Income Taxes - Narrative (Details) € in Millions									12 Months Ended						24 Months Ended
	Jan. 20, 2022 USD ($)	Oct. 05, 2021 USD ($)	Oct. 05, 2021 EUR (€)	Sep. 29, 2021 EUR (€)	Jan. 13, 2021 USD ($)	Dec. 19, 2020 USD ($)	May 15, 2020 USD ($)	Aug. 15, 2017 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Dec. 31, 2020 USD ($)	Jul. 09, 2021 EUR (€)	Dec. 29, 2020 USD ($)	Dec. 31, 2019 USD ($)	Aug. 22, 2019 USD ($)	Apr. 26, 2019 USD ($)	Nov. 29, 2018 EUR (€)
Operating Loss Carryforwards [Line Items]
Undistributed foreign earnings									$ 42,500,000
Undistributed foreign earnings of subsidiaries									500,000
Outside basis difference in foreign business held for sale									20,100,000
Undistributed earnings of foreign subsidiaries indefinitely reinvested									9,200,000
Undistributed earnings of foreign subsidiaries									1,200,000
Increase (decrease) in valuation allowance									(35,900,000)
Release deferred tax assets									51,500,000
Unrecognized tax benefits liability, interest and penalties accrued									105,100,000	$ 108,900,000					$ 108,900,000			$ 98,100,000
Unrecognized tax benefits that would impact effective tax rate									240,100,000	250,200,000					250,200,000			$ 204,600,000
Income tax examination, penalties and interest expense								$ 134,100,000			$ 24,700,000	$ 40,100,000	$ 41,800,000	$ 27,500,000
Cumulative deferred charge related to tax litigation									$ 111,600,000
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					$ 141,600,000
IRS Notice of Proposed Audit Adjustment for ANDA from 2013, 2014, and 2015									$ 21,900,000
Income tax examination, debts subject to limit of deductibility of interest expense																			$ 7,500,000,000
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							$ 414,700,000
IRS notice of proposed audit adjustment, increase to gross sales revenue						$ 99,500,000
IRS notice of proposed audit adjustment from 2011, 2012, and 2013 audit of Athena, including penalty																				$ 843,000,000
IRS notice of proposed adjustment, penalty (percent)																				40.00%
Payment of assessment due before final determination of tax case and appeal									0
Unrecognized tax benefits, period decrease									38,300,000
Reduction of income tax expense due to enactment of the CARES Act															$ 36,600,000
Reduction of income tax expense due to change In IRS regulations										$ 8,900,000
Irish Revenue
Operating Loss Carryforwards [Line Items]
Irish revenue, potential reduction in tax assessment | €																€ 660.0
Expire Through Tax Year 2040
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards									43,600,000
Net operating loss carryforwards									367,200,000
No Expiration
Operating Loss Carryforwards [Line Items]
State tax credit carryforwards									9,000,000
U.S. interest carryforward									28,100,000
No Expiration | U.S. Federal and Non-U.S.
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards									1,200,000,000
Tax Year 2021
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax									7,000,000
Subsequent Event
Operating Loss Carryforwards [Line Items]
Blended interest rate proposed	4.36%
Blended interest rate in RAR	2.57%
Stated blended interest rate on debt	6.80%
Income tax examination, estimated increase to tax expense from audit adjustment to fiscal years 2014 and 2015, excluding interest and penalties	$ 72,900,000
Income tax examination, estimate of additional tax	58,500,000
Subsequent Event | Tax Years 2013-2015
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax	$ 18,000,000
Minimum
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax					24,000,000
Maximum
Operating Loss Carryforwards [Line Items]
Income tax examination, estimate of additional tax					$ 112,000,000
Irish Revenue
Operating Loss Carryforwards [Line Items]
Notice of unsettled assessed audit liability, amount | €																					€ 1,643.0
Unsettled audit assessment from income tax examination | €																					€ 1,636.0
Settlement amount | €				€ 297.0
Taxes paid		$ 307,500,000	€ 266.1
Israel Tax Authority
Operating Loss Carryforwards [Line Items]
Unsettled audit assessment from income tax examination																	$ 63,800,000
Required payment from ITA									19,000,000
Offset of refunds, amount									17,200,000
Decrease in tax liability due to payment									$ 12,500,000