Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2020

Retirement Benefits [Abstract]

Net periodic benefit costs

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

	Three Months Ended March 31,
	2020						2019
	Pension Benefits			Other Postretirement Benefits			Pension Benefits			Other Postretirement Benefits
	(In millions)
Service costs	$	62		$	1		$	58		$	1
Interest costs	89			10			104			13
Expected return on plan assets	(132		)	(15		)	(122		)	(16		)
Amortization of net actuarial (gains) losses	45			(19		)	48			(12		)
Amortization of prior service costs (credit)	(4		)	(1		)	(4		)	(3		)
Net periodic benefit costs (credit)	$	60		$	(24	)	$	84		$	(17	)