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Other Financial Data | 6 Months Ended
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Jun. 30, 2022
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,
| 2022 |  | 2021 |  | 2022 |  | 2021
Foreign currency remeasurement | $ | 27 |  |  | $ | (13) |  |  | $ | (1) |  |  | $ | (9) |
Gain from sales of businesses | 22 |  |  | 1 |  |  | 47 |  |  | 1 |
Equity earnings | 3 |  |  | 3 |  |  | 4 |  |  | 4 |
Pension and other postretirement | (3) |  |  | 8 |  |  | (6) |  |  | 14 |
Financial instruments and other | (19) |  |  | — |  |  | 11 |  |  | (13) |
Total | $ | 30 |  |  | $ | (1) |  |  | $ | 55 |  |  | $ | (3) |
Condensed Consolidated Statements of Financial Position Information Allowance for Doubtful Accounts Changes in the net carrying amount of allowance for doubtful accounts are as follows (in millions):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Balance at beginning of period | $ | 93 |  |  | $ | 101 |  |  | $ | 90 |  |  | $ | 98 |
Provision | 4 |  |  | 21 |  |  | 10 |  |  | 27 |
Accounts written off, net of recoveries | (9) |  |  | (19) |  |  | (12) |  |  | (23) |
Foreign currency translation and other | 3 |  |  | (1) |  |  | 3 |  |  | — |
Balance at end of period | $ | 91 |  |  | $ | 102 |  |  | $ | 91 |  |  | $ | 102 |
Other Current Assets The components of Other current assets are as follows (in millions):
As of | June 30, 2022 |  | December 31, 2021
Costs to fulfill contracts with customers (1) | $ | 239 |  |  | $ | 361 |
Prepaid expenses | 140 |  |  | 137 |
Taxes receivable | 68 |  |  | 53 |
Other | 225 |  |  | 165 |
Total | $ | 672 |  |  | $ | 716 |
(1)Refer to Note 3 “Revenue from Contracts with Customers” for further information. Other Non-Current Assets The components of Other non-current assets are as follows (in millions):
As of | June 30, 2022 |  | December 31, 2021
Costs to obtain contracts with customers (1) | $ | 182 |  |  | $ | 179 |
Taxes receivable | 90 |  |  | 95 |
Investments | 64 |  |  | 64 |
Leases | 52 |  |  | 63 |
Other | 115 |  |  | 111 |
Total | $ | 503 |  |  | $ | 512 |
(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, 2022 |  | December 31, 2021
Deferred revenue (1) | $ | 327 |  |  | $ | 321 |
Taxes payable | 272 |  |  | 149 |
Leases | 199 |  |  | 213 |
Other | 948 |  |  | 648 |
Total | $ | 1,746 |  |  | $ | 1,331 |
(1)During the three and six months ended June 30, 2022, revenue of $170 million and $373 million, respectively, was recognized in the Condensed Consolidated Statements of Income. During the three and six months ended June 30, 2021, revenue of $173 million and $344 million, respectively, was recognized in the Condensed Consolidated Statements of Income. Other Non-Current Liabilities The components of Other non-current liabilities are as follows (in millions):
As of | June 30, 2022 |  | December 31, 2021
Taxes payable (1) | $ | 621 |  |  | $ | 609 |
Compensation and benefits | 62 |  |  | 58 |
Leases | 37 |  |  | 46 |
Deferred revenue | 33 |  |  | 70 |
Other | 104 |  |  | 127 |
Total | $ | 857 |  |  | $ | 910 |
(1)Includes $129 million and $145 million for the non-current portion of the one-time mandatory transition tax on accumulated foreign earnings as of June 30, 2022 and December 31, 2021, respectively.

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