EQUITY (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		0 Months Ended		0 Months Ended
	Sep. 30, 2012	Sep. 30, 2012 Common Class A	Nov. 02, 2012 Common Class A Subsequent Event	Nov. 02, 2012 Common Class A Subsequent Event Maximum	Nov. 02, 2012 Common Class B Subsequent Event
Class of Stock
Cash dividends declared per common share (in dollars per share)			$ 0.72		$ 0.72
Purchase of Class A Common Stock (in shares)		3.0
Purchase of Class A Common Stock (in dollars)	$ 149.8	$ 165.4
Additional shares authorized by the Board of Directors to be repurchased				40.0