v3.26.1
Guarantees and Product Warranty (Tables)
6 Months Ended
Jun. 30, 2026
Guarantees and Product Warranties [Abstract]  
Summary of product warranty
The reconciliation of the change in our product warranty liability balances for the six months ended June 30 was as follows:

Six Months Ended June 30,
(Millions of dollars)20262025
Warranty liability, beginning of period$1,626 $1,700 
Reduction in liability (payments)(403)(350)
Increase in liability (new warranties) 446 319 
Warranty liability, end of period$1,669 $1,669