Pension and Other Postretirement Employee 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]
NAV per share, investment redemption, notice period		90 days
Expense for all defined benefit and defined contributions pension plans		$ 219	$ 237	$ 203
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service credits, before tax		3
Prior service credit, after tax		2
Unrecognized actuarial losses, before tax		(534)
Unrecognized actuarial losses, net of tax		$ (405)
Pension Benefits | U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		6.75%	6.75%	6.75%
Expected employer contributions within the next year		$ 9
Pension Benefits | U.S. Pension Benefits | Scenario, forecast
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	6.75%
Pension Benefits | U.S. Pension Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage		60.00%
Pension Benefits | U.S. Pension Benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage		70.00%
Pension Benefits | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		4.60%	3.30%
Expected employer contributions within the next year		$ 35
Pension Benefits | Foreign Plan | Minimum
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		0.80%	0.80%
Pension Benefits | Foreign Plan | Maximum
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		6.80%	5.30%
Pension Benefits | Foreign Plan | Weighted average
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		4.60%	3.30%
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Medical trend rate - initial		5.90%	5.20%
Medical trend rate - ultimate		4.00%	4.00%
Unrecognized prior service credits, before tax		$ 8
Prior service credit, after tax		6
Unrecognized actuarial losses, before tax		(5)
Unrecognized actuarial losses, net of tax		(4)
Expected employer contributions within the next year		$ 13