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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.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of liabilities classified as other.

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Intangible Assets - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jul. 01, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense		$ 15.6	$ 0.0	$ 16.8	$ 0.0
Finite-lived intangible asset, expected amortization, remainder of fiscal year		15.6		15.6
Finite-lived intangible asset, expected amortization, year one		62.0		62.0
Finite-lived intangible asset, expected amortization, year two		62.0		62.0
Finite-lived intangible asset, expected amortization, year three		62.0		62.0
Finite-lived intangible asset, expected amortization, year four		62.0		62.0
Finite-lived intangible asset, expected amortization, year five		$ 62.0		$ 62.0
Sanofi
Acquired Finite-Lived Intangible Assets [Line Items]
Up-front payment to collaborating party	$ 900.0
Sanofi Collaboration Agreement, Amended and Restated Immuno-oncology License and Collaboration Agreement
Acquired Finite-Lived Intangible Assets [Line Items]
Other liabilities						$ 241.0