Pensions FV Assets (Details) - Pension Plans, Defined Benefit [Member] - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
United States
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		$ 1,226	$ 1,267	$ 1,201
United States | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	$ 1,226	1,267
United States | U.S. Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		10.00%
Fair Value of Plan Assets		$ 124	125
United States | U.S. Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	$ 124	125
United States | International Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		10.00%
Fair Value of Plan Assets		$ 117	126
United States | International Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	$ 117	126
United States | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		80.00%
Fair Value of Plan Assets		$ 966	1,001
United States | Fixed Income Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	966	1,001
United States | Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		19	15
United States | Money Market Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	19	15
Foreign Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		1,302	1,160	$ 986
Foreign Plan [Member] | Quoted Prices in Active Markets (Level I) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		5	7
Foreign Plan [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		295	262
Foreign Plan [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	1,002	891
Foreign Plan [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		651	510
Foreign Plan [Member] | Fixed Income Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	651	510
Foreign Plan [Member] | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		17	74
Foreign Plan [Member] | Equity Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	17	74
Foreign Plan [Member] | Hedge Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		3	59
Foreign Plan [Member] | Hedge Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	3	59
Foreign Plan [Member] | Multi-asset Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		73	45
Foreign Plan [Member] | Multi-asset Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	73	45
Foreign Plan [Member] | Derivative Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		253	149
Foreign Plan [Member] | Derivative Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	253	149
Foreign Plan [Member] | Alternative Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		1	6
Foreign Plan [Member] | Alternative Investments [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	1	6
Foreign Plan [Member] | Insurance Contracts [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		295	262
Foreign Plan [Member] | Insurance Contracts [Member] | Significant Other Observable Inputs (Level 2) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		295	262
Foreign Plan [Member] | Cash / Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		9	55
Foreign Plan [Member] | Cash / Money Market Funds [Member] | Quoted Prices in Active Markets (Level I) [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets		5	7
Foreign Plan [Member] | Cash / Money Market Funds [Member] | Fair Value Measured at Net Asset Value Per Share [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair Value of Plan Assets	[1]	$ 4	$ 48
Foreign Plan [Member] | Minimum [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		40.00%
Foreign Plan [Member] | Minimum [Member] | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		0.00%
Foreign Plan [Member] | Minimum [Member] | Multi-asset Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		0.00%
Foreign Plan [Member] | Minimum [Member] | Derivative Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		0.00%
Foreign Plan [Member] | Maximum [Member] | Fixed Income Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		90.00%
Foreign Plan [Member] | Maximum [Member] | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		25.00%
Foreign Plan [Member] | Maximum [Member] | Multi-asset Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		35.00%
Foreign Plan [Member] | Maximum [Member] | Derivative Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Plan Assets, Approximate Target Allocation, Percentage		30.00%

[1] Investments measured at the net asset value per share (or its equivalent) practical expedient have not been classified in the fair value hierarchy.