Taxes on Income (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 26, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Other Tax Carryforward [Line Items]
Increase in income tax expense for repatriation taxes		$ 0	$ 98,900,000	$ 0
Repatriation of foreign earnings	1,100,000,000
Utilization of foreign tax credits		25,100,000	28,500,000	0
U.S. foreign tax credit carryforwards		37,900,000	35,300,000
Tax credit carryforward valuation allowance		(27,100,000)	(29,100,000)
Unremitted earnings of foreign operations		1,300,000,000
Unrecognized tax benefits that, if recognized, would affect the effective tax rate		42,900,000	43,100,000	43,700,000
Benefits of interest, net of penalties included in income tax expense		6,800,000	400,000	500,000
Accrued interest and penalties on income taxes		(3,300,000)	3,000,000
Change in unrecognized tax benefits is reasonably possible, amount		33,000,000
Federal [Member]
Other Tax Carryforward [Line Items]
Operating loss carryforwards		5,300,000
U.S. foreign tax credit carryforwards		37,900,000
Tax credit carryforward valuation allowance		27,100,000
State [Member]
Other Tax Carryforward [Line Items]
Tax credit carryforwards		42,600,000
Minimum [Member]
Other Tax Carryforward [Line Items]
Unrecognized deferred tax liability on unremitted foreign earnings		125,000,000
Maximum [Member]
Other Tax Carryforward [Line Items]
Unrecognized deferred tax liability on unremitted foreign earnings		$ 160,000,000