Retirement Plans - Schedule Of Components Of Net Periodic Benefit Cost (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Components of net periodic benefit cost
Interest cost	$ 10	$ 5	$ 26	$ 15
Expected return on plan assets	(9)	(6)	(25)	(18)
Actuarial (gain) loss	3	4	9	8
Net periodic benefit cost	$ 4	$ 3	$ 10	$ 5