Quarterly report pursuant to Section 13 or 15(d)

STOCK-BASED COMPENSATION - Additional Information (Detail)

v2.4.0.6
STOCK-BASED COMPENSATION - Additional Information (Detail) (USD $)
In Millions, except Per Share data, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Management Incentive Award [Member]
Apr. 02, 2012
Management Incentive Award [Member]
Feb. 06, 2012
Management Incentive Award [Member]
Jun. 30, 2012
Long-Term Incentive Performance Award [Member]
Tranches
Jun. 30, 2011
Long-Term Incentive Performance Award [Member]
Mar. 01, 2012
Long-Term Incentive Performance Award [Member]
Jun. 30, 2012
Nonqualified Stock Options [Member]
Mar. 31, 2012
Nonqualified Stock Options [Member]
Jun. 30, 2011
Nonqualified Stock Options [Member]
Mar. 31, 2012
Employee Stock Options [Member]
Jun. 30, 2011
Employee Stock Options [Member]
Stockholders Equity Note [Line Items]                              
Percentage of the award vesting at each anniversary date of the grant         20.00%           20.00%        
Closing New York Stock Exchange price           $ 80.67 $ 76.92     $ 76.89          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period                 1.6            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value                 $ 74.25            
Percentage of target restricted performance units award that will be divided into three substantially equal tranches in the three-year award cycle from 2011 to 2013               90.00%              
Number of tranches included in award cycle               3              
Number of award tranches for each calendar year               1              
Remaining target award based upon our achievement of adjusted earnings per share for the year ending 2013 compared to a target established at the beginning of the award cycle               10.00%              
Percentage of achievement used to determine RPUs earned of the target RPUs for each tranche               100.00%              
Stock options granted                       0.2 0.2    
Grant price of stock options and RPU                       $ 76.94 $ 74.25 $ 14.88 $ 15.92
Compensation expense for share-based awards recognized in net income, pre-tax $ 133 $ 152 $ 295 $ 272                      
Award vesting period         5 years     3 years     5 years        
Period from grant date to expiration                     10 years