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Common Equity
 6 Months Ended
Jun. 30, 2020
Common Equity [Line Items]  
Common Equity COMMON EQUITY
Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:
Shares outstanding, January 1, 2020
245,022,800

Equity forward agreements
4,275,127

Shareowner Direct Plan
248,220

Equity-based compensation plans
98,205

Shares outstanding, June 30, 2020
249,644,352



Equity Forward Agreements - In November 2019, Alliant Energy entered into forward sale agreements with a counterparty in connection with a public offering of 4,275,127 shares of Alliant Energy common stock. The initial forward sale price of $52.235 per share was subject to daily adjustment based on a floating interest rate factor, and decreased by other fixed amounts specified in the forward sale agreements. In the first quarter of 2020, Alliant Energy settled $222 million under the forward sale agreements by delivering 4,275,127 shares of newly issued Alliant Energy common stock at a weighted average forward sale price of $51.98 per share. Alliant Energy used the net proceeds from the settlements for general corporate purposes.

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):
Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$2.5

 

$2,674.1

 

$2,833.7

 

$2.0

 

($9.9
)
 

$200.0

 

$5,702.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
134.4

 
 
 
 
 
 
 
134.4

Common stock dividends ($0.38 per share)
 
 
 
 
(94.6
)
 
 
 
 
 
 
 
(94.6
)
Shareowner Direct Plan issuances


 
6.4

 
 
 
 
 
 
 
 
 
6.4

Equity-based compensation plans and other
 
 
2.6

 
 
 
 
 
(0.3
)
 
 
 
2.3

Other comprehensive loss, net of tax
 
 
 
 
 
 
(2.6
)
 
 
 
 
 
(2.6
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$2.4

 

$2,100.0

 

$2,587.3

 

$2.4

 

($9.7
)
 

$200.0

 

$4,882.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
94.6

 
 
 
 
 
 
 
94.6

Common stock dividends ($0.355 per share)
 
 
 
 
(84.1
)
 
 
 
 
 
 
 
(84.1
)
Shareowner Direct Plan issuances


 
6.0

 
 
 
 
 
 
 
 
 
6.0

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.3
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.4
)
 
 
 
 
 
(1.4
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$2.5

 

$2,445.9

 

$2,765.4

 

$1.3

 

($10.0
)
 

$200.0

 

$5,405.1

Net income attributable to Alliant Energy common shareowners
 
 
 
 
304.4

 
 
 
 
 
 
 
304.4

Common stock dividends ($0.76 per share)
 
 
 
 
(187.6
)
 
 
 
 
 
 
 
(187.6
)
Equity forward settlements and Shareowner Direct Plan issuances


 
234.8

 
 
 
 
 
 
 
 
 
234.8

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.2
)
 
 
 
2.2

Adoption of new accounting standard, net of tax (refer to Note 1(d))
 
 
 
 
(8.7
)
 
 
 
 
 
 
 
(8.7
)
Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.9
)
 
 
 
 
 
(1.9
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$2.4

 

$2,045.5

 

$2,545.9

 

$1.7

 

($9.8
)
 

$200.0

 

$4,785.7

Net income attributable to Alliant Energy common shareowners
 
 
 
 
219.7

 
 
 
 
 
 
 
219.7

Common stock dividends ($0.71 per share)
 
 
 
 
(167.8
)
 
 
 
 
 
 
 
(167.8
)
Equity forward settlements and Shareowner Direct Plan issuances
 
 
60.6

 
 
 
 
 
 
 
 
 
60.6

Equity-based compensation plans and other
 
 
2.3

 
 
 
 
 
(0.2
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(0.7
)
 
 
 
 
 
(0.7
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$33.4

 

$2,447.8

 

$914.2

 

$200.0

 

$3,595.4

Net income available for common stock
 
 
 
 
59.8

 
 
 
59.8

Common stock dividends
 
 
 
 
(59.1
)
 
 
 
(59.1
)
Capital contributions from parent
 
 
75.0

 
 
 
 
 
75.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$33.4

 

