Employee Benefits Schedule of Net Benefit Costs (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 1	$ 2	$ 2
Interest cost on benefit obligation	2	2	2
Expected return on plan assets	(2)	(2)	(2)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	(1)	(1)
Amortization of net actuarial loss	0	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	(11)	0	0
Net periodic benefit cost	(10)	1	1
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	17	19	17
Interest cost on benefit obligation	28	27	31
Expected return on plan assets	(46)	(45)	(44)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(2)	0	0
Amortization of net actuarial loss	15	22	17
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Net periodic benefit cost	12	23	21
Non Qualified Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost on benefit obligation	1	1	1
Expected return on plan assets	0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	0	0
Amortization of net actuarial loss	1	1	1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment	0	0	0
Net periodic benefit cost	$ 2	$ 2	$ 2