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v3.20.2

Receivables (Tables) | 6 Months Ended
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Jun. 30, 2020
Receivables [Line Items] |
Accounts Receivable Details | Details for accounts receivable included on the balance sheets were as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
| June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019
Customer |  | $92.7 |  |  |  | $91.6 |  |  |  | $— |  |  |  | $— |  |  |  | $82.4 |  |  |  | $83.5 |
Unbilled utility revenues | 68.2 |  |  | 82.1 |  |  | — |  |  | — |  |  | 68.2 |  |  | 82.1 |
Deferred proceeds | 194.1 |  |  | 187.7 |  |  | 194.1 |  |  | 187.7 |  |  | — |  |  | — |
Other | 41.5 |  |  | 48.0 |  |  | 16.5 |  |  | 16.3 |  |  | 24.5 |  |  | 31.4 |
Allowance for expected credit losses | (10.0 | ) |  | (7.3 | ) |  | (1.7 | ) |  | (1.2 | ) |  | (8.2 | ) |  | (6.1 | )
|  | $386.5 |  |  |  | $402.1 |  |  |  | $208.9 |  |  |  | $202.8 |  |  |  | $166.9 |  |  |  | $190.9 |
Maximum And Average Outstanding Cash Proceeds | IPL’s maximum and average outstanding cash proceeds (based on daily outstanding balances) related to the sales of accounts receivable program for the three and six months ended June 30 were as follows (in millions):
| Three Months |  | Six Months
| 2020 |  | 2019 |  | 2020 |  | 2019
Maximum outstanding aggregate cash proceeds |  | $65.0 |  |  |  | $25.0 |  |  |  | $96.0 |  |  |  | $108.0 |
Average outstanding aggregate cash proceeds | 11.1 |  |  | 2.6 |  |  | 17.3 |  |  | 41.6 |
Schedule of Sales Of Accounts Receivable Sold Under Agreement Table Text Block | The attributes of IPL’s receivables sold under the Receivables Agreement were as follows (in millions):
| June 30, 2020 |  | December 31, 2019
Customer accounts receivable |  | $113.5 |  |  |  | $124.7 |
Unbilled utility revenues | 92.3 |  |  | 95.5 |
Other receivables | 0.4 |  |  | 0.9 |
Receivables sold to third party | 206.2 |  |  | 221.1 |
Less: cash proceeds | 1.0 |  |  | 27.0 |
Deferred proceeds | 205.2 |  |  | 194.1 |
Less: allowance for expected credit losses | 11.1 |  |  | 6.4 |
Fair value of deferred proceeds |  | $194.1 |  |  |  | $187.7 |
Additional Attributes Of Receivables Sold Under The Receivables Agreement | Additional attributes of IPL’s receivables sold under the Receivables Agreement for the three and six months ended June 30 were as follows (in millions):
| Three Months |  | Six Months
| 2020 |  | 2019 |  | 2020 |  | 2019
Collections |  | $453.0 |  |  |  | $487.7 |  |  |  | $994.4 |  |  |  | $1,043.5 |
Write-offs, net of recoveries | 1.2 |  |  | 2.6 |  |  | 3.3 |  |  | 8.1 |
IPL [Member] |
Receivables [Line Items] |
Accounts Receivable Details | Details for accounts receivable included on the balance sheets were as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
| June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019
Customer |  | $92.7 |  |  |  | $91.6 |  |  |  | $— |  |  |  | $— |  |  |  | $82.4 |  |  |  | $83.5 |
Unbilled utility revenues | 68.2 |  |  | 82.1 |  |  | — |  |  | — |  |  | 68.2 |  |  | 82.1 |
Deferred proceeds | 194.1 |  |  | 187.7 |  |  | 194.1 |  |  | 187.7 |  |  | — |  |  | — |
Other | 41.5 |  |  | 48.0 |  |  | 16.5 |  |  | 16.3 |  |  | 24.5 |  |  | 31.4 |
Allowance for expected credit losses | (10.0 | ) |  | (7.3 | ) |  | (1.7 | ) |  | (1.2 | ) |  | (8.2 | ) |  | (6.1 | )
|  | $386.5 |  |  |  | $402.1 |  |  |  | $208.9 |  |  |  | $202.8 |  |  |  | $166.9 |  |  |  | $190.9 |
Maximum And Average Outstanding Cash Proceeds | IPL’s maximum and average outstanding cash proceeds (based on daily outstanding balances) related to the sales of accounts receivable program for the three and six months ended June 30 were as follows (in millions):
| Three Months |  | Six Months
| 2020 |  | 2019 |  | 2020 |  | 2019
Maximum outstanding aggregate cash proceeds |  | $65.0 |  |  |  | $25.0 |  |  |  | $96.0 |  |  |  | $108.0 |
Average outstanding aggregate cash proceeds | 11.1 |  |  | 2.6 |  |  | 17.3 |  |  | 41.6 |
Schedule of Sales Of Accounts Receivable Sold Under Agreement Table Text Block | The attributes of IPL’s receivables sold under the Receivables Agreement were as follows (in millions):
| June 30, 2020 |  | December 31, 2019
Customer accounts receivable |  | $113.5 |  |  |  | $124.7 |
Unbilled utility revenues | 92.3 |  |  | 95.5 |
Other receivables | 0.4 |  |  | 0.9 |
Receivables sold to third party | 206.2 |  |  | 221.1 |
Less: cash proceeds | 1.0 |  |  | 27.0 |
Deferred proceeds | 205.2 |  |  | 194.1 |
Less: allowance for expected credit losses | 11.1 |  |  | 6.4 |
Fair value of deferred proceeds |  | $194.1 |  |  |  | $187.7 |
Additional Attributes Of Receivables Sold Under The Receivables Agreement | Additional attributes of IPL’s receivables sold under the Receivables Agreement for the three and six months ended June 30 were as follows (in millions):
| Three Months |  | Six Months
| 2020 |  | 2019 |  | 2020 |  | 2019
Collections |  | $453.0 |  |  |  | $487.7 |  |  |  | $994.4 |  |  |  | $1,043.5 |
Write-offs, net of recoveries | 1.2 |  |  | 2.6 |  |  | 3.3 |  |  | 8.1 |
WPL [Member] |
Receivables [Line Items] |
Accounts Receivable Details | Details for accounts receivable included on the balance sheets were as follows (in millions):
| Alliant Energy |  | IPL |  | WPL
| June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019 |  | June 30, 2020 |  | December 31, 2019
Customer |  | $92.7 |  |  |  | $91.6 |  |  |  | $— |  |  |  | $— |  |  |  | $82.4 |  |  |  | $83.5 |
Unbilled utility revenues | 68.2 |  |  | 82.1 |  |  | — |  |  | — |  |  | 68.2 |  |  | 82.1 |
Deferred proceeds | 194.1 |  |  | 187.7 |  |  | 194.1 |  |  | 187.7 |  |  | — |  |  | — |
Other | 41.5 |  |  | 48.0 |  |  | 16.5 |  |  | 16.3 |  |  | 24.5 |  |  | 31.4 |
Allowance for expected credit losses | (10.0 | ) |  | (7.3 | ) |  | (1.7 | ) |  | (1.2 | ) |  | (8.2 | ) |  | (6.1 | )
|  | $386.5 |  |  |  | $402.1 |  |  |  | $208.9 |  |  |  | $202.8 |  |  |  | $166.9 |  |  |  | $190.9 |

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