Summary of Future Commitments for Operating Lease Obligations, Material Purchase Commitments, Outsourcing and Other Arrangements (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011
Schedule of Operating Leases [Line Items]
Total	$ 485.8
2012	156.7
2013	102.1
2014	71.3
2015	47.7
2016	31.6
Thereafter	76.4
Operating lease obligations
Schedule of Operating Leases [Line Items]
Total	423.9
2012	123.0
2013	89.6
2014	64.5
2015	44.5
2016	29.7
Thereafter	72.6
Marketing and other commitments
Schedule of Operating Leases [Line Items]
Total	61.9
2012	33.7
2013	12.5
2014	6.8
2015	3.2
2016	1.9
Thereafter	$ 3.8