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Supplementary Information Supplementary Information (Narrative) (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Accrued and other current liabilities $ 4,434 $ 4,005 [1]
Accounts Payable 3,702 3,798
Accounts Payable, Trade, Current $ 2,577 $ 2,602
[1]
Includes adjustments for discontinued operations and common control business combination.