Quarterly report pursuant to Section 13 or 15(d)

Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail)

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Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) (Change Related to Cash Flow Hedges, USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Change Related to Cash Flow Hedges
 
Accumulated Other Comprehensive Income (Loss) [Line Items]  
Amount expected to be reclassified into earnings $ 2.5