The following table summarizes the Company's restructuring reserves activity for the years ended December 31, 2013, 2012 and 2011:
(Millions) | Severance(a) | Other(b) | Total | |||||||
Liability balance as of December 31, 2010 | $ | 199 | $ | 16 | $ | 215 | ||||
Restructuring charges, net of $27 in revisions(c) | 96 | 23 | 119 | |||||||
Payments | (121) | (8) | (129) | |||||||
Other non-cash(d) | (4) | (1) | (5) | |||||||
Liability balance as of December 31, 2011 | 170 | 30 | 200 | |||||||
Restructuring charges, net of $16 in revisions(c) | 366 | 37 | 403 | |||||||
Payments | (124) | (9) | (133) | |||||||
Liability balance as of December 31, 2012 | 412 | 58 | 470 | |||||||
Restructuring charges, $4 in revisions(c) | (7) | 3 | (4) | |||||||
Payments | (206) | (23) | (229) | |||||||
Other non-cash(d) | (3) | (1) | (4) | |||||||
Liability balance as of December 31, 2013(e) | $ | 196 | $ | 37 | $ | 233 |