Benefit Plans Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension plans with an accumulated benefit obligation in excess of plan assets:
Fair value of plan assets	$ 7	$ 24
Accumulated benefit obligation	40	72
Pension plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	103	152
Pension Plan [Member]
Pension plans with a projected benefit obligation in excess of plan assets:
Fair value of plan assets	$ 58	$ 84