Pensions Benefit Plans and Other Postretirement Benefits - Funded Status (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefit Plans. | Minimum
Defined Benefit Plan Disclosure
Percentage of pension plan assets	10.00%
Pension Benefit Plans. | U.S. | Funded Plan
Defined Benefit Plan Disclosure
Plan assets at fair value	$ 812	$ 1,168	$ 1,324
Projected benefit obligations	860	1,242	1,590
Plan assets less than projected benefit obligations	(48)	(74)
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial gain (loss)	381	437
Total	381	437
Net amount recognized	333	363
Pension Benefit Plans. | Foreign | Funded Plan
Defined Benefit Plan Disclosure
Plan assets at fair value	547	923	929
Projected benefit obligations	669	990	1,127
Plan assets less than projected benefit obligations	(122)	(67)
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial gain (loss)	289	259
Prior service cost (credit)	9	10
Total	298	269
Net amount recognized	176	202
Postretirement Benefits Other Than Pensions | U.S. | Funded Plan
Defined Benefit Plan Disclosure
Projected benefit obligations	22	34	38
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial gain (loss)	(12)	8
Prior service cost (credit)	(18)	(26)
Total	(30)	(18)
Net amount recognized	(52)	(52)
Postretirement Benefits Other Than Pensions | Foreign | Funded Plan
Defined Benefit Plan Disclosure
Projected benefit obligations	45	76	$ 80
Items not yet recognized in pension expense and net postretirement benefit cost:
Prior service cost (credit)	(40)	(13)
Total	(40)	(13)
Net amount recognized	$ (85)	$ (89)