
Fixed interest annuities | 51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Fixed interest annuities | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	79.1		44.1
Fixed interest annuities | Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	79.1		44.1
Fixed interest annuities | Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Fixed interest annuities | Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	141.4		155.1
Other annuities | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 61.7		$ 79.4
Other annuities | 0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
Other annuities | 0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
Other annuities | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 46.4		$ 39.8
Other annuities | 3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
Other annuities | 3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
Other annuities | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 33.3		$ 35.9
Other annuities | 5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
Other annuities | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 116.1		$ 124.9
Other annuities | At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	36.4		49.2
Other annuities | At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	46.4		39.8
Other annuities | At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	33.3		35.9
Other annuities | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	25.3		30.2
Other annuities | 1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	25.3		30.2
Other annuities | 1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | 1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | 51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | 51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | 51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other annuities | Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Interest-sensitive life
Policyholder Account Balance [Line Items]
Policyholder account balances	1,344.8		1,312.9
Interest-sensitive life | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 662.8		$ 627.9
Interest-sensitive life | 0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
Interest-sensitive life | 0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
Interest-sensitive life | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 659.7		$ 662.1
Interest-sensitive life | 3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
Interest-sensitive life | 3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
Interest-sensitive life | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 22.3		$ 22.9
Interest-sensitive life | 5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
Interest-sensitive life | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 495.0		$ 434.6
Interest-sensitive life | At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	22.0		8.1
Interest-sensitive life | At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	451.2		404.1
Interest-sensitive life | At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	21.8		22.4
Interest-sensitive life | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	88.2		103.5
Interest-sensitive life | 1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	37.2		0.0
Interest-sensitive life | 1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	50.5		103.0
Interest-sensitive life | 1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.5		0.5
Interest-sensitive life | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	456.0		155.4
Interest-sensitive life | 51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	298.5		0.6
Interest-sensitive life | 51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	157.5		154.8
Interest-sensitive life | 51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Interest-sensitive life | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	305.6		619.4
Interest-sensitive life | Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	305.1		619.2
Interest-sensitive life | Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.5		0.2
Interest-sensitive life | Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements
Policyholder Account Balance [Line Items]
Policyholder account balances	1,408.2		1,408.0
Funding agreements | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,408.2		$ 1,408.0
Funding agreements | 0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
Funding agreements | 0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
Funding agreements | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0.0		$ 0.0
Funding agreements | 3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
Funding agreements | 3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
Funding agreements | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0.0		$ 0.0
Funding agreements | 5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
Funding agreements | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 1,408.2		$ 1,408.0
Funding agreements | At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	1,408.2		1,408.0
Funding agreements | At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | 51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Funding agreements | Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other
Policyholder Account Balance [Line Items]
Policyholder account balances	392.1		401.4
Other | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 368.7		$ 376.9
Other | 0.00%-2.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	0.00%		0.00%
Other | 0.00%-2.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	2.99%		2.99%
Other | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 23.2		$ 24.1
Other | 3.00%-4.99% | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	3.00%		3.00%
Other | 3.00%-4.99% | Maximum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	4.99%		4.99%
Other | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 0.2		$ 0.4
Other | 5.00% and greater | Minimum
Policyholder Account Balance [Line Items]
Range of guaranteed minimum crediting rates	5.00%		5.00%
Other | At guaranteed minimum
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 40.9		$ 42.7
Other | At guaranteed minimum | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	17.5		18.2
Other | At guaranteed minimum | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	23.2		24.1
Other | At guaranteed minimum | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.2		0.4
Other | 1-50 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	351.2		358.7
Other | 1-50 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	351.2		358.7
Other | 1-50 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | 1-50 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | 51-150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | 51-150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | 51-150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | 51-150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | Greater than 150 basis points above
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | Greater than 150 basis points above | 0.00%-2.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | Greater than 150 basis points above | 3.00%-4.99%
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Other | Greater than 150 basis points above | 5.00% and greater
Policyholder Account Balance [Line Items]
Policyholder account balances	0.0		0.0
Fixed indexed annuities
Policyholder Account Balance [Line Items]
Policyholder account balances	$ 9,960.6		$ 9,478.6

X

- Definition

Value above guaranteed minimum crediting rate on policyholder account balance.

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- Definition

Guaranteed minimum crediting rate on policyholder account balance.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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X

- Definition

Amount due to policyholder. Includes, but is not limited to, unpaid policy dividend, retrospective refund, and undistributed earnings on participating business. Excludes future policy benefit and claim expense.

+ References

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-Subparagraph (c)
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-URI https://asc.fasb.org//1943274/2147480081/944-40-50-7A

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