Employee Benefit Plans - Postemployment Plan (Details) - Postemployment Retirement Benefits - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Net service cost	$ 36	$ 3	$ 49	$ 9
Interest cost	0	0	1	1
Amortization of prior service benefit	0	0	(1)	(1)
Amortization of actuarial gain	0	0	0	0
Net benefit cost	$ 36	$ 3	$ 49	$ 9