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 carrying amount of investments which do not generate any income.

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

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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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 accumulated unrealized gain on investments in debt securities classified as held-to-maturity.

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Amount of accumulated unrealized loss on investments in debt securities classified as held-to-maturity.

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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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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 securities categorized as Held-to-maturity 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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INVESTMENT OPERATIONS - Narrative (Details)	1 Months Ended	11 Months Ended	12 Months Ended
INVESTMENT OPERATIONS - Narrative (Details)	Jan. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2016 USD ($) position	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Available-for-sale securities
Minimum percentage of underlying collateral guaranteed by third party			97.00%
Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer		$ 0	$ 1,196,101,000	$ 0
Number of positions \| position			2,375
Fair Value		33,736,825,000	$ 36,328,836,000	33,736,825,000
Available-for-sale securities, amortized cost		36,612,808,000	37,991,304,000	36,612,808,000
Total OTTI Recognized in OCI		0	0
Non-income producing investments			39,500,000
Policy loans		1,699,508,000	$ 1,650,240,000	1,699,508,000
Interest rate on collateral loans on life insurance policies (as a percent)			13.64%
Successor \| Minimum
Available-for-sale securities
Interest rate on standard policy loans (as a percent)			3.00%
Successor \| Maximum
Available-for-sale securities
Interest rate on standard policy loans (as a percent)			8.00%
Successor \| Below investment grade
Available-for-sale securities
Fair Value			$ 2,000,000,000
Available-for-sale securities, amortized cost			2,000,000,000
Securities in trading portfolio			263,100,000
Securities not publicly traded			354,000,000
Predecessor
Available-for-sale securities
Total OTTI Recognized in OCI	$ 0				$ 0
Residential mortgage-backed securities \| Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer		0	4,117,000	0
Fair Value		1,765,273,000	1,889,607,000	1,765,273,000
Available-for-sale securities, amortized cost		1,773,099,000	1,904,165,000	1,773,099,000
Commercial mortgage-backed securities \| Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer		0	4,013,000	0
Fair Value		1,285,864,000	1,782,497,000	1,285,864,000
Available-for-sale securities, amortized cost		1,327,288,000	1,820,644,000	1,327,288,000
Other asset-backed securities \| Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer		0	11,407,000	0
Fair Value		797,051,000	1,211,533,000	797,051,000
Available-for-sale securities, amortized cost		813,056,000	1,210,490,000	813,056,000
States, municipals, and political subdivisions \| Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer			41,749,000
Fair Value		1,603,600,000	1,656,503,000	1,603,600,000
Available-for-sale securities, amortized cost		1,729,732,000	1,760,837,000	1,729,732,000
Corporate securities \| Successor
Available-for-sale securities
Continuous unrealized loss position, 12 months or longer		0	1,114,635,000	0
Fair Value		25,778,657,000	27,224,649,000	25,778,657,000
Available-for-sale securities, amortized cost		28,433,530,000	28,655,364,000	28,433,530,000
Fixed maturities \| Successor
Available-for-sale securities
Fair Value		32,843,049,000	35,356,717,000	32,843,049,000
Available-for-sale securities, amortized cost		35,725,810,000	37,005,251,000	35,725,810,000
Securities in trading portfolio		2,700,000,000	2,600,000,000	2,700,000,000
Total OTTI Recognized in OCI			0	0
Gross Unrecognized Holding Gains		0	30,385,000	0
Unrecognized holding loss, held-to-maturity		$ 78,314,000	$ 67,222,000	$ 78,314,000