17. Employee Benefit Plans.

The Company sponsors various retirement plans for the majority of its U.S. and non-U.S. employees. The Company provides certain other postretirement benefits, primarily health care and life insurance, to eligible U.S. employees.

Components of Net Periodic Benefit Expense (Income) for Pension and Other Postretirement Plans.

			Three Months Ended
			March 31,
			2016		2015
			(dollars in millions)
Service cost, benefits earned during the period		$	4	$	5
Interest cost on projected benefit obligation			38		39
Expected return on plan assets			(30)		(30)
Net amortization of prior service credit			(4)		(5)
Net amortization of actuarial loss			3		6
	Net periodic benefit expense	$	11	$	15