Our personal injury liability activity was as follows: | Millions, | | | | | | for the Six Months Ended June 30, | 2011 | 2010 | | Beginning balance | $ | 426 | $ | 545 | | Current year accruals | | 67 | | 82 | | Changes in estimates for prior years | | (39) | | (56) | | Payments | | (53) | | (109) | | Ending balance at June 30 | $ | 401 | $ | 462 | | Current portion, ending balance at June 30 | $ | 140 | $ | 157 |
Our asbestos-related liability activity was as follows: | Millions, | | | | | | for the Six Months Ended June 30, | 2011 | 2010 | | Beginning balance | $ | 162 | $ | 174 | | Accruals | | - | 5 | - | | Payments | | (5) | | (6) | | Ending balance at June 30 | $ | 157 | $ | 168 | | Current portion, ending balance at June 30 | $ | 11 | $ | 13 |
Our environmental liability activity was as follows: | Millions, | | | | | | for the Six Months Ended June 30, | 2011 | 2010 | | Beginning balance | $ | 213 | $ | 217 | | Accruals | | 17 | | 20 | | Payments | | (22) | | (18) | | Ending balance at June 30 | $ | 208 | $ | 219 | | Current portion, ending balance at June 30 | $ | 74 | $ | 82 |
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