$2,322.8

 

$785.8

 

$200.0

 

$3,342.0

Net income available for common stock
 
 
 
 
45.0

 
 
 
45.0

Common stock dividends
 
 
 
 
(41.9
)
 
 
 
(41.9
)
Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$33.4

 

$2,347.8

 

$890.6

 

$200.0

 

$3,471.8

Net income available for common stock
 
 
 
 
142.4

 
 
 
142.4

Common stock dividends
 
 
 
 
(118.1
)
 
 
 
(118.1
)
Capital contributions from parent
 
 
175.0

 
 
 
 
 
175.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$33.4

 

$2,222.8

 

$774.5

 

$200.0

 

$3,230.7

Net income available for common stock
 
 
 
 
98.3

 
 
 
98.3

Common stock dividends
 
 
 
 
(83.9
)
 
 
 
(83.9
)
Capital contributions from parent
 
 
100.0

 
 
 
 
 
100.0

Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$66.2

 

$1,459.0

 

$910.9

 

$2,436.1

Net income
 
 
 
 
57.6

 
57.6

Common stock dividends
 
 
 
 
(41.9
)
 
(41.9
)
Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$66.2

 

$1,309.0

 

$804.0

 

$2,179.2

Net income
 
 
 
 
42.0

 
42.0

Common stock dividends
 
 
 
 
(36.0
)
 
(36.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2


WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$66.2

 

$1,434.0

 

$863.4

 

$2,363.6

Net income
 
 
 
 
147.2

 
147.2

Common stock dividends
 
 
 
 
(84.0
)
 
(84.0
)
Capital contributions from parent
 
 
25.0

 
 
 
25.0

Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$66.2

 

$1,309.0

 

$774.3

 

$2,149.5

Net income
 
 
 
 
107.7

 
107.7

Common stock dividends
 
 
 
 
(72.0
)
 
(72.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2
IPL [Member]  
Common Equity [Line Items]  
Common Equity COMMON EQUITY
Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:
Shares outstanding, January 1, 2020
245,022,800

Equity forward agreements
4,275,127

Shareowner Direct Plan
248,220

Equity-based compensation plans
98,205

Shares outstanding, June 30, 2020
249,644,352



Equity Forward Agreements - In November 2019, Alliant Energy entered into forward sale agreements with a counterparty in connection with a public offering of 4,275,127 shares of Alliant Energy common stock. The initial forward sale price of $52.235 per share was subject to daily adjustment based on a floating interest rate factor, and decreased by other fixed amounts specified in the forward sale agreements. In the first quarter of 2020, Alliant Energy settled $222 million under the forward sale agreements by delivering 4,275,127 shares of newly issued Alliant Energy common stock at a weighted average forward sale price of $51.98 per share. Alliant Energy used the net proceeds from the settlements for general corporate purposes.

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):
Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$2.5

 

$2,674.1

 

$2,833.7

 

$2.0

 

($9.9
)
 

$200.0

 

$5,702.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
134.4

 
 
 
 
 
 
 
134.4

Common stock dividends ($0.38 per share)
 
 
 
 
(94.6
)
 
 
 
 
 
 
 
(94.6
)
Shareowner Direct Plan issuances


 
6.4

 
 
 
 
 
 
 
 
 
6.4

Equity-based compensation plans and other
 
 
2.6

 
 
 
 
 
(0.3
)
 
 
 
2.3

Other comprehensive loss, net of tax
 
 
 
 
 
 
(2.6
)
 
 
 
 
 
(2.6
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$2.4

 

$2,100.0

 

$2,587.3

 

$2.4

 

($9.7
)
 

$200.0

 

$4,882.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
94.6

 
 
 
 
 
 
 
94.6

Common stock dividends ($0.355 per share)
 
 
 
 
(84.1
)
 
 
 
 
 
 
 
(84.1
)
Shareowner Direct Plan issuances


 
6.0

 
 
 
 
 
 
 
 
 
6.0

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.3
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.4
)
 
 
 
 
 
(1.4
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$2.5

 

