v3.26.1
NATURE OF BUSINESS AND SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
May 28, 2026
Mar. 10, 2026
Dec. 18, 2025
Jun. 27, 2026
Jun. 27, 2026
Dec. 31, 2025
Dec. 16, 2025
Product Information [Line Items]              
Loss contingency accrual, loss in period, other expenses       $ 16 $ 16    
Sale of stock, number of shares issued in transaction (in shares) 72,554,594 86,250,000          
Sale of stock, price (in dollars per share) $ 37.00 $ 41.00          
Sale of stock, consideration received on transaction $ 2,700 $ 3,500          
Damage from fire              
Product Information [Line Items]              
Loss contingency accrual, loss in period       336 336    
Loss contingency accrual, loss in period, inventory       204 204    
Loss contingency accrual, loss in period, fixed assets       $ 116 $ 116    
Medline Holdings              
Product Information [Line Items]              
Noncontrolling ownership percent, decrease 2.00% 3.00%          
Ownership percentage             100.00%
Euro Term Loans | Secured debt              
Product Information [Line Items]              
Repayments of secured debt     $ 731        
Dollar Term Loans | Secured debt              
Product Information [Line Items]              
Repayments of secured debt     $ 3,292        
Class A common stock              
Product Information [Line Items]              
Exchange of common units for Class A common stock (in shares) 29,505,565 33,963,901          
Class B common stock              
Product Information [Line Items]              
Common stock, conversion ratio (in shares)         1 1  
Over-Allotment Option              
Product Information [Line Items]              
Sale of stock, number of shares issued in transaction (in shares)   11,250,000          
IPO              
Product Information [Line Items]              
Sale of stock, number of shares issued in transaction (in shares)     248,439,654        
Sale of stock, price (in dollars per share)     $ 29.00        
Sale of stock, consideration received on transaction     $ 7,048        
Underwriting discount and commission expense     157        
Offering expense     $ 40        
IPO, Secured Debt Repayment              
Product Information [Line Items]              
Sale of stock, number of shares issued in transaction (in shares)     179,000,000        
Sale of stock, consideration received on transaction     $ 5,078        
IPO, Purchase or Redemption of Class A Holders              
Product Information [Line Items]              
Sale of stock, number of shares issued in transaction (in shares)     37,034,482        
Sale of stock, consideration received on transaction     $ 1,051        
IPO, Purchase or Redemption of Common Units              
Product Information [Line Items]              
Sale of stock, number of shares issued in transaction (in shares)     32,405,172        
Sale of stock, consideration received on transaction     $ 919