Revenue Recognition and Accounts Receivable Revenue Disaggregation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 16,218.1	$ 17,813.6	$ 11,819.9
Biocon Biologics
Disaggregation of Revenue [Line Items]
Net sales	(63.5)
Brands
Disaggregation of Revenue [Line Items]
Net sales	9,889.6	10,841.3	5,234.9
Complex Gx and Biosimilars
Disaggregation of Revenue [Line Items]
Net sales	1,313.4	1,342.1	1,295.5
Generics
Disaggregation of Revenue [Line Items]
Net sales	5,015.1	5,630.2	5,289.5
Net sales
Disaggregation of Revenue [Line Items]
Net sales	16,218.1	17,813.6	11,819.9
Developed Markets | Brands
Disaggregation of Revenue [Line Items]
Net sales	5,160.4	5,759.2	3,920.7
Developed Markets | Complex Gx and Biosimilars
Disaggregation of Revenue [Line Items]
Net sales	1,218.0	1,241.6	1,202.6
Developed Markets | Generics
Disaggregation of Revenue [Line Items]
Net sales	3,390.5	3,427.9	3,387.6
Greater China | Brands
Disaggregation of Revenue [Line Items]
Net sales	2,190.7	2,207.8	253.9
Greater China | Complex Gx and Biosimilars
Disaggregation of Revenue [Line Items]
Net sales	0.6	0.2	0.7
Greater China | Generics
Disaggregation of Revenue [Line Items]
Net sales	9.9	4.8	5.3
JANZ | Brands
Disaggregation of Revenue [Line Items]
Net sales	922.6	1,197.1	617.0
JANZ | Complex Gx and Biosimilars
Disaggregation of Revenue [Line Items]
Net sales	44.1	46.5	42.8
JANZ | Generics
Disaggregation of Revenue [Line Items]
Net sales	665.7	783.8	535.5
Emerging Markets | Brands
Disaggregation of Revenue [Line Items]
Net sales	1,615.9	1,677.2	443.3
Emerging Markets | Complex Gx and Biosimilars
Disaggregation of Revenue [Line Items]
Net sales	50.7	53.8	49.4
Emerging Markets | Generics
Disaggregation of Revenue [Line Items]
Net sales	949.0	1,413.7	1,361.1
Operating Segments
Disaggregation of Revenue [Line Items]
Net sales	16,218.1	17,813.6
Operating Segments | Developed Markets
Disaggregation of Revenue [Line Items]
Net sales	9,768.9	10,428.7	8,510.9
Operating Segments | Greater China
Disaggregation of Revenue [Line Items]
Net sales	2,201.2	2,212.8	259.9
Operating Segments | JANZ
Disaggregation of Revenue [Line Items]
Net sales	1,632.4	2,027.4	1,195.3
Operating Segments | Emerging Markets
Disaggregation of Revenue [Line Items]
Net sales	$ 2,615.6	$ 3,144.7	$ 1,853.8