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Long-term Debt and Finance Leases
 3 Months Ended
Mar. 31, 2022
Debt Disclosure [Abstract]  
Long-term Debt and Finance Leases Long-term Debt and Finance Leases
Long-term debt and finance leases consisted of the following:
(In millions, except rates)March 31, 2022December 31, 2021Interest rate %
Recourse debt:
Senior Notes, due 2027$375 $375 6.625
Senior Notes, due 2028821 821 5.750
Senior Notes, due 2029733 733 5.250
Senior Notes, due 2029500 500 3.375
Senior Notes, due 20311,030 1,030 3.625
Senior Notes, due 20321,100 1,100 3.875
Convertible Senior Notes, due 2048(a)
575 575 2.750
Senior Secured First Lien Notes, due 2024600 600 3.750
Senior Secured First Lien Notes, due 2025500 500 2.000
Senior Secured First Lien Notes, due 2027900 900 2.450
Senior Secured First Lien Notes, due 2029500 500 4.450
Tax-exempt bonds466 466 
1.250 - 4.750
Subtotal recourse debt8,100 8,100 
Finance leases13 13 various
Subtotal long-term debt and finance leases (including current maturities)8,113 8,113 
Less current maturities(4)(4)
Less debt issuance costs(81)(83)
Discounts(2)(60)
Total long-term debt and finance leases$8,026 $7,966 
(a)As of the ex-dividend date of April 29, 2022, the Convertible Senior Notes were convertible at a price of 44.15, which is equivalent to a conversion rate of approximately 22.6516 shares of common stock per $1,000 principal amount.

2048 Convertible Senior Notes
Accounting for Convertible Senior Notes — Upon issuance, the Convertible Senior Notes were separated into liability and equity components for accounting purposes. The carrying amounts of the liability component was initially calculated by measuring the fair value of similar liabilities that do not have an associated convertible feature. The carrying amount of the equity component representing the conversion option was determined by deducting the fair value of the liability component from the par value of the Convertible Senior Notes. This difference represented the debt discount that was amortized to interest expense over seven years, which was determined to be the expected life of the Convertible Senior Notes, using the effective interest rate method. The equity component was recorded in additional paid-in capital and was not remeasured as it continued to meet the conditions for equity classification.
Following the adoption of ASU 2020-06 as of January 1, 2022, the Company no longer records the conversion feature of its convertible senior notes in equity. Instead, the Company combined the previously separated equity component with the liability component, which together is now classified as debt, thereby eliminating the subsequent amortization of the debt discount as interest expense. As a result of the provisions of the amended guidance, the Company recorded a $100 million decrease to additional paid-in capital, a $57 million decrease to debt discount, a $57 million increase to retained earnings and a $14 million decrease to long-term deferred tax liabilities. For more information on the adoption of ASU 2020-06, refer to Note 2, Summary of Significant Accounting Policies.
Modification to Convertible Senior Notes — On February 22, 2022, the Company irrevocably elected to eliminate the right to settle conversions only in shares of the Company's common stock, such that any conversion after such date, the Company will pay cash per $1,000 principal amount and will settle in cash or a combination of cash and the Company's common stock for the remainder, if any, of the Company’s conversion obligation in excess of the aggregate principal amount.
Convertible Senior Notes Features — As of March 31, 2022, the Convertible Senior Notes were convertible, under certain circumstances, into cash or a combination of cash and the Company’s common stock at a price of $44.53 per common share, which is equivalent to a conversion rate of approximately 22.4563 shares of common stock per $1,000 principal amount of Convertible Senior Notes. The Convertible Senior Notes mature on June 1, 2048, unless earlier repurchased, redeemed or converted in accordance with their terms. The Convertible Senior notes are convertible at the option of the holders under certain circumstances. Prior to the close of business on the business day immediately preceding December 1, 2024, the Convertible
Senior Notes will be convertible only upon the occurrence of certain events and during certain periods, and thereafter during specified periods as follows:
•from December 1, 2024 until the close of business on the second scheduled trading day immediately before June 1, 2025; and
•from December 1, 2047 until the close of business on the second scheduled trading day immediately before the maturity date
The following table details the interest expense recorded in connection with the Convertible Senior Notes, due 2048:
($ In millions)For the three months ended March 31, 2022For the three months ended March 31, 2021
Contractual interest expense$4 $4 
Amortization of discount and deferred finance costs— 4 
Total$4 $8 
Effective Interest Rate0.76 %1.32 %
Repurchase Facility
On February 9, 2022, the Company entered into amendments to its existing Repurchase Facility to, among other things, (i) increase the size of the facility from $75 million to $150 million and (ii) replace LIBOR with term SOFR as the benchmark for the pricing rate. The Repurchase Facility has no commitment fee and borrowings will be drawn at SOFR + 1.30%. As of March 31, 2022, there were no outstanding borrowings.
Bilateral Letter of Credit Facilities
On April 29, 2022, the Company increased the size of the facilities by $100 million to provide additional liquidity, allowing for the issuance of up to $575 million of letters of credit.