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Other Financial Data (Tables) | 6 Months Ended
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Jun. 30, 2017
Other Financial Data [Abstract] |
Schedule of Other Income (Expense) | Other income (expense) consists of the following (in millions):
| Three months ended June 30 |  | Six months ended June 30
| 2017 |  | 2016 |  | 2017 |  | 2016
Foreign currency remeasurement gain (loss) | $ | (2 | ) |  | $ | — |  |  | $ | (12 | ) |  | $ | (17 | )
Gain (loss) on disposal of business | — |  |  | 6 |  |  | (2 | ) |  | 41 |
Equity earnings | 3 |  |  | 1 |  |  | 9 |  |  | 3 |
Loss on financial instruments | (6 | ) |  | (8 | ) |  | (10 | ) |  | (10 | )
Total | $ | (5 | ) |  | $ | (1 | ) |  | $ | (15 | ) |  | $ | 17 |
Schedule of Allowance for Doubtful Accounts | An analysis of the allowance for doubtful accounts is as follows (in millions):
| Three months ended June 30 |  | Six months ended June 30
| 2017 |  | 2016 |  | 2017 |  | 2016
Balance at beginning of period | $ | 61 |  |  | $ | 62 |  |  | $ | 56 |  |  | $ | 58 |
Provision charged to Other general expenses | 5 |  |  | 6 |  |  | 11 |  |  | 11 |
Accounts written off, net of recoveries | (7 | ) |  | (4 | ) |  | (10 | ) |  | (6 | )
Foreign currency translation | — |  |  | — |  |  | 2 |  |  | 1 |
Balance at end of period | $ | 59 |  |  | $ | 64 |  |  | $ | 59 |  |  | $ | 64 |
Schedule of Other Current Assets | The components of Other current assets are as follows (in millions):
As of | June 30, 2017 |  | December 31, 2016
Taxes receivable | $ | 152 |  |  | $ | 100 |
Prepaid expenses | 143 |  |  | 102 |
Receivables from the Divested Business (1) | 78 |  |  | — |
Other | 26 |  |  | 45 |
Total | $ | 399 |  |  | $ | 247 |
(1) | Refer to Note 3 “Discontinued Operations” for additional information.
Schedule of Other Non-current Assets | The components of Other non-current assets are as follows (in millions):
As of | June 30, 2017 |  | December 31, 2016
Investments | $ | 122 |  |  | $ | 119 |
Taxes receivable | 88 |  |  | 82 |
Other | 158 |  |  | 159 |
Total | $ | 368 |  |  | $ | 360 |
Schedule of Other Current Liabilities | The components of Other current liabilities are as follows (in millions):
As of | June 30, 2017 |  | December 31, 2016
Deferred revenue | $ | 377 |  |  | $ | 199 |
Taxes payable (1) | 1,254 |  |  | 77 |
Other | 447 |  |  | 380 |
Total | $ | 2,078 |  |  | $ | 656 |
(1) | Includes accrued taxes payable related to the gain on sale of the Divested Business.
Schedule of Other Non-current Liabilities | The components of Other non-current liabilities are as follows (in millions):
As of | June 30, 2017 |  | December 31, 2016
Taxes payable | $ | 326 |  |  | $ | 288 |
Deferred revenue | 46 |  |  | 49 |
Leases | 140 |  |  | 136 |
Compensation and benefits | 59 |  |  | 56 |
Other | 287 |  |  | 190 |
Total | $ | 858 |  |  | $ | 719 |

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