Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2022

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit (Income) Cost

Net periodic benefit (income) cost consisted of the following:

	Pension				Postretirement				Pension				Postretirement
	For the Six Months Ended June 30,								For the Three Months Ended June 30,
(in millions)	2022		2021		2022		2021		2022		2021		2022		2021
Service cost	$	32	$	34	$	10	$	10	$	17	$	17	$	5	$	5
Interest cost	104		93		20		21		52		47		10		10
Expected return on plan assets	(247)		(262)		(6)		(8)		(124)		(131)		(3)		(4)
Amortization:
Net loss	48		66		8		14		24		33		4		7
Prior service cost (credit)	3		2		(23)		(15)		1		1		(11)		(9)
Net periodic benefit (income) cost	$	(60)	$	(67)	$	9	$	22	$	(30)	$	(33)	$	5	$	9