Answer Question
No, Walmart uses MoneyGram to send money in the US and to transfer money internationally they use XOOM. They do not use Western Union. This is where you can use Walmart's Moneygram.
Here is where you can use Western Union.
Does Walmart sell Spark Plugs?
Are postage stamps sold at Holiday Foods?
Does Karns Quality Foods sell Mega Millions?
Are Mega Millions tickets sold at Sack and Save?
Does Sullivan's Foods sell Mega Millions tickets?
Can you buy Stamps at ATM machine?
Do Pharmacies sell Postage Stamps?
Does walmart fax?
Walmart Printable Coupons - Redeem In-Store - Walmart coupons