Note 14 - Commitments and Contingencies - Personal Injury Liability Activity (Details) - USD ($) $ in Millions |
3 Months Ended | ||
---|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
Dec. 31, 2021 |
|
Balance, Current | $ 202 | $ 187 | |
Personal Injury [Member] | |||
Balance | 325 | $ 270 | |
Current year accruals | 23 | 18 | |
Changes in estimates for prior years | 6 | 21 | |
Payments | (22) | (16) | |
Balance | 332 | 293 | |
Balance, Current | $ 67 | $ 60 |