“While these efforts will take time to implement, and progress may not be linear, We have a good plan to continue to drive improvements in our cost structure.”

In context

“our global cost to serve on a per unit basis. In the fourth quarter, we saw strong productivity in our transportation network, from improved inventory placement, higher units per package, and reduced travel distances. We also saw improved productivity in our fulfillment centers. Overall, our teams executed extremely well throughout the quarter, and particularly during our peak seasons. I want to thank them for all they do to deliver for our customers. Looking ahead, we have several opportunities to keep lowering our costs through even better inventory placement, which also allows us to deliver items to customers faster. In the US, we're tuning our inbound network and continuing to expand our same day delivery network. Globally, we're adding automation and robotics throughout our network. While these efforts will take time to implement, and progress may not be linear, We have a good plan to continue to drive improvements in our cost structure. Advertising remains an important contributor to profitability in the North America and international segments. This quarter, we saw strong advertising revenue growth on an increasingly large base. We will also continue to invest in experiences that have potential to be important to customers in Amazon long term. In areas like Alexa, health care, and grocery, as well as satellites in the coming months. As a reminder, we currently expense the majority of the cost associated with the development of our satellite network. We will capitalize certain costs once the service achieves commercial viability, including sales to customers. Moving next to our AWS segment, revenue was $28.8 billion, an increase of 19% year over year. AWS now has an annualized revenue run rate of $115 billion. During the”