Debt Instrument, Covenant Compliance, Default Provision Trigger Amount

No definition available.

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- Definition

Monetary value of the accordion feature, the additional line of credit portion that could be borrowed against with the approval of the issuing banks.

+ References

No definition available.

+ Details

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- Definition

Maximum available borrowing capacity under the credit facility with consideration of any additional committed line portions under the accordion feature that could be borrowed against with the approval of the issuing banks.

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Number of Credit Facilities

+ References

No definition available.

+ Details

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- Definition

Public Utilities, Actual Debt Capital Structure, Percentage

+ References

No definition available.

+ Details

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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.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ 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.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

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

+ References

+ Details

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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.

+ Details

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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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

Weighted average interest rate of debt outstanding.

+ 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.

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Period Type:	instant

- 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

+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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- Definition

The net cash outflow or inflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

+ References

No definition available.

+ Details

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- Definition

The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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Balance Type:	debit
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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- Definition

Percentage of public utility's approved debt to capital, including debt and equity.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's approved equity to capital, including debt and equity.

+ References

No definition available.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Debt - Narrative (Details)								1 Months Ended		12 Months Ended
Debt - Narrative (Details)	Oct. 03, 2022 USD ($)	Apr. 01, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jan. 18, 2022 USD ($)	Oct. 01, 2021 USD ($)	Mar. 09, 2021 USD ($)	Oct. 01, 2020 USD ($)	Oct. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) creditFacility	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Jan. 14, 2022 USD ($)	Mar. 31, 2021 USD ($)
Debt Instrument [Line Items]
Proceeds from hedge										$ 197,073,000	$ 62,159,000	$ (4,426,000)
Long term debt										$ 7,960,000,000
Ratio of total debt to total capitalization maximum										70.00%
Total-debt-to-total-capitalization ratio										47.00%
Minimum
Debt Instrument [Line Items]
Equity-to-capitalization ratio										50.00%
Outstanding indebtedness										$ 15,000,000
Maximum
Debt Instrument [Line Items]
Equity-to-capitalization ratio										60.00%
Outstanding indebtedness										$ 100,000,000
Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
Proceeds from hedge								$ 197,100,000
Unsecured Senior Notes Due 2053 \| Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
Debt face amount	$ 500,000,000
Interest rate	5.75%
Effective rate	4.504%
Unsecured Senior Notes Due 2033 \| Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
Debt face amount	$ 300,000,000
Interest rate	5.45%
Effective rate	5.57%
Unsecured Senior Notes Due 2033 and Unsecured Senior Notes Due 2053 \| Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
Proceeds from issuance of debt	$ 789,400,000
Unsecured 2.625% Senior Notes, due September 2029
Debt Instrument [Line Items]
Interest rate										2.625%
Long term debt									$ 300,000,000	$ 500,000,000	300,000,000
Unsecured 2.625% Senior Notes, due September 2029 \| Senior Notes
Debt Instrument [Line Items]
Debt face amount													$ 200,000,000
Interest rate													2.625%
Effective rate													2.54%
Long term debt													$ 200,800,000
Floating-rate term loan, due April 2022
Debt Instrument [Line Items]
Long term debt									200,000,000	$ 0	200,000,000
Floating-rate term loan, due April 2022 \| Senior Notes
Debt Instrument [Line Items]
Repayments of debt				$ 200,000,000
Unsecured 2.85% Senior Notes, due February 2052
Debt Instrument [Line Items]
Interest rate										2.85%
Long term debt									0	$ 600,000,000	0
Unsecured 2.85% Senior Notes, due February 2052 \| Senior Notes
Debt Instrument [Line Items]
Debt face amount					$ 600,000,000	$ 1,100,000,000
Interest rate					2.85%	0.625%
Effective rate					2.58%	0.834%
Proceeds from issuance of debt					$ 589,800,000				62,200,000
Floating Rate Senior Notes Due 2023 \| Senior Notes \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread percent						0.38%
Senior Notes Due 2023
Debt Instrument [Line Items]
Debt face amount						$ 2,200,000,000								$ 2,200,000,000
Senior Notes Due 2023 \| Senior Notes
Debt Instrument [Line Items]
Proceeds from debt						$ 2,200,000,000
Redemption price, percentage						100.00%
Unsecured 1.50% Senior Notes, Due 2031 \| Senior Notes
Debt Instrument [Line Items]
Debt face amount							$ 600,000,000
Interest rate							1.50%
Effective rate							1.71%
Proceeds from issuance of debt							$ 592,300,000
Unsecured 1.50% Senior Notes, Due 2031 \| Subsequent Event \| Senior Notes
Debt Instrument [Line Items]
Debt face amount	$ 800,000,000
Five Year Unsecured Revolving Credit Agreement
Debt Instrument [Line Items]
Commercial paper									0	185,000,000	0
Five Year Unsecured Revolving Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity										$ 2,500,000,000
Number of credit facilities \| creditFacility										4
Five Year Unsecured Revolving Credit Agreement \| Commercial Paper
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 1,500,000,000							$ 1,500,000,000
Debt term										5 years
Loan increase potential			1,750,000,000
Weighted average interest rate										3.06%
Credit facility, accordion feature			$ 250,000,000
Five Year Unsecured Revolving Credit Agreement \| Weighted Average \| Commercial Paper
Debt Instrument [Line Items]
Debt term										1 month
Five Year Unsecured Revolving Credit Agreement \| Base Rate \| Minimum \| Commercial Paper
Debt Instrument [Line Items]
Basis spread percent			0.00%
Five Year Unsecured Revolving Credit Agreement \| Base Rate \| Maximum \| Commercial Paper
Debt Instrument [Line Items]
Basis spread percent			25.00%
Five Year Unsecured Revolving Credit Agreement \| Secured Overnight Financing Rate (SOFR) Rate \| Minimum \| Commercial Paper
Debt Instrument [Line Items]
Basis spread percent			75.00%
Five Year Unsecured Revolving Credit Agreement \| Secured Overnight Financing Rate (SOFR) Rate \| Maximum \| Commercial Paper
Debt Instrument [Line Items]
Basis spread percent			125.00%
$900 Million Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 900,000,000							$ 900,000,000
Debt term										3 years
Loan increase potential										$ 1,000,000,000
Credit facility, accordion feature			$ 100,000,000
Line of credit borrowings outstanding									0	0	0
$900 Million Revolving Credit Facility \| Base Rate \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread percent			0.00%
$900 Million Revolving Credit Facility \| Base Rate \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread percent			25.00%
$900 Million Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Rate \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread percent			75.00%
$900 Million Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Rate \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread percent			125.00%
$50 Million Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50,000,000
Debt term		364 days
Line of credit borrowings outstanding									$ 0	0	$ 0
$50 Million Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 50,000,000
Debt term			364 days
Line of credit borrowings outstanding										0
Remaining borrowing capacity										$ 44,400,000