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

6 Months Ended

Jun. 30, 2015

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

Schedule of medical costs payable balance

	June 30,		December 31,
(In millions)	2015		2014
Incurred but not yet reported	$	1,862	$	1,777
Reported claims in process		431		288
Physician incentives and other medical care expenses and services payable		139		115
Medical costs payable	$	2,432	$	2,180

Schedule of medical costs payable activity

	For the period ended
	June 30,		December 31,
(In millions)	2015		2014
Balance at January 1,	$	2,180	$	2,050
Less: Reinsurance and other amounts recoverable		252		194
Balance at January 1, net		1,928		1,856
Incurred costs related to:
Current year		9,363		16,853
Prior years		(182)		(159)
Total incurred		9,181		16,694
Paid costs related to:
Current year		7,394		14,966
Prior years		1,513		1,656
Total paid		8,907		16,622
Ending Balance, net		2,202		1,928
Add: Reinsurance and other amounts recoverable		230		252
Ending Balance	$	2,432	$	2,180