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Judgment: Royalty Rate on Future Sales

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Loss Contingency, Royalty Percentage On Future Sales

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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Amount of damages awarded to the plaintiff in the legal matter.

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

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The amount of cash paid for the settlement of litigation or for other legal issues during the period.

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Commitments and Contingencies (Details) $ in Millions		1 Months Ended			3 Months Ended			12 Months Ended
Commitments and Contingencies (Details) $ in Millions	Feb. 01, 2022	Oct. 31, 2021 patent	Apr. 30, 2020 plaintiff agreement	Dec. 31, 2019 USD ($) patent opposingParty	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($) lawsuit plaintiff	Dec. 31, 2016 party
Other Commitments [Line Items]
Number of additional patents allegedly infringed \| patent		2
Number of patents allegedly infringed, scenario two \| patent				2
Number of patents allegedly infringed, scenario one \| patent				4
Purchase commitments, year one						$ 1,100		$ 1,100
Purchase commitments, year two						450		450
Purchase commitments, year three						243		243
Purchase commitments, year four						60		60
Purchase commitments, year five						31		$ 31
ViiV
Other Commitments [Line Items]
Pre-tax charge to cost of goods sold						$ 1,250
ViiV \| Forecast
Other Commitments [Line Items]
Payments for legal settlements					$ 1,250
ViiV \| Subsequent event
Other Commitments [Line Items]
Royalty percentage on future sales	3.00%
Juno
Other Commitments [Line Items]
Amount reversed against previously recorded litigation accrual							$ 175
Damages awarded				$ 585
Running royalty rate from October 2017				27.60%
Enhanced damages on past sales			50.00%
Running royalty rate on future sales			27.60%
Pre-Exposure Prophylaxis
Other Commitments [Line Items]
Number of material transfer agreements \| agreement			4
European Patent Claims 2024 Expiration
Other Commitments [Line Items]
Number of parties appealed \| opposingParty				2
European Patent Claims 2026 Expiration
Other Commitments [Line Items]
Number of parties appealed \| opposingParty				3
European Patent Claims 2032 Expiration
Other Commitments [Line Items]
Number of parties appealed \| opposingParty				3
European Patent Claims 2027 Expiration
Other Commitments [Line Items]
Number of parties appealed \| opposingParty				2
Number of parties filing opposition \| party									3
Product Liability
Other Commitments [Line Items]
Number of claims filed \| lawsuit								1
Number of plaintiffs \| plaintiff								27,000
Qui Tam
Other Commitments [Line Items]
Number of plaintiffs \| plaintiff			2