Shreveport, Louisiana | Over the past two decades, no company has done more to shape the American workplace than Amazon. In its ascent to become the nation’s second-largest employer, it has hired hundreds of thousands of warehouse workers, built an army of contract drivers and pioneered using technology to hire, monitor and manage employees.

Now, interviews and a cache of internal strategy documents viewed by The New York Times reveal that Amazon executives believe the company is on the cusp of its next big workplace shift – replacing more than half a million jobs with robots.