Segment Reporting - Revenues by Operating Segment and Country (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue, Major Customer [Line Items]
Total revenues	$ 1,775	$ 1,639	$ 3,365	$ 3,090
Canada
Revenue, Major Customer [Line Items]
Total revenues	$ 918	$ 878	$ 1,727	$ 1,625
Canada | Revenue Benchmark | Geographic Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
United States
Revenue, Major Customer [Line Items]
Total revenues	$ 631	$ 571	$ 1,204	$ 1,092
United States | Revenue Benchmark | Geographic Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
Other
Revenue, Major Customer [Line Items]
Total revenues	$ 226	$ 190	$ 434	$ 373
TH
Revenue, Major Customer [Line Items]
Total revenues	1,016	968	1,916	1,797
BK
Revenue, Major Customer [Line Items]
Total revenues	529	473	1,013	916
PLK
Revenue, Major Customer [Line Items]
Total revenues	182	165	350	313
FHS
Revenue, Major Customer [Line Items]
Total revenues	$ 48	$ 33	$ 86	$ 64