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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2013
Schedule II - Valuation and Qualifying Accounts | Schedule II — Valuation and Qualifying Accounts Pentair Ltd. and Subsidiaries
In millions | Beginning balance | Additions charged to costs and expenses | Deductions (1) | Other changes (2) | Ending balance
Allowances for doubtful accounts
Year ended December 31, 2013 | $ | 14.0 |  | $ | 51.8 |  | $ | 2.4 |  | $ | (2.6 | ) | $ | 60.8 |
Year ended December 31, 2012 | $ | 16.0 |  | $ | 1.6 |  | $ | 4.0 |  | $ | 0.4 |  | $ | 14.0 |
Year ended December 31, 2011 | $ | 17.1 |  | $ | 4.4 |  | $ | 4.7 |  | $ | (0.8 | ) | $ | 16.0 |
(1) | Uncollectible accounts written off, net of recoveries
(2) | Result of foreign currency effects

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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