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Noncontrolling Interests (Tables) | 12 Months Ended
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Dec. 31, 2017
Noncontrolling Interest [Abstract] |
Activity for equity attributable to noncontrolling interests | Activity for the equity attributable to noncontrolling interests for 2017, 2016 and 2015 is as follows:
| 2017 |  |  |  | 2016 |  |  | 2015 |
Balance at January 1 | $ | 1,166 |  |  |  | $ | 1,170 |  |  | $ | 1,163 |
Net income | 74 |  |  |  | 66 |  |  | 123 |
Distributions to noncontrolling interests | (78 | ) |  |  | (63 | ) |  | (128 | )
Other changes, net | 33 |  |  |  | (7 | ) |  | 12 |
Balance at December 31 | $ | 1,195 |  |  |  | $ | 1,166 |  |  | $ | 1,170 |

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- References No definition available. + Details
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