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MEDICARE PART D (Tables)
 12 Months Ended
Dec. 31, 2016
Insurance [Abstract]  
Balance Sheet Amounts Associated With Medicare Part D
The accompanying consolidated balance sheets include the following amounts associated with Medicare Part D as of December 31, 2016 and 2015. CMS subsidies/discounts in the table below include the reinsurance and low-income cost subsidies funded by CMS for which we assume no risk as well as brand name prescription drug discounts for Part D plan participants in the coverage gap funded by CMS and pharmaceutical manufacturers.
 
 
2016
 
2015
 
 
Risk
Corridor
Settlement
 
CMS
Subsidies/
Discounts
 
Risk
Corridor
Settlement
 
CMS
Subsidies/
Discounts
 
 
(in millions)
Other current assets
 
$
8

 
$
1,001

 
$
25

 
$
2,082

Trade accounts payable and accrued expenses
 
(158
)
 
(128
)
 
(47
)
 
(63
)
Net current (liability) asset
 
$
(150
)
 
$
873

 
$
(22
)
 
$
2,019