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CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) | Dec. 31, 2020 | Apr. 29, 2020 | Dec. 31, 2019 | Dec. 06, 2010
--- | --- | --- | --- | ---
3.00% Senior Notes, due May 2030 |  |  |  |
Stated interest rate | 3.00% |  |  |
4.5% Senior Notes, due December 2020 |  |  |  |
Stated interest rate |  |  | 4.50% | 4.50%
Senior Notes | 3.00% Senior Notes, due May 2030 |  |  |  |
Stated interest rate | 3.00% | 3.00% |  |
Senior Notes | 4.5% Senior Notes, due December 2020 |  |  |  |
Stated interest rate | 4.50% |  |  |

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