XML 28 R16.htm IDEA: XBRL DOCUMENT v3.20.2
REGULATORY ASSETS AND LIABILITIES
 6 Months Ended
Jun. 30, 2020
Regulatory Assets and Liabilities Disclosure [Abstract]  
REGULATORY ASSETS AND LIABILITIES REGULATORY ASSETS AND LIABILITIES
The following regulatory assets and liabilities were reflected on our balance sheets at June 30, 2020 and December 31, 2019. For more information on our regulatory assets and liabilities, see Note 5, Regulatory Assets and Liabilities, in our 2019 Annual Report on Form 10-K.
(in millions)June 30, 2020December 31, 2019
Regulatory assets
Pension and OPEB costs$1,013.7  $1,066.6  
Plant retirements844.6  856.4  
Environmental remediation costs690.4  685.5  
Income tax related items456.1  457.8  
Asset retirement obligations195.4  137.5  
SSR138.8  151.5  
Uncollectible expense76.1  52.2  
Derivatives23.8  33.8  
We Power generation15.8  25.8  
Other, net69.8  60.5  
Total regulatory assets$3,524.5  $3,527.6  
Balance sheet presentation
Other current assets$14.1  $20.9  
Regulatory assets3,510.4  3,506.7  
Total regulatory assets$3,524.5  $3,527.6  

(in millions)June 30, 2020December 31, 2019
Regulatory liabilities
Income tax related items$2,192.5  $2,248.8  
Removal costs 1,202.4  1,181.5  
Pension and OPEB benefits343.5  354.9  
Energy costs refundable through rate adjustments138.9  89.8  
Electric transmission costs66.4  42.2  
Earnings sharing mechanisms38.2  43.5  
Uncollectible expense33.2  39.1  
Decoupling28.0  36.8  
Energy efficiency programs27.3  30.7  
Other, net24.2  13.1  
Total regulatory liabilities$4,094.6  $4,080.4  
Balance sheet presentation
Other current liabilities$126.1  $87.6  
Regulatory liabilities3,968.5  3,992.8  
Total regulatory liabilities$4,094.6  $4,080.4