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Pension, Other Postretirement Benefits and Savings Plans - Fair Values of Pension Plan Assets (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
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UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | $ 202 | $ 1,674 |
Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 360 | 650 |
Pension Plan [Member] | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 4,174 | 5,720 | $ 4,970
Pension Plan [Member] | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,043 | 3,272 | 3,041
Pension Plan [Member] | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,685 | 3,879 |
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 | 1,421 | 2,339 |
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 | 5 | 71 |
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 | 219 |
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 1 |
Pension Plan [Member] | Significant Unobservable Inputs (Level 3) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 20 | 25 |
Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,679 | 3,807 |
Pension Plan [Member] | Significant Other Observable Inputs (Level 2) | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,224 | 2,095 |
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 | 7 | 71 |
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 | 47 | 56 |
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 | 5 | 71 |
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 | 43 | 51 |
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] | Cash and short term securities | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2 | 0 |
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 | 4 | 5 |
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 | 22 | 28 |
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 | 22 | 28 |
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, 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, 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 | 14 | 20 |
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 | 14 | 20 |
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 | 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 | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 0 | 8 |
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 | 38 | 102 |
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 | 15 | 37 |
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 | 6 | 8 |
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 | 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 | 9 | 29 |
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 | 111 | 167 |
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 | 3 | 2 |
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 | 1,873 | 2,673 |
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 | 222 | 286 |
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 | 4 | 5 |
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 | 0 |
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, Corporate Bonds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1,873 | 2,673 |
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 | 218 | 281 |
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 | 646 | 958 |
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 | 1,369 | 2,391 |
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 | 51 | 71 |
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, Government Bonds | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 646 | 958 |
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 | 1,318 | 2,320 |
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 | (348) | (570) |
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 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, 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 | (348) | (570) |
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 | 157 | 172 |
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 | 21 | 26 |
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 | 5 | 7 |
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, Asset-backed Securities | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 157 | 172 |
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 | 16 | 19 |
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 |
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 | 25 | 29 |
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 | 19 | 20 |
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 | 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 | 6 | 9 |
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 | 283 | 388 |
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 | 453 | 708 |
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 | 10 | 9 |
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 | 10 | 9 |
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 | 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 | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 558 | 877 |
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 | 43 | 76 |
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 | 20 | 25 |
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 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 | 20 | 25 | $ 28
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 Derivatives | Fair Value, Inputs, Level 1, 2 and 3 | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 4 |
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 | 1 | 2 |
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 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 Derivatives | Significant Other Observable Inputs (Level 2) | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 1 | 4 |
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 | 1 | 2 |
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 | 119 | 161 |
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 | 13 |
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 |  |
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 | 20 |  |
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 | 153 | 143 |
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 | 29 | 39 |
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 | 222 | 78 |
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 | 14 | 19 |
Pension Plan [Member] | Short Term Securities Pooled Separate Accounts | Fair Value Measured at Net Asset Value Per Share | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 10 | 10 |
Pension Plan [Member] | Short Term Securities Pooled Separate Accounts | 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] | 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 |  |
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 | 3 |  |
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 |  |
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 | 3 |  |
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 |  |
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 |  |
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 |  |
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 |  |
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 | 44 | 60 |
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 | 43 | 39 |
Pension Plan [Member] | Investments Before Other Plan Assets | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 4,185 | 5,771 |
Pension Plan [Member] | Investments Before Other Plan Assets | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | 2,064 | 3,337 |
Pension Plan [Member] | Other Assets | UNITED STATES |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | (11) | (51) |
Pension Plan [Member] | Other Assets | Foreign Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Total plan assets, fair value | $ (21) | $ (65) |

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