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Pension, Other Postretirement Benefits and Savings Plans - Fair Values of Pension Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | $ 0 | $ 203 |
Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 130 | 445 |
Pension Plan [Member] | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 3,447 | 3,724 | $ 4,174
Pension Plan [Member] | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,906 | 2,146 | 2,043
Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,861 | 2,741 |
Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,431 | 1,644 |
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 6 |
Pension Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 177 | 200 |
Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,860 | 2,733 |
Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,231 | 1,423 |
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 2 |
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 23 | 21 |
Pension Plan [Member] | Cash and short term securities | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 3 | 11 |
Pension Plan [Member] | Cash and short term securities | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 34 | 50 |
Pension Plan [Member] | Cash and short term securities | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 |  |
Pension Plan [Member] | Cash and short term securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value |  | 6 |
Pension Plan [Member] | Cash and short term securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 32 | 46 |
Pension Plan [Member] | Cash and short term securities | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 3 | 5 |
Pension Plan [Member] | Cash and short term securities | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2 | 4 |
Pension Plan [Member] | Cash and short term securities | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Cash and short term securities | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Common and Preferred Stock | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 7 | 5 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 7 | 5 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 31 | 29 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 50 | 43 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 27 | 22 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 23 | 21 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Equity Securities, Mutual Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 4 | 4 |
Pension Plan [Member] | Equity Securities, Partnership Interests | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 77 | 95 |
Pension Plan [Member] | Equity Securities, Partnership Interests | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,003 | 1,832 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 193 | 223 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,003 | 1,831 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 193 | 223 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 1 |
Pension Plan [Member] | Debt Securities, Corporate Bonds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Government Bonds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 654 | 729 |
Pension Plan [Member] | Debt Securities, Government Bonds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,475 | 1,676 |
Pension Plan [Member] | Debt Securities, Government Bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Government Bonds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 54 | 67 |
Pension Plan [Member] | Debt Securities, Government Bonds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 654 | 729 |
Pension Plan [Member] | Debt Securities, Government Bonds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,421 | 1,609 |
Pension Plan [Member] | Debt Securities, Government Bonds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Government Bonds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | (425) | (453) |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | (425) | (453) |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Repurchase Agreements | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 193 | 163 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 17 | 18 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 193 | 163 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 17 | 18 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Asset-backed Securities | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 16 | 18 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 16 | 18 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 210 | 216 |
Pension Plan [Member] | Debt Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 363 | 385 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 38 | 38 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 38 | 38 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 75 | 289 |
Pension Plan [Member] | Debt Securities, Mutual Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 40 | 44 |
Pension Plan [Member] | Debt Securities, Partnership Interests | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 131 | 150 |
Pension Plan [Member] | Debt Securities, Partnership Interests | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 14 | 23 |
Pension Plan [Member] | Alternatives, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 2 |
Pension Plan [Member] | Alternatives, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 2 |
Pension Plan [Member] | Alternatives, Commingled Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 21 | 27 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 23 | 21 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Alternatives, Insurance Contracts | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 23 | 21 | $ 20
Pension Plan [Member] | Alternatives Derivatives | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 7 | 5 |
Pension Plan [Member] | Alternatives Derivatives | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 1 |
Pension Plan [Member] | Alternatives Derivatives | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives Derivatives | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives Derivatives | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 7 | 5 |
Pension Plan [Member] | Alternatives Derivatives | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 1 |
Pension Plan [Member] | Alternatives Derivatives | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives Derivatives | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Fair Value, Inputs, Level 1, 2 and 3 | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Alternatives, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Alternatives, Mutual Funds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives, Mutual Funds | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives Partnership Interests | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 0 |
Pension Plan [Member] | Alternatives Partnership Interests | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 11 | 9 |
Pension Plan [Member] | Short Term Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 101 | 227 |
Pension Plan [Member] | Short Term Securities, Commingled Funds | Fair Value Measured at Net Asset Value Per Share | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 8 | 7 |
Pension Plan [Member] | Investments Before Other Plan Assets | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 3,455 | 3,718 |
Pension Plan [Member] | Investments Before Other Plan Assets | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,923 | 2,172 |
Pension Plan [Member] | Other Assets | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | (8) | 6 |
Pension Plan [Member] | Other Assets | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | $ (17) | $ (26) |

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