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Employee Benefit Plans - Summary of Balance Sheet Components (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Noncurrent employee benefit plans | $ (4,082) | $ (4,357)
Pension Benefits | U.S. |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 31 | 26
Accrued liabilities | (145) | (210)
Noncurrent employee benefit plans | (1,141) | (1,587)
Net amount recognized at December 31 | (1,255) | (1,771)
Pension Benefits | Int'l. |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 703 | 759
Accrued liabilities | (73) | (62)
Noncurrent employee benefit plans | (837) | (765)
Net amount recognized at December 31 | (207) | (68)
Other Benefits |  |
Consolidated Balance Sheet for pension and other postretirement benefit plans |  |
Deferred charges and other assets | 0 | 0
Accrued liabilities | (154) | (152)
Noncurrent employee benefit plans | (1,863) | (1,786)
Net amount recognized at December 31 | $ (2,017) | $ (1,938)

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