Depends on many factors, including breed, diet, vet care.
In general, 10-15 years.
But some breeds, especially giant breeds, have shorter lifespans.
Smaller breeds tend to live longer.
Dogs who live indoors with their owners, get regular vet care and eat a high quality diet will live longer than dogs who don’t get those things if you factor out breed, etc.
My personal dogs have lived as long as 17 years.
They get great care, lots of love, live indoors and are fed high grade grain free kibble which is supplemented with human grade meat, poultry and vegetables.
They get regular vet care and emergency vet care when they need it.