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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended		3 Months Ended				6 Months Ended
	Jul. 07, 2026	Aug. 06, 2026	Jul. 31, 2026	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2026
Subsequent Event [Line Items]
Common stock, dividends declared (in usd per share)				$ 0.65	$ 0.65	$ 0.62	$ 0.62
Remaining authorized repurchase amount				$ 829				$ 829
Issued Common Shares
Subsequent Event [Line Items]
Repurchase of common shares (in shares)				1,821,167				2,284,609
Repurchase of common shares				$ 137				$ 171
Subsequent Event
Subsequent Event [Line Items]
Common stock, dividends paid (in usd per share)	$ 0.65
Common stock, dividends declared (in usd per share)		$ 0.65
Remaining authorized repurchase amount			$ 794
Subsequent Event \| Issued Common Shares
Subsequent Event [Line Items]
Repurchase of common shares (in shares)			463,385
Repurchase of common shares			$ 35
Subsequent Event \| Partnerships Exchangeable Units \| Restaurant Brands International Limited Partnership
Subsequent Event [Line Items]
Distribution in respect of each Partnership exchangeable unit (in usd per share)	$ 0.65	$ 0.65