Retirement Benefit Plans Fair Value of Pension Plan Assets (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014		Dec. 28, 2013		Dec. 29, 2012
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 114.8		$ 114.9
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	8.30%		8.30%		8.30%
Fair value of plan assets	35.5		32.3		31.7
Weighted-average asset allocations	100.00%		100.00%
Discount rate, benefit obligations	3.50%		4.00%		3.30%
U.S. Pension Benefits [Member] | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.5	[1]	32.3	[1]
U.S. Pension Benefits [Member] | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	40.00%
U.S. Pension Benefits [Member] | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	0.00%		0.00%
U.S. Pension Benefits [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	60.00%
Weighted-average asset allocations	64.00%		64.00%
U.S. Pension Benefits [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	36.00%		36.00%
Foreign Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Expected return on plan assets	3.80%		4.40%		4.10%
Fair value of plan assets	79.3		82.6		86.6
Weighted-average asset allocations	100.00%		100.00%
Discount rate, benefit obligations	2.60%		3.50%		3.30%
Foreign Pension Benefits [Member] | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	46.00%		44.00%
Foreign Pension Benefits [Member] | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	29.00%		37.00%
Foreign Pension Benefits [Member] | Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	17.00%		15.00%
Foreign Pension Benefits [Member] | Australia | Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.9	[2]	5.7	[2]
Minimum long-term net return above inflation	4.00%
Foreign Pension Benefits [Member] | Australia | Equity Securities, Australian Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	30.00%		31.00%
Foreign Pension Benefits [Member] | Australia | Equity Securities, Companies Outside of Australia [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	43.00%		40.00%
Foreign Pension Benefits [Member] | Australia | Real Estate [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	9.00%		9.00%
Foreign Pension Benefits [Member] | Australia | Government and Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	12.00%		11.00%
Foreign Pension Benefits [Member] | Australia | Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	6.00%		9.00%
Foreign Pension Benefits [Member] | Switzerland | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27.6	[3]	27.0	[3]
Foreign Pension Benefits [Member] | Germany | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5.5	[3]	6.0	[3]
Foreign Pension Benefits [Member] | Belgium | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	38.00%
Foreign Pension Benefits [Member] | Belgium | Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.8	[4]	23.6	[4]
Foreign Pension Benefits [Member] | Belgium | Equity Securities, Large-cap European Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	26.00%		30.00%
Foreign Pension Benefits [Member] | Belgium | Equity Securities, Small-cap European Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	17.00%		19.00%
Foreign Pension Benefits [Member] | Belgium | U.S. and Emerging Markets Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	8.00%		10.00%
Foreign Pension Benefits [Member] | Belgium | European and U.S. Government Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	30.00%		41.00%
Foreign Pension Benefits [Member] | Belgium | Money market funds
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	19.00%
Foreign Pension Benefits [Member] | Belgium | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	62.00%
Foreign Pension Benefits [Member] | Austria | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.5	[3]	0.5	[3]
Foreign Pension Benefits [Member] | Korea | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.1	[3]	2.9	[3]
Foreign Pension Benefits [Member] | Japan | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11.9	[5]	12.5	[5]
Weighted-average asset allocations	100.00%
Foreign Pension Benefits [Member] | Japan | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	3.00%
Weighted-average asset allocations	4.00%		40.00%
Foreign Pension Benefits [Member] | Japan | Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	40.00%
Foreign Pension Benefits [Member] | Japan | Government and Corporate Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Weighted-average asset allocations	38.00%
Foreign Pension Benefits [Member] | Japan | Other Long-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	57.00%
Foreign Pension Benefits [Member] | Japan | Short-term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	43.00%
Foreign Pension Benefits [Member] | Japan | Equity Securities, Japanese Companies [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	50.00%
Weighted-average asset allocations	51.00%		52.00%
Foreign Pension Benefits [Member] | Japan | Equity Securities, Companies Outside of Japan [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	7.00%
Weighted-average asset allocations	7.00%		8.00%
Foreign Pension Benefits [Member] | Philippines | Cash and Cash Equivalents [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	5.00%
Foreign Pension Benefits [Member] | Philippines | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.6	[6]	2.3	[6]
Target plan asset allocations	38.00%
Foreign Pension Benefits [Member] | Philippines | Money market funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			2.1	[6]
Foreign Pension Benefits [Member] | Philippines | Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocations	57.00%
Foreign Pension Benefits [Member] | Philippines | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.4	[6]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27.8		28.0
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. Pension Benefits [Member] | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[1]	0	[1]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Australia | Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Switzerland | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Germany | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Belgium | Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	22.8	[4]	23.6	[4]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Austria | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Korea | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Japan | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[5]	0	[5]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Philippines | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1.6	[6]	2.3	[6]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Philippines | Money market funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			2.1	[6]
Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign Pension Benefits [Member] | Philippines | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.4	[6]
Significant Other Observable Inputs (Level 2) | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	50.3		50.5
Significant Other Observable Inputs (Level 2) | U.S. Pension Benefits [Member] | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	35.5	[1]	32.3	[1]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Australia | Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	2.9	[2]	5.7	[2]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Switzerland | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Germany | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Belgium | Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	0	[4]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Austria | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Korea | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[3]	0	[3]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Japan | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	11.9	[5]	12.5	[5]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Philippines | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[6]	0	[6]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Philippines | Money market funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[6]
Significant Other Observable Inputs (Level 2) | Foreign Pension Benefits [Member] | Philippines | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[6]
Significant Unobservable Inputs (Level 3) [Member] | Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	36.7		36.4		44.4
Significant Unobservable Inputs (Level 3) [Member] | U.S. Pension Benefits [Member] | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[1]	0	[1]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Australia | Investment Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[2]	0	[2]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Switzerland | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	27.6	[3]	27.0	[3]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Germany | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5.5	[3]	6.0	[3]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Belgium | Mutual Fund [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[4]	0	[4]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Austria | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.5	[3]	0.5	[3]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Korea | Guaranteed Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.1	[3]	2.9	[3]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Japan | Common/Collective Trust [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[5]	0	[5]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Philippines | Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	[6]	0	[6]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Philippines | Money market funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets			0	[6]
Significant Unobservable Inputs (Level 3) [Member] | Foreign Pension Benefits [Member] | Philippines | Equity Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	[6]

