Employment Benefit Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Number of months for highest consecutive compensation	60 months
Total number of years of salaried employees to qualify for pension plans	10 years
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 6
Interest cost	15	14
Expected return on plan assets	(45)	(44)
Amortization of net loss	1	0
Net (benefit) cost recognized	$ (25)	$ (24)