v3.22.0.1
Note 7 - Income Taxes - Schedule of Income Tax Expense Components (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Federal, current $ 1,446 $ 1,026 $ 1,000
State, current 347 259 254
Foreign, current 8 6 8
Total current tax expense 1,801 1,291 1,262
Federal, deferred 199 295 417
State, deferred [a] [1] (44) 45 128
Foreign, deferred (1) 0 21
Total deferred and other tax expense 154 340 566
Total income tax expense $ 1,955 $ 1,631 $ 1,828
[1] In 2021, Nebraska, Oklahoma, Idaho, Louisiana and Arkansas enacted corporate income tax legislation that resulted in a net $32 million reduction of our deferred tax expense. In 2019, Arkansas enacted legislation to reduce their corporate income tax rate for future years resulting in a $21 million reduction of our deferred tax expense.