$2,445.9

 

$2,765.4

 

$1.3

 

($10.0
)
 

$200.0

 

$5,405.1

Net income attributable to Alliant Energy common shareowners
 
 
 
 
304.4

 
 
 
 
 
 
 
304.4

Common stock dividends ($0.76 per share)
 
 
 
 
(187.6
)
 
 
 
 
 
 
 
(187.6
)
Equity forward settlements and Shareowner Direct Plan issuances


 
234.8

 
 
 
 
 
 
 
 
 
234.8

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.2
)
 
 
 
2.2

Adoption of new accounting standard, net of tax (refer to Note 1(d))
 
 
 
 
(8.7
)
 
 
 
 
 
 
 
(8.7
)
Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.9
)
 
 
 
 
 
(1.9
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$2.4

 

$2,045.5

 

$2,545.9

 

$1.7

 

($9.8
)
 

$200.0

 

$4,785.7

Net income attributable to Alliant Energy common shareowners
 
 
 
 
219.7

 
 
 
 
 
 
 
219.7

Common stock dividends ($0.71 per share)
 
 
 
 
(167.8
)
 
 
 
 
 
 
 
(167.8
)
Equity forward settlements and Shareowner Direct Plan issuances
 
 
60.6

 
 
 
 
 
 
 
 
 
60.6

Equity-based compensation plans and other
 
 
2.3

 
 
 
 
 
(0.2
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(0.7
)
 
 
 
 
 
(0.7
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$33.4

 

$2,447.8

 

$914.2

 

$200.0

 

$3,595.4

Net income available for common stock
 
 
 
 
59.8

 
 
 
59.8

Common stock dividends
 
 
 
 
(59.1
)
 
 
 
(59.1
)
Capital contributions from parent
 
 
75.0

 
 
 
 
 
75.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$33.4

 

$2,322.8

 

$785.8

 

$200.0

 

$3,342.0

Net income available for common stock
 
 
 
 
45.0

 
 
 
45.0

Common stock dividends
 
 
 
 
(41.9
)
 
 
 
(41.9
)
Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$33.4

 

$2,347.8

 

$890.6

 

$200.0

 

$3,471.8

Net income available for common stock
 
 
 
 
142.4

 
 
 
142.4

Common stock dividends
 
 
 
 
(118.1
)
 
 
 
(118.1
)
Capital contributions from parent
 
 
175.0

 
 
 
 
 
175.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$33.4

 

$2,222.8

 

$774.5

 

$200.0

 

$3,230.7

Net income available for common stock
 
 
 
 
98.3

 
 
 
98.3

Common stock dividends
 
 
 
 
(83.9
)
 
 
 
(83.9
)
Capital contributions from parent
 
 
100.0

 
 
 
 
 
100.0

Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$66.2

 

$1,459.0

 

$910.9

 

$2,436.1

Net income
 
 
 
 
57.6

 
57.6

Common stock dividends
 
 
 
 
(41.9
)
 
(41.9
)
Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$66.2

 

$1,309.0

 

$804.0

 

$2,179.2

Net income
 
 
 
 
42.0

 
42.0

Common stock dividends
 
 
 
 
(36.0
)
 
(36.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2


WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$66.2

 

$1,434.0

 

$863.4

 

$2,363.6

Net income
 
 
 
 
147.2

 
147.2

Common stock dividends
 
 
 
 
(84.0
)
 
(84.0
)
Capital contributions from parent
 
 
25.0

 
 
 
25.0

Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$66.2

 

$1,309.0

 

$774.3

 

$2,149.5

Net income
 
 
 
 
107.7

 
107.7

Common stock dividends
 
 
 
 
(72.0
)
 
(72.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2
WPL [Member]  
Common Equity [Line Items]  
Common Equity COMMON EQUITY
Common Share Activity - A summary of Alliant Energy’s common stock activity was as follows:
Shares outstanding, January 1, 2020
245,022,800

