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Debt and Derivatives - Classification and Utilization (Detail) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2022 | Dec. 31, 2023
Debt |  |
Debt maturing or subject to remarketing within twelve months |  | $ 2,800
Revolving Credit Facility [Member] |  |
Debt |  |
Maximum capacity |  | 3,500
Accordion option capacity | $ 1,000 |
Outstanding borrowings under credit facility |  | 0
Letters of credit outstanding |  | 180
Unused and available credit capacity |  | 2,500
Revolving Credit Facility [Member] | Minimum [Member] |  |
Debt |  |
Spread rate | 0.585% |
Revolving Credit Facility [Member] | Maximum [Member] |  |
Debt |  |
Spread rate | 1.025% |
Revolving Credit Facility [Member] | SOFR [Member] |  |
Debt |  |
Spread rate | 0.10% |
Credit Facility Revolving Canadian [Member] |  |
Debt |  |
Maximum capacity | $ 375 |
Term Loan [Member] |  |
Debt |  |
Maximum capacity | $ 1,000 |
Debt term | 2 years |
Commercial Paper Program [Member] |  |
Debt |  |
Debt maturing or subject to remarketing within twelve months |  | $ 859
Debt term |  | 397 days
Commercial paper borrowings |  | $ 859
Tax Exempt Bonds [Member] |  |
Debt |  |
Debt maturing or subject to remarketing within twelve months |  | 60
Debt with interest rate periods that expire in the next 12 months |  | 1,600
Debt classified as long-term due to intent and ability to refinance on long-term basis |  | $ 2,400
Tax Exempt Bonds [Member] | Minimum [Member] |  |
Debt |  |
Interest rate (as a percent) |  | 0.55%
Tax Exempt Bonds [Member] | Maximum [Member] |  |
Debt |  |
Interest rate (as a percent) |  | 5.00%
Senior Notes 3.5 % Due 2024 Member |  |
Debt |  |
Debt maturing or subject to remarketing within twelve months |  | $ 156
Interest rate (as a percent) |  | 3.50%
Other Letter Of Credit Lines [Member] |  |
Debt |  |
Letters of credit outstanding |  | $ 834
Financing leases and other [Member] |  |
Debt |  |
Debt maturing or subject to remarketing within twelve months |  | $ 175

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- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: 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)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: 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(13)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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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 Amount of short-term borrowings, long-term debt and financing leases due or subject to remarketing within the next twelve months, including amounts classified as current and amounts classified as noncurrent due to intent and ability to refinance. + References No definition available. + Details
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