Retirement and Benefit Plans - Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Components of net periodic benefit cost:
Interest cost	$ 6	$ 5	$ 4
Expected return on assets	(5)	(4)	(4)
Amortization of net actuarial loss	2	3	6
Settlement	2	3	3
Net periodic benefit cost	5	7	9
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial loss (gain)	1	(11)	(5)
Amortization of net actuarial loss	(2)	(3)	(6)
Settlement	(2)	(3)	(3)
Total recognized in other comprehensive income	(3)	(17)	(14)
Total recognized in net periodic benefit cost and other comprehensive income	$ 2	$ (10)	$ (5)