Billings for the worldwide account were estimated at more than $1 billion.

Mars Inc. said yesterday that it had begun to review, as expected, the performance of the agencies on its worldwide account, which has billings estimated at $1 billion.

Two well-known watch marketers have made changes on their worldwide accounts.

The International Business Machines Corporation said yesterday that it had consolidated its worldwide interactive account at 6 agencies, down from 60.

And Michael Bray, 49, managing director for worldwide accounts in London, was named to the new post of president for international brands.

Mr. Gault came to New York in 2000 as worldwide executive vice president and director for worldwide accounts.

It is believed to be the first time Unilever has awarded a worldwide account outside its roster of big "club agencies."

Continental Airlines Inc. has placed its worldwide account in review and is considering a consolidation.

Ernst & Young said yesterday that it had placed in review its domestic advertising account, which may lead to a consolidation of its worldwide account.

The Digital Equipment Corporation said yesterday that it had narrowed the review on its estimated $35 million worldwide account to six agencies, from about 20.