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Income Taxes (Effective Income Tax Reconciliation) (Details)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Disclosure [Abstract]      
U.S. federal corporate tax rate 35.00% 35.00% 35.00%
Tax on international operations less than U.S. tax rate (5.90%) (8.20%) (11.00%)
Non-benefited losses 0.60% 0.00% 1.40%
Reversal of prior valuation allowance 0.00% (0.10%) (0.20%)
Reversal of reserves for unrecognized tax benefits (0.20%) (0.80%) (3.00%)
U.S. tax on international earnings, net of foreign tax credits (1.20%) (1.50%) (2.20%)
State income taxes, net of federal tax effect (1.00%) 0.70% (1.60%)
General business credits and Section 199 Deduction (1.50%) (2.40%) (1.50%)
Non-deductible debt premium 2.00% 0.00% 0.00%
Other 2.40% 2.60% 1.40%
Effective tax rate 30.20% 25.30% 18.30%