The number of stock plans approved by shareholders.

No definition available.

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- Definition

Description of the period of time over which an employee's right to exercise an award is valid and after specified date options will expire, which may be expressed in a variety of ways (for example, in years, month and year).

+ References

No definition available.

+ Details

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- Definition

The percentage by which a given share-based award (for example, number of shares granted) may increase or (decrease) based on the recipient meeting certain conditions or certain conditions occurring. For example, meeting performance conditions.

+ References

No definition available.

+ Details

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- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901

+ Details

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Business and Summary of Significant Accounting Policies Stock-Based Compensation (Details) shares in Millions	12 Months Ended
	Dec. 30, 2017 stock_plan shares	Dec. 31, 2016	Jan. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock plans approved by shareholders \| stock_plan	2
Number of Shares Available for Grant \| shares	2.6
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award Option Vesting Period	3 years
Award Expiration Period	10 years
2017 Performance Stock Award Grant [Member] \| Minimum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage	0.00%
2017 Performance Stock Award Grant [Member] \| Maximum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage	200.00%
2016 Performance Stock Award Grant [Member] \| Minimum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage		0.00%
2016 Performance Stock Award Grant [Member] \| Maximum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage		200.00%
2015 Performance Stock Award Grant [Member] \| Minimum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage			0.00%
2015 Performance Stock Award Grant [Member] \| Maximum [Member] \| Performance-Based Stock Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Awards - Shares Awarded - Increase (Decrease), Percentage			200.00%