Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Debt (Schedule Of Carrying And Principal Values Of Debt) (Details) - USD ($)						3 Months Ended
	Jul. 07, 2016	Oct. 14, 2015	Oct. 15, 2014	Apr. 18, 2013	Aug. 09, 2012	Mar. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Principal Balance						$ 8,760,000,000	$ 8,875,000,000
Fair Value						8,757,301,000	8,844,682,000
Carrying Value						8,666,174,000	8,775,583,000
Less: current maturities of long-term debt						(20,000,000)	(627,157,000)
Total long-term debt, net of current maturities						8,646,174,000	8,148,426,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Principal Balance						280,000,000	390,000,000
Fair Value						280,000,000	390,000,000
Carrying Value						$ 280,000,000	390,000,000
Debt instrument, maturity date						Feb. 05, 2020
2014 Senior Notes [Member]
Debt Instrument [Line Items]
Principal Balance						$ 750,000,000	750,000,000
Fair Value						759,375,000	763,125,000
Carrying Value						$ 737,505,000	736,992,000
Debt instrument, maturity date						Jul. 15, 2022
2016 Senior Notes [Member]
Debt Instrument [Line Items]
Principal Balance						$ 1,100,000,000	1,100,000,000
Fair Value						1,083,500,000	1,083,500,000
Carrying Value						$ 1,079,520,000	1,078,954,000
Debt instrument, maturity date						Sep. 01, 2024
2012-1C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 610,000,000	610,000,000
Fair Value						610,171,000	610,165,000
Carrying Value						$ 607,905,000	607,157,000
Debt instrument, maturity date					Dec. 09, 2042	Dec. 11, 2017
2013-1C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 425,000,000	425,000,000
Fair Value						423,827,000	423,381,000
Carrying Value						$ 423,192,000	422,768,000
Debt instrument, maturity date				Apr. 09, 2043		Apr. 10, 2018
2013-2C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 575,000,000	575,000,000
Fair Value						576,777,000	563,322,000
Carrying Value						$ 567,807,000	567,545,000
Debt instrument, maturity date				Apr. 09, 2048		Apr. 11, 2023
2013-1D Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 330,000,000	330,000,000
Fair Value						330,281,000	334,521,000
Carrying Value						$ 328,560,000	328,225,000
Debt instrument, maturity date				Apr. 09, 2043		Apr. 10, 2018
2014-1C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 920,000,000	920,000,000
Fair Value						923,183,000	922,199,000
Carrying Value						$ 912,889,000	912,219,000
Debt instrument, maturity date			Oct. 11, 2044			Oct. 08, 2019
2014-2C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 620,000,000	620,000,000
Fair Value						619,932,000	608,921,000
Carrying Value						$ 612,843,000	612,641,000
Debt instrument, maturity date			Oct. 08, 2049			Oct. 08, 2024
2015-1C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 500,000,000	500,000,000
Fair Value						502,555,000	495,145,000
Carrying Value						$ 491,828,000	491,289,000
Debt instrument, maturity date		Oct. 10, 2045				Oct. 08, 2020
2016-1C Tower Securities [Member]
Debt Instrument [Line Items]
Principal Balance						$ 700,000,000	700,000,000
Fair Value						695,877,000	688,072,000
Carrying Value						$ 691,752,000	691,322,000
Debt instrument, maturity date	Jul. 10, 2046					Jul. 09, 2021
2014 Term Loan [Member]
Debt Instrument [Line Items]
Principal Balance						$ 1,458,750,000	1,462,500,000
Fair Value						1,460,573,000	1,467,984,000
Carrying Value						$ 1,448,858,000	1,452,039,000
Debt instrument, maturity date						Mar. 24, 2021
2015 Term Loan [Member]
Debt Instrument [Line Items]
Principal Balance						$ 491,250,000	492,500,000
Fair Value						491,250,000	494,347,000
Carrying Value						$ 483,515,000	$ 484,432,000
Debt instrument, maturity date						Jun. 10, 2022