As FedEx and United Parcel Service battle for market share in a delivery demand downturn, they are expanding returns services aimed at helping retailers slash the cost of sending back shoes, apparel and other goods. FedEx, which counts Walmart as a key partner, is offering its consolidated returns services to more customers in time for the holiday season when returns rise, FedEx spokesman Ryan Kelly told Reuters. FedEx's consolidated returns service previously was reserved for large customers doing thousands of returns each day.