Long-Term Debt (Senior Credit Agreement) (Narrative) (Details) (USD $)	12 Months Ended								12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Jan. 31, 2012 U.S. Term Loans [Member]	Dec. 31, 2011 U.S. Term Loans [Member]	Nov. 30, 2011 U.S. Term Loans [Member]	Dec. 31, 2011 U. S. Revolving Credit Facility [Member]	Dec. 31, 2011 Alternative Currency Revolving Facility [Member]	Dec. 31, 2011 Potential Incremental Commitments Under Revolving Credit Facility [Member]	Dec. 31, 2011 Minimum [Member]	Dec. 31, 2011 Base Rate [Member] U.S. Term Loans [Member]
Debt Instrument [Line Items]
Long term debt	$ 5,168,226,000	$ 5,268,185,000	$ 500,000,000	$ 500,000,000	$ 1,250,000,000			$ 750,000,000
Revolving facility, maximum borrowing capacity	1,250,000,000					750,000,000	500,000,000
Subfacility for letters of credit	125,000,000
Subfacility for swingline borrowings	100,000,000
Percentage of limited outstanding voting stock of foreign holding companies and subsidiaries	65.00%
Percentage added to basis	2.00%									1.00%
Facility fee percentage	0.40%								0.30%
Quarterly repayments in 2012 and 2013	23,400,000			23,400,000
Quarterly repayments in 2014				31,300,000
Quarterly repayments in 2015				46,900,000
Quarterly repayments in 2016				$ 187,500,000
Consolidated leverage ratio	3.25