The cuts, which began last year, were previously expected to affect about 10,000 people. The reduction is concentrated in the firm’s corporate ranks, according to the Journal, which cited unidentified people familiar with the matter.

Though the prospect of layoffs has loomed over Amazon for months — the company has acknowledged that it hired too many people during the pandemic — the increasing total suggests the company’s outlook has darkened. It joins other tech giants in making major cuts. Earlier Wednesday, Salesforce Inc. announced plans to eliminate about 10% of its workforce and reduce its real estate holdings.

Amazon investors gave a positive reaction to the latest belt-tightening efforts, betting it may bolster profits at the e-commerce company. The shares climbed nearly 2% in late trading after the report.

Eliminating 17,000 workers would be the biggest cut yet for tech companies during the current slowdown, but Amazon also has a far bigger workforce than Silicon Valley peers. It had more than 1.5 million employees as of the end of September, meaning the latest cuts would represent about 1% of the workforce.

At the time the company was planning its cuts in November, a spokesperson said Amazon had roughly 350,000 corporate employees worldwide.

The world’s largest online retailer spent the end of last year adjusting to a sharp slowdown in e-commerce growth as shoppers returned to pre-pandemic habits. Amazon delayed warehouse openings and halted hiring in its retail group. It broadened the freeze to the company’s corporate staff and then began making cuts.

Chief Executive Officer Andy Jassy has eliminated or curtailed experimental and unprofitable businesses, including teams working on a telehealth service, a delivery robot and a kids’ video-calling device, among other projects.

The Seattle-based company also is trying to align excess capacity with cooling demand. One effort includes trying to sell excess space on its cargo planes, according to people familiar with the matter.

The first wave of cuts landed heaviest on Amazon’s Devices and Services group, which builds the Alexa digital assistant and Echo smart speaker, among other products. The group’s chief told Bloomberg last month that layoffs in the unit totaled less than 2,000 people, and that Amazon remained committed to the voice assistant.

Some recruiters and employees in the company’s human resources group were offered buyouts. Jassy told employees in November that more cuts would come in 2023 at its retail and HR teams.