Restricted Investments, Non-current

12 Months Ended

Dec. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Pursuant to the regulations governing our Health Plans segment subsidiaries, we maintain statutory deposits and deposits required by government authorities primarily in certificates of deposit and U.S. treasury securities. We also maintain restricted investments as protection against the insolvency of certain capitated providers. The use of these funds is limited as required by regulation in the various states in which we operate, or as needed in the event of insolvency of capitated providers. Therefore, such investments are reported as non-current “Restricted investments” in the accompanying consolidated balance sheets. We have the ability to hold these restricted investments until maturity, and as a result, we would not expect the value of these investments to decline significantly due to a sudden change in market interest rates. The following table presents the balances of restricted investments:



	December 31,
	2017		2016
	(In millions)
Florida	$	31	$	22
New Mexico	43		43
Ohio	12		12
Puerto Rico	10		10
Other	23		23
Total Health Plans segment	$	119	$	110

The contractual maturities of our held-to-maturity restricted investments, which are carried at amortized cost, which approximates fair value, as of December 31, 2017 are summarized below.



	Amortized Cost		Estimated Fair Value
	(In millions)
Due in one year or less	$	115	$	115
Due after one year through five years	4		4
	$	119	$	119