Aerospace weapons spending -- and employment in the industry -- will continue to decline despite the Persian Gulf crisis, said Don Fuqua, president of the Aerospace Industries Association. Aerospace employment has fallen almost 70,000 this year, to 1.25 million, and will decline by 30,000 more in 1991, he said.

Marriott will lay off 45 workers at its headquarters in Bethesda and another 35 around the country in its food-service management division. The cuts, the first this year in the division, are part of a "streamlining" unrelated to the company's real estate problems.

Columbia Savings & Loan sued Michael Milken, nine former Drexel officials and more than 100 Drexel- sponsored investment partnerships, seeking more than $6 billion in damages. Columbia accused the ex-officials of using coercive and deceptive practices to entice it and other thrifts to buy junk bonds.

GM said it expects its total U.S. vehicle sales for 1991 to slip by about 700,000 units to about 13.5 million cars and trucks -- provided there is a peaceful resolution to the crisis in the Middle East.

Delta will award free tickets to members of its frequent flier club who complete eight "segments" on coach fares from Dec. 15 to March 15.