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Legal Proceedings and Contingent Liabilities - Legal proceedings (Details) item in Millions, $ in Millions	1 Months Ended			2 Months Ended		6 Months Ended
	Jun. 30, 2021 USD ($) agreement item	Feb. 28, 2021 patent	Jan. 31, 2021 claim patent	May 31, 2021 case	Nov. 30, 2020 lawsuit	Jun. 30, 2021 lawsuit agreement item
Commitments and contingent liabilities
Number of patents infringed or potentially infringed | patent		3
Forxiga | Sandoz
Commitments and contingent liabilities
Number of patents infringed or potentially infringed | patent		3	3
Number of notices received | claim			3
PARP Inhibitor Royalty Dispute
Commitments and contingent liabilities
Number of royalty-bearing patent license agreements | agreement	2					2
US 340B Litigation
Commitments and contingent liabilities
Number of claims filed					2
US 340B Litigation | US District Court for the District of Columbia
Commitments and contingent liabilities
Number of claims filed					1
US 340B Litigation | United States District Court For Northern District Of California
Commitments and contingent liabilities
Number of claims filed					1
European Commission Claim Regarding AZD1222
Commitments and contingent liabilities
Number of claims filed | case				2
Number of doses ordered to supply | item	50					50
Tagrisso | India
Commitments and contingent liabilities
Amount of claim | $	$ 21
Nexium And Prilosec | US District Court for the Middle District of Louisiana
Commitments and contingent liabilities
Number of claims filed						1

X

- Definition

Represents the amount of the claim filed.

+ References

No definition available.

+ Details

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

No definition available.

+ Details

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- Definition

Represents number of doses the Company was ordered to supply.

+ References

No definition available.

+ Details

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- Definition

Number of notices received related to patent proceedings.

+ References

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+ Details

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- Definition

Number of patents that are infringed or potentially infringed.

+ References

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- Definition

Number of royalty-bearing patent license agreements.

+ References

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- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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