Income Tax Expense Level 4 (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
INCOME TAX EXPENSE [Abstract]
Effective Income Tax Rate, Continuing Operations	24.70%	24.30%	25.40%	24.60%
Tax Adjustments, Settlements, and Unusual Provisions				$ 1.1