FedEx pioneered overnight delivery in 1973 and remains the world's largest express delivery firm. It derives about 60% of its $45 billion top line from its express division. In the U.S., FedEx' ground segment delivers parcels at a lower cost than express, and the freight segment provides less-than-truckload freight services. FedEx Office provides document production and shipping services, and Trade Networks offers freight forwarding. FedEx has bid to acquire the large Dutch parcel delivery firm, TNT, and awaits regulatory approval.