OTHER OPERATING STATEMENT DATA - OTHER OPERATING COSTS AND EXPENSES (DETAILS) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating Expenses [Abstract]
Commission expense	$ 115.8	$ 131.7	$ 130.9
Salaries and wages	226.6	212.2	216.1
Other	476.9	360.6	343.3
Total other operating costs and expenses	$ 819.3	$ 704.5	$ 690.3