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Collaborations And Other Arrangements Narrative (Details) - Other Collaborative Arrangements [Member] - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Collaborative and Other Arrangements[Line Items]
Cash Outflows and Accrued Expenses Related to Collaborative and Other Arrangements	$ 105	$ 187
Up-front Collaboration and Licensing Expenses Related to Collaborative and Other Similar Arrangements	$ 97	$ 126

X

- Definition

Cash outflows and accrued expenses related to collaborative and other arrangements

+ References

No definition available.

+ Details

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X

- Definition

Up-front collaboration and licensing Expenses Related to Collaborative and Other Similar Arrangements

+ References

No definition available.

+ Details

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X

- Definition

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

+ References

No definition available.

+ Details

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- Details

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