Retirement Benefits (Tables)

6 Months Ended

Jun. 30, 2021

Retirement Benefits [Abstract]

Defined Benefit Plans - Expense

The pre-tax net periodic benefit cost/(income) for our defined benefit pension and OPEB plans for the periods ended June 30 were as follows (in millions):

	Second Quarter
	Pension Benefits
	U.S. Plans				Non-U.S. Plans				Worldwide OPEB
	2020		2021		2020		2021		2020		2021
Service cost	$	130	$	127	$	127	$	139	$	11	$	12
Interest cost	323		239		130		109		41		32
Expected return on assets	(699)		(664)		(254)		(284)		—		—
Amortization of prior service costs/(credits)	1		—		8		7		(4)		(3)
Net remeasurement (gain)/loss	4		(182)		(152)		(81)		—		—
Separation programs/other	3		3		33		47		1		—
Settlements and curtailments	4		10		17		(1)		—		—
Net periodic benefit cost/(income)	$	(234)	$	(467)	$	(91)	$	(64)	$	49	$	41
	First Half
	Pension Benefits
	U.S. Plans				Non-U.S. Plans				Worldwide OPEB
	2020		2021		2020		2021		2020		2021
Service cost	$	260	$	265	$	258	$	283	$	23	$	24
Interest cost	646		462		263		208		84		64
Expected return on assets	(1,398)		(1,366)		(521)		(569)		—		—
Amortization of prior service costs/(credits)	2		1		17		12		(8)		(6)
Net remeasurement (gain)/loss	4		241		(232)		(565)		58		—
Separation programs/other	13		5		57		84		—		—
Settlements and curtailments	4		49		18		—		(2)		—
Net periodic benefit cost/(income)	$	(469)	$	(343)	$	(140)	$	(547)	$	155	$	82