Pension And Other Postretirement Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
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		$ 245	$ 224	$ 203
Pension benefit plans
Defined Benefit Plan Disclosure [Line Items]
Unrecognized prior service credits, before tax		(8)
Prior service credit, after tax		(6)
Unrecognized actuarial losses, before tax		(720)
Unrecognized actuarial losses, net of tax		$ (548)
Pension benefit plans | U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		6.75%	7.00%	7.00%
Expected employer contributions within the next year		$ 10
Curtailment and settlement gains (losses) recognized		$ 0	$ 0
Pension benefit plans | U.S. Pension Benefits | Scenario, forecast
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	6.75%
Pension benefit plans | U.S. Pension Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage		60.00%
Pension benefit plans | U.S. Pension Benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, plan assets, target allocation, percentage		70.00%
Pension benefit plans | Non-U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		3.30%	3.40%
Expected employer contributions within the next year		$ 48
Curtailment and settlement gains (losses) recognized		$ (1)	$ (1)	$ (7)
Settlement loss, net of tax				$ (6)
Pension benefit plans | Non-U.S. Pension Benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		0.30%	0.50%
Pension benefit plans | Non-U.S. Pension Benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		5.00%	5.00%
Pension benefit plans | Non-U.S. Pension Benefits | Weighted average
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions		3.30%	3.40%
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Medical trend rate - initial		5.30%	5.50%
Medical trend rate - ultimate		4.00%	4.50%
Unrecognized prior service credits, before tax		$ (12)
Prior service credit, after tax		(9)
Unrecognized actuarial losses, before tax		(23)
Unrecognized actuarial losses, net of tax		(17)
Expected employer contributions within the next year		14
Curtailment and settlement gains (losses) recognized		$ 0	$ 0
Other postretirement benefits | Minimum
Defined Benefit Plan Disclosure [Line Items]
Medical trend rate - grading period		24 years
Other postretirement benefits | Maximum
Defined Benefit Plan Disclosure [Line Items]
Medical trend rate - grading period		25 years