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Redeemable Stocks of Subsidiaries (Tables)
9 Months Ended
Sep. 30, 2021
Redeemable Stock of Subsidiaries [Abstract]  
Temporary Equity [Table Text Block]
The following table summarizes the Company’s redeemable stock of subsidiaries balances as of the periods indicated (in millions):
September 30, 2021December 31, 2020
IPALCO common stock$618 $618 
AES Clean Energy Development common stock256 — 
Colon quotas (1)
— 194 
AES Indiana preferred stock60 60 
Total redeemable stock of subsidiaries$934 $872 
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(1)Characteristics of quotas are similar to common stock.