Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Estimated Fair Value of Financial Instruments, by Balance Sheet Grouping

The fair value of financial instruments has been estimated by the Company using available market information as of March 31, 2022 and December 31, 2021, and valuation methodologies considered appropriate. The estimates presented in the table below are not necessarily indicative of amounts the Company could realize in a current market exchange (in millions):

	March 31, 2022				December 31, 2021
	Carrying		Estimated Fair		Carrying		Estimated Fair
	Amount		Value		Amount		Value
Assets:
Cash and cash equivalents	$	460	$	460	$	507	$	507
Investments in equity securities		135		135		144		144
Available-for-sale debt securities		177		177		178		178
Trading securities		12		12		13		13
Liabilities:
6⅝% Senior Secured Notes due 2025		—		—		1,434		1,517
8% Senior Secured Notes due 2026		2,079		2,194		2,078		2,210
8% Senior Secured Notes due 2027		693		744		692		758
5⅝% Senior Secured Notes due 2027		1,823		1,939		1,819		2,011
6⅞% Senior Notes due 2028		759		698		759		758
6% Senior Secured Notes due 2029		861		911		860		966
5¼% Senior Secured Notes due 2030		1,441		1,477		—		—
4¾% Senior Secured Notes due 2031		1,090		1,033		1,090		1,108
6⅞% Junior-Priority Secured Notes due 2029		1,629		1,743		1,625		1,823
6⅛% Junior-Priority Secured Notes due 2030		1,354		1,343		1,352		1,431
ABL Facility and other debt		48		48		32		32