Retirement Plans - Schedule Of Components Of Net Periodic Benefit Cost (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Components of net periodic benefit cost
Interest cost	$ 8	$ 5	$ 16	$ 10
Expected return on plan assets	(8)	(6)	(16)	(12)
Actuarial (gain) loss	3	2	6	4
Net periodic benefit cost	$ 3	$ 1	$ 6	$ 2