| Accrued severance and exit costs activity |
Accrued severance and exit costs and changes in the accruals during the nine months ended December 31, 2014 and 2013 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | (in millions) | Accrued Balance at March 31, 2014 | | Expense | | Change in Estimate | | Payments | | Accretion and Other | | Accrued Balance at December 31, 2014 | Severance charges | $ | 55 |
| | $ | 21 |
| | $ | (3 | ) | | $ | (50 | ) | | $ | (1 | ) | | $ | 22 |
| Facility exit charges | 29 |
| | — |
| | — |
| | (7 | ) | | (1 | ) | | 21 |
| Total accrued liabilities | $ | 84 |
| | | | | | | | | | $ | 43 |
|
| | | | | | | | | | | | | | | | | | | | | | | | | (in millions) | Accrued Balance at March 31, 2013 | | Expense | | Change in Estimate | | Payments | | Accretion and Other | | Accrued Balance at December 31, 2013 | Severance charges | $ | 16 |
| | $ | 123 |
| | $ | (9 | ) | | $ | (88 | ) | | $ | 3 |
| | $ | 45 |
| Facility exit charges | 23 |
| | 20 |
| | — |
| | (9 | ) | | (3 | ) | | 31 |
| Total accrued liabilities | $ | 39 |
| | | | | | | | | | $ | 76 |
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