Amount of share of profit from continuing operations and total comprehensive income from associates.

No definition available.

Name:	gfl_ShareOfProfitFromContinuingOperationsAndTotalComprehensiveIncomeFromAssociates
Namespace Prefix:	gfl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of share of profit from continuing operations and total comprehensive income from joint venture.

+ References

No definition available.

+ Details

Name:	gfl_ShareOfProfitFromContinuingOperationsAndTotalComprehensiveIncomeFromJointVenture
Namespace Prefix:	gfl_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of consideration paid or received in respect of both obtaining and losing control of subsidiaries or other businesses. [Refer: Subsidiaries [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 7
-IssueDate 2023-01-01
-Paragraph 40
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_40_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ConsiderationPaidReceived
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of goodwill in a business combination that is expected to be deductible for tax purposes. [Refer: Goodwill; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph k
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_k&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_GoodwillExpectedDeductibleForTaxPurposes
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The amount of measurement period adjustments recognised for particular assets, liabilities, non-controlling interests or items of consideration if the initial accounting for a business combination is incomplete. The measurement period is the period after the acquisition date during which the acquirer may adjust the provisional amounts recognised for a business combination. [Refer: Non-controlling interests; Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B67
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_a_iii&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_MeasurementPeriodAdjustmentsRecognisedForParticularAssetsLiabilitiesNoncontrollingInterestsOrItemsOfConsideration
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The profit (loss) from continuing and discontinued operations attributable to owners of the parent. [Refer: Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
-Paragraph 81B
-Subparagraph a
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_81B_a_ii&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ProfitLossAttributableToOwnersOfParent
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The profit (loss) of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2023-01-01
-Paragraph B64
-Subparagraph q
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B64_q_ii&doctype=Appendix&subtype=B
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_ProfitLossOfCombinedEntity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for the purchase of interests in associates. [Refer: Associates [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2023-01-01
-Paragraph 16
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_16&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_PurchaseOfInterestsInAssociates
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for the purchase of interests in investments accounted for using the equity method. [Refer: Investments accounted for using equity method]

+ References

+ Details

Name:	ifrs-full_PurchaseOfInterestsInInvestmentsAccountedForUsingEquityMethod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2023-01-01
-Paragraph 114
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_114&doctype=Standard
-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2023-01-01
-Paragraph 113
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_113_a&doctype=Standard
-URIDate 2023-03-23

+ Details

Name:	ifrs-full_RevenueFromContractsWithCustomers
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue]

+ References

+ Details

Name:	ifrs-full_RevenueOfCombinedEntity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfLiabilitiesAxis=gfl_DeferredIncomeTaxLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfLiabilitiesAxis=gfl_LeaseObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfLiabilitiesAxis=gfl_ClosureAndPostClosureObligationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=gfl_IntangibleAssetsExcludingGoodwillMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_PropertyPlantAndEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=ifrs-full_GoodwillMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfAssetsAxis=gfl_NetWorkingCapitalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=gfl_BusinessCombinationsInCurrentFiscalYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_BusinessCombinationsAxis=gfl_SolidWasteManagementBusinessesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

BUSINESS COMBINATIONS AND INVESTMENTS - Narrative (Details) $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 CAD ($)	Dec. 31, 2022 USD ($)
Disclosure of detailed information about business combination
Additional consideration related to acquisitions from prior years	$ 31.2		$ 18.5
Net income (loss) attributable to GFL Environmental Inc.	45.4		(311.8)
Revenue	7,515.5		6,761.3
Purchase of interests		$ 19.0		$ 0.0
Share of profit from continuing operations and total comprehensive income from associates		62.1		21.1
Purchase of interests in investments accounted for using equity method		44.9		47.6
Share of profit from continuing operations and total comprehensive income from joint venture		$ 0.0		$ 0.4
Deferred income tax liabilities
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(4.7)
lease obligations
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	0.2
Closure and post-closure obligations
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(1.1)
Intangible assets
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(21.3)
Property, plant and equipment
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	31.0
Goodwill [Member]
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	0.1
Net working capital
Disclosure of detailed information about business combination
Increase (decrease) purchase price allocations relating to acquisitions	(15.4)
Business Combinations In Current Fiscal Year
Disclosure of detailed information about business combination
Net income (loss) attributable to GFL Environmental Inc.	29.8
Pro-forma revenue	7,763.6
Pro-forma net income (loss)	(234.3)
Revenue	209.1
Solid waste management businesses
Disclosure of detailed information about business combination
Goodwill expected to be deductible for tax purposes	$ 143.7		$ 279.2