Quarterly report pursuant to Section 13 or 15(d)

Reconciliation of Weighted-Average Outstanding Shares Used in Calculations of basic and diluted EPS (Detail)

 v2.3.0.11
Reconciliation of Weighted-Average Outstanding Shares Used in Calculations of basic and diluted EPS (Detail)
In Millions
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Schedule of Weighted Average Number of Diluted Shares Outstanding [Line Items]        
Weighted-average shares outstanding (basic) 122.8 125.7 122.8 126.0
Effect of dilutive securities:        
Stock options and restricted stock units 1.8 1.6 1.8 1.7
Weighted-average shares outstanding (diluted) 124.6 127.3 124.6 127.7