Employee Benefits - Net Pension Cost (Benefit) for All Funded and Unfunded Plans (Details) - Pension Plans - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest cost on PBO	$ 7	$ 6	$ 20	$ 18
Expected return on plan assets	(7)	(7)	(20)	(21)
Amortization of losses	4	5	11	14
Settlement loss	0	7	0	7
Net pension cost	$ 4	$ 11	$ 11	$ 18