Income Taxes - Narrative (Details) € in Millions, $ in Millions										12 Months Ended
	May 05, 2023 USD ($)	Jan. 20, 2022	Oct. 05, 2021 USD ($)	Oct. 05, 2021 EUR (€)	Sep. 29, 2021 EUR (€)	Jan. 13, 2021 USD ($)	Dec. 19, 2020 USD ($)	May 07, 2020 USD ($)	Aug. 15, 2017 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 28, 2022 USD ($)	Aug. 22, 2019 USD ($)	Apr. 26, 2019 USD ($)
Operating Loss Carryforwards [Line Items]
Increase (decrease) in valuation allowance										$ 46.4	$ (56.2)	$ 35.9
Undistributed earnings of foreign subsidiaries										0.4
Undistributed earnings of foreign subsidiaries										3.5
Unrecognized tax benefits liability, interest and penalties accrued										74.9	85.8	105.1
Unrecognized tax benefits that would impact effective tax rate										185.2	217.0	240.1
Income tax examination, penalties and interest expense									$ 134.1				$ 24.7	$ 40.1	$ 41.8	$ 27.5
Cumulative deferred charge related to tax litigation										$ 113.3
Royalty conceded on all omeprazole sales as a percent of refund claims (percent)										5.24%
IRS Notice of Proposed Audit Adjustment from 2013, 2014 and 2015						$ 141.6
IRS Notice of Proposed Audit Adjustment for ANDA from 2013, 2014, and 2015						21.9
Income tax examination, debts subject to limit of deductibility of interest expense																		$ 7,500.0
Interest rate cap on debts for U.S. tax purposes, as percent of applicable Federal rate								130.00%
Income tax examination, reduction in blended interest rate due to cap for U.S. Federal tax purposes								4.00%
IRS notice of proposed audit adjustment to reduce deductible interest expense for fiscal years 2014 and 2015								$ 414.7
Blended interest rate proposed	5.44%	4.36%
Blended interest rate in RAR		2.57%
Stated blended interest rate on debt		6.80%
Income tax examination, interest expense (reduction)	$ (153.4)
IRS notice of proposed audit adjustment, increase to gross sales revenue							$ 99.5
Required payment from ITA																	$ 8.3
IRS notice of proposed audit adjustment from 2011, 2012, and 2013 audit of Athena, including penalty																			$ 843.0
IRS notice of proposed adjustment, penalty (percent)																			40.00%
Unrecognized tax benefits, period decrease										$ (104.9)	$ (17.1)	38.3
Latin America Businesses
Operating Loss Carryforwards [Line Items]
Undistributed earnings of foreign subsidiaries										3.1
Minimum
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax						25.0
Maximum
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax						$ 124.0
Irish Revenue
Operating Loss Carryforwards [Line Items]
Settlement amount | €					€ 297.0
Taxes paid			$ 307.5	€ 266.1
Israel Tax Authority
Operating Loss Carryforwards [Line Items]
Required payment from ITA												19.0
Offset of refunds, amount												17.2
Decrease in tax liability due to payment												$ 12.5
Expire Through Tax Year 2043
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards										27.2
Net operating loss carryforwards										615.2
No Expiration
Operating Loss Carryforwards [Line Items]
State tax credit carryforwards										6.7
Interest carryforward										218.0
No Expiration | U.S. Federal and Non-U.S.
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards										$ 1,400.0