(USA Today) In what the largest U.S. gay rights group calls a “historic move,” Walmart told employees Monday that it would extend its health and other benefits to “domestic partners” of employees, including partners of the same sex.

The largest U.S. employer made the announcement quietly in a postcard it sent to employees that listed five other changes in benefits, including a new vision plan.

Research by the Human Rights Campaign shows 62% of Fortune 500 companies already offer domestic partner benefits. But the Supreme Court’s June decision overturning part of a federal law that denied federal benefits to legally married same-sex partners has heightened attention on same-sex benefits.

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