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LONG-TERM DEBT (Details) (USD $) In Millions, unless otherwise specified		1 Months Ended
	Dec. 31, 2013	Feb. 28, 2013 Senior Notes, 3.95% due 2013	Dec. 31, 2013 Senior Notes, 4.80% due 2013	Nov. 30, 2013 Senior Notes, 4.752% due 2044
Long-term debt
Interest rate stated percentage		3.95%	4.80%	4.752%
Principal balance repaid		$ 22.0	$ 125.0
Amount of debt issued				450.0
Long-term Debt, Fiscal Year Maturity
2014	0
2015	125.0
2016	0
2017	125.0
2018	0
Later Years	925.1
Total	$ 1,175.1