Hilton may buy back its former international units.

Beverly Hills-based Hilton Hotels, which spun off its worldwide operation 22 years ago, said it is considering the repurchase of the subsidiary from New York-based Transworld Corp., which announced a liquidation plan calling for the sale of Hilton International and the sale or recapitalization of its other assets. The liquidation plan by Transworld followed a takeover bid by New York investor Ronald O. Perelman.