Business Segments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Identifiable assets	$ 1,968.6		$ 1,968.6		$ 1,985.0
External revenue	1,258.4	$ 1,317.6	2,444.8	$ 2,528.5
Operating income (loss)	56.9	20.0	60.6	(12.4)
YRC Freight [Member]
Segment Reporting Information [Line Items]
Identifiable assets	1,466.6		1,466.6		1,462.1
External revenue	795.2	842.1	1,532.8	1,598.9
Operating income (loss)	22.5	(0.3)	22.7	(32.8)
Regional Transportation [Member]
Segment Reporting Information [Line Items]
Identifiable assets	765.5		765.5		685.7
External revenue	463.2	475.5	912.0	929.6
Operating income (loss)	37.7	23.2	42.3	31.1
Corporate / Eliminations [Member]
Segment Reporting Information [Line Items]
Identifiable assets	(263.5)		(263.5)		$ (162.8)
External revenue	0.0	0.0	0.0	0.0
Operating income (loss)	$ (3.3)	$ (2.9)	$ (4.4)	$ (10.7)