Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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+ Details

Discontinued Operations (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
Discontinued Operations (Details) - USD ($) $ in Millions	Mar. 11, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net income from discontinued operations		$ 0.0	$ 0.0	$ 0.0	$ 3,680.5
Gain related to disposition				$ 0.0	3,680.5
Elanco \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue					580.0
Net income from discontinued operations					3,680.0
Gain related to disposition					$ 3,700.0
Transitional services agreement, term	24 months
Eli Lilly And Company \| Elanco \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposition of ownership interest	80.20%