Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Amounts charged to expense for defined contribution plans		$ 109	$ 91	$ 90
Investment, Type [Extensible Enumeration]		Emerging Markets [Member]
Pension [Member]
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation		$ 6,300	6,100
Accumulated benefit obligation		142	134
Fair value of plan assets		0
Projected benefit obligation		159	158
Defined benefit plan, pension plan with projected benefit obligation in excess of plan assets, plan assets		$ 0
Composition of plan assets		2.00%
Defined benefit plan, plan assets, amount		$ 6,775	$ 6,603	$ 8,793
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets		6.10%	6.10%	6.60%
Pension [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets	6.10%
Pension [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected future employer contributions		$ 30
Pension [Member] | Below Investment Grade [Member]
Defined Benefit Plan Disclosure [Line Items]
Composition of plan assets		9.00%
Pension [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage		20.00%
Pension [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage		80.00%
Pension [Member] | Fixed Income Securities [Member] | Below Investment Grade [Member]
Defined Benefit Plan Disclosure [Line Items]
Composition of plan assets		11.00%
Postretirement Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Composition of plan assets		1.00%
Defined benefit plan, plan assets, amount		$ 102	$ 122	$ 185
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets		7.40%	7.70%	7.70%
Postretirement Benefit Plan [Member] | Forecast [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets	7.40%
Postretirement Benefit Plan [Member] | Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected future employer contributions		$ 30
Postretirement Benefit Plan [Member] | Below Investment Grade [Member]
Defined Benefit Plan Disclosure [Line Items]
Composition of plan assets		4.00%
Postretirement Benefit Plan [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage		55.00%
Postretirement Benefit Plan [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan assets, target allocation percentage		45.00%
Postretirement Benefit Plan [Member] | Fixed Income Securities [Member] | Below Investment Grade [Member]
Defined Benefit Plan Disclosure [Line Items]
Composition of plan assets		9.00%