Debt - Debt Outstanding and Average Interest Rates (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 Commercial Paper	Dec. 31, 2012 Commercial Paper	Nov. 30, 2012 Senior Notes 3.50% due 2015	Dec. 31, 2013 Senior Notes 3.50% due 2015 Fixed Rate	Dec. 31, 2012 Senior Notes 3.50% due 2015 Fixed Rate	Sep. 29, 2012 Senior Notes 1.875 % due 2017	Dec. 31, 2013 Senior Notes 1.875 % due 2017 Fixed Rate	Dec. 31, 2012 Senior Notes 1.875 % due 2017 Fixed Rate	Nov. 30, 2012 Senior Notes 2.650% due 2019	Dec. 31, 2013 Senior Notes 2.650% due 2019 Fixed Rate	Dec. 31, 2012 Senior Notes 2.650% due 2019 Fixed Rate	Dec. 31, 2013 Senior Notes, 5.000% Due 2021	May 31, 2011 Senior Notes, 5.000% Due 2021	Dec. 31, 2013 Senior Notes, 5.000% Due 2021 Fixed Rate	Dec. 31, 2012 Senior Notes, 5.000% Due 2021 Fixed Rate	Sep. 29, 2012 Senior Notes 3.150% due 2022	Dec. 31, 2013 Senior Notes 3.150% due 2022 Fixed Rate	Dec. 31, 2012 Senior Notes 3.150% due 2022 Fixed Rate	Dec. 31, 2013 Other	Dec. 31, 2012 Other	Dec. 31, 2013 Other Maximum	Dec. 31, 2013 Other Fixed Rate Minimum	Dec. 31, 2013 Capital Lease Obligations	Dec. 31, 2012 Capital Lease Obligations	Dec. 31, 2013 Capital Lease Obligations Minimum	Dec. 31, 2013 Capital Lease Obligations Maximum
Debt Disclosure [Line Items]
Debt, average interest rate			0.522%			1.35%			1.875%			2.65%				5.00%			3.15%		0.017%				4.086%
Maturity (Year)			2017		2015	2015		2017	2017		2019	2019		2021	2021	2021		2022	2022				2030	2015			2014	2025
Total debt	$ 2,555.1	$ 2,457.4	$ 528.9	$ 424.7		$ 350.0	$ 350.0		$ 350.0	$ 350.0		$ 250.0	$ 250.0			$ 500.0	$ 500.0		$ 550.0	$ 550.0	$ 4.7	$ 8.9			$ 21.5	$ 23.8
Less: Current maturities and short-term borrowings	(2.5)	(3.1)
Long-term debt	$ 2,552.6	$ 2,454.3