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LONG-TERM DEBT - Refinancing Activities (Details) - USD ($) $ in Millions |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 11, 2021 | Oct. 22, 2020 | Oct. 22, 2018 | Jul. 31, 2021
Term Loan Facility | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Prepayments |  |  |  | $ 771
Prepayment from cash flow generated |  |  |  | 72
Prepayments with asset sale proceeds |  |  |  | 13
Term Loan Facility, Term B Tranche | Secured Debt |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Prepayments |  | $ 500 |  | 500
Write-off of unamortized debt issuance costs |  |  |  | 15
Write-off of unamortized original issue discount |  |  |  | 15
ABL Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Voluntary prepayments |  |  |  | $ 186
Secured Debt | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread on reference rate (as a percent) | 3.50% |  | 4.25% |
Secured Debt | Base Rate |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread on reference rate (as a percent) | 2.50% |  | 3.25% |
Secured Debt | Term Loan Facility | LIBOR |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread on reference rate (as a percent) |  |  |  | 3.50%
Secured Debt | Term Loan Facility | Base Rate |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread on reference rate (as a percent) |  |  |  | 2.50%

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