Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2024

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit (Income) Cost

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

	Pension				Postretirement				Pension				Postretirement
	For the Nine Months Ended September 30,								For the Three Months Ended September 30,
(in millions)	2024		2023		2024		2023		2024		2023		2024		2023
Service cost	$	31	$	29	$	11	$	11	$	10	$	9	$	3	$	3
Interest cost	242		250		46		49		81		84		14		15
Expected return on plan assets	(349)		(364)		(4)		(5)		(116)		(121)		(1)		(1)
Amortization:
Net loss (gain)	21		3		(4)		(2)		8		1		(2)		(2)
Prior service cost (credit)	4		4		(30)		(30)		1		1		(10)		(10)
Net periodic benefit cost (income)	$	(51)	$	(78)	$	19	$	23	$	(16)	$	(26)	$	4	$	5