Pension and Postretirement Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2020

Pension and Postretirement Benefit Plans

Components of net periodic benefit cost (benefit)

	Three months ended June 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	$	65	$	63	$	38	$	33	$	11	$	11
Non-operating expense
Interest cost	$	126	$	156	$	33	$	39	$	16	$	21
Expected return on plan assets		(255)		(260)		(77)		(75)		(20)		(21)
Amortization of prior service benefit		(6)		(6)		(2)		(3)		(8)		(7)
Amortization of net actuarial loss		134		92		31		19		12		8
Settlements, curtailments, special termination benefits and other		—		35		—		1		1		—
Total non-operating expense (benefit)		(1)		17		(15)		(19)		1		1
Total net periodic benefit cost (benefit)	$	64	$	80	$	23	$	14	$	12	$	12

	Six months ended June 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	$	131	$	125	$	76	$	66	$	22	$	22
Non-operating expense
Interest cost	$	250	$	311	$	64	$	78	$	32	$	42
Expected return on plan assets		(510)		(520)		(154)		(150)		(40)		(41)
Amortization of transition asset		—		—		1		—		—		—
Amortization of prior service benefit		(12)		(12)		(3)		(6)		(16)		(14)
Amortization of net actuarial loss		268		183		62		39		24		17
Settlements, curtailments, special termination benefits and other		—		35		—		1		2		—
Total non-operating expense (benefit)		(4)		(3)		(30)		(38)		2		4
Total net periodic benefit cost (benefit)	$	127	$	122	$	46	$	28	$	24	$	26