Equity forward agreements
4,275,127

Shareowner Direct Plan
248,220

Equity-based compensation plans
98,205

Shares outstanding, June 30, 2020
249,644,352



Equity Forward Agreements - In November 2019, Alliant Energy entered into forward sale agreements with a counterparty in connection with a public offering of 4,275,127 shares of Alliant Energy common stock. The initial forward sale price of $52.235 per share was subject to daily adjustment based on a floating interest rate factor, and decreased by other fixed amounts specified in the forward sale agreements. In the first quarter of 2020, Alliant Energy settled $222 million under the forward sale agreements by delivering 4,275,127 shares of newly issued Alliant Energy common stock at a weighted average forward sale price of $51.98 per share. Alliant Energy used the net proceeds from the settlements for general corporate purposes.

Changes in Shareowners’ Equity - A summary of changes in shareowners’ equity was as follows (in millions):
Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$2.5

 

$2,674.1

 

$2,833.7

 

$2.0

 

($9.9
)
 

$200.0

 

$5,702.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
134.4

 
 
 
 
 
 
 
134.4

Common stock dividends ($0.38 per share)
 
 
 
 
(94.6
)
 
 
 
 
 
 
 
(94.6
)
Shareowner Direct Plan issuances


 
6.4

 
 
 
 
 
 
 
 
 
6.4

Equity-based compensation plans and other
 
 
2.6

 
 
 
 
 
(0.3
)
 
 
 
2.3

Other comprehensive loss, net of tax
 
 
 
 
 
 
(2.6
)
 
 
 
 
 
(2.6
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$2.4

 

$2,100.0

 

$2,587.3

 

$2.4

 

($9.7
)
 

$200.0

 

$4,882.4

Net income attributable to Alliant Energy common shareowners
 
 
 
 
94.6

 
 
 
 
 
 
 
94.6

Common stock dividends ($0.355 per share)
 
 
 
 
(84.1
)
 
 
 
 
 
 
 
(84.1
)
Shareowner Direct Plan issuances


 
6.0

 
 
 
 
 
 
 
 
 
6.0

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.3
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.4
)
 
 
 
 
 
(1.4
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

Alliant Energy
Total Alliant Energy Common Equity
 
 
 
 
 
 
 
 
 
 
 
Accumulated
 
Shares in
 
Cumulative
 
 
 
 
 
Additional
 
 
 
Other
 
Deferred
 
Preferred
 
 
 
Common
 
Paid-In
 
Retained
 
Comprehensive
 
Compensation
 
Stock
 
Total
 
Stock
 
Capital
 
Earnings
 
Income (Loss)
 
Trust
 
of IPL
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$2.5

 

$2,445.9

 

$2,765.4

 

$1.3

 

($10.0
)
 

$200.0

 

$5,405.1

Net income attributable to Alliant Energy common shareowners
 
 
 
 
304.4

 
 
 
 
 
 
 
304.4

Common stock dividends ($0.76 per share)
 
 
 
 
(187.6
)
 
 
 
 
 
 
 
(187.6
)
Equity forward settlements and Shareowner Direct Plan issuances


 
234.8

 
 
 
 
 
 
 
 
 
234.8

Equity-based compensation plans and other
 
 
2.4

 
 
 
 
 
(0.2
)
 
 
 
2.2

Adoption of new accounting standard, net of tax (refer to Note 1(d))
 
 
 
 
(8.7
)
 
 
 
 
 
 
 
(8.7
)
Other comprehensive loss, net of tax
 
 
 
 
 
 
(1.9
)
 
 
 
 
 
(1.9
)
Ending balance, June 30, 2020

$2.5

 

$2,683.1

 

$2,873.5

 

($0.6
)
 

($10.2
)
 

$200.0

 

$5,748.3

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$2.4

 

$2,045.5

 

$2,545.9

 

$1.7

 

($9.8
)
 

$200.0

 

$4,785.7

Net income attributable to Alliant Energy common shareowners
 
 
 
 
219.7

 
 
 
 
 
 
 
219.7

Common stock dividends ($0.71 per share)
 
 
 
 
(167.8
)
 
 
 
 
 
