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Supplemental Financial Information - Other Non-Current Liabilities (Details) - USD ($) $ in Millions | Jun. 30, 2023 | Dec. 31, 2022
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Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |
Voluntary Separation Program | $ 104 | $ 147
Postretirement obligation | 241 | 241
Other deferred compensation | 357 | 331
Other | 234 | 250
Other noncurrent liabilities | $ 936 | $ 969

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