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CREDIT FACILITIES AND LONG-TERM DEBT- Additional Information (Details) - Line of Credit	Jun. 03, 2022 CAD ($)	Jun. 02, 2022 USD ($)
US Bank Credit Facility
Debt Instrument [Line Items]
Financing commitment amount		$ 3,750,000,000
Credit facility borrowing capacity (up to)		4,500,000,000
US Bank Credit Facility | Used vehicle floor plan
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)		$ 1,000,000,000
US Bank Credit Facility | Used vehicle floor plan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
US Bank Credit Facility | Revolving line of credit
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)		$ 1,500,000,000
Option to reallocate commitment, maximum aggregate commitment threshold percentage		40.00%
Real property overall cap amount		$ 1,000,000,000
US Bank Credit Facility | New vehicle floor plan
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)		$ 1,200,000,000
US Bank Credit Facility | New vehicle floor plan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.20%
US Bank Credit Facility | Service loaner floor plan
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)		$ 50,000,000
Option to reallocate commitment, maximum aggregate commitment threshold percentage		3.00%
US Bank Credit Facility | Service loaner floor plan | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.30%
US Bank Credit Facility | Working capital revolver | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate		1.10%
Bank Of Nova Scotia Credit Agreement
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	$ 1,125,000,000
Bank Of Nova Scotia Credit Agreement | Minimum | Prime Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.25%
Bank Of Nova Scotia Credit Agreement | Minimum | Canadian Dollar Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate	0.25%
Bank Of Nova Scotia Credit Agreement | Maximum | Canadian Dollar Offered Rate
Debt Instrument [Line Items]
Basis spread on variable rate	1.30%
Bank Of Nova Scotia Credit Agreement | Wholesale Lease Financing
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	$ 400,000,000
Bank Of Nova Scotia Credit Agreement | Motor Vehicle Leases
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	25,000,000
Bank Of Nova Scotia Credit Agreement | Wholesale Flooring Facility
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	500,000,000
Maximum borrowing capacity, accordion feature	200,000,000
Bank Of Nova Scotia Credit Agreement | Financing Under Other Canadian Facilities
Debt Instrument [Line Items]
Maximum borrowing capacity, accordion feature	200,000,000
Bank Of Nova Scotia Credit Agreement | Working Capital And General Corporate Purposes Financing
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	100,000,000
Bank Of Nova Scotia Credit Agreement | Used Motor Vehicles For Sale In Canada And For Export To United States
Debt Instrument [Line Items]
Credit facility borrowing capacity (up to)	$ 100,000,000

X

- Definition

Line Of Credit Facility, Maximum Borrowing Capacity, Accordion Feature

+ References

No definition available.

+ Details

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X

- Definition

Line Of Credit Facility, Option To Reallocate Commitment Maximum Aggregate Commitment Threshold Percentage

+ References

No definition available.

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- Definition

Line Of Credit Facility, Real Property Overall Cap Amount

+ References

No definition available.

+ Details

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- Definition

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

+ References

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- Definition

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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X

- 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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
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