Stock-Based Compensation (Summary and Stock Options) (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Net stock-based expense (income)	$ 6.3	$ 2.9	$ 12.2	$ 6.0
Cash received from option exercises	14.5	11.0	26.3	13.0
Tax benefit realized from exercise of share based payment	1.1	0.3	3.3	0.6
Stock Options [Member]
Weighted average contractual term (in years)			10
Shares granted	0
Weighted-average grant date fair value			$ 15.80	$ 10.90
Aggregate Intrinsic Value exercised	2.3	0.8	8.0	1.6
Fair value of stock options vested			4.5	4.6
Cost expected to be recognized over weighted-average period			2.2
Stock Options [Member] \| 2001 Incentive Stock and Awards Plan [Member]
Unrecognized compensation cost related to non-vested award	$ 11.7		$ 11.7
2011 Incentive Stock and Awards Plan [Member]
Number of shares available for future grants	5,000,000		5,000,000

Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Contractual Term

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Number of shares of stock (or other type of equity) granted during the period as a result of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements.

+ References

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph A240
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-Paragraph 2
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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

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- Definition

Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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-Publisher FASB
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The total fair value of equity-based awards for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

+ References

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph A240
-Subparagraph c(2)
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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph A240
-Subparagraph c(1)
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