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

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- Definition

Amount of assets pledged to secure a debt instrument.

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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

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.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt discount.

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- Definition

Weighted average interest rate of debt outstanding.

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No definition available.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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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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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.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

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Long-Term Obligations and Commitments - Narrative (Details) - USD ($)		1 Months Ended	12 Months Ended
	Feb. 19, 2019	Jun. 30, 2020	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt, net of discount and issuance costs			$ 1,983,000,000	$ 0	$ 0
Interest paid			14,000,000	17,000,000	19,000,000
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Interest paid			2,000,000	0	$ 5,000,000
The Notes \| Senior Unsecured Notes
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt, net of discount and issuance costs		$ 1,980,000,000
Debt discount		2,000,000
Debt issuance costs		$ 15,000,000
Repurchase price (in percent)		101.00%
Secured Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility \| Subsidiary
Debt Instrument [Line Items]
Credit facility, term	2 years
Revolving credit facility	$ 300,000,000
Interest accrual, unused portion	0.50%
Amount outstanding under credit facility			$ 48,000,000
Weighted-average interest rate			5.74%
Amounts secured on outstanding balance			$ 144,000,000
Interest paid			$ 3,000,000	$ 1,000,000
Secured Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility \| London Interbank Offered Rate (LIBOR) \| Subsidiary
Debt Instrument [Line Items]
Basis spread on variable rate	2.39%