Pension And Other Postretirement Employee Benefit Plans (ABO) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Pension benefit plans | U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 2,532	$ 2,718
Fair value of plan assets	2,303	2,125
Pension benefit plans | Non-U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	1,184	1,257
Fair value of plan assets	521	434
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	135	148
Fair value of plan assets	$ 0	$ 0