SENIOR NOTES PAYABLE AND OTHER DEBT (Details 4) (Senior Notes, USD $) In Millions, unless otherwise specified	1 Months Ended
Apr. 28, 2014 1.250% Senior Notes due 2017	Apr. 28, 2014 3.750% Senior Notes due 2024	Sep. 30, 2014 3.00% Senior Notes, Series A due 2019	Sep. 30, 2014 4.125% Senior Notes, Series B due 2024
Debt instruments
Debt instrument, face amount	$ 300.0	$ 400.0	$ 400.0	$ 250.0
Interest rate (as a percent)	1.25%	3.75%	3.00%	4.125%
Public offering price as a percent of par	99.815%	99.304%	99.713%	99.601%
Proceeds from issuance of senior long-term debt	$ 299.4	$ 397.2	$ 398.9	$ 249.0

Face (par) amount of debt instrument at time of issuance.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

The cash inflow from a borrowing with the highest claim on the assets of the entity in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle, if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

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Public offering price as a percent of par.

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