Presented in the following tables is financial information by reportable segment: In Millions Three Months Ended Nine Months Ended September 30 2018 2017 2018 2017 CMS Energy, including Consumers Operating revenue Electric utility $ 1,313 $ 1,247 $ 3,480 $ 3,360 Gas utility 189 190 1,272 1,176 Enterprises 57 58 181 172 Other reconciling items 40 32 111 97 Total operating revenue  CMS Energy $ 1,599 $ 1,527 $ 5,044 $ 4,805 Consumers Operating revenue Electric utility $ 1,313 $ 1,247 $ 3,480 $ 3,360 Gas utility 189 190 1,272 1,176 Total operating revenue  Consumers $ 1,502 $ 1,437 $ 4,752 $ 4,536 CMS Energy, including Consumers Net income (loss) available to common stockholders Electric utility $ 199 $ 176 $ 468 $ 394 Gas utility (19 ) 5 105 101 Enterprises 4 8 33 27 Other reconciling items (15 ) (17 ) (57 ) (59 ) Total net income available to common stockholders  CMS Energy $ 169 $ 172 $ 549 $ 463 Consumers Net income (loss) available to common stockholder Electric utility $ 199 $ 176 $ 468 $ 394 Gas utility (19 ) 5 105 101 Total net income available to common stockholder  Consumers $ 180 $ 181 $ 573 $ 495 In Millions September 30, 2018 December 31, 2017 CMS Energy, including Consumers Plant, property, and equipment, gross Electric utility 1 $ 15,772 $ 15,221 Gas utility 1 7,534 7,080 Enterprises 405 167 Other reconciling items 40 38 Total plant, property, and equipment, gross  CMS Energy $ 23,751 $ 22,506 Consumers Plant, property, and equipment, gross Electric utility 1 $ 15,772 $ 15,221 Gas utility 1 7,534 7,080 Other reconciling items 16 17 Total plant, property, and equipment, gross  Consumers $ 23,322 $ 22,318 CMS Energy, including Consumers Total assets Electric utility 1 $ 13,850 $ 13,906 Gas utility 1 7,513 7,139 Enterprises 538 342 Other reconciling items 2,012 1,663 Total assets  CMS Energy $ 23,913 $ 23,050 Consumers Total assets Electric utility 1 $ 13,914 $ 13,907 Gas utility 1 7,556 7,139 Other reconciling items 22 53 Total assets  Consumers $ 21,492 $ 21,099 1 Amounts include a portion of Consumers other common assets attributable to both the electric and gas utility businesses.