Employee Benefits Schedule of Fair Value, Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plan [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	$ 530	$ 547	$ 800
Pension Plan [Member] | Money market funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	30	4
Pension Plan [Member] | Collective trust funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	484	525
Pension Plan [Member] | Private equity funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	2	2
Pension Plan [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	14	16
Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	14	16
Pension Plan [Member] | Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	14	16
Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Pension Plan [Member] | Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Pension Plan [Member] | Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Pension Plan [Member] | Other
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	516	531
Pension Plan [Member] | Other | Money market funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	30	4
Pension Plan [Member] | Other | Collective trust funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	484	525
Pension Plan [Member] | Other | Private equity funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	2	2
Other Postretirement Benefit Plans [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	23	21	$ 37
Other Postretirement Benefit Plans [Member] | Money market funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	6	5
Other Postretirement Benefit Plans [Member] | Money Market Funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	3	4
Other Postretirement Benefit Plans [Member] | Collective trust funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	4	3
Other Postretirement Benefit Plans [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	2	2
Other Postretirement Benefit Plans [Member] | Defined Benefit Plan, Equity Securities, Non-US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	4	3
Other Postretirement Benefit Plans [Member] | US Government Agencies Debt Securities
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	4	4
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 1 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	7	7
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Money Market Funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	3	4
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 1 [Member] | Defined Benefit Plan, Equity Securities, Non-US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	4	3
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 2 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	6	6
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 2 [Member] | Money Market Funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	2	2
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 2 [Member] | Defined Benefit Plan, Equity Securities, Non-US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	4	4
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 3 [Member]
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 3 [Member] | Money Market Funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan, Equity Securities, US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 3 [Member] | Defined Benefit Plan, Equity Securities, Non-US
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	0	0
Other Postretirement Benefit Plans [Member] | Other
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	10	8
Other Postretirement Benefit Plans [Member] | Other | Money market funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	6	5
Other Postretirement Benefit Plans [Member] | Other | Collective trust funds
Equity securities:
Defined Benefit Plan, Plan Assets, Amount	$ 4	$ 3