Condensed Consolidated Statements of Shareholders' Equity - 6 months ended Jun. 30, 2017 - USD ($) $ in Millions	Total	Issued Common Shares	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Beginning balances, shares at Dec. 31, 2016	234,236,678	234,200,000
Beginning balances at Dec. 31, 2016	$ 3,488.6	$ 1,955.1	$ 445.7	$ (698.3)	$ 1,786.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock option exercises, shares		1,700,000
Stock option exercises	12.3	$ 12.3
Share-based compensation	24.9	$ 24.9
Issuance of shares, shares		200,000
Issuance of shares	8.5	$ 8.5
Dividends declared on common shares	(87.1)		(87.1)
Dividend equivalents declared on restricted stock units		$ 0.7	(0.7)
Distributions declared by Partnership on Partnership exchangeable units (Note 11)	(83.9)				(83.9)
Preferred share dividends	(135.0)		(135.0)
Exchange of Partnership exchangeable units for RBI common shares, shares		100,000
Exchange of Partnership exchangeable units for RBI common shares		$ 1.5		(0.5)	(1.0)
Restaurant VIE contributions (distributions)	(1.2)				(1.2)
Net income	410.1		274.7		135.4
Other comprehensive income (loss)	$ 237.0			120.7	116.3
Ending balances, shares at Jun. 30, 2017	236,247,377	236,200,000
Ending balances at Jun. 30, 2017	$ 3,874.2	$ 2,003.0	$ 497.6	$ (578.1)	$ 1,951.7