SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - NET SALES (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales	$ 1,437.0	$ 1,462.2	$ 1,468.2	$ 1,440.9	$ 1,405.3	$ 1,419.4	$ 1,423.4	$ 1,423.3	$ 5,808.3	$ 5,671.4	$ 5,542.3
Routine Testing [Member]
Net sales									3,445.1	3,246.6	3,143.9
Genomic and Esoteric Testing [Member]
Net sales									2,020.1	2,089.8	2,089.0
Other Segments [Member]
Net sales									$ 343.1	$ 335.0	$ 309.4