Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	Sep. 28, 2012
Marketable equity securities [Member]
Assets measured at fair value on recurring basis
Marketable equity securities	$ 4.1
Money Market Funds [Member]
Assets measured at fair value on recurring basis
Money market fund	31.0
Deferred Compensation Plan Stock Fund [Member]
Assets measured at fair value on recurring basis
Stock fund	41.2
Equity Securities [Member]
Assets measured at fair value on recurring basis
Equity security	22.3
Pension Plan Stock Funds [Member]
Assets measured at fair value on recurring basis
Stock funds	41.5
Pension Plan Government Securities [Member]
Assets measured at fair value on recurring basis
Government securities	32.5
Deferred Compensation Plan [Member]
Liabilities measured at fair value on recurring basis
Deferred compensation plans	98.1
Foreign currency forward contracts [Member]
Assets measured at fair value on recurring basis
Foreign currency forward contracts, assets	0.7
Liabilities measured at fair value on recurring basis
Foreign currency forward contract, liabilities	0.4
Fair Value, Inputs, Level 1 [Member] | Marketable equity securities [Member]
Assets measured at fair value on recurring basis
Marketable equity securities	4.1
Fair Value, Inputs, Level 1 [Member] | Money Market Funds [Member]
Assets measured at fair value on recurring basis
Money market fund	31.0
Fair Value, Inputs, Level 1 [Member] | Deferred Compensation Plan Stock Fund [Member]
Assets measured at fair value on recurring basis
Stock fund	41.2
Fair Value, Inputs, Level 1 [Member] | Equity Securities [Member]
Assets measured at fair value on recurring basis
Equity security	22.3
Fair Value, Inputs, Level 1 [Member] | Pension Plan Stock Funds [Member]
Assets measured at fair value on recurring basis
Stock funds	41.5
Fair Value, Inputs, Level 1 [Member] | Pension Plan Government Securities [Member]
Assets measured at fair value on recurring basis
Government securities	32.5
Fair Value, Inputs, Level 1 [Member] | Deferred Compensation Plan [Member]
Liabilities measured at fair value on recurring basis
Deferred compensation plans	98.1
Fair Value, Inputs, Level 1 [Member] | Foreign currency forward contracts [Member]
Assets measured at fair value on recurring basis
Foreign currency forward contracts, assets	0
Liabilities measured at fair value on recurring basis
Foreign currency forward contract, liabilities	0
Fair Value, Inputs, Level 2 [Member] | Marketable equity securities [Member]
Assets measured at fair value on recurring basis
Marketable equity securities	0
Fair Value, Inputs, Level 2 [Member] | Money Market Funds [Member]
Assets measured at fair value on recurring basis
Money market fund	0
Fair Value, Inputs, Level 2 [Member] | Deferred Compensation Plan Stock Fund [Member]
Assets measured at fair value on recurring basis
Stock fund	0
Fair Value, Inputs, Level 2 [Member] | Equity Securities [Member]
Assets measured at fair value on recurring basis
Equity security	0
Fair Value, Inputs, Level 2 [Member] | Pension Plan Stock Funds [Member]
Assets measured at fair value on recurring basis
Stock funds	0
Fair Value, Inputs, Level 2 [Member] | Pension Plan Government Securities [Member]
Assets measured at fair value on recurring basis
Government securities	0
Fair Value, Inputs, Level 2 [Member] | Deferred Compensation Plan [Member]
Liabilities measured at fair value on recurring basis
Deferred compensation plans	0
Fair Value, Inputs, Level 2 [Member] | Foreign currency forward contracts [Member]
Assets measured at fair value on recurring basis
Foreign currency forward contracts, assets	0.7
Liabilities measured at fair value on recurring basis
Foreign currency forward contract, liabilities	0.4
Fair Value, Inputs, Level 3 [Member] | Marketable equity securities [Member]
Assets measured at fair value on recurring basis
Marketable equity securities	0
Fair Value, Inputs, Level 3 [Member] | Money Market Funds [Member]
Assets measured at fair value on recurring basis
Money market fund	0
Fair Value, Inputs, Level 3 [Member] | Deferred Compensation Plan Stock Fund [Member]
Assets measured at fair value on recurring basis
Stock fund	0
Fair Value, Inputs, Level 3 [Member] | Equity Securities [Member]
Assets measured at fair value on recurring basis
Equity security	0
Fair Value, Inputs, Level 3 [Member] | Pension Plan Stock Funds [Member]
Assets measured at fair value on recurring basis
Stock funds	0
Fair Value, Inputs, Level 3 [Member] | Pension Plan Government Securities [Member]
Assets measured at fair value on recurring basis
Government securities	0
Fair Value, Inputs, Level 3 [Member] | Deferred Compensation Plan [Member]
Liabilities measured at fair value on recurring basis
Deferred compensation plans	0
Fair Value, Inputs, Level 3 [Member] | Foreign currency forward contracts [Member]
Assets measured at fair value on recurring basis
Foreign currency forward contracts, assets	0
Liabilities measured at fair value on recurring basis
Foreign currency forward contract, liabilities	$ 0