CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Net income (loss) including noncontrolling interests	$ 328.4	$ 173.9	$ 536.2	$ 337.4
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	310.5	(153.2)	392.1	113.7
Unrealized gain (loss) on derivative and non-derivative financial instruments	(68.6)	(6.9)	(77.2)	(26.6)
Reclassification of derivative (gain) loss to income	(0.4)	(0.7)	(0.4)	(3.1)
Amortization of net prior service (benefit) cost and net actuarial (gain) loss to income	6.7	7.0	8.3	14.0
Ownership share of unconsolidated subsidiaries' other comprehensive income (loss)	0.9	16.6	2.0	21.4
Total other comprehensive income (loss), net of tax	249.1	(137.2)	324.8	119.4
Comprehensive income (loss)	577.5	36.7	861.0	456.8
Comprehensive (income) loss attributable to noncontrolling interests	(6.3)	(0.4)	(13.2)	(0.8)
Comprehensive income (loss) attributable to Molson Coors Brewing Company	571.2	36.3	847.8	456.0
Consolidated [Member]
Net income (loss) including noncontrolling interests	328.4	173.9	536.2	337.4
Other comprehensive income (loss), net of tax:
Comprehensive income (loss) attributable to Molson Coors Brewing Company	$ 571.2	$ 36.3	$ 847.8	$ 456.0