As the world's largest parcel delivery company, United Parcel Service uses more than 500 planes and 100,000 vehicles to deliver on average 16.2 million packages per day to residences and businesses around the globe. Domestic package operations generate about 61% of consolidated revenue, and international package adds 22%; less-than-truckload freight delivery, freight forwarding, logistics services, and retail stores contribute another 17% of sales.