Pension and Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2020

Pension and Postretirement Benefit Plans

Components of net periodic benefit cost (benefit)

	Three months ended September 30,
	Qualified and Non-qualified
	Pension Benefits								Postretirement
	United States				International				Benefits
(Millions)	2020		2019		2020		2019		2020		2019
Net periodic benefit cost (benefit)
Operating expense
Service cost	$	66	$	63	$	39	$	32	$	11	$	10
Non-operating expense
Interest cost	$	124	$	155	$	31	$	40	$	16	$	20
Expected return on plan assets		(255)		(260)		(77)		(75)		(20)		(20)
Amortization of transition asset		—		—		1		—		—		—
Amortization of prior service benefit		(6)		(6)		(1)		(3)		(8)		(9)
Amortization of net actuarial loss		134		91		30		20		12		8
Settlements, curtailments, special termination benefits and other		—		—		—		—		1		—
Total non-operating expense (benefit)		(3)		(20)		(16)		(18)		1		(1)
Total net periodic benefit cost (benefit)	$	63	$	43	$	23	$	14	$	12	$	9

	Nine months ended September 30,
	Qualified and Non-qualified
	Pension Benefits								Postretirement
	United States				International				Benefits
(Millions)	2020		2019		2020		2019		2020		2019
Net periodic benefit cost (benefit)
Operating expense
Service cost	$	197	$	188	$	115	$	98	$	33	$	32
Non-operating expense
Interest cost	$	374	$	466	$	95	$	118	$	48	$	62
Expected return on plan assets		(765)		(780)		(231)		(225)		(60)		(61)
Amortization of transition asset		—		—		2		—		—		—
Amortization of prior service benefit		(18)		(18)		(4)		(9)		(24)		(23)
Amortization of net actuarial loss		402		274		92		59		36		25
Settlements, curtailments, special termination benefits and other		—		35		—		1		3		—
Total non-operating expense (benefit)		(7)		(23)		(46)		(56)		3		3
Total net periodic benefit cost (benefit)	$	190	$	165	$	69	$	42	$	36	$	35