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Additional Information on RSUs (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 28, 2012
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| Reconciliation of Restricted Stock Activity [Line Items] | ||||||
| Share-based compensation expense (in millions) | $ 109.0 | $ 116.0 | $ 94.0 | |||
| Restricted Stock Units | ||||||
| Reconciliation of Restricted Stock Activity [Line Items] | ||||||
| Share-based compensation expense (in millions) | 98.0 | 101.0 | 83.0 | |||
| Weighted average grant-date fair value (per unit) | $ 52 | [1] | $ 38 | $ 35 | ||
| Aggregate intrinsic value of converted and distributed RSUs (in millions) | $ 144 | $ 125 | $ 91 | |||
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