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]
Defined Contribution Plan, Cost		$ 88	$ 95	$ 96
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		12,182	12,873	$ 11,950
Pension Benefits | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		$ 11,086	$ 11,700
Weighted average expected return on plan assets		5.00%	5.50%	5.75%
Pension Benefits | Non- U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		$ 1,096	$ 1,173
Pension Benefits | Scenario, Forecast | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected return on plan assets	5.00%
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		1,138	1,252	$ 1,289
Other Postretirement Benefits | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		$ 1,099	$ 1,208
Weighted average expected return on plan assets		3.87%	4.31%	5.04%
Expected future discretionary contributions		$ 30
Other Postretirement Benefits | Non- U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		39	$ 44
Other Postretirement Benefits | Scenario, Forecast | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Weighted average expected return on plan assets	3.86%
United States Pension Plan of US Entity, Non Qualified [Member]
Defined Benefit Plan Disclosure [Line Items]
Aggregate projected benefit obligations		1,300	$ 1,400
Expected future discretionary contributions		$ 85