Pension Plans and Postretirement Benefits (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 01, 2012	Jan. 02, 2011
Changes in plan assets
Employer contribution - defined benefit plan	$ 69.0	$ 37.0
Pension Benefits - U.S. Plans [Member]
Changes in plan assets
Fair value of plan assets - beginning of year	657.6	584.5
Actual return on plan assets	(8.2)	70.8
Employer contribution - defined benefit plan	69.0	37.0
Employer contribution - other benefit plan	1.1	1.1
Benefits paid	(40.6)	(35.8)
Fair value of net plan assets - end of year	678.9	657.6
Percentage of year-end market value by asset class
Equity instruments	63.00%	67.00%
Fixed income instruments	33.00%	30.00%
Other	4.00%	3.00%
Total	100.00%	100.00%
Pension Benefits-Non U.S. Plans [Member]
Changes in plan assets
Fair value of plan assets - beginning of year	29.7	0
Business combination		20.5
Actual return on plan assets	(1.1)	2.0
Employer contribution - defined benefit plan	0.3	8.1
Foreign currency changes	0.1	(0.1)
Benefits paid	(2.2)	(0.8)
Fair value of net plan assets - end of year	$ 26.8	$ 29.7
Percentage of year-end market value by asset class
Equity instruments	61.00%	59.00%
Fixed income instruments	39.00%	41.00%
Other	0.00%	0.00%
Total	100.00%	100.00%

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Other benefit plan contributions by employer.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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The amount of increase in the plan assets attributed to a business combination.

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The increase in the fair value of plan assets from contributions made by the employer.

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The percentage of the fair value of debt securities to the fair value of total plan assets held as of the measurement date.

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The percentage of the fair value of equity securities to the fair value of total plan assets held as of the measurement date.

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Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.

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The percentage of the fair value of investments other than debt securities, equity securities, and real estate to the fair value of total plan assets held as of the measurement date.

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