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Segment Information (Segment and Geographic Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Segment Reporting Information [Line Items]
Total revenues	$ 5,369.4	$ 5,754.6	$ 15,862.2	$ 17,480.2
Operating Income	2,417.7	3,079.4	6,823.1	7,408.5
United States
Segment Reporting Information [Line Items]
Total revenues	1,930.0	2,023.3	5,758.4	6,000.7
Operating Income	1,061.8	1,034.6	3,059.0	3,055.4
International Lead Markets
Segment Reporting Information [Line Items]
Total revenues	1,940.5	1,970.5	5,748.9	5,427.2
Operating Income	913.9	913.6	2,613.5	2,356.2
High Growth Markets
Segment Reporting Information [Line Items]
Total revenues	1,040.2	1,322.1	3,026.4	4,538.5
Operating Income	330.1	1,073.8	847.1	1,724.0
Foundational Markets and Corporate
Segment Reporting Information [Line Items]
Total revenues	458.7	438.7	1,328.5	1,513.8
Operating Income	$ 111.9	$ 57.4	$ 303.5	$ 272.9

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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