Summary of key changes in GE's revenue composition:
Power Segment: GE's acquisition of Alstom's energy division helped the contribution of its Power segment surge to 30% in 2016 from around 20% over 2011-15. But operational issues in the Power segment dragged its contribution down to 26%.
Lighting Segment: GE's iconic lighting segment has steadily fallen out of favor as lights got commoditized. The segment also spun-off its commercial division in 2015 - explaining the drastic reduction in the segment's contribution
Oil & Gas Segment: Revenue's for the segment have been volatile due to fluctuations in oil prices, but largely remained around 13-14% of total revenues till 2017. The contribution exceeded 18% in 2018 due to GE's acquisition of Baker Hughes
Aviation Segment: The aviation segment stands out due to its strong organic growth over the years, which helped contribution increase from below 18% in 2011 to almost 25% in 2018.