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Accumulated Comprehensive Loss (Tables) | 12 Months Ended
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Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Other comprehensive income activity, net of tax, is provided in the following table:
| Year Ended December 31,
| 2020 |  | 2019 |  | 2018
Pension |  |  |  |  |
Balance at beginning of period | $ | (89) |  |  | $ | (93) |  |  | $ | (84) |
Other comprehensive income before reclassifications, net of taxes | 3 |  |  | — |  |  | 3 |
Amounts reclassified from accumulated other comprehensive loss to income, net of taxes 1 | 5 |  |  | 4 |  |  | 6 |
Total other comprehensive income | 8 |  |  | 4 |  |  | 9 |
Reclassification of certain effects due to tax law changes 2 | — |  |  | — |  |  | (17) |
Balance at end of period | (81) |  |  | (89) |  |  | (93) |
Translation Adjustments |  |  |  |  |
Balance at beginning of period | (67) |  |  | (57) |  |  | (40) |
Translation adjustments | (1) |  |  | (10) |  |  | (17) |
Balance at end of period | (68) |  |  | (67) |  |  | (57) |
Other |  |  |  |  |
Balance at beginning of period | 3 |  |  | 4 |  |  | 2 |
Other comprehensive income before reclassifications, net of taxes | (2) |  |  | — |  |  | — |
Amounts reclassified from accumulated other comprehensive loss to income, net of taxes | (3) |  |  | (1) |  |  | 1 |
Total other comprehensive income | (5) |  |  | (1) |  |  | 1 |
Reclassification of certain effects due to tax law changes 2 | — |  |  | — |  |  | 1 |
Balance at end of period | (2) |  |  | 3 |  |  | 4 |
Accumulated other comprehensive loss, end of period | $ | (151) |  |  | $ | (153) |  |  | $ | (146) |
1 Amounts of actuarial loss and prior service cost are components of net periodic benefit cost. See note 18 above for additional details. 2 We reclassified certain tax effects from tax law changes of $16 million from "Accumulated other comprehensive loss" to "Retained earnings" on our Consolidated Balance Sheet in accordance with ASU 2018-02, Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income, which we adopted in 2018.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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