Segment Information (Segment and Geographic Information) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenue, Major Customer [Line Items]
Total revenues	$ 6,424.1	$ 6,615.1	$ 18,593.0	$ 19,071.7
Operating Income	2,137.3	2,030.3	5,775.5	5,265.1
U.S.
Revenue, Major Customer [Line Items]
Total revenues	2,072.5	2,189.3	6,215.2	6,341.6
Operating Income	977.5	902.1	2,836.6	2,559.7
International Lead Markets
Revenue, Major Customer [Line Items]
Total revenues	1,881.2	1,971.6	5,452.5	5,699.3
Operating Income	754.1	739.5	2,127.2	2,011.6
High Growth Markets
Revenue, Major Customer [Line Items]
Total revenues	1,651.3	1,645.2	4,644.1	4,714.4
Operating Income	320.1	297.3	814.7	639.3
Foundational Markets and Corporate
Revenue, Major Customer [Line Items]
Total revenues	819.1	809.0	2,281.2	2,316.4
Operating Income	$ 85.6	$ 91.4	$ (3.0)	$ 54.5