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Other Income, Net (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
AFUDC - Equity | $ 18.0 | $ 20.9 | $ 14.4
Earnings from equity method investments | 158.1 | 175.8 | 127.6
Other income, net | 133.2 | 79.5 | 102.2
Other income, net |  |  |
Non-service components of net periodic benefit costs | 72.2 | 41.2 | 36.2
AFUDC - Equity | 18.0 | 20.9 | 14.4
Gains from investments held in rabbi trust | 18.6 | 12.7 | 21.2
Earnings from equity method investments | 19.9 | 2.4 | 3.5
Other, net | 4.5 | 2.3 | 26.9
Other income, net | $ 133.2 | $ 79.5 | $ 102.2

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