v3.26.1
Leases (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Leases      
Operating lease right-of-use asset $ 457   $ 476
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other Assets   Other Assets
Operating lease liabilities $ 465   $ 484
Operating Lease, Liability, Statement of Financial Position [Extensible List] Accrued Liabilities   Accrued Liabilities
Finance lease right-of-use assets $ 77   $ 79
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Property, plant and equipment, net   Property, plant and equipment, net
Finance lease liabilities $ 87   $ 88
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Accrued Liabilities   Accrued Liabilities
Operating lease cost $ 46 $ 44  
Amortization of financing lease right-of-use assets 3 2  
Interest expense on financing lease liabilities   1  
Property, plant and equipment, net 3,634   $ 3,670
Maximum      
Leases      
Interest expense on financing lease liabilities 2    
Energy      
Leases      
Operating lease right-of-use asset 70   69
Operating lease liabilities $ 65   $ 64
Lease term 5 years   5 years 1 month 6 days
Operating lease, discount rate percentage 8.20%   8.10%
Property, plant and equipment, net $ 2,309   $ 2,333
Automotive      
Leases      
Operating lease right-of-use asset 344   363
Operating lease liabilities $ 362   $ 380
Lease term 5 years   5 years
Operating lease, discount rate percentage 5.90%   5.90%
Operating lease cost $ 34 31  
Revenues from operating leases $ 5 $ 14  
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Revenue Other Operating Revenue  
Variable lease costs $ 16 $ 24  
Property, plant and equipment, net 363   $ 351
Food Packaging      
Leases      
Operating lease right-of-use asset 19   20
Operating lease liabilities $ 21   $ 22
Lease term 7 years 7 months 6 days   7 years 7 months 6 days
Operating lease, discount rate percentage 7.50%   7.50%
Property, plant and equipment, net $ 143   $ 141
Other Segments and Holding Company      
Leases      
Operating lease right-of-use asset 24   24
Operating lease liabilities 17   18
Real Estate Segment      
Leases      
Revenues from operating leases 7 $ 3  
Variable lease costs 14   7
Property, plant and equipment, net 761   787
Real Estate Segment | Assets leased to others      
Leases      
Property, plant and equipment, net $ 497   $ 484