Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2022

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 March 31 were as follows (in millions):

	First Quarter
	Pension Benefits
	U.S. Plans				Non-U.S. Plans				Worldwide OPEB
	2021		2022		2021		2022		2021		2022
Service cost	$	138	$	125	$	144	$	111	$	12	$	10
Interest cost	223		263		99		134		32		37
Expected return on assets	(702)		(642)		(285)		(268)		—		—
Amortization of prior service costs/(credits)	1		—		5		7		(3)		(1)
Net remeasurement (gain)/loss	423		—		(484)		—		—		—
Separation programs/other	2		4		37		7		—		—
Settlements and curtailments	39		—		1		—		—		—
Net periodic benefit cost/(income)	$	124	$	(250)	$	(483)	$	(9)	$	41	$	46