Supplemental Stockholders' Equity Information Reclassifications Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense		$ (3,635)	$ (9,410)	$ (24,211)	$ (14,551)
Accumulated Defined Benefit Plans Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	[1]			(26,751)
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]			67,595
Income tax expense				26,751
Total reclassification, net of tax				(40,844)
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]			(8,808)
Amortization of actuarial loss	[3]			36,074
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 September 27, 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