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MEDICARE PART D
 6 Months Ended
Jun. 30, 2019
Insurance [Abstract]  
MEDICARE PART D MEDICARE PART D
We cover prescription drug benefits in accordance with Medicare Part D under multiple contracts with the Centers for Medicare and Medicaid Services, or CMS, as described further in Note 2 to the consolidated financial statements included in our 2018 Form 10-K. The accompanying condensed consolidated balance sheets include the following amounts associated with Medicare Part D at June 30, 2019 and December 31, 2018. 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.
 
June 30, 2019
 
December 31, 2018
Risk
Corridor
Settlement
 
CMS
Subsidies/
Discounts
 
Risk
Corridor
Settlement
 
CMS
Subsidies/
Discounts
 
(in millions)
Other current assets
$
11

 
$
388

 
$
15

 
$
172

Trade accounts payable and accrued expenses
(48
)
 
(1,259
)
 
(103
)
 
(503
)
Net current liability
(37
)
 
(871
)
 
(88
)
 
(331
)
Other long-term assets
26

 
—

 
7

 
—

Other long-term liabilities
(137
)
 
—

 
(89
)
 
—

Net long-term liability
(111
)
 
—

 
(82
)
 
—

Total net liability
$
(148
)
 
$
(871
)
 
$
(170
)
 
$
(331
)