Long-Term Debt (Components Of Long-Term Debt) (Details) - USD ($) $ in Thousands	Apr. 30, 2021	Aug. 07, 2020	Apr. 30, 2020
Debt Instrument [Line Items]
Committed line of credit borrowings			$ 2,000,000
Debt issuance costs and discounts	$ (9,961)		(4,743)
Total long term debt	1,490,039		3,495,257
Less: Current portion	0		(649,384)
Long-term debt excluding current portion	1,490,039		2,845,873
Estimated fair value of long-term debt	$ 1,609,000		3,526,000
Senior Notes \| Senior Notes, 4.125%, due October 2020
Debt Instrument [Line Items]
Interest rate	4.125%
Senior notes	$ 0		650,000
Senior Notes \| Senior Notes, 5.500%, due November 2022
Debt Instrument [Line Items]
Interest rate	5.50%
Senior notes	$ 500,000		500,000
Senior Notes \| Senior Notes, 5.250%, due October 2025
Debt Instrument [Line Items]
Interest rate	5.25%
Senior notes	$ 350,000		350,000
Senior Notes \| 2030 Senior Notes
Debt Instrument [Line Items]
Interest rate	3.875%	3.875%
Senior notes	$ 650,000		$ 0

Contractual interest rate for funds borrowed, under the debt agreement.

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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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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.

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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

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- Definition

Amount of long-term debt and lease obligation, classified as noncurrent.

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

+ References

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

+ References

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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