The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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-Section 50
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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.

+ References

No definition available.

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Contingencies (Third-Party Guarantees) (Details) $ in Millions, $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Oct. 17, 2020 CAD ($)	Oct. 17, 2020 USD ($)
Canadian Government \| Financial Guarantee
Loss Contingencies [Line Items]
Value of financial guarantee			$ 173	$ 131
Philip Morris Investment B.V. \| Medicago Inc.
Loss Contingencies [Line Items]
Ownership interest (as a percent)	23.00%	32.00%