(Bloomberg) -- Amazon.com Inc. will double the number of US same-day delivery facilities in the “coming years,” the company announced Monday, an investment executives are counting on to maintain Amazon’s lead in the $1.4 trillion online shopping market.Most Read from BloombergUS, Europe Growing Alarmed by China’s Rush Into Legacy ChipsCharles Koch-Tied Group Seeks to Block Trump From GOP NominationStock Rally Takes a Break as Treasury Yields Climb: Markets WrapAsia’s Richest Families Fuel Race f