Here's the list:

AT&T said it would cut 12,000 jobs, which is 4% of its workforce.

Credit Suisse Group said it would cut 6,500 staff jobs, 11% of its worldwide work force.

DuPont said it would cut 2,500 jobs.

Viacom Inc. said it would cut 850 jobs, or 7% of its workforce.

Jefferies Group said it was cutting 358 jobs.

The Carlyle Group said Wednesday that is cutting 100 jobs.