Supplemental Stockholders' Equity Information Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 28, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense		$ (4,256)	$ (2,440)	$ (20,576)	$ (5,141)
Accumulated Defined Benefit Plans Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	[1]			(23,147)
Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total reclassification, before tax	[2]			58,429
Income tax expense				23,147
Total reclassification, net of tax				(35,282)
Selling, General and Administrative Expenses | Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Amortization of prior service credit	[3]			(5,922)
Amortization of actuarial loss	[3]			24,022
Pension Settlement Charge | Accumulated Defined Benefit Plans Adjustment | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Pension settlement charge				$ 40,329

[1] All amounts are shown net of noncontrolling interest.

[2] There were no reclassifications relating to noncontrolling interest for the quarter ended June 28, 2015.

[3] These accumulated other comprehensive income components are included in the computation of net periodic benefit cost for pension and other retirement benefits. See Note 9 for additional information