Summary of Changes in Accumulated Other Comprehensive Income (Loss), Net of Tax (Detail) (USD $) In Millions, unless otherwise specified				3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 28, 2014		Dec. 31, 2013	Jun. 28, 2014 Accumulated Defined Benefit Plans Adjustment	Jun. 29, 2013 Accumulated Defined Benefit Plans Adjustment	Jun. 28, 2014 Accumulated Defined Benefit Plans Adjustment	Jun. 29, 2013 Accumulated Defined Benefit Plans Adjustment	Jun. 28, 2014 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Jun. 29, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Jun. 28, 2014 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Jun. 29, 2013 Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges	Jun. 28, 2014 Accumulated Foreign Currency Translation Adjustment	Jun. 29, 2013 Accumulated Foreign Currency Translation Adjustment	Jun. 28, 2014 Accumulated Foreign Currency Translation Adjustment	Jun. 29, 2013 Accumulated Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (169.1)	[1]	$ (166.1)	$ (104.5)	$ (248.0)	$ (104.5)	$ (249.9)	$ (3.4)	$ 10.0	$ (5.3)	$ 2.7	$ (67.2)	$ (85.4)	$ (56.3)	$ (53.6)
Reclassification adjustments				0.1	1.8	0.1	3.7	(2.5)	(7.7)	(3.3)	(13.5)
Other comprehensive income (loss) recognized during the period								5.3	(8.4)	8.0	4.7	3.1	(14.6)	(7.8)	(46.4)
Balance at end of period	$ (169.1)	[1]	$ (166.1)	$ (104.4)	$ (246.2)	$ (104.4)	$ (246.2)	$ (0.6)	$ (6.1)	$ (0.6)	$ (6.1)	$ (64.1)	$ (100.0)	$ (64.1)	$ (100.0)

[1] Unaudited.