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Changes in Accumulated Other Comprehensive Loss | 12 Months Ended
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Dec. 31, 2021
Changes in Accumulated Other Comprehensive Loss [Abstract] |
Changes in Accumulated Other Comprehensive Loss | 15. Changes in Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss consists of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Translation | ​ | Post-Retirement | ​ | ​ | ​
​ | ​ | Adjustments, Net | ​ | Benefits and | ​ | ​ | ​
​ |  | of Tax |  | Other, Net of Tax |  | Total
​ | ​ | (in millions)
Balance, December 31, 2020 | ​ | $ | (31) | ​ | $ | (49) | ​ | $ | (80)
Other comprehensive (loss) income before reclassifications, net of tax | ​ |  | (7) | ​ |  | 9 | ​ |  | 2
Reclassifications from accumulated other comprehensive loss to earnings, net of tax | ​ |  | — | ​ |  | 4 | ​ |  | 4
Other comprehensive (loss) income, net of tax | ​ |  | (7) | ​ |  | 13 | ​ |  | 6
Balance, December 31, 2021 | ​ | $ | (38) | ​ | $ | (36) | ​ | $ | (74)
​

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