Chicago-based credit reporting company TransUnion is laying off 339 employees beginning in February as part of a broader cost-savings initiative and a move to ship jobs overseas. Last month TransUnion announced plans to cut up to $140 million in annual operating expenses by 2026, with half of the savings to be realized next year. The company, which has more than 13,000 employees in 30 countries, said about 10% of its workforce would be affected by the cost-reduction program through either relocation or layoffs. The company, which has grown its international operations to more than 4,000 employ…