XML 88 R75.htm IDEA: XBRL DOCUMENT v3.23.3
Income Taxes, Reconciliation (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Reconciliation of the provision for income taxes [Abstract]        
Pre-Tax Net Book Income ("NBI") $ 1,372 $ 1,410 $ 4,100 $ 4,217
Texas Margin Tax [1] (17) (10) (33) (29)
State income tax provision, net of federal benefit 0 0 (1) (1)
Federal income tax provision computed by applying the federal statutory rate to NBI of corporate entities (5) (4) (11) (11)
Other 0 (4) 0 (13)
Total provision for income taxes $ (22) $ (18) $ (45) $ (54)
Effective income tax rate (1.60%) (1.30%) (1.10%) (1.30%)
[1] Although the Texas Margin Tax is not considered a state income tax, it has the characteristics of an income tax since it is determined by applying a tax rate to a base that considers our Texas-sourced revenues and expenses.