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v3.19.3.a.u2

Debt - Classification and Utilization (Detail) $ in Millions | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Nov. 30, 2019 USD ($) item | Dec. 31, 2019 USD ($) | Oct. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Debt |  |  |  |
Debt maturing or subject to remarketing within twelve months |  | $ 1,500 |  |
Current portion of long-term debt |  | $ 218 |  | $ 432
4.75% senior notes due June 2020 [Member] |  |  |  |
Debt |  |  |  |
Interest rate (as a percent) |  | 4.75% |  |
Debt, before unamortized (discount) premium |  | $ 600 |  |
Tax Exempt Bonds [Member] |  |  |  |
Debt |  |  |  |
Debt instrument face amount |  | 240 |  |
Debt with interest rate periods that expire in the next 12 months |  | 669 |  |
Current portion of long-term debt |  | 112 |  |
Debt classified as long-term due to intent and ability to refinance on long-term basis |  | 1,300 |  |
Variable-rate tax-exempt bonds |  | 169 |  |
Variable-rate tax-exempt bonds, current |  | 15 |  |
Variable-rate tax-exempt bonds, non-current |  | $ 154 |  |
Tax Exempt Bonds [Member] | Minimum [Member] |  |  |  |
Debt |  |  |  |
Interest rate (as a percent) |  | 1.35% |  |
Tax Exempt Bonds [Member] | Maximum [Member] |  |  |  |
Debt |  |  |  |
Interest rate (as a percent) |  | 4.30% |  |
Financing leases and other [Member] |  |  |  |
Debt |  |  |  |
Current portion of long-term debt |  | $ 218 |  |
Revolving Credit Facility [Member] |  |  |  |
Debt |  |  |  |
Outstanding borrowings under credit facility |  | 0 |  |
Maximum capacity | $ 3,500 | 3,500 | $ 2,750 |
Accordion option capacity | $ 1,000 |  | 750 |
Number of extension periods | item | 2 |  |  |
Extension term | 1 year |  |  |
Letters of credit outstanding |  | 412 |  |
Unused and available credit capacity |  | $ 3,100 |  |
Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate [Member] |  |  |  |
Debt |  |  |  |
Spread rate |  | 0.575% |  |
Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate [Member] |  |  |  |
Debt |  |  |  |
Spread rate |  | 1.015% |  |
Credit Facility Revolving Canadian [Member] |  |  |  |
Debt |  |  |  |
Maximum capacity |  | $ 375 |  |
Commercial Paper Program [Member] |  |  |  |
Debt |  |  |  |
Maximum capacity | $ 3,500 |  | $ 2,750 |
Commercial paper, borrowings |  | $ 0 |  |
Debt term |  | 397 days |  |
Other Letter Of Credit Facilities [Member] |  |  |  |
Debt |  |  |  |
Letters of credit outstanding |  | $ 532 |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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 total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 + Details
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- Definition The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time. + References No definition available. + 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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- Definition The portion of short-term borrowings, current maturities of long-term debt and capital lease obligations and borrowings subject to refinancing within the next twelve months, classified as long-term obligations due to the intent and ability to refinance on a long-term basis. + References No definition available. + Details
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