Medical Claims and Benefits Payable (Tables)

6 Months Ended

Jun. 30, 2018

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:



	June 30, 2018		December 31, 2017
	(In millions)
Fee-for-service claims incurred but not paid (IBNP)	$	1,510	$	1,717
Pharmacy payable	116		112
Capitation payable	49		67
Other	245		296
	$	1,920	$	2,192

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 amounts 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.



	Six Months Ended June 30,
	2018			2017
	(Dollars in millions)
Medical claims and benefits payable, beginning balance	$	2,192		$	1,929
Components of medical care costs related to:
Current period	7,794			8,633
Prior periods	(222		)	(31		)
Total medical care costs	7,572			8,602

Change in non-risk provider payables	56			(114		)

Payments for medical care costs related to:
Current period	6,248			6,883
Prior periods	1,652			1,457
Total paid	7,900			8,340
Medical claims and benefits payable, ending balance	$	1,920		$	2,077