 
 
(167.8
)
Equity forward settlements and Shareowner Direct Plan issuances
 
 
60.6

 
 
 
 
 
 
 
 
 
60.6

Equity-based compensation plans and other
 
 
2.3

 
 
 
 
 
(0.2
)
 
 
 
2.1

Other comprehensive loss, net of tax
 
 
 
 
 
 
(0.7
)
 
 
 
 
 
(0.7
)
Ending balance, June 30, 2019

$2.4

 

$2,108.4

 

$2,597.8

 

$1.0

 

($10.0
)
 

$200.0

 

$4,899.6

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$33.4

 

$2,447.8

 

$914.2

 

$200.0

 

$3,595.4

Net income available for common stock
 
 
 
 
59.8

 
 
 
59.8

Common stock dividends
 
 
 
 
(59.1
)
 
 
 
(59.1
)
Capital contributions from parent
 
 
75.0

 
 
 
 
 
75.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$33.4

 

$2,322.8

 

$785.8

 

$200.0

 

$3,342.0

Net income available for common stock
 
 
 
 
45.0

 
 
 
45.0

Common stock dividends
 
 
 
 
(41.9
)
 
 
 
(41.9
)
Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

IPL
Total IPL Common Equity
 
 
 
 
 
 
 
Additional
 
 
 
Cumulative
 
 
 
Common
 
Paid-In
 
Retained
 
Preferred
 
Total
 
Stock
 
Capital
 
Earnings
 
Stock
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$33.4

 

$2,347.8

 

$890.6

 

$200.0

 

$3,471.8

Net income available for common stock
 
 
 
 
142.4

 
 
 
142.4

Common stock dividends
 
 
 
 
(118.1
)
 
 
 
(118.1
)
Capital contributions from parent
 
 
175.0

 
 
 
 
 
175.0

Ending balance, June 30, 2020

$33.4

 

$2,522.8

 

$914.9

 

$200.0

 

$3,671.1

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$33.4

 

$2,222.8

 

$774.5

 

$200.0

 

$3,230.7

Net income available for common stock
 
 
 
 
98.3

 
 
 
98.3

Common stock dividends
 
 
 
 
(83.9
)
 
 
 
(83.9
)
Capital contributions from parent
 
 
100.0

 
 
 
 
 
100.0

Ending balance, June 30, 2019

$33.4

 

$2,322.8

 

$788.9

 

$200.0

 

$3,345.1

WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Three Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, March 31, 2020

$66.2

 

$1,459.0

 

$910.9

 

$2,436.1

Net income
 
 
 
 
57.6

 
57.6

Common stock dividends
 
 
 
 
(41.9
)
 
(41.9
)
Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Three Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, March 31, 2019

$66.2

 

$1,309.0

 

$804.0

 

$2,179.2

Net income
 
 
 
 
42.0

 
42.0

Common stock dividends
 
 
 
 
(36.0
)
 
(36.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2


WPL
 
 
Additional
 
 
 
Total
 
Common
 
Paid-In
 
Retained
 
Common
 
Stock
 
Capital
 
Earnings
 
Equity
Six Months Ended June 30, 2020
 
 
 
 
 
 
 
Beginning balance, December 31, 2019

$66.2

 

$1,434.0

 

$863.4

 

$2,363.6

Net income
 
 
 
 
147.2

 
147.2

Common stock dividends
 
 
 
 
(84.0
)
 
(84.0
)
Capital contributions from parent
 
 
25.0

 
 
 
25.0

Ending balance, June 30, 2020

$66.2

 

$1,459.0

 

$926.6

 

$2,451.8

Six Months Ended June 30, 2019
 
 
 
 
 
 
 
Beginning balance, December 31, 2018

$66.2

 

$1,309.0

 

$774.3

 

$2,149.5

Net income
 
 
 
 
107.7

 
107.7

Common stock dividends
 
 
 
 
(72.0
)
 
(72.0
)
Ending balance, June 30, 2019

$66.2

 

$1,309.0

 

$810.0

 

$2,185.2