Consolidated Statements of Stockholders' Equity $ in Millions	USD ($)
Balance, beginning of year at Dec. 31, 2013	$ 683
Balance, end of year at Dec. 31, 2014	683
Balance, beginning of year at Dec. 31, 2013	2,145
Additional Paid-In Capital
Stock-based compensation	6
Balance, end of year at Dec. 31, 2014	2,151
Balance, beginning of year at Dec. 31, 2013	9,495
Retained Earnings (Accumulated Deficit)
Dividends paid to common stockholders	(541)
Net income (loss)	691
Balance, end of year at Dec. 31, 2014	9,645
Accumulated other comprehensive income (loss), beginning balance at Dec. 31, 2013	442
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss)	(42)
Accumulated other comprehensive income (loss), ending balance at Dec. 31, 2014	400
Balance, beginning of year at Dec. 31, 2013	(91)
Treasury Stock
Stock Based Compensation and Other	7
Balance, end of year at Dec. 31, 2014	(84)
Balance, beginning of year at Dec. 31, 2013	(23)
Notes Receivable for the Issuance of Common Stock
(Decrease) increase in notes receivable from the issuance of common stock	22
Balance, end of year at Dec. 31, 2014	(1)
Notes Receivable for the Issuance of Common Stock
Total stockholder's equty	12,794
Balance, end of year at Dec. 31, 2015	683
Additional Paid-In Capital
Stock-based compensation	2
Balance, end of year at Dec. 31, 2015	2,153
Retained Earnings (Accumulated Deficit)
Dividends paid to common stockholders	(811)
Net income (loss)	479	[1],[2]
Balance, end of year at Dec. 31, 2015	9,313
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss)	(715)
Accumulated other comprehensive income (loss), ending balance at Dec. 31, 2015	(315)
Treasury Stock
Stock Based Compensation and Other	6
Balance, end of year at Dec. 31, 2015	(78)
Notes Receivable for the Issuance of Common Stock
(Decrease) increase in notes receivable from the issuance of common stock	1
Balance, end of year at Dec. 31, 2015	0
Notes Receivable for the Issuance of Common Stock
Total stockholder's equty	11,756
Balance, end of year at Dec. 31, 2016	683
Additional Paid-In Capital
Stock-based compensation	20
Balance, end of year at Dec. 31, 2016	2,173
Retained Earnings (Accumulated Deficit)
Dividends paid to common stockholders	(813)
Net income (loss)	859	[1]
Balance, end of year at Dec. 31, 2016	9,359
Accumulated Other Comprehensive Income (Loss)
Other Comprehensive Income (Loss)	142
Accumulated other comprehensive income (loss), ending balance at Dec. 31, 2016	(173)
Treasury Stock
Stock Based Compensation and Other	5
Balance, end of year at Dec. 31, 2016	(73)
Notes Receivable for the Issuance of Common Stock
(Decrease) increase in notes receivable from the issuance of common stock	0
Total stockholder's equty	$ 11,969

[1] Net income (loss) in the first quarter of 2016 and the second quarter of 2015 included a charge related to the application of retroactive reinsurance accounting to adverse reserve development ceded under the 2010 A&EP Loss Portfolio Transfer in our Corporate & Other Non-Core segment.

[2] Net income (loss) in the fourth quarter of 2015 included a charge related to recognition of a premium deficiency in our long term care business.