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Supplemental Financial Information - Other Non-Current Liabilities (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Other Liabilities, Noncurrent [Abstract] |  |
Extended Emergency Time Off | $ 131 | $ 0
Voluntary Separation Program 2020 | 377 | 0
Postretirement obligation | 339 | 288
Other deferred compensation | 287 | 313
Other | 99 | 105
Other noncurrent liabilities | $ 1,233 | $ 706

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- Definition Voluntary Separation Program 2020 Other Noncurrent Liability + References No definition available. + Details
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