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Supplementary Data Redeemable Noncontrolling Interests (Tables) | 6 Months Ended
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Jun. 30, 2015
Redeemable Noncontrolling Interests [Abstract] |
Changes in Redeemable Noncontrolling Interests | The following table presents changes in our redeemable noncontrolling interests.
| Six months ended June 30,
| 2015 |  | 2014
Balance at beginning of period | $ | 257.4 |  |  | $ | 249.1 |
Change in related noncontrolling interests balance | (8.3 | ) |  | (6.8 | )
Changes in redemption value of redeemable noncontrolling interests: |  |  |
Additions | 0.0 |  |  | 7.9 |
Redemptions and other | (22.5 | ) |  | (2.9 | )
Redemption value adjustments 1 | 3.5 |  |  | (0.9 | )
Balance at end of period | $ | 230.1 |  |  | $ | 246.4 |
1 | In each reporting period, redeemable noncontrolling interests are reported at their estimated redemption value, but not less than their initial fair value. Any adjustment to the redemption value above initial value prior to exercise will also impact retained earnings or additional paid-in capital, except adjustments as a result of currency translation.

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