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Other Financial Data | 6 Months Ended
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Jun. 30, 2020
Other Financial Data [Abstract] |
Other Financial Data | Other Financial Data Condensed Consolidated Statements of Income Information Other Income (Expense) Other income (expense) consists of the following (in millions):
| Three Months Ended June 30, |  |  |  | Six Months Ended June 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
Extinguishment of debt | $ | (7) |  |  | $ | — |  |  | $ | (7) |  |  | $ | — |
Financial instruments | (4) |  |  | (13) |  |  | (47) |  |  | (12) |
Foreign currency remeasurement | (2) |  |  | 11 |  |  | 40 |  |  | $ | — |
Pension and other postretirement | 2 |  |  | 5 |  |  | 6 |  |  | $ | 9 |
Equity earnings | 1 |  |  | 1 |  |  | 2 |  |  | $ | 2 |
Disposal of businesses | — |  |  | 2 |  |  | 25 |  |  | $ | 7 |
Total | $ | (10) |  |  | $ | 6 |  |  | $ | 19 |  |  | $ | 6 |
Condensed Consolidated Statements of Financial Position Information 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, |  |
| 2020 (1) |  | 2019 |  | 2020 (1) |  | 2019
Balance at beginning of period | $ | 81 |  |  | $ | 64 |  |  | $ | 70 |  |  | $ | 64 |
Adoption of new accounting guidance (2) | — |  |  | — |  |  | 7 |  |  | — |
Adjusted balance at beginning of period | 81 |  |  | 64 |  |  | 77 |  |  | 64 |
Provision | 6 |  |  | 4 |  |  | 15 |  |  | 12 |
Accounts written off, net of recoveries | (3) |  |  | (3) |  |  | (11) |  |  | (11) |
Foreign currency translation and other | — |  |  | — |  |  | 3 |  |  | — |
Balance at end of period | $ | 84 |  |  | $ | 65 |  |  | $ | 84 |  |  | $ | 65 |
(1)The Company’s estimate for allowance for credit losses with respect to receivables is based on a combination of factors, including evaluation of forward-looking information, historical write-offs, aging of balances, and other qualitative and quantitative analyses. Refer to Note 2 “Accounting Principles and Practices” for further information. (2)The allowance for doubtful accounts resulted in a $7 million charge from the adoption of the new accounting standard on the measurement of credit losses on January 1, 2020. After tax impacts, this resulted in a $6 million decrease to Retained earnings. Refer to Note 2 “Accounting Principles and Practices” for further information. Other Current Assets The components of Other current assets are as follows (in millions):
As of | June 30, 2020 |  | December 31, 2019
Costs to fulfill contracts with customers (1) | $ | 193 |  |  | $ | 335 |
Prepaid expenses | 133 |  |  | 97 |
Taxes receivable | 83 |  |  | 88 |
Other (2) | 62 |  |  | 82 |
Total | $ | 471 |  |  | $ | 602 |
(1)Refer to Note 3 “Revenue from Contracts with Customers” for further information. (2)December 31, 2019 includes $4 million previously classified as “Receivables from the Divested Business”. Other Non-Current Assets The components of Other non-current assets are as follows (in millions):
As of | June 30, 2020 |  | December 31, 2019
Costs to obtain contracts with customers (1) | $ | 172 |  |  | $ | 171 |
Taxes receivable | 100 |  |  | 102 |
Leases | 101 |  |  | 100 |
Investments | 51 |  |  | 53 |
Other | 124 |  |  | 144 |
Total | $ | 548 |  |  | $ | 570 |
(1)Refer to Note 3 “Revenue from Contracts with Customers” for further information. Other Current Liabilities The components of Other current liabilities are as follows (in millions):
As of | June 30, 2020 |  | December 31, 2019
Deferred revenue (1) | $ | 294 |  |  | $ | 270 |
Taxes payable | 242 |  |  | 93 |
Leases | 216 |  |  | 210 |
Other | 567 |  |  | 513 |
Total | $ | 1,319 |  |  | $ | 1,086 |
(1)During the three and six months ended June 30, 2020, $171 million and $288 million was recognized in the Condensed Consolidated Statement of Income. During the three and six months ended June 30, 2019, $95 million and $241 million was recognized in the Consolidated Statement of Income. Other Non-Current Liabilities The components of Other non-current liabilities are as follows (in millions):
As of | June 30, 2020 |  | December 31, 2019
Taxes payable (1) | $ | 548 |  |  | $ | 525 |
Leases | 78 |  |  | 76 |
Deferred revenue | 69 |  |  | 62 |
Compensation and benefits | 47 |  |  | 49 |
Other | 158 |  |  | 165 |
Total | $ | 900 |  |  | $ | 877 |
(1)Includes $145 million for the non-current portion of the one-time mandatory transition tax on accumulated foreign earnings as of June 30, 2020 and December 31, 2019.

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