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Performance-Contingent Restricted Stock Activity (Detail) - $ / shares	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Performance Contingent Return On Invested Capital Shares
Number of Shares
Number of Shares, Initial grant	0
Performance Contingent Restricted Stock
Number of Shares
Number of Shares, Balance at beginning of period	779,000	1,575,000	1,543,000
Number of Shares, Initial grant	917,000		855,000
Number of Shares, Vested	(885,000)	(314,000)	(329,000)
Number of Shares, Forfeitures	(258,000)	(35,000)	(67,000)
Number of shares, Balance at end of period	662,000	779,000	1,575,000
Weighted Average Fair Value
Weighted Average Fair Value, Balance at beginning of period	$ 21.64	$ 22.20	$ 21.53
Weighted Average Fair Value, Initial grant	20.10		21.61
Weighted Average Fair Value, Vested	22.21	21.89	19.14
Weighted Average Fair Value, Forfeitures	20.18	22.83	21.08
Weighted Average Fair Value, Balance at end of period	$ 20.16	$ 21.64	$ 22.20
Performance Contingent Restricted Stock | Performance Contingent Total Shareholders Return Shares
Number of Shares
Number of Shares, Grant reduction for not achieving the modifier	(206,000)	333,000	378,000
Number of Shares, Grant increase (reduction) for not achieving the modifier	206,000	(333,000)	(378,000)
Weighted Average Fair Value
Weighted Average Fair Value, Grant reduction for not achieving the modifier	$ 23.31	$ 24.17	$ 21.21
Performance Contingent Restricted Stock | Performance Contingent Return On Invested Capital Shares
Number of Shares
Number of Shares, Grant reduction for not achieving the modifier	(97,000)	(114,000)	(49,000)
Number of Shares, Grant increase (reduction) for not achieving the modifier	97,000	114,000	49,000
Weighted Average Fair Value
Weighted Average Fair Value, Grant reduction for not achieving the modifier	$ 19.97	$ 21.49	$ 19.14

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- Definition

Share based compensation arrangement by share based payment award equity instruments other than options canceled in period.

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Share based compensation arrangement by share based payment award equity instruments other than options canceled in period weighted average grant date fair value.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB
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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan 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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