Change in operating earnings due to change in accounting estimate under the cumulative catch-up method of accounting.

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- Definition

Amount of gain on the receipt of property that does not qualify for gain recognition as of the balance sheet date.

+ References

No definition available.

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- Definition

The total amount of cash and securities held by third party trustees pursuant to terms of debt instruments or other agreements as of the date of each statement of financial position presented, which can be used by the trustee only to pay the noncurrent portion of specified obligations.

+ 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.

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No definition available.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Topic 470
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- Definition

Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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-Topic 310
-SubTopic 10
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- References

No definition available.

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- Definition

Disclosure of the unamortized amount of the discount on the note or receivable which is deducted from the face amount of the receivable or loan. The discount or premium is the difference between the present value and the face amount.

+ References

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-Publisher FASB
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-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
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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.

+ References

No definition available.

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Basis of Presentation (Narrative) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred gain on receipt of property	$ 17	$ 71
Assets held in rabbi trusts	165		$ 147
Financing Receivable, after Allowance for Credit Loss	33
Receivable with Imputed Interest, Discount	15
Related Party Transaction [Line Items]
Long-term Debt	2,278		1,286
Mississippi Economic Development Revenue Bonds Due May 1, 2024, 7.81% \| Bonds
Related Party Transaction [Line Items]
Long-term Debt	84		$ 84
COVID-19 Events [Member]
Change in Accounting Estimate
Increase (decrease) in operating income due to net cumulative catch-up adjustments	$ (61)