SBC Communications Inc., San Antonio, may contribute $1 billion or...

SBC Communications Inc., San Antonio, may contribute $1 billion or more to its pension plan this year, although the company said no contribution is required under ERISA regulations, according to its latest 10-K filing. Last year, SBC contributed $500 million to its $28.2 billion defined benefit plan. The company expects pension and post-retirement costs this year to range from $1 billion to $1.4 billion, compared with $1.8 billion in 2003.