DAI-ICHI MERGER (Details) (USD $)	0 Months Ended
	Feb. 01, 2015	Mar. 31, 2015
Significant acquisitions
Goodwill		$ 735,712,000
Assets
Goodwill		735,712,000
Other intangibles	683,000,000
Protective Life Corporation | Dai-ichi Life
Significant acquisitions
Per share merger consideration (in dollars per share)	$ 70
Aggregate cash consideration	5,600,000,000
Goodwill	735,712,000
Expected tax deductible goodwill	0
Assets
Fixed maturities	38,363,025,000
Equity securities	745,512,000
Mortgage loans	5,580,229,000
Investment real estate	7,456,000
Policy loans	1,751,872,000
Other long-term investments	686,507,000
Short-term investments	316,167,000
Total investments	47,450,768,000
Cash	462,710,000
Accrued investment income	484,021,000
Accounts and premiums receivable	112,182,000
Reinsurance receivables	5,724,020,000
Value of business acquired	1,276,886,000
Goodwill	735,712,000
Other intangibles	683,000,000
Property and equipment	104,364,000
Other assets	120,762,000
Income tax receivable	15,458,000
Assets related to separate accounts
Variable annuity	12,970,587,000
Variable universal life	819,188,000
Total assets	70,959,658,000
Liabilities
Future policy and benefit claims	30,195,841,000
Unearned premiums	682,183,000
Total policy liabilities and accruals	30,878,024,000
Stable value product account balances	1,932,277,000
Annuity account balances	10,941,661,000
Other policyholders' funds	1,388,083,000
Other liabilities	2,188,863,000
Deferred income taxes	1,535,556,000
Non-recourse funding obligation	621,798,000
Repurchase program borrowings	50,000,000
Debt	1,519,211,000
Subordinated debt securities	560,351,000
Liabilities related to separate accounts
Variable annuity	12,970,587,000
Variable universal life	819,188,000
Total liabilities	65,405,599,000
Net assets acquired	$ 5,554,059,000