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MEDICARE PART D
 12 Months Ended
Dec. 31, 2023
Insurance [Abstract]  
MEDICARE PART D MEDICARE PART D
We cover prescription drug benefits in accordance with Medicare Part D under multiple contracts with CMS. The accompanying consolidated balance sheets include the following amounts associated with Medicare Part D as of December 31, 2023 and 2022. 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. For additional information regarding our prescription drug benefits coverage in accordance with Medicare Part D, refer to Note 2 to the audited Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" of this Form 10-K.
 20232022
 Risk
Corridor
Settlement		CMS
Subsidies/
Discounts		Risk
Corridor
Settlement		CMS
Subsidies/
Discounts
 (in millions)
Other current assets$224 $514 $240 $696 
Trade accounts payable and accrued expenses(232)(1,825)(166)(1,236)
Net current (liability) asset(8)(1,311)74 (540)
Other long-term assets17 — 19 — 
Other long-term liabilities(77)— (78)— 
Net long-term liability(60)— (59)— 
       Total net (liability) asset$(68)$(1,311)$15 $(540)