The nation's largest private employer, which has been a target of attacks by labour groups for what they criticize are skimpy wages and benefits, said Tuesday that the changes were made so it could have one uniform policy for all 50 states at a time when some states have their own definitions of what constitutes domestic partnerships and civil unions.
Employees can enrol their domestic partners from Oct. 12 through Nov. 1.
Wal-Mart defines domestic partners as spouses of the same-sex or opposite gender, and unmarried partners who are not legally separated who have lived together for at least 12 months, are not married to anyone else, are in an exclusive relationship and plan to continue sharing a household indefinitely, says Randy Hargrove, a Wal-Mart spokesman.
"States have different definitions," said Hargrove in a phone interview with The Associated Press. "We are going to have our own definition that will apply to our associates."
The move, which was announced to Wal-Mart workers in postcards sent to them Monday, follows the U.S. Supreme Court decision in June to overturn a 1996 law that denied federal benefits to legally married same-sex couples. So the decision makes the federal government recognize same-sex marriages in states where they are legal.
Wal-Mart also announced that it will be offering an eyewear care program, including eye exams, to its eligible associates, starting next year.
The Bentonville, Ark.-based discounter has 1.3 million full-time and part-time U.S. workers. More than half of the workers participate in health care plans, the company says. About 1.1 million Wal-Mart workers and family members combined participate in Wal-Mart's health care plan.
Hargrove said that the company's health care premiums are going up anywhere from 3 per cent to 10 per cent, a lower rate than in previous years.
"We have been working to keep our costs down," he added.