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Share-Based Compensation And Other Compensation Arrangements (Narrative) (Details) (USD $)
0 Months Ended 1 Months Ended 12 Months Ended
Feb. 25, 2013
Feb. 27, 2012
Feb. 28, 2011
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Feb. 22, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Aggregate number of shares of stock available for issuance       80,000,000      
Number of options granted 6,591,968 6,114,922 5,426,910        
Stock options vesting percentage after the first year 34.00% 34.00%         34.00%
Stock options vesting percentage after the second year 33.00% 33.00%         33.00%
Stock options vesting percentage after the third year 33.00% 33.00%         33.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value       $ 546,000,000 $ 89,000,000 $ 67,000,000  
Cash received from options exercised       1,097,000,000 120,000,000 114,000,000  
Tax benefit realized from exercise of stock options       190,000,000 29,000,000 23,000,000  
Grant date fair value of stock options vested       89,000,000 83,000,000 92,000,000  
Initial Value Of Performance Awards (per unit)       $ 100      
Deferred compensation       238,000,000 75,000,000 59,000,000  
Deferred compensation liability which is being marked to market       1,258,000,000 1,104,000,000    
Minimum [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Amount payable at end of three-year performance period (per unit)       $ 0      
Maximum [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Amount payable at end of three-year performance period (per unit)       $ 200      
Stock Options [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Share-based payment award options expiration term (in years) 10 years 10 years 10 years        
Award vesting period (in years) 3 years 3 years 3 years        
Total unrecognized compensation cost       95,000,000      
Weighted average period (in years) over which the unrecognized compensation cost related to stock options is expected to be recognized       1 year 10 months      
Restricted Stock Units (RSUs) [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Aggregate number of shares of stock available for issuance       16,000,000      
Award vesting period (in years)       3 years      
Restricted stock units (RSUs) granted 1,375,414 1,369,810 1,364,440        
Restricted stock units (RSUs) granted (fair value per share) $ 75.97 $ 75.40 $ 71.44        
Performance Awards [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years) 3 years            
Performance Awards [Member] | 2012 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)   3 years          
Performance Awards [Member] | 2011 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)     3 years        
Performance Awards [Member] | Minimum [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       0      
Performance Awards [Member] | Minimum [Member] | 2012 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       0      
Performance Awards [Member] | Minimum [Member] | 2011 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       0      
Performance Awards [Member] | Maximum [Member] | 2013 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       275,000,000      
Performance Awards [Member] | Maximum [Member] | 2012 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       259,000,000      
Performance Awards [Member] | Maximum [Member] | 2011 Performance Award [Member]
             
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Performance Awards payout       $ 248,000,000