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Changes in Equity
9 Months Ended
Sep. 30, 2025
Stockholders' Equity Note [Abstract]  
Changes in Equity
Note 7—Changes in Equity
Millions of Dollars
Common Stock
Par
Value
Capital in
Excess of
Par
Treasury
Stock
Accum. Other
Comprehensive
Income (Loss)
Retained
Earnings
Total
For the three months ended September 30, 2025
Balances at June 30, 2025$23 77,643 (73,899)(5,902)67,707 65,572 
Net income (loss)1,726 1,726 
Other comprehensive income (loss)(172)(172)
Dividends declared
Ordinary ($0.78 per common share)
(975)(975)
Repurchase of company common stock(1,274)(1,274)
Excise tax on share repurchases(13)(13)
Distributed under benefit plans58 58 
Other  
Balances at September 30, 2025$23 77,701 (75,186)(6,074)68,459 64,923 
For the nine months ended September 30, 2025
Balances at December 31, 2024
$23 77,529 (71,152)(6,473)64,869 64,796 
Net income (loss)
6,546 6,546 
Other comprehensive income (loss)
399 399 
Dividends declared
Ordinary ($2.34 per common share)
(2,957)(2,957)
Repurchase of company common stock
(3,996)(3,996)
Excise tax on share repurchases(38)(38)
Distributed under benefit plans
172 172 
Other
Balances at September 30, 2025
$23 77,701 (75,186)(6,074)68,459 64,923 
Millions of Dollars
Common Stock
Par
Value
Capital in
Excess of
Par
Treasury
Stock
Accum. Other
Comprehensive
Income (Loss)
Retained
Earnings
Total
For the three months ended September 30, 2024
Balances at June 30, 2024$21 61,381 (68,005)(5,961)62,309 49,745 
Net income (loss)2,059 2,059 
Other comprehensive income (loss)116 116 
Dividends declared
Ordinary ($0.58 per common share)
(677)(677)
Variable return of cash ($0.20 per common share)
(233)(233)
Repurchase of company common stock(1,168)(1,168)
Excise tax on share repurchases(11)(11)
Distributed under benefit plans
49 49 
Other
Balances at September 30, 2024
$21 61,430 (69,184)(5,845)63,459 49,881 
For the nine months ended September 30, 2024
Balances at December 31, 2023
$21 61,303 (65,640)(5,673)59,268 49,279 
Net income (loss)
6,939 6,939 
Other comprehensive income (loss)
(172)(172)
Dividends declared
Ordinary ($1.74 per common share)
(2,045)(2,045)
Variable return of cash ($0.60 per common share)
(704)(704)
Repurchase of company common stock
(3,513)(3,513)
Excise tax on share repurchases(31)(31)
Distributed under benefit plans
127 127 
Other
Balances at September 30, 2024
$21 61,430 (69,184)(5,845)63,459 49,881