Debt and Credit Agreements - Summary of Bank Commitments, Credit Facility Borrowings and Available Capacity (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Aggregate Bank Commitment	$ 6,308	$ 6,108
Facility Draws	0	0
Outstanding Letters of Credit	1,932	1,775
Actual Available Capacity	1,271	1,107
To Support Additional Commercial Paper Available Capacity	3,034	3,166
Commercial Paper
Short-term Debt [Line Items]
Aggregate Bank Commitment	$ 3,500	$ 3,500
Weighted average interest rate	5.56%	5.66%
Revolving Credit Facility
Short-term Debt [Line Items]
Aggregate Bank Commitment	$ 3,500	$ 3,500
Facility Draws	0	0
Outstanding Letters of Credit	107	60
Actual Available Capacity	1,271	1,107
To Support Additional Commercial Paper Available Capacity	2,122	2,333
Bilateral Credit Agreements
Short-term Debt [Line Items]
Aggregate Bank Commitment	1,700	1,500
Facility Draws	0	0
Outstanding Letters of Credit	833	878
Actual Available Capacity	0	0
To Support Additional Commercial Paper Available Capacity	867	622
Liquidity Facility
Short-term Debt [Line Items]
Aggregate Bank Commitment	971	971
Facility Draws	0	0
Outstanding Letters of Credit	877	720
Actual Available Capacity	0	0
To Support Additional Commercial Paper Available Capacity	23	191
Liquidity Facility \| No Additional Collateral Posted
Short-term Debt [Line Items]
Actual Available Capacity	900	911
Secured debt
Short-term Debt [Line Items]
Aggregate Bank Commitment	137	137
Facility Draws	0	0
Outstanding Letters of Credit	115	117
Actual Available Capacity	0	0
To Support Additional Commercial Paper Available Capacity	22	$ 20
Bilateral Credit Agreement, March 2024
Short-term Debt [Line Items]
Aggregate Bank Commitment	$ 200

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16)(a)(2))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for financing purchases of goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

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.

+ References

No definition available.

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- Definition

Weighted average interest rate of short-term debt outstanding calculated at point in time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

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