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

3 Months Ended

Mar. 31, 2016

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

Schedule of medical costs payable balance

	March 31,		December 31,
(In millions)	2016		2015
Incurred but not yet reported	$	1,960	$	1,757
Reported claims in process		506		470
Physician incentives and other medical care expenses and services payable		180		128
Global Health Care medical costs payable	$	2,646	$	2,355

Schedule of medical costs payable activity

	For the period ended
	March 31,		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		4,825		18,564
Prior years		(64)		(210)
Total incurred		4,761		18,354
Paid costs related to:
Current year		2,985		16,588
Prior years		1,449		1,582
Total paid		4,434		18,170
Ending Balance, net		2,439		2,112
Add: Reinsurance and other amounts recoverable		207		243
Ending Balance	$	2,646	$	2,355