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SHAREHOLDERS' EQUITY (DETAILS 2) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended		5 Months Ended	9 Months Ended
	Jan. 15, 2016	Aug. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Jan. 15, 2016	Sep. 30, 2016	Sep. 30, 2015
August 17, 2015 ASR agreement [Member]
Treasury Shares [Line Items]
Total shares (in shares)	1,358,380.00	4,149,378		4,149,378	5,507,758	1,358,380
Total cost		$ 300,000
Average price per share (in usd per share)					$ 54.47
Common Stock [Member]
Treasury Shares [Line Items]
Total shares (in shares)			2,252,000	4,257,000		8,499,000	4,607,000
Total cost			$ 126,036	$ 246,147		$ 449,085	$ 264,076
Average price per share (in usd per share)			$ 55.98	$ 57.83		$ 52.84	$ 57.32
Common Stock [Member] | In the Open Market [Member]
Treasury Shares [Line Items]
Total shares (in shares)			2,232,000	4,248,000		8,236,000	4,264,000
Total cost			$ 124,948	$ 245,658		$ 434,948	$ 246,490
Average price per share (in usd per share)			$ 56.00	$ 57.83		$ 52.81	$ 57.80
Common Stock [Member] | In the Open Market [Member] | August 17, 2015 ASR agreement [Member]
Treasury Shares [Line Items]
Total shares (in shares)						1,358,380
Common Stock [Member] | From Employees [Member]
Treasury Shares [Line Items]
Total shares (in shares)			20,000	9,000		263,000	343,000
Total cost			$ 1,088	$ 489		$ 14,137	$ 17,586
Average price per share (in usd per share)			$ 54.13	$ 55.59		$ 53.68	$ 51.28

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Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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-Name Accounting Standards Codification
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