v3.26.1
Guarantees and Product Warranty (Tables)
3 Months Ended
Mar. 31, 2026
Guarantees and Product Warranties [Abstract]  
Summary of product warranty
The reconciliation of the change in our product warranty liability balances for the three months ended March 31 was as follows:

Three Months Ended March 31,
(Millions of dollars)20262025
Warranty liability, beginning of period$1,626 $1,700 
Reduction in liability (payments)(202)(166)
Increase in liability (new warranties) 174 103 
Warranty liability, end of period$1,598 $1,637