v2.4.0.6
Incentive Program (Tables)
12 Months Ended
Dec. 31, 2011
Incentive Program [Abstract]  
Summary Of Restricted Stock And Units Outstanding
    2011  
Restricted stock and units outstanding   Shares     

Weighted Average

Grant-Date

Fair Value per Share

 
    (thousands)         

Issued and outstanding at January 1

    47,306       $ 69.74   

2010 award issued in 2011

    10,639       $ 68.74   

Vested

    (10,628    $ 64.37   

Forfeited

    (536    $ 67.35   

Issued and outstanding at December 31

    46,781       $ 70.76   
Grant Value Of Restricted Stock And Units
Value of restricted stock and units   2011        2010        2009  

Grant price

  $ 79.52         $ 66.07         $ 75.40   
Value at date of grant:      
    (millions of dollars)  

Restricted stock and units settled in stock

  $ 766         $ 672         $ 711   

Merger-related granted and converted XTO awards

              250             

Units settled in cash

    72           60           53   

Total value

  $ 838         $ 982         $ 764   
Summary Of Stock Options Outstanding
    2011         
Stock options   Shares     

Avg. Exercise

Price

      

Weighted Average

Remaining Contractual Term

    (thousands)                

Outstanding at January 1

    29,509       $ 44.65        

Exercised

    (23,880    $ 38.81        

Forfeited

    (80    $ 48.01        

Outstanding at December 31

    5,549       $ 69.76         3.0 Years

Exercisable at December 31

    5,323       $ 68.65         3.0 Years