Cash Flow Information	9 Months Ended
Cash Flow Information	Sep. 30, 2021
Cash Flow Information [Abstract]
Cash Flow Information	Note 14—Cash Flow Information Millions of Dollars Nine Months Ended September 30 Cash Payments 2021 2020 Interest $ 695 591 Income taxes 358 803 Net Sales (Purchases) of Investments Short-term investments purchased $ (5,487) (9,662) Short-term investments sold 8,478 8,776 Long-term investments purchased (228) (271) Long-term investments sold 83 68 $ 2,846 (1,089) We paid a deposit of $ 475 million under the terms of the agreement of the Shell Permian Acquisition. This deposit is included within the “Cash Flows from Investing Activities - Other” on our consolidated statement of cash flows. for additional information on cash and non-cash changes to our consolidated balance sheet associated with our Concho acquisition and information on the announced Shell transaction.