President Barack Obama’s $1 trillion health-care overhaul won’t buy corporate America relief from medical costs that more than doubled in the last decade, chief executive officers of more than a dozen U.S. companies told Bloomberg.

Private companies, providers of benefits to 132 million Americans, will see little savings from legislation under debate in Congress, CEOs at United Parcel Service Inc., Safeway Inc. and Verizon Communications Inc. said in interviews over the past two weeks.

The measures are more likely to add expenses, through taxes and fees on employers who don’t offer affordable coverage, said Ellen Kullman, chief of Wilmington, Del.-based E.I. du Pont de Nemours & Co., the world’s third-largest chemical maker and parent of Pioneer Hi-Bred International Inc. in Johnston.

“They’re disasters,” said John Riccitiello, CEO of Electronic Arts Inc. of Redwood City, Calif., the second-largest video game maker, which has 8,000 employees. “What part of either the House or Senate bill is going to do anything with cost? I don’t see anything.”

U.S. companies spent $400 billion on employee health care in 2007, a fivefold increase over two decades, according to the Employee Benefit Research Institute in Washington, D.C.

At its present rate of growth, the number will near $830 billion by 2017.

The legislation, the biggest proposed change to U.S. health care in a half-century, will expand coverage to more than 30 million people, according to the Congressional Budget Office.

What it won’t do is fundamentally alter a system in which medical costs routinely outpace inflation, hurting U.S. competitiveness, said Scott Davis, CEO at UPS, the world’s largest package shipper, with 340,000 U.S. workers.

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