v3.20.4
Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of Carrying Values and Fair Values of Long-term Debt
The carrying amounts and fair values of our short-term and long-term debt included in our Consolidated Balance Sheets were as follows:
Level within the Fair Value HierarchyDecember 31, 2020December 31, 2019
(in millions)
Carrying Amount (1)
Fair Value (1)
Carrying Amount (1)
Fair Value (1)
Liabilities:
Senior Unsecured Notes to third parties1$29,966 $32,450 $10,958 $11,479 
Senior Notes to affiliates24,716 4,991 9,986 10,366 
Senior Secured Notes to third parties136,204 40,519 — — 
Incremental Term Loan Facility to affiliates2— — 4,000 4,000 
(1) Excludes $240 million and $25 million as of December 31, 2020 and 2019, respectively, in vendor financing arrangements and other debt as the carrying values approximate fair value primarily due to the short-term maturities of these instruments.