[1] The investment strategy of the U.S. pension plan for each period presented was to achieve a return greater than or equal to the return that would have been earned by a portfolio invested approximately 60 percent in equity securities and 40 percent in fixed income securities. As of each of the years ended December 27, 2014 and December 28, 2013, the common trusts held 64 percent of its assets in equity securities and 36 percent in fixed income securities in both years. The percentage of funds invested in equity securities at the end of 2014 and 2013, included: 33 percent in large U.S. stocks, 21 percent small U.S. stocks, and 10 percent in international stocks. The common trusts are comprised of shares or units in commingled funds that are not publicly traded. The underlying assets in these funds (equity securities and fixed income securities) are valued using quoted market prices.

[2] For each period presented, the strategy of this fund is to achieve a long-term net return of at least 4 percent above inflation based on the Australian consumer price index over a rolling five-year period. The investment strategy is to invest mainly in equities and property, which are expected to earn relatively higher returns over the long term. The fair value of the fund is determined using the net asset value per share using quoted market prices or other observable inputs in active markets. As of December 27, 2014 and December 28, 2013, the percentage of funds held in investments included: Australian equities of 30 percent and 31 percent, government and corporate bonds of 12 percent and 11 percent, cash of 6 percent and 9 percent, other equities of listed companies outside of Australia of 43 percent and 40 percent, respectively, and real estate of 9 percent in each year.

[3] The strategy of the Company's plans in Austria, Germany, Korea and Switzerland is to seek to ensure the future benefit payments of their participants and manage market risk. This is achieved by funding the pension obligations through guaranteed insurance contracts. The plan assets operate similar to investment contracts whereby the interest rate, as well as the surrender value, is guaranteed. The fair value is determined as the contract value, using a guaranteed rate of return which will increase if the market performance exceeds that return.

[4] The strategy of the Belgian plan in each period presented is to seek to achieve a return greater than or equal to the return that would have been earned by a portfolio invested approximately 62 percent in equity securities and 38 percent in fixed income securities. The fair value of the fund is calculated using the net asset value per share as determined by the quoted market prices of the underlying investments. As of December 27, 2014 and December 28, 2013, the percentage of funds held in various asset classes included: large-cap equities of European companies of 26 percent and 30 percent, small-cap equities of European companies of 17 percent and 19 percent, equities outside of Europe, mainly in the U.S. and emerging markets, of 8 percent and 10 percent, and bonds, primarily from European and U.S. governments, of 30 percent and 41 percent, respectively. The remaining amount in 2014 included 19 percent in a money market fund.

[5] The Company's strategy for each period presented is to invest approximately 57 percent of assets to benefit from the higher expected returns from long-term investments in equities and to invest 43 percent of assets in short-term low investment risk instruments to fund near term benefits payments. The target allocation for plan assets to implement this strategy is 50 percent equities in Japanese listed securities, 7 percent in equities outside of Japan, 3 percent in cash and other short-term investments and 40 percent in domestic Japanese bonds. This strategy has been achieved through a collective trust that held 100 percent of total funded assets as of December 27, 2014 and December 28, 2013. As of the end of 2014 and 2013, the allocation of funds within the common collective trust included: 51 percent and 52 percent in Japanese equities, 7 percent and 8 percent in equities of companies based outside of Japan, and 4 percent and 40 percent in cash and other short term investments, respectively. In 2014, the remaining 38 percent of funds were invested in Japanese bonds. The fair value of the collective trust is determined by the market value of the underlying shares, which are traded in active markets.

[6] In both years, the investment strategy in the Philippines was to achieve an appropriate balance between risk and return, from a diversified portfolio of Philippine peso denominated bonds and equities. The target asset class allocations is 57 percent in equity securities, 38 percent fixed income securities and 5 percent in cash and deposits. The fixed income securities at year end included assets valued using a weighted average of completed deals on similarly termed government securities, as well as balances invested in short term deposit accounts. The equity index fund was valued at the closing price of the active market in which it was traded.