Significant Accounting Policies (Tables) |
12 Months Ended | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2020 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Accounting Policies [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Schedule of Fair Value Measurements | The following table presents the fair value of our variable rate term debt and senior notes, estimated using inputs based on bid and offer prices that are Level 2 inputs, and principal carrying amount (in millions):
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