Debt (Carrying Values Of Debt) (Details) (USD $)			0 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended			12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	May 16, 2008 1.875% Convertible Senior Notes [Member]	Dec. 31, 2013 1.875% Convertible Senior Notes [Member]	Apr. 18, 2013 1.875% Convertible Senior Notes [Member]	Dec. 31, 2012 1.875% Convertible Senior Notes [Member]	Apr. 29, 2009 4.0% Convertible Senior Notes [Member]	Dec. 31, 2013 4.0% Convertible Senior Notes [Member]	Dec. 31, 2012 4.0% Convertible Senior Notes [Member]	Jul. 24, 2009 8.25% Senior Notes [Member]	Dec. 31, 2013 8.25% Senior Notes [Member]	Dec. 31, 2012 8.25% Senior Notes [Member]	Sep. 28, 2012 5.625% Senior Notes [Member]	Dec. 31, 2013 5.625% Senior Notes [Member]	Dec. 31, 2012 5.625% Senior Notes [Member]	Jul. 13, 2012 5.75% Senior Notes [Member]	Dec. 31, 2013 5.75% Senior Notes [Member]	Dec. 31, 2012 5.75% Senior Notes [Member]	Apr. 16, 2010 4.254% 2010-1 Tower Securities [Member]	Dec. 31, 2013 4.254% 2010-1 Tower Securities [Member]	Dec. 31, 2012 4.254% 2010-1 Tower Securities [Member]	Apr. 16, 2010 5.101% 2010-2 Tower Securities [Member]	Dec. 31, 2013 5.101% 2010-2 Tower Securities [Member]	Dec. 31, 2012 5.101% 2010-2 Tower Securities [Member]	Aug. 09, 2012 2.933% 2012-1 Tower Securities [Member]	Dec. 31, 2013 2.933% 2012-1 Tower Securities [Member]	Dec. 31, 2012 2.933% 2012-1 Tower Securities [Member]	Apr. 18, 2013 2.240% 2013-1C Tower Securities [Member]	Dec. 31, 2013 2.240% 2013-1C Tower Securities [Member]	Apr. 18, 2013 3.722% 2013-2C Tower Securities [Member]	Dec. 31, 2013 3.722% 2013-2C Tower Securities [Member]	Apr. 18, 2013 3.598% 2013-1D Tower Securities [Member]	Dec. 31, 2013 3.598% 2013-1D Tower Securities [Member]	Dec. 31, 2013 Revolving Credit Facility [Member]	Dec. 31, 2012 Revolving Credit Facility [Member]	Dec. 31, 2013 2011 Term Loan B [Member]	Dec. 31, 2012 2011 Term Loan B [Member]	Dec. 31, 2013 2012-1 Term Loan A [Member]	Dec. 31, 2012 2012-1 Term Loan A [Member]	Dec. 31, 2013 2012-2 Term Loan [Member]	Dec. 31, 2012 2012-2 Term Loan [Member]	Sep. 28, 2012 2012-2 Term Loan [Member]	Dec. 31, 2013 BNDE Loan [Member]
Debt Instrument [Line Items]
Debt instrument, Principal Balance	$ 5,910,041,000	$ 5,440,073,000				$ 468,836,000		$ 499,944,000	$ 499,987,000		$ 243,750,000	$ 243,750,000		$ 500,000,000	$ 500,000,000		$ 800,000,000	$ 800,000,000	$ 680,000,000	$ 680,000,000	$ 680,000,000	$ 550,000,000	$ 550,000,000	$ 550,000,000	$ 610,000,000	$ 610,000,000	$ 610,000,000	$ 425,000,000	$ 425,000,000	$ 575,000,000	$ 575,000,000	$ 330,000,000	$ 330,000,000	$ 215,000,000	$ 100,000,000	$ 180,529,000	$ 492,500,000	$ 185,000,000	$ 195,000,000	$ 109,971,000	$ 300,000,000	$ 300,000,000	$ 5,847,000
Debt, Carrying value	5,876,607,000	5,356,103,000				457,351,000		468,394,000	430,751,000		242,387,000	242,205,000		500,000,000	500,000,000		800,000,000	800,000,000		680,000,000	680,000,000		550,000,000	550,000,000		610,000,000	610,000,000		425,000,000		575,000,000		330,000,000	215,000,000	100,000,000	180,234,000	491,518,000	185,000,000	195,000,000	109,745,000	299,278,000		5,847,000
Less: current maturities of long-term debt	(481,886,000)	(475,351,000)
Total long-term debt, net of current maturities	$ 5,394,721,000	$ 4,880,752,000
Debt instrument, maturity date			May 01, 2013	May 01, 2013			Oct. 01, 2014	Oct. 01, 2014		Aug. 15, 2019	Aug. 15, 2019		Oct. 01, 2019	Oct. 01, 2019		Jul. 15, 2020	Jul. 15, 2020		Apr. 16, 2040	Apr. 15, 2015		Apr. 15, 2042	Apr. 17, 2017		Dec. 15, 2042	Dec. 15, 2017		Apr. 01, 2043	Apr. 17, 2018	Apr. 01, 2048	Apr. 17, 2023	Apr. 01, 2043	Apr. 17, 2018	May 09, 2017		Jun. 30, 2018		May 09, 2017		Sep. 28, 2019
Debt instrument, interest rate, stated percentage			1.875%	1.875%	1.875%		4.00%	4.00%		8.25%	8.25%		5.625%	5.625%		5.75%	5.75%		4.254%	4.254%		5.101%	5.101%		2.933%	2.933%		2.24%	2.24%	3.722%	3.722%	3.598%	3.598%