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Commitments And Contingencies (Tables)
9 Months Ended
Sep. 30, 2012
Commitments And Contingencies Tables [Abstract]  
Commitments And Contingencies Activity [Table Text Block]

Our personal injury liability activity was as follows:

Millions,     
for the Nine Months Ended September 30,20122011
Beginning balance$ 368$ 426
Current year accruals  89  99
Changes in estimates for prior years  (40)  (51)
Payments  (69)  (83)
Ending balance at September 30$ 348$ 391
Current portion, ending balance at September 30$ 97$ 140

Our asbestos-related liability activity was as follows:

Millions,     
for the Nine Months Ended September 30,20122011
Beginning balance$ 147$ 162
Accruals  -   -
Payments  (5)  (7)
Ending balance at September 30$ 142$ 155
Current portion, ending balance at September 30$ 9$ 11

Our environmental liability activity was as follows:

Millions,     
for the Nine Months Ended September 30,20122011
Beginning balance$ 172$ 213
Accruals  35  26
Payments  (32)  (61)
Ending balance at September 30$ 175$ 178
Current portion, ending balance at September 30$ 49$ 49