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Other Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2016
Other Financial Data [Abstract] |
Other income (Expense) | Other income consists of the following (in millions):
Years ended December 31 | 2016 |  | 2015 |  | 2014
Equity earnings | $ | 13 |  |  | $ | 13 |  |  | $ | 12 |
Net gain on disposals of businesses | 39 |  |  | 82 |  |  | 24 |
Foreign currency remeasurement (loss) gain | (2 | ) |  | 30 |  |  | 18 |
(Loss) income on financial instruments | (14 | ) |  | (24 | ) |  | (15 | )
Other | — |  |  | (1 | ) |  | 5 |
Total | $ | 36 |  |  | $ | 100 |  |  | $ | 44 |
Schedule of Allowance for Doubtful Accounts | An analysis of the allowance for doubtful accounts is as follows (in millions):
Years ended December 31 | 2016 |  | 2015 |  | 2014
Balance at January 1 | $ | 58 |  |  | $ | 74 |  |  | $ | 90 |
Provision charged to operations | 11 |  |  | 13 |  |  | 12 |
Accounts written off, net of recoveries | (14 | ) |  | (34 | ) |  | (33 | )
Foreign currency translation | 3 |  |  | 5 |  |  | 5 |
Balance at December 31 | $ | 58 |  |  | $ | 58 |  |  | $ | 74 |
Schedule of Other Current Assets | The components of Other current assets are as follows (in millions):
As of December 31 | 2016 |  | 2015
Taxes receivable | $ | 100 |  |  | $ | 94 |
Prepaid expenses | 125 |  |  | 130 |
Deferred project costs | 87 |  |  | 92 |
Other | 39 |  |  | 13 |
Total | $ | 351 |  |  | $ | 329 |
Components of Fixed assets, net | The components of Fixed assets, net are as follows (in millions):
As of December 31 | 2016 |  | 2015
Software | $ | 948 |  |  | $ | 1,095 |
Leasehold improvements | 452 |  |  | 422 |
Computer equipment | 417 |  |  | 358 |
Furniture, fixtures and equipment | 300 |  |  | 315 |
Construction in progress | 93 |  |  | 76 |
Other | 115 |  |  | 115 |
Fixed assets, gross | 2,325 |  |  | 2,381 |
Less: Accumulated depreciation | 1,560 |  |  | 1,616 |
Fixed assets, net | $ | 765 |  |  | $ | 765 |
Schedule of Other Non-current Assets | The components of Other non-current assets are as follows (in millions):
As of December 31 | 2016 |  | 2015
Deferred project costs | $ | 183 |  |  | $ | 210 |
Investments | 119 |  |  | 135 |
Taxes receivable | 82 |  |  | 82 |
Other | 170 |  |  | 165 |
Total | $ | 554 |  |  | $ | 592 |
Schedule of Other Current Liabilities | The components of Other current liabilities are as follows (in millions):
As of December 31 | 2016 |  | 2015
Deferred revenue | $ | 393 |  |  | $ | 394 |
Taxes payable | 78 |  |  | 94 |
Other | 402 |  |  | 331 |
Total | $ | 873 |  |  | $ | 819 |
Schedule of Other Non-current Liabilities | The components of Other non-current liabilities are as follows (in millions):
As of December 31 | 2016 |  | 2015
Taxes payable | $ | 288 |  |  | $ | 223 |
Leases | 169 |  |  | 166 |
Deferred revenue | 140 |  |  | 159 |
Compensation and benefits | 56 |  |  | 59 |
Other | 191 |  |  | 162 |
Total | $ | 844 |  |  | $ | 769 |

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