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Fair Value Disclosure
3 Months Ended
Mar. 31, 2020
Fair Value Disclosures [Abstract]  
Fair Value Disclosure Fair Value Disclosure

Our financial instruments consist of cash and cash equivalents, restricted cash, accounts receivable, advances to affiliates, accounts payable, note payable-affiliate and long-term debt, excluding finance lease and
other obligations. Due to their short-term nature, the carrying amounts of our cash, cash equivalents and restricted cash, accounts receivable, advances to affiliates, accounts payable and note-payable-affiliate approximate their fair values.

The three input levels in the hierarchy of fair value measurements are defined by the Fair Value Measurement and Disclosure framework generally as follows:
Input Level
 
Description of Input
Level 1
 
Observable inputs such as quoted market prices in active markets.
Level 2
 
Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3
 
Unobservable inputs in which little or no market data exists.
The following table presents the carrying amounts and estimated fair values of our long-term debt, excluding finance lease and other obligations, as well as the input level used to determine the fair values indicated below:
 
 
 
March 31, 2020
 
December 31, 2019
 
Input
Level
 
Carrying
Amount
 
Fair
Value
 
Carrying
Amount
 
Fair
Value
 
 
 
(Dollars in millions)
Liabilities—Long-term debt (excluding finance lease and other obligations)
2
 
$
4,846

 
4,397

 
5,941

 
6,258