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Changes in Accumulated Other Comprehensive Loss | 9 Months Ended
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Sep. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Abstract] |
Accumulated Other Comprehensive Loss | Changes in Accumulated Other Comprehensive Loss. Changes in accumulated other comprehensive loss consists of the following:
| Post-Retirement Benefits, Net of Tax |  | Hedge Instruments, Net of Tax |  | Translation Adjustments and Other, Net of Tax |  | Total
| (in millions)
Balance, December 31, 2016 | $ | (614 | ) |  | $ | (22 | ) |  | $ | (948 | ) |  | $ | (1,584 | )
Other comprehensive income before reclassifications, net of tax | — |  |  | 1 |  |  | 108 |  |  | 109 |
Reclassifications from accumulated other comprehensive loss to earnings | 17 |  |  | (2 | ) |  | (1 | ) |  | 14 |
Other comprehensive income (loss), net of tax | 17 |  |  | (1 | ) |  | 107 |  |  | 123 |
Balance, September 30, 2017 | $ | (597 | ) |  | $ | (23 | ) |  | $ | (841 | ) |  | $ | (1,461 | )

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- Definition Accumulated Other Comprehensive Income (Loss) [Text Block] + References No definition available. + Details
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