The major components of other income and other operating expenses consisted of the following in millions of dollars: | | | | | | | | | | | | | 2019 | | 2018 | | 2017 | | Other income | | | | | | | | | | | Revenues from services | | $ | 348 | | $ | 347 | | $ | 288 | | Insurance premiums and fees earned** | | | 214 | | | 217 | | | 211 | | SiteOne investment gains* | | | | | | | | | 375 | | Investment income | | | 25 | | | 14 | | | 17 | | Other | | | 292 | | | 322 | | | 230 | | Total | | $ | 879 | | $ | 900 | | $ | 1,121 | | | | | | | | | | | | | Other operating expenses | | | | | | | | | | | Depreciation of equipment on operating leases | | $ | 981 | | $ | 928 | | $ | 853 | | Insurance claims and expenses** | | | 210 | | | 175 | | | 187 | | Cost of services | | | 228 | | | 211 | | | 168 | | Operating lease residual losses and impairments | | | 159 | | | 26 | | | 50 | | Pension and OPEB (benefit) cost, excluding service cost component | | | (67) | | | 15 | | | 31 | | Other | | | 67 | | | 44 | | | 59 | | Total | | $ | 1,578 | | $ | 1,399 | | $ | 1,348 | |
* See Note 5. ** Primarily related to extended warranties (see Note 23).
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