Retirement Plans - Schedule Of Components Of Net Periodic Benefit Cost (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Components of net periodic benefit cost
Interest cost	$ 5	$ 4	$ 10	$ 8
Expected return on plan assets	(6)	(4)	(12)	(8)
Actuarial (gain) loss	2	2	4	4
Other	0	0	0	2
Net periodic benefit cost	$ 1	$ 2	$ 2	$ 6