|($ millions except per share amounts)||2020||2019||2018||2017||2016|
|Net income (loss) applicable to common shares||486||769||(502)||30||155|
|Normalized net income(1)(2)||396||347||195||204||153|
|Total long-term liabilities||11,264||9,301||11,746||4,578||4,589|
|Net additions (dispositions) to property, plant and equipment||825||(1,090)||573||388||405|
|Normalized funds from operations(1)||1,003||895||657||615||554|
|($ per basic share, except shares outstanding and debt to capitalization ratio)|
|Net income (loss) - basic||1.74||2.78||(2.25)||0.18||0.99|
|Net income (loss) - diluted||1.74||2.77||(2.25)||0.18||0.99|
|Normalized net income(1)(2)||1.42||1.25||0.88||1.19||0.98|
|Normalized funds from operations(1)||3.59||3.23||2.95||3.60||3.52|
|Shares outstanding - basic (millions)|
|During the period(4)||279||277||223||171||157|
|End of period||279||279||275||175||167|
|Debt-to-total capitalization ratio (%)||52||49||57||44||45|
(1) Non-GAAP financial measure; see discussion in Non-GAAP Financial Measures section of the MD&A.
(2) Beginning in 2020, Management no longer adjusts normalized EBITDA or normalized net income for changes in the fair value of natural gas optimization inventory. As such, 2019 balances have been adjusted to reflect the impacts of this change.
(3) In 2020, AltaGas revised its reportable segments to align with the structure of its business following asset sales completed as part of its 2019 asset monetization program. Beginning in 2020, AltaGas has two operating segments: Utilities (which includes the WGL retail marketing business) and Midstream. The Corporate/Other segment consists of AltaGas' corporate activities and a small portfolio of remaining power assets. Segment totals for 2019 have been adjusted to reflect the impacts of this change.
(4) Weighted average.