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Assets Held For Sale	9 Months Ended
	Sep. 30, 2021
Assets Held For Sale [Abstract]
Assets Held For Sale	Assets Held For SaleAt September 30, 2021, the company classified $1.98 billion of net properties, plant and equipment as “Assets held for sale” on the Consolidated Balance Sheet. These assets are associated with upstream operations that are anticipated to be sold in the next 12 months. The revenues and earnings contributions of these assets in 2020 and the first nine months of 2021 were not material.

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Assets Held For Sale [Abstract]

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Assets Held For Sale Disclosure [Text Block]

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