GOODWILL
DTE Energy has goodwill resulting from business combinations.
The following is the summary of change in the carrying amount of goodwill for the years ended December 31:
20202019
(In millions)
Balance as of January 1$2,464 $2,293 
Goodwill attributable to Gas Storage and Pipelines 2019 acquisition of Blue Union and LEAP2 171 
Balance at December 31$2,466 $2,464 

Historical Timeline

Fiscal YearFiled
2020Feb 19, 2021Showing above
2019Feb 5, 2020
2018Feb 7, 2019
2017Feb 16, 2018
2016Feb 9, 2017

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.