Consolidated Statements of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Income Statement [Abstract]
Revenues	$ 913.1		$ 982.4		$ 2,806.2		$ 2,902.8
Costs and expenses:
Cost of revenues	770.9		783.2		2,321.1		2,368.1
Selling, general and administrative expenses	135.5		141.2		416.0		418.0
Total costs and expenses	906.4		924.4		2,737.1		2,786.1
Other operating income (expense)	40.8		1.2		(83.4)		(7.4)
Operating profit	47.5		59.2		(14.3)		109.3
Interest expense	(6.6)		(6.5)		(18.3)		(18.3)
Interest and other income (expense)	0.4		0.3		0.7		1.2
Income from continuing operations before tax	41.3		53.0		(31.9)		92.2
Provision (benefit) for income taxes	23.2		15.0		36.9		31.1
Income (loss) from continuing operations	18.1		38.0		(68.8)		61.1
Income (loss) from discontinued operations, net of tax	1.5		(6.0)		0.7		(30.0)
Net income (loss)	19.6		32.0		(68.1)		31.1
Less net income attributable to noncontrolling interests	(0.6)		8.2		(31.4)		15.2
Net income (loss) attributable to Brink's	20.2		23.8		(36.7)		15.9
Amounts attributable to Brink's:
Continuing operations	18.7		29.8		(37.4)		45.9
Discontinued operations	1.5		(6.0)		0.7		(30.0)
Net income (loss) attributable to Brink's	$ 20.2		$ 23.8		$ (36.7)		$ 15.9
Basic:
Continuing operations	$ 0.38	[1]	$ 0.61	[1]	$ (0.76)	[1]	$ 0.94	[1]
Discontinued operations	$ 0.03	[1]	$ (0.12)	[1]	$ 0.01	[1]	$ (0.62)	[1]
Net income (loss)	$ 0.41	[1]	$ 0.49	[1]	$ (0.75)	[1]	$ 0.33	[1]
Diluted:
Continuing operations	$ 0.38	[1]	$ 0.61	[1]	$ (0.76)	[1]	$ 0.94	[1]
Discontinued operations	$ 0.03	[1]	$ (0.12)	[1]	$ 0.01	[1]	$ (0.61)	[1]
Net income (loss)	$ 0.41	[1]	$ 0.49	[1]	$ (0.75)	[1]	$ 0.32	[1]
Weighted-average shares
Basic	49.1	[1]	48.7	[1]	49.0	[1]	48.6	[1]
Diluted	49.4	[1]	49.0	[1]	49.0	[1]	48.9	[1]
Cash dividends paid per common share	$ 0.1	[1]	$ 0.1	[1]	$ 0.3	[1]	$ 0.3	[1]

[1] Amounts may not add due to rounding