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Deficit
 12 Months Ended
Dec. 31, 2019
Equity [abstract]  
Deficit
DEFICIT
($ millions)
2019

 
2018

 
Accumulated earnings (deficit)
(4,028.3
)
 
(2,980.6
)
 
Accumulated gain on shares issued pursuant to DRIP (1) and SDP (2)
8.4

 
8.4

 
Accumulated tax effect on redemption of restricted shares
12.1

 
12.1

 
Accumulated dividends
(7,629.1
)
 
(7,607.1
)
 
Deficit
(11,636.9
)
 
(10,567.2
)
 
(1)
Premium Dividend TM and Dividend Reinvestment Plan.
(2)
Share Dividend Plan.