Annual report pursuant to Section 13 and 15(d)

SUMMARY OF ACCOUNTING POLICIES - Additional Information (Details)

v3.25.0.1
SUMMARY OF ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Jun. 30, 2024
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Significant Accounting Policies [Line Items]        
Purchased transportation   $ (13,589) $ (13,640) $ (17,666)
Other expenses   (7,888) (8,097) (7,920)
Repairs and maintenance   2,940 2,828 2,884
Restricted cash   0 37  
Inventories   826 935  
Capitalized interest   121 118  
Supplier finance program, obligation, sold to financial institutions   $ 515 $ 504 806
Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration]   Accounts payable Accounts payable  
Payments for workers' compensation liability   $ 114 $ 151  
Self insurance reserve   114 153  
Gain (loss) on self insurance reserves     2  
Net currency transaction gains and (losses), pre-tax   (38) (53) 72
Obligation, sold   $ 515 504  
Revision of Prior Period, Reclassification, Adjustment        
Significant Accounting Policies [Line Items]        
Purchased transportation     11 9
Other expenses     $ (7) $ (5)
ITALY        
Significant Accounting Policies [Line Items]        
Miscellaneous taxes $ 94      
Ratably Vesting Awards        
Significant Accounting Policies [Line Items]        
Employee share-based awards, vesting period   5 years    
Minimum | Cliff Vesting Awards        
Significant Accounting Policies [Line Items]        
Employee share-based awards, vesting period   1 year    
Minimum | Other Intangible Assets        
Significant Accounting Policies [Line Items]        
Finite-lived intangible assets, estimated useful lives range, minimum   2 years    
Minimum | Capitalized software        
Significant Accounting Policies [Line Items]        
Finite-lived intangible assets, estimated useful lives range, minimum   7 years    
Minimum | Aircraft        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   7 years    
Minimum | Buildings        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   10 years    
Minimum | Plant equipment        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   3 years    
Minimum | Technology equipment        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   3 years    
Minimum | Vehicles        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   5 years    
Maximum | Cliff Vesting Awards        
Significant Accounting Policies [Line Items]        
Employee share-based awards, vesting period   3 years    
Maximum | Other Intangible Assets        
Significant Accounting Policies [Line Items]        
Finite-lived intangible assets, estimated useful lives range, minimum   21 years    
Maximum | Aircraft        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   40 years    
Maximum | Buildings        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   40 years    
Maximum | Plant equipment        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   20 years    
Maximum | Technology equipment        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   10 years    
Maximum | Vehicles        
Significant Accounting Policies [Line Items]        
Property, plant and equipment, estimated useful lives range   15 years