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

6 Months Ended

Jun. 30, 2017

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
(In millions)	2017		2016		2017		2016
Beginning balance	$	2,770	$	2,646	$	2,532	$	2,355
Less: Reinsurance and other amounts recoverable		256		207		275		243
Beginning balance, net		2,514		2,439		2,257		2,112
Incurred costs related to:
Current year		4,986		4,796		10,147		9,621
Prior years		(62)		(19)		(238)		(83)
Total incurred		4,924		4,777		9,909		9,538
Paid costs related to:
Current year		4,674		4,595		7,893		7,580
Prior years		175		252		1,684		1,701
Total paid		4,849		4,847		9,577		9,281
Ending balance, net		2,589		2,369		2,589		2,369
Add: Reinsurance and other amounts recoverable		259		208		259		208
Ending balance	$	2,848	$	2,577	$	2,848	$	2,577

	Three Months Ended
(Dollars in millions)	June 30, 2017			June 30, 2016
		$	%⁽¹⁾			$	%⁽²⁾
Actual completion factors	$	30	0.2	%	$	12	0.1	%
Medical cost trend		23	0.1			-	-
Other⁽³⁾		9	-			7	-
Total favorable (unfavorable) variance	$	62	0.3	%	$	19	0.1	%
	Six Months Ended
(Dollars in millions)	June 30, 2017			June 30, 2016
		$	%⁽¹⁾			$	%⁽²⁾
Actual completion factors	$	108	0.6	%	$	63	0.3	%
Medical cost trend		121	0.6			28	0.1
Other⁽³⁾		9	-			(8)	-
Total favorable (unfavorable) variance	$	238	1.2	%	$	83	0.4	%

(1) Percentage of current year incurred costs as reported for the year ended December 31, 2016.
(2) Percentage of current year incurred costs as reported for the year ended December 31, 2015.
(3) Other amounts in 2017 primarily related to an increase in the 2016 reinsurance reimbursement rate from the Centers for Medicare and Medicaid Services ("CMS") under the Patient Protection and Affordable Care Act (the "Health Care Reform Act”). Other amounts in 2016 primarily related to increased medical costs in the Government segment resulting from additional provider risk sharing.