Pension, Other Postretirement Benefits and Savings Plans - Funded Status Recognized in the Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Noncurrent liabilities	$ (1,445)	$ (1,470)
Pension Plan [Member] | UNITED STATES
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets	96	0
Current liabilities	(7)	(11)
Noncurrent liabilities	(167)	(254)
Net amount recognized	(78)	(265)
Pension Plan [Member] | Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets	432	408
Current liabilities	(22)	(22)
Noncurrent liabilities	(602)	(727)
Net amount recognized	(192)	(341)
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Noncurrent assets	0	0
Current liabilities	(25)	(16)
Noncurrent liabilities	(381)	(220)
Net amount recognized	$ (406)	$ (236)