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Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Supplemental Cash Flow Information [Abstract]
Increase (decrease) in PP&E related to an increase (decrease) in asset retirement obligations	$ 825	$ 442	$ (116)
Interest	873	924	785
Income taxes	7,368	856	905
Short-term investments purchased	(5,046)	(5,554)	(12,435)
Short-term investments sold	3,102	8,810	12,015
Investments and long-term receivables purchased	(775)	(279)	(325)
Investments and long-term receivables sold	90	114	87
Net Sales (Purchases) of Investments	$ (2,629)	$ 3,091	$ (658)

X

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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The increase (decrease) during the reporting period in the carrying amount of asset retirement obligations.

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