Pension, Other Postretirement Benefits and Savings Plans - Amounts Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	$ 3	$ (3)
Net actuarial loss	1,836	2,160
Gross amount recognized	1,839	2,157
Deferred income taxes	81	3
Minority shareholders’ equity	0	0
Net amount recognized	1,920	2,160
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	22	26
Net actuarial loss	435	465
Gross amount recognized	457	491
Deferred income taxes	(59)	(64)
Minority shareholders’ equity	(4)	(1)
Net amount recognized	394	426
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service (credit) cost	(4)	(5)
Net actuarial loss	(96)	7
Gross amount recognized	(100)	2
Deferred income taxes	1	(23)
Minority shareholders’ equity	0	0
Net amount recognized	$ (99)	$ (21)