Derivative and Financial Instruments - Financial Instruments, Debt Securities Carried at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	$ 6,458	$ 5,028
Short-Term Investments	2,785	446
Investments and long-term receivables	8,225	7,113
Within one year \| Carrying Amount
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	97	10
Short-Term Investments	603	221
Within one year \| Carrying Amount \| Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	0	3
Short-Term Investments	323	128
Within one year \| Carrying Amount \| Commercial Paper
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	97	7
Short-Term Investments	156	82
Within one year \| Carrying Amount \| U.S. Government Obligations
Debt Securities, Available-for-sale [Line Items]
Cash and cash equivalents	0	0
Short-Term Investments	115	0
Within one year \| Carrying Amount \| U.S. Government Agency Obligations
Debt Securities, Available-for-sale [Line Items]
Short-Term Investments	8	2
Within one year \| Carrying Amount \| Foreign Government Obligations
Debt Securities, Available-for-sale [Line Items]
Short-Term Investments	0	7
Within one year \| Carrying Amount \| Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Short-Term Investments	1	2
One year through eight years \| Carrying Amount
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	522	248
One year through eight years \| Carrying Amount \| Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	309	173
One year through eight years \| Carrying Amount \| U.S. Government Obligations
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	63	2
One year through eight years \| Carrying Amount \| U.S. Government Agency Obligations
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	5	8
One year through eight years \| Carrying Amount \| Foreign Government Obligations
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	7	2
One year through eight years \| Carrying Amount \| Asset-backed Securities
Debt Securities, Available-for-sale [Line Items]
Investments and long-term receivables	$ 138	$ 63

Amount of investments including trading securities, held-to-maturity securities, and short-term investments classified as other and current but excluding investement in Cenovus Energy Common Shares.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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Amount, after allowance for credit loss, of accounts and financing receivables, classified as noncurrent. Includes, but is not limited to, notes and loan receivable.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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