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Pension and Other Postretirement Benefits (Schedule of Accumulated Benefit Obligations in Excess of Plan Assets) (Details) - Pension Plan - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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U.S. Plans |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Projected benefit obligations | $ 1,440 | $ 1,371
Accumulated benefit obligations | 1,397 | 1,327
Fair value of plan assets | 1,131 | 1,012
Non-U.S. Plans |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Projected benefit obligations | 399 | 363
Accumulated benefit obligations | 383 | 329
Fair value of plan assets | $ 187 | $ 167

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