Pension Plans, Retirement Benefits and Savings Plans (Tables)

6 Months Ended

Jun. 30, 2023

Retirement Benefits [Abstract]

Summary of the components of net periodic benefit cost (benefit) for the Company's pension and postretirement benefit plans recognized in the consolidated statement of income (loss) [Table Text Block]

The following table summarizes the components of net periodic benefit cost (benefit) for the Company’s pension and postretirement benefit plans recognized in the consolidated statement of income (loss) for the three months ended June 30, 2023 and 2022.

	Pension Plans				Postretirement Benefit Plans
(for the three months ended June 30, in millions)	2023		2022		2023		2022
Net Periodic Benefit Cost (Benefit):
Service cost	$	27	$	37	$	—	$	—
Non-service cost (benefit):
Interest cost on benefit obligation	44		26		1		1
Expected return on plan assets	(78)		(74)		—		—
Amortization of unrecognized:
Prior service benefit	—		—		(1)		(1)
Net actuarial (gain) loss	—		13		(2)		(1)
Total non-service cost (benefit)	(34)		(35)		(2)		(1)
Net periodic benefit cost (benefit)	$	(7)	$	2	$	(2)	$	(1)

The following table summarizes the components of net periodic benefit cost (benefit) for the Company’s pension and postretirement benefit plans recognized in the consolidated statement of income (loss) for the six months ended June 30, 2023 and 2022.

	Pension Plans				Postretirement Benefit Plans
(for the six months ended June 30, in millions)	2023		2022		2023		2022
Net Periodic Benefit Cost (Benefit):
Service cost	$	54	$	73	$	—	$	—
Non-service cost (benefit):
Interest cost on benefit obligation	88		51		2		2
Expected return on plan assets	(156)		(148)		—		—
Amortization of unrecognized:
Prior service benefit	—		—		(2)		(2)
Net actuarial (gain) loss	—		25		(4)		(2)
Total non-service cost (benefit)	(68)		(72)		(4)		(2)
Net periodic benefit cost (benefit)	$	(14)	$	1	$	(4)	$	(2)

Consolidated statement of income (loss) line items impacted by service costs and non-service cost (benefit) [Table Text Block]

The following table indicates the line items in which the respective service cost and non-service cost (benefit) are presented in the consolidated statement of income (loss) for the three months ended June 30, 2023 and 2022.

 

	Pension Plans				Postretirement Benefit Plans
(for the three months ended June 30, in millions)	2023		2022		2023		2022
Service Cost:
Claims and claim adjustment expenses	$	11	$	15	$	—	$	—
General and administrative expenses	16		22		—		—
Total service cost	27		37		—		—
Non-Service Cost (Benefit):
Claims and claim adjustment expenses	(13)		(14)		(1)		(1)
General and administrative expenses	(21)		(21)		(1)		—
Total non-service cost (benefit)	(34)		(35)		(2)		(1)
Net periodic benefit cost (benefit)	$	(7)	$	2	$	(2)	$	(1)

The following table indicates the line items in which the respective service cost and non-service cost (benefit) are presented in the consolidated statement of income (loss) for the six months ended June 30, 2023 and 2022.

	Pension Plans				Postretirement Benefit Plans
(for the six months ended June 30, in millions)	2023		2022		2023		2022
Service Cost:
Claims and claim adjustment expenses	$	22	$	30	$	—	$	—
General and administrative expenses	32		43		—		—
Total service cost	54		73		—		—
Non-Service Cost (Benefit):
Claims and claim adjustment expenses	(27)		(29)		(2)		(1)
General and administrative expenses	(41)		(43)		(2)		(1)
Total non-service cost (benefit)	(68)		(72)		(4)		(2)
Net periodic benefit cost (benefit)	$	(14)	$	1	$	(4)	$	(2)