Acquisitions and Other Transactions (Other Transactions) (Narrative) (Details) € in Millions, shares in Millions, $ in Millions					1 Months Ended		2 Months Ended	12 Months Ended
	Nov. 13, 2020 USD ($) shares	Jul. 29, 2019 USD ($)	Feb. 27, 2019 USD ($)	Sep. 20, 2018 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 EUR (€)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) market	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 25, 2021 EUR (€)
Business Acquisition [Line Items]
Research and development								$ 751.1	$ 555.1	$ 639.9
Contingent consideration liability					$ 223.6		$ 223.6	199.7	223.6	250.7
Goodwill					12,347.0		12,347.0	12,113.7	12,347.0	$ 9,590.6
Machinery and equipment
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life, in years	5 years
Finite-Lived Intangible Assets
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life, in years	15 years
Maximum | Building
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life, in years	20 years
Minimum | Building
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life, in years	10 years
Upjohn Inc.
Business Acquisition [Line Items]
Cash paid to acquire asset	$ 12,000.0
Business Acquisition, Percentage of Voting Interests Acquired		43.00%
Property, plant and equipment					1,394.1		1,394.1	1,389.1	1,394.1
Business Combination, Acquisition Related Costs								234.6	602.9
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 10,730.0
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares | shares	689.9
Net earnings							360.9	1,483.7	1,873.5
Total revenues							866.5	18,284.8	21,582.7
Goodwill	$ 2,400.0				2,107.5		2,107.5	2,403.1	2,107.5
Inventories	1,430.0							(34.2)
Property, plant and equipment	385.0							(5.0)
Identified intangible assets	18,040.0				18,040.0		$ 18,040.0	18,040.0	18,040.0
Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Long-Term Debt	$ 759.4
Amortization of Inventory Step Up								$ 1,190.0	$ 238.2
Number Of Markets | market								165
Other companies | Product rights and licenses
Business Acquisition [Line Items]
Acquisition purchase price								$ 10.0
Aspen Global Incorporated
Business Acquisition [Line Items]
Acquisition purchase price | €						€ 641.9
Cash paid to acquire asset | €						€ 263.2
Aspen Global Incorporated | Contractual Rights
Business Acquisition [Line Items]
Acquired intangible assets, weighted average useful life, in years						8 years
FKB
Business Acquisition [Line Items]
Upfront payments			$ 33.0	$ 25.0
Research and development			$ 23.3
Net sales | Upjohn Inc.
Business Acquisition [Line Items]
Number Of Products		20
Pfizer, Inc.
Business Acquisition [Line Items]
Inventory, Firm Purchase Commitment, Loss					$ 86.5
Pfizer, Inc. | Upjohn Inc.
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent		57.00%
Upjohn Inc. | Pfizer, Inc.
Business Acquisition [Line Items]
Payments for Business Separation		$ 12,000.0
Scenario, Plan | Aspen Global Incorporated
Business Acquisition [Line Items]
Contingent consideration liability | €											€ 378.7