Consolidated and Combined Statement of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income (loss)	$ (560.1)	$ 67.9	$ 86.5
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation and amortization	516.9	314.5	296.0
Change in deferred income taxes	(124.8)	0.1	(60.7)
Stock-based compensation expense	47.7	49.4	26.0
Asset impairment charges	25.1	32.6	120.5
Gain on sale of assets	(51.3)	0.0	(0.8)
Gain on divestitures	(170.0)	0.0	0.0
Inventory fair value step-up amortization	90.1	0.6	0.0
Other non-cash operating activities, net	19.7	(12.7)	49.0
Other changes in operating assets and liabilities, net of acquisitions and divestitures:
Receivables	14.0	(172.4)	(122.0)
Inventories	(94.7)	(33.7)	(20.1)
Other assets	(122.9)	7.0	(3.2)
Accounts payable and other liabilities	369.3	(29.2)	116.1
Net Cash Provided by (Used for) Operating Activities	(41.0)	224.1	487.3
Cash Flows from Investing Activities
Purchases of property and equipment	(134.6)	(140.4)	(134.5)
Disposals of property and equipment	72.7	0.3	9.4
Purchases of software	(176.3)	(57.0)	(2.0)
Cash paid for acquisitions, net of cash acquired (Note 6)	(5,001.3)	(32.8)	0.0
Divestiture proceeds (Note 6)	434.7	0.0	0.0
Proceeds from settlement of net investment hedges (Note 11)	32.7	0.0	0.0
Other investing activities, net	(7.1)	(4.9)	0.1
Net Cash Used for Investing Activities	(4,779.2)	(234.8)	(127.0)
Cash Flows from Financing Activities
Proceeds from issuance of long-term debt	4,804.2	0.0	2,500.0
Repayments of long-term borrowings	(951.5)	(121.1)	(7.5)
Proceeds from issuance of common stock and tangible equity units (Note 1 and Note 9)	1,219.9	0.0	1,659.7
Debt issuance costs	(102.5)	0.0	(24.5)
Consideration paid to Lilly in connection with the Separation (Note 1)	0.0	(191.6)	(3,991.3)
Other financing activities, net	(16.2)	1.6	(17.2)
Other net transactions with Lilly	0.0	6.3	(154.4)
Net Cash Provided by (Used for) Financing Activities	4,953.9	(304.8)	(35.2)
Effect of exchange rate changes on cash and cash equivalents	26.6	(16.9)	29.0
Net (decrease) increase in cash, cash equivalents and restricted cash	160.3	(332.4)	354.1
Cash, cash equivalents and restricted cash at beginning of period	345.1	677.5	323.4
Cash, cash equivalents and restricted cash at end of period	505.4	345.1	677.5
Cash, cash equivalents and restricted cash at end of period	$ 345.1	$ 345.1	$ 677.5