SCHEDULE II - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Balance Sheets) (Details) - USD ($) $ in Millions		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Derivative investments		$ 1,537	$ 1,860
Other investments		1,778	1,709
Cash and invested cash		3,146	3,919	$ 2,364	$ 4,230
Other assets		3,483	2,845
Total assets		251,937	253,377
Liabilities
Short-term debt			250
Long-term debt		5,582	5,270
Payables for collateral on investments		4,657	4,409
Other liabilities		5,565	5,776
Total liabilities		$ 238,320	$ 237,637
Contingencies and Commitments (See Note 13)
Stockholders Equity
Common stock - 800,000,000 shares authorized		$ 6,298	$ 6,622
Retained earnings		6,474	6,022
Accumulated other comprehensive income (loss)		845	3,096
Total stockholders' equity		13,617	15,740	13,452
Total Liabilities and Stockholders' Equity		251,937	253,377
Parent Company [Member]
Assets
Investments in subsidiaries	[1]	16,499	18,488
Derivative investments		253	298
Other investments		40	5
Cash and invested cash		681	666	$ 1,558	$ 844
Loans and accrued interest to subsidiaries	[2]	2,522	2,495
Other assets		32	47
Total assets		20,027	21,999
Liabilities
Common dividends payable		61	51
Short-term debt			250
Long-term debt		5,331	5,021
Loans from subsidiaries	[3]	521	453
Payables for collateral on investments		94	96
Other liabilities		403	388
Total liabilities		$ 6,410	$ 6,259
Contingencies and Commitments (See Note 13)
Stockholders Equity
Common stock - 800,000,000 shares authorized		$ 6,298	$ 6,622
Retained earnings		6,474	6,022
Accumulated other comprehensive income (loss)		845	3,096
Total stockholders' equity		13,617	15,740
Total Liabilities and Stockholders' Equity		$ 20,027	$ 21,999

[1] Eliminated in consolidation.

[2] Eliminated in consolidation.

[3] Eliminated in consolidation.