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Redeemable Stock of Subsidiaries | 12 Months Ended
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Dec. 31, 2017
Temporary Equity [Abstract] |
REDEEMABLE STOCK OF SUBSIDIARES | REDEEMABLE STOCK OF SUBSIDIARIES The following table is a reconciliation of changes in redeemable stock of subsidiaries (in millions):
December 31, | 2017 |  | 2016
Balance at the beginning of the period | $ | 782 |  |  | $ | 538 |
Sale of redeemable stock of subsidiaries | — |  |  | 134 |
Contributions from holders of redeemable stock of subsidiaries | 50 |  |  | 130 |
Net loss attributable to redeemable stock of subsidiaries | (14 | ) |  | (11 | )
Fair value adjustment (1) | 25 |  |  | 4 |
Other comprehensive income (loss) attributable to redeemable stock of subsidiaries | (2 | ) |  | 6 |
Acquisition and reclassification of stock of subsidiaries | (4 | ) |  | (19 | )
Balance at the end of the period | $ | 837 |  |  | $ | 782 |
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(1) | $5 million increase in fair value of DP&L preferred shares offset by $1 million decrease in fair value of Colon common stock in 2016.
The following table summarizes the Company's redeemable stock of subsidiaries balances as of the periods indicated (in millions):
December 31, | 2017 |  | 2016
IPALCO common stock | $ | 618 |  |  | $ | 618 |
Colon quotas (1) | 159 |  |  | 100 |
IPL preferred stock | 60 |  |  | 60 |
Other common stock | — |  |  | 4 |
Total redeemable stock of subsidiaries | $ | 837 |  |  | $ | 782 |
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(1) | Characteristics of quotas are similar to common stock.
Colon — Our partner in Colon made capital contributions of $50 million and $106 million during the year ended December 31, 2017 and 2016, respectively. Any subsequent adjustments to allocate earnings and dividends to our partner, or measure the investment at fair value, will be classified as temporary equity each reporting period as it is probable that the shares will become redeemable. IPL — IPL had $60 million of cumulative preferred stock outstanding at December 31, 2017 and 2016, which represent five series of preferred stock. The total annual dividend requirements were approximately $3 million at December 31, 2017 and 2016. Certain series of the preferred stock were redeemable solely at the option of the issuer at prices between $100 and $118 per share. Holders of the preferred stock are entitled to elect a majority of IPL's board of directors if IPL has not paid dividends to its preferred stockholders for four consecutive quarters. Based on the preferred stockholders' ability to elect a majority of IPL's board of directors in this circumstance, the redemption of the preferred shares is considered to be not solely within the control of the issuer and the preferred stock is considered temporary equity. DPL — DPL had $18 million of cumulative preferred stock outstanding as of December 31, 2015, for which redemption became probable in September 2016. As such, the Company recorded an adjustment of $5 million to retained earnings to adjust the preferred shares to their redemption value of $23 million. In October 2016, DPL redeemed all of its preferred shares. Upon redemption, the preferred shares were no longer outstanding and all rights of the shareholders of DPL ceased to exist. IPALCO — In February 2015, CDPQ purchased 15% of AES US Investment, Inc., a wholly-owned subsidiary of IPALCO, for $247 million, with an option to invest an additional $349 million in IPALCO through 2016 in exchange for a 17.65% equity stake. In April 2015, CDPQ invested an additional $214 million in IPALCO, which resulted in CDPQ's combined direct and indirect interest in IPALCO of 24.90%. As a result of these transactions, $84 million in taxes and transaction costs were recognized as a net decrease to equity. The Company also recognized an increase to additional paid-in-capital and a reduction to retained earnings of $377 million for the excess of the fair value of the shares over their book value. No gain or loss was recognized in net income as the transaction was not considered to be a sale of in-substance real estate. In March 2016, CDPQ exercised its remaining option by investing $134 million in IPALCO, which resulted in CDPQ's combined direct and indirect interest in IPALCO of 30%. The Company also recognized an increase to additional paid-in-capital and a reduction to retained earnings of $84 million for the excess of the fair value of the shares over their book value. In June 2016, CDPQ contributed an additional $24 million to IPALCO, with no impact to the ownership structure of the investment. Any subsequent adjustments to allocate earnings and dividends to CDPQ will be classified as NCI within permanent equity as it is not probable that the shares will become redeemable.

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