Medical Claims and Benefits Payable (Tables)

9 Months Ended

Sep. 30, 2016

Other Liabilities Disclosure [Abstract]

Schedule of liability for unpaid claims and claims adjustment expense

The following table provides the details of our medical claims and benefits payable (including amounts payable for the provision of long-term services and supports, or LTSS) as of the dates indicated.

	September 30, 2016		December 31, 2015
	(In millions)
Fee-for-service claims incurred but not paid (IBNP)	$	1,333	$	1,191
Pharmacy payable	114		88
Capitation payable	27		140
Other	397		266
	$	1,871	$	1,685

Components of change in medical claims and benefits payable

The following table presents the components of the change in our medical claims and benefits payable for the periods indicated. The amounts presented for “Components of medical care costs related to: Prior periods” represent the amount by which our original estimate of medical claims and benefits payable at the beginning of the period were more than the actual amount of the liability based on information (principally the payment of claims) developed since that liability was first reported.

	Nine Months Ended September 30, 2016			Year Ended December 31, 2015
	(Dollars in millions)
Medical claims and benefits payable, beginning balance	$	1,685		$	1,201
Components of medical care costs related to:
Current period	11,120			11,935
Prior periods	(190		)	(141		)
Total medical care costs	10,930			11,794
Change in non-risk provider payables	70			48
Payments for medical care costs related to:
Current period	9,536			10,448
Prior periods	1,278			910
Total paid	10,814			11,358
Medical claims and benefits payable, ending balance	$	1,871		$	1,685
Benefit from prior period as a percentage of:
Balance at beginning of period	11.3		%	11.8		%
Premium revenue, trailing twelve months	1.2		%	1.1		%
Medical care costs, trailing twelve months	1.3		%	1.2		%