Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2019

Retirement Benefits [Abstract]

Net periodic benefit costs

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

	Three Months Ended September 30,
	2019						2018
	Pension Benefits			Other Postretirement Benefits			Pension Benefits			Other Postretirement Benefits
	(In millions)
Service costs	$	59		$	2		$	58		$	1
Interest costs	104			13			95			13
Expected return on plan assets	(122		)	(16		)	(133		)	(18		)
Amortization of net actuarial (gains) losses	49			(13		)	46			(9		)
Amortization of prior service costs (credit)	(4		)	(3		)	(1		)	(5		)
Net periodic benefit costs (credit)	$	86		$	(17	)	$	65		$	(18	)

	Nine Months Ended September 30,
	2019						2018
	Pension Benefits			Other Postretirement Benefits			Pension Benefits			Other Postretirement Benefits
	(In millions)
Service costs	$	174		$	4		$	176		$	4
Interest costs	312			39			287			39
Expected return on plan assets	(367		)	(50		)	(400		)	(54		)
Amortization of net actuarial (gains) losses	145			(37		)	134			(26		)
Amortization of prior service costs (credit)	(12		)	(8		)	(1		)	(14		)
Net periodic benefit costs (credit)	$	252		$	(52	)	$	196		$	(51	)