Related Party Transactions (Tables)	12 Months Ended
Dec. 31, 2019
Related Party Transactions [Abstract]
Significant transactions with related parties	Note 23—Related Party Transactions Our related parties primarily include equity method investments and certain trusts for the benefit of employees. Significant transactions with our equity affiliates were: Millions of Dollars 2019 2018 2017 Operating revenues and other income $ 89 98 107 Purchases 38 98 99 Operating expenses and selling, general and administrative expenses 65 60 59 Net interest (income) expense* (13) (14) (13) *We paid interest to, or received interest from, various affiliates. See Note 6—Investments, Loans and Long-Term Receivables, for additional information on loans to affiliated companies.

Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2019

Note 23—Related Party Transactions

Our related parties primarily include equity method

investments and certain trusts for the benefit

of employees.

Significant transactions with our equity affiliates

were:

Millions of Dollars

2019

2018

2017

Operating revenues and other income

107

Purchases

Operating expenses and selling, general and administrative

expenses

Net interest (income) expense*

(13)

(14)

(13)

*We paid interest to, or received interest from,

various affiliates.

See Note 6—Investments, Loans and Long-Term Receivables, for additional

information on loans to affiliated companies.