Pension and Other Postretirement Benefit Plans

Certain subsidiaries of MetLife, Inc. sponsor and/or administer various U.S. qualified and nonqualified defined benefit pension plans and other postretirement employee benefit plans covering employees who meet specified eligibility requirements. These subsidiaries also provide certain postemployment benefits and certain postretirement medical and life insurance benefits for U.S. retired employees.

The components of net periodic benefit costs, reported in other expenses, were as follows:



	Three Months Ended September 30,
	2018						2017
	Pension Benefits			Other Postretirement Benefits			Pension Benefits			Other Postretirement Benefits
	(In millions)
Service costs	$	58		$	1		$	62		$	1
Interest costs	95			13			106			19
Divestitures	—			—			3			2
Expected return on plan assets	(133		)	(18		)	(129		)	(18		)
Amortization of net actuarial (gains) losses	46			(9		)	46			—
Amortization of prior service costs (credit)	(1		)	(5		)	—			(6		)
Net periodic benefit costs (credit)	$	65		$	(18	)	$	88		$	(2	)



	Nine Months Ended September 30,
	2018						2017
	Pension Benefits			Other Postretirement Benefits			Pension Benefits			Other Postretirement Benefits
	(In millions)
Service costs	$	176		$	4		$	184		$	4
Interest costs	287			39			318			57
Divestitures	—			—			3			2
Expected return on plan assets	(400		)	(54		)	(387		)	(54		)
Amortization of net actuarial (gains) losses	134			(26		)	143			—
Amortization of prior service costs (credit)	(1		)	(14		)	(1		)	(17		)
Net periodic benefit costs (credit)	$	196		$	(51	)	$	260		$	(8	)