Other Income (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Other Income and Expenses [Abstract]
Gain on sale of assets	$ 34	$ 1	$ 38	$ 4
Royalty income	2	2	6	5
Share of net earnings of equity affiliates	4	2	9	8
Income from legal settlements	0	0	22	0
Other	16	19	71	36
Total Other income	56	$ 24	146	53
Gain on sale of assets	$ 34		$ 34	$ 0

Amount of gain (loss) on sale or disposal of assets, including but not limited to property plant and equipment, intangible assets and equity in securities of subsidiaries or equity method investee.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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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 income (loss) for proportionate share of equity method investee's income (loss).

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Amount of revenue and income classified as other.

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Amount of income related to nonoperating activities, classified as other.

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Ancillary revenue earned during the period from the consideration paid to the entity for the use of its rights and property by another party. Examples include licensing the use of copyrighted materials and leasing the extraction of natural resources.

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