Retirement Benefit Plans (Details Textual) (USD $)	0 Months Ended	1 Months Ended	4 Months Ended	12 Months Ended
	Jul. 26, 2010 insurance_carrier	Dec. 31, 2009	Apr. 21, 2011 payment	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 21, 2010	Feb. 12, 2009 Investment
Retirement Benefit Plans (Textual) [Abstract]
Company contributions / payments				$ 24,900,000	$ 26,400,000	$ 21,100,000
Discount rate to defined pension plans				4.85%	5.50%	5.75%
Expected long-term return on plan assets				5.00%	5.00%	0.00%
Defined benefit plans are included in the other non-current assets on the Consolidated Balance Sheets				200,000	4,400,000
Current portion of accrued pension cost, included in salaries, wages and benefits				6,700,000	6,100,000
Current portion of accrued pension cost relates to unfunded plans and represents the actuarial present value of expected payments				next 12 months
Projected benefit obligation				3,500,000,000
Accumulated benefit obligations				3,400,000,000
Fair value of plan assets				3,100,000,000
Pension accumulated benefit obligation				3,400,000,000	3,000,000,000
Percentage increase in value of pension assets due to investment performance				13.80%
Number of equity-related investments								1
Expected net realizable value of equity related investments		19,200,000
Original Value of Equity Related Investments								50,000,000
Proceeds from insurance carriers	20,000,000
Number of insurance carriers	1
Number of payments			2
Master trust received from receiver			25,800,000				25,800,000
Company common stock				6,704,891
Fair value of company common stock				320,700,000
Dividends				6,300,000	5,700,000	4,600,000
Pension [Member]
Retirement Benefit Plans (Textual) [Abstract]
Company contributions / payments				325,800,000	291,100,000
Expected discount rate to defined benefit pension plans in 2013				4.00%
Percentage point reduction in the expected rate of return				0.25%
Pension Expense increase from reduction in discount rate in 2013				5,700,000
Expected long-term return on plan assets				8.25%
Expected long-term return on plan assets in 2013				8.00%
Pension Expense increase from expected rate of return in 2013				6,500,000
Expected amortization of net actuarial loss				111,000,000
Expected amortization of prior service cost				$ 4,600,000
U.S. Plans [Member]
Retirement Benefit Plans (Textual) [Abstract]
Discount rate to defined pension plans				5.00%	5.75%	6.00%
Expected long-term return on plan assets				8.25%	8.50%	8.75%
Defined benefit pensin plan percentage of benefit obligation				86.00%
Defined benefit pension plan percentage of fair value of plan assets				87.00%