Represents the interest rate on collateral loans on life insurance policies.

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Represents the interest rate on standard insurance policy loans receivable.

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Represents the minimum percentage of the underlying collateral guaranteed by a third party.

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Represents the value of securities that are not publicly traded.

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Represents the amount of payments made or required to be made related to the guarantee.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of accumulated unrealized loss on investments in debt and equity securities classified as available-for-sale that have been in a continuous loss position for twelve months or longer.

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Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

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Amount of unrecognized gain before loss on investments in held-to-maturity securities.

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Amount of unrecognized loss before gain on investments in held-to-maturity securities. Excludes write-down for other than temporary impairment (OTTI).

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Amount before allowance of loans made to policy and contract holders using their life insurance contracts' cash value or separate accounts as collateral. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums over and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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The amount by which the fair value of an investment in debt and equity securities categorized as Available-for-sale is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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The reporting entity's maximum amount of exposure to loss as a result of its involvement with the Variable Interest Entity (VIE).

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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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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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INVESTMENT OPERATIONS - Additional Information (Details)	1 Months Ended	11 Months Ended	12 Months Ended
	Jan. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) subsidiary	Dec. 31, 2016 USD ($) subsidiary position	Dec. 31, 2014 USD ($)
Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			$ 1,196,195,000
Number of positions in unrealized loss position \| position			2,375
Available-for-sale securities, fair value		$ 33,847,196,000	$ 36,570,665,000
Available-for-sale securities, amortized cost		36,724,217,000	38,233,986,000
Held-to-maturity securities, unrecognized holding gain			30,400,000
Held-to-maturity securities, unrecognized holding losses		78,300,000	67,200,000
Non-income producing securities			39,500,000
Policy loans		1,699,508,000	$ 1,650,240,000
Interest rate on collateral loans on life insurance policies			13.64%
Number of wholly owned subsidiaries that were determined to be VIEs \| subsidiary			2
Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		$ 0
Red Mountain \| Successor
Variable Interest Entities
Number of wholly owned subsidiaries that were determined to be VIEs \| subsidiary		1
Ownership through an affiliate (as a percent)			100.00%
Risk of loss related to the VIE limited to the entity's investment			$ 10,000
Payments made			$ 0
Red Mountain \| Predecessor
Variable Interest Entities
Number of wholly owned subsidiaries that were determined to be VIEs \| subsidiary		1
Steel City \| Successor
Variable Interest Entities
Ownership through an affiliate (as a percent)			100.00%
Risk of loss related to the VIE limited to the entity's investment			$ 10,000
Payments made			0
Fixed maturities \| Successor
Variable Interest Entities
Trading securities		$ 2,700,000,000	2,600,000,000
Other-than-temporary impairments		0	0
Available-for-sale securities, fair value		32,909,201,000	35,543,477,000
Available-for-sale securities, amortized cost		35,793,000,000	37,192,864,000
Fixed maturities \| Predecessor
Variable Interest Entities
Other-than-temporary impairments	$ 0			$ 0
Equity securities \| Successor
Variable Interest Entities
Trading securities		8,300,000	7,100,000
Other-than-temporary impairments		0	0
Gross unrealized losses, 12 Months or More			6,412,000
Available-for-sale securities, fair value		731,004,000	747,406,000
Available-for-sale securities, amortized cost		724,226,000	761,340,000
Equity securities \| Predecessor
Variable Interest Entities
Other-than-temporary impairments	$ 0			$ 0
Gross unrealized losses, 12 Months or More		0
Short-term investments \| Successor
Variable Interest Entities
Trading securities		61,700,000	52,600,000
Available-for-sale securities, fair value		206,991,000	279,782,000
Available-for-sale securities, amortized cost		206,991,000	279,782,000
Residential mortgage-backed securities \| Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			4,117,000
Available-for-sale securities, fair value		1,765,273,000	1,898,483,000
Available-for-sale securities, amortized cost		1,773,099,000	1,913,413,000
Residential mortgage-backed securities \| Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		0
Commercial mortgage-backed securities \| Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			4,013,000
Available-for-sale securities, fair value		1,286,887,000	1,811,470,000
Available-for-sale securities, amortized cost		1,328,317,000	1,850,620,000
Commercial mortgage-backed securities \| Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		0
Other asset-backed securities \| Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			$ 11,407,000
Percentage of underlying collateral of student-loan backed auction rate securities guaranteed by the Federal Family Education Loan Program (at least)			97.00%
Available-for-sale securities, fair value		797,051,000	$ 1,211,533,000
Available-for-sale securities, amortized cost		813,056,000	1,210,490,000
Other asset-backed securities \| Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		0
States, municipals, and political subdivisions \| Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			41,749,000
Available-for-sale securities, fair value		1,603,600,000	1,656,503,000
Available-for-sale securities, amortized cost		1,729,732,000	1,760,837,000
States, municipals, and political subdivisions \| Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		0
Corporate securities \| Successor
Variable Interest Entities
Gross unrealized losses, 12 Months or More			1,114,729,000
Available-for-sale securities, fair value		25,843,786,000	27,371,565,000
Available-for-sale securities, amortized cost		28,499,691,000	28,801,768,000
Corporate securities \| Predecessor
Variable Interest Entities
Gross unrealized losses, 12 Months or More		$ 0
Below investment grade \| Successor
Variable Interest Entities
Trading securities			263,100,000
Available-for-sale securities, fair value			2,000,000,000
Available-for-sale securities, amortized cost			2,000,000,000
Securities not publicly traded			$ 355,100,000
Minimum \| Successor
Variable Interest Entities
Interest rate on standard policy loans			3.00%
Maximum \| Successor
Variable Interest Entities
Interest rate on standard policy loans			8.00%