Revenue Recognition - Change In Contract Liabilities (Details) $ in Millions	3 Months Ended
Mar. 31, 2023 USD ($)
Change In Contract With Customer Liability [Roll Forward]
Beginning balance	$ 540
Recognized during period and included in the contract liability balance at the beginning of the year	(14)
Increase, excluding amounts recognized as revenue during the period	14
Impact of foreign currency translation	2
Ending balance	$ 542

Change In Contract With Customer Liability [Roll Forward]

No definition available.

Name:	qsr_ChangeInContractWithCustomerLiabilityRollForward
Namespace Prefix:	qsr_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Contract With Customer, Liability, Foreign Currency Translation

+ References

No definition available.

+ Details

Name:	qsr_ContractWithCustomerLiabilityForeignCurrencyTranslation
Namespace Prefix:	qsr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Contract with Customer, Liability, Increase Excluding Amounts Recognized As Revenue During The Period

+ References

No definition available.

+ Details

Name:	qsr_ContractwithCustomerLiabilityIncreaseExcludingAmountsRecognizedAsRevenueDuringThePeriod
Namespace Prefix:	qsr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126919976&loc=SL49130532-203044

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126920106&loc=SL49130549-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration