Assets Held For Sale	3 Months Ended
	Mar. 31, 2019
Assets Held For Sale [Abstract]
Assets Held For Sale	Assets Held For SaleAt March 31, 2019, the company classified $2.65 billion of net properties, plant and equipment as “Assets held for sale” on the Consolidated Balance Sheet. These assets are primarily associated with upstream operations that are anticipated to be sold in the next 12 months. The revenues and earnings contributions of these assets in 2018 and the first three months of 2019 were not material.