Earnings Per Share - Computations of Basic and Diluted Net Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
Apr. 04, 2015	Apr. 05, 2014
Earnings Per Share [Abstract]
Basic net earnings	$ 67,800us-gaap_NetIncomeLoss	$ 111,031us-gaap_NetIncomeLoss
Earnings allocated to participating securities, Basic	(350)	(391)
Net earnings available to common stockholders, Basic	67,450	110,640
Average shares outstanding	320,315	319,505
Basic net earnings per share	$ 0.21us-gaap_EarningsPerShareBasic	$ 0.35us-gaap_EarningsPerShareBasic
Diluted net earnings	67,800us-gaap_NetIncomeLoss	111,031us-gaap_NetIncomeLoss
Earnings allocated to participating securities, Diluted	(350)	(391)
Net earnings available to common stockholders, Diluted	$ 67,450	$ 110,640
Basic shares outstanding	320,315	319,505
Dilutive effect of stock options and other	168	263
Diluted average shares outstanding	320,483	319,768
Diluted net earnings per share	$ 0.21us-gaap_EarningsPerShareDiluted	$ 0.35us-gaap_EarningsPerShareDiluted

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the basic earnings (loss) per share or per unit calculation under the two-class method.

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Amount of earnings (loss) distributed and earnings (loss) allocated to participating securities for the diluted earnings (loss) per share or per unit calculation under the two-class method.

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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