Global Health Care Medical Costs Payable (Tables) - Global Health Benefits Segment [Member]

6 Months Ended

Jun. 30, 2016

Liability For Unpaid Claims And Claims Adjustment Expense [Line Items]

Schedule of medical costs payable balance

	June 30,		December 31,
(In millions)	2016		2015
Incurred but not yet reported	$	1,956	$	1,757
Reported claims in process		423		470
Physician incentives and other medical care expenses and services payable		198		128
Global Health Care medical costs payable	$	2,577	$	2,355

Schedule of medical costs payable activity

	For the period ended
	June 30,		December 31,
(In millions)	2016		2015
Balance at January 1,	$	2,355	$	2,180
Less: Reinsurance and other amounts recoverable		243		252
Balance at January 1, net		2,112		1,928
Incurred costs related to:
Current year		9,621		18,564
Prior years		(83)		(210)
Total incurred		9,538		18,354
Paid costs related to:
Current year		7,580		16,588
Prior years		1,701		1,582
Total paid		9,281		18,170
Ending Balance, net		2,369		2,112
Add: Reinsurance and other amounts recoverable		208		243
Ending Balance	$	2,577	$	2,355