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Business Combinations and Divestitures	3 Months Ended
Business Combinations and Divestitures	Mar. 31, 2020
Business Combinations [Abstract]
Business Combinations and Divestitures	Business Combinations and Divestitures Acquisitions We did not have any acquisitions of businesses in the three months ended March 31, 2020 or 2019. We paid $12 million in March 2020 and an additional $12 million in April 2020 as deferred consideration associated with our acquisition of the remaining 50% equity interest in our Qatari joint venture which took place in the first quarter of 2018. Divestitures We did not have any significant dispositions of businesses in the three months ended March 31, 2020. In the first quarter of 2019, we completed the final closings pursuant to the purchase and sale agreements entered into with ADES International Holding Ltd. related to agreements primarily to sell our land drilling rig operations in Algeria, Kuwait and Saudi Arabia for an aggregate purchase price of $287.5 million. We received gross proceeds of $72 million in the first quarter of 2019. The loss on the sale of land drilling rigs operations recognized in the first quarter of 2019 was $6 million and divested a carrying amount of $66 million in net assets previously included in assets held for sale as of December 31, 2018.