Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2018

Fair Value of Financial Instruments [Abstract]

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

	December 31, 2018				December 31, 2017
	Carrying		Estimated Fair		Carrying		Estimated Fair
	Amount		Value		Amount		Value
Assets:
Cash and cash equivalents	$	196	$	196	$	563	$	563
Investments in equity securities		137		137		-		-
Available-for-sale securities		93		93		252		252
Trading securities		11		11		37		37
Liabilities:
Contingent Value Right		-		-		2		2
Credit Facility		1,602		1,564		2,902		2,826
8% Senior Notes due 2019		155		146		1,922		1,637
7⅛% Senior Notes due 2020		121		100		1,192		897
5⅛% Senior Secured Notes due 2021		984		934		978		902
6⅞% Senior Notes due 2022		2,593		1,175		2,943		1,729
6¼% Senior Secured Notes due 2023		3,067		2,819		3,061		2,800
Junior-Priority Secured Notes due 2023		1,750		1,380		-		-
Junior-Priority Secured Notes due 2024		1,338		976		-		-
8⅝% Secured Notes due 2024		1,021		1,025		-		-
ABL Facility and other debt		734		734		611		611

Schedule of Interest Rate Swaps

						Asset (Liability)
	Notional Amount					Fair Value
Swap #	(in millions)		Fixed Interest Rate		Termination Date	(in millions)
1	$	200	2.515	%	August 30, 2019	$	-
2		200	2.613	%	August 30, 2019		-
3		300	2.738	%	August 30, 2020		(1)
4		300	2.892	%	August 30, 2020		(1)
5		300	2.363	%	January 27, 2021		2
6		200	2.368	%	January 27, 2021		1

Schedule of Pre-tax Gain (Loss) Recognized as a Component of Other Comprehensive Income

	Amount of Pre-Tax Gain (Loss)
	Recognized in OCI (Effective Portion)
Derivatives in Cash Flow Hedging	Year Ended December 31,
Relationships	2018		2017		2016
Interest rate swaps	$	17	$	2	$	(27)

Schedule of Effective Portion of the Pre-tax Loss Reclassified from AOCL into Interest Expense on the Consolidated Statements of Income

	Amount of Pre-Tax Loss Reclassified
	from AOCL into Income (Effective Portion)
Location of Loss Reclassified from	Year Ended December 31,
AOCL into Income (Effective Portion)	2018		2017		2016
Interest expense, net	$	2	$	30	$	54

Schedule of the Fair Value of Derivative Instruments in the Consolidated Balance Sheet

Asset Derivatives

Liability Derivatives

December 31, 2018

December 31, 2017

December 31, 2018

December 31, 2017

Balance

Balance

Balance

Balance

Sheet

Sheet

Sheet

Sheet

Location

Fair Value

Location

Fair Value

Location

Fair Value

Location

Fair Value

Derivatives

designated as

Other

Other

Other

Other

hedging

assets,

assets,

long-term

long-term

instruments

net

$

3

net

$

1

liabilities

$

2

liabilities

$

18