Quarterly report [Sections 13 or 15(d)]

TRANSFORMATION STRATEGY COSTS - Narrative (Details)

v3.25.2
TRANSFORMATION STRATEGY COSTS - Narrative (Details)
position in Thousands, $ in Millions
 6 Months Ended 12 Months Ended
Jun. 30, 2025
USD ($)
position
building
Dec. 31, 2023
position
Dec. 31, 2024
USD ($)
Facility Closing      
Restructuring Cost and Reserve [Line Items]      
Expected number of positions eliminated | position 20    
Number of buildings closed | building 74    
Number of buildings permanently closed | building 68    
Transformation Strategy      
Restructuring Cost and Reserve [Line Items]      
Separation costs $ 57   $ 45
Payments for restructuring 49    
Restructuring charges 61    
Transformation Strategy | Voluntary Separation Plan      
Restructuring Cost and Reserve [Line Items]      
Expected costs remaining 51    
Transformation 2.0      
Restructuring Cost and Reserve [Line Items]      
Expected costs remaining 75    
Cost incurred to date 811    
Fit to Serve      
Restructuring Cost and Reserve [Line Items]      
Expected costs remaining 20    
Cost incurred to date 444    
Expected number of positions eliminated | position   14  
Network Reconfiguration and Efficiency Reimagined      
Restructuring Cost and Reserve [Line Items]      
Cost incurred to date 126    
Expected savings 3,500    
Network Reconfiguration and Efficiency Reimagined | Minimum      
Restructuring Cost and Reserve [Line Items]      
Expected separation costs 400    
Network Reconfiguration and Efficiency Reimagined | Maximum      
Restructuring Cost and Reserve [Line Items]      
Expected separation costs $ 650