Large employers say they're committed to providing active employee health care benefits in the near future despite criticisms that health reform will erode employer-sponsored coverage, new analysis finds.

During the next five years, 80 percent of employers in an annual survey from Towers Watson and the National Business Group on Health said they wouldn't consider sending their employees into the exchanges without a subsidy, and 60 percent said they wouldn't consider such a move even with a subsidy.

Still, employers admit they will plan for "aggressive actions" in response to changes influenced in part by the Patient Protection and Affordable Care Act, as some plan to drop spousal coverage and raise costs.