Same-store sales growth of 2.1 percent also contributed to results.

The retailer previously worked with Postmates on delivery in Charlotte.

Suppliers like Tyson Foods report reductions in greenhouse gas emissions.

The retailer first expanded the service in March.

The program will be available in 100 markets by the end of the year.

The meals currently are available in 250 stores.

Judith McKenna has been serving as VP and COO for Walmart US.

Twelve of the stores will be converted to e-commerce fulfillment centers.

Walmart, JD.com, IBM and Tsinghua Univ. to apply technology for food traceability.

The company name is tweaked to reflect its evolving business.