Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2021

Compensation And Retirement Disclosure [Abstract]

Principal Components of Employee Benefit Costs

The principal components of employee benefit costs are summarized as follows:

	Year ended December 31,
	2021		2020		2019
	(in millions)
Expense:
Savings plan	$	74	$	32	$	60
Unfunded supplemental benefit plans		11		9		9
Other plans, net		24		19		24
	$	109	$	60	$	93

Company's Benefit Obligations and Funded Status

The following table summarizes the benefit obligations and funded status associated with the Company’s unfunded supplemental benefit plans:

	December 31,
	2021			2020
	(in millions)
Change in projected benefit obligation:
Benefit obligation at beginning of year	$	283		$	259
Interest costs		5			7
Actuarial (gains) losses		(11	)		31
Benefits paid		(15	)		(14	)
Projected benefit obligation at end of year		262			283
Change in plan assets:
Contributions		14			14
Benefits paid		(14	)		(14	)
Fair value of plan assets at end of year		—			—
Reconciliation of funded status:
Unfunded status of the plans	$	262		$	283
Amounts recognized in the consolidated balance sheet:
Accrued benefit liability	$	262		$	283
Amounts recognized in accumulated other comprehensive income/loss:
Unrecognized net actuarial loss	$	111		$	129
Unrecognized prior service credit		—			(1	)
	$	111		$	128
Accumulated benefit obligation at end of year	$	262		$	283

Net Periodic Benefit Costs

Net periodic benefit costs related to the Company’s unfunded supplemental benefit pension plans included the following components:

	Year ended December 31,
	2021			2020			2019
	(in millions)
Expense:
Interest costs	$	5		$	7		$	9
Amortization of net actuarial loss		7			5			4
Amortization of prior service credit		(1	)		(3	)		(4	)
	$	11		$	9		$	9

The Weighted-Average Discount Rate Assumptions Used to Determine Net Periodic Benefit Costs and Projected Benefit Obligations

The weighted-average discount rate assumptions used to determine net periodic benefit costs for the Company’s unfunded supplemental benefit plans for the years ended December 31, 2021, 2020 and 2019, are as follows:

	Year ended December 31,
	2021			2020			2019
Discount rates:
Projected benefit obligation		2.49	%		3.27	%		4.32	%
Service cost		3.14	%		3.71	%		4.55	%
Interest cost		1.83	%		2.86	%		4.00	%

The weighted-average discount rate assumptions used to determine the projected benefit obligations for the Company’s unfunded supplemental benefit plans at December 31, 2021 and 2020, are as follows:

	December 31,
	2021			2020
Discount rate		2.89	%		2.49	%

Benefit Payments

Benefit payments, which reflect expected future service, as appropriate, are expected to be made as follows:

Year	(in millions)
2022	$	16
2023	$	17
2024	$	17
2025	$	17
2026	$	17
Five years thereafter	$	79