Contingencies and Certain Commitments (Product Litigation, Commercial and Other Matters, Resolved Matters) (Details)	7 Months Ended	12 Months Ended
	Dec. 31, 2020 classAction	Dec. 31, 2018 manufacturer lagoon	Dec. 31, 2017 classAction	Dec. 31, 2013 lagoon	Apr. 04, 2021 lawsuit
Pfizer And Hospira And Various Other Manufacturers Versus Mississippi Attorney General [Member] | Docetaxel [Member] | Pending Litigation [Member]
Loss Contingencies [Line Items]
Number of defendants other than main defendant | manufacturer		8
Array Securities Litigation [Member]
Loss Contingencies [Line Items]
Number of class actions filed			2
Zantac/Ranitidine NDMA Litigation [Member]
Loss Contingencies [Line Items]
Number of class actions filed	2
Environmental Remediation Litigation [Member]
Loss Contingencies [Line Items]
Feasibility study, number of lagoons | lagoon		2		2
Minimum [Member] | EpiPen [Member]
Loss Contingencies [Line Items]
Number of lawsuits | lawsuit					1