Stockholders' Equity Reclassifications Out of Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014		Dec. 29, 2013	Dec. 30, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	$ (86,110)		$ 73,165	$ (10,760)
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	(82,073)	[1]
Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total recognized in other comprehensive loss/(income)	61,483	[2]
Income tax expense	(24,416)
Total reclassification, net of tax	85,899
Selling, General and Administrative Expenses [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior service credit	(9,144)	[3]
Recognized actuarial loss	35,613	[3]
Discontinued Operations [Member] | Accumulated Defined Benefit Plans Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Curtailments	25,489	[4]
Settlement	$ 9,525

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

[2] There were no reclassifications relating to noncontrolling interest for the year ended December 28, 2014.

[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 and 10 for additional information

[4] See Note 10 for additional information on the effect of other postretirement benefit remeasurement.