Debt (Tables)

12 Months Ended

Dec. 31, 2018

Debt Disclosure [Abstract]

Long-term debt

Long-term debt balances, including obligations for capital leases, and associated interest rates as of December 31, 2018 were as follows:

	December 31,
	2018			2017
	(in millions)
Senior notes with a rate of 4.250%, due 2024	$	1,000		$	1,000
Senior notes with a rate of 4.625%, due 2025	900			900
Senior notes with a rate of 5.125%, due 2026	1,500			—
Senior notes with a rate of 4.875%, due 2027	600			600
Senior secured term loan facility with a rate of 4.26%, due 2023	3,119			3,929
Capital lease obligations with an average rate of 6.43%, due 2021 to 2030	225			233
Other debt with an average rate of 3.08%, due 2026	17			21
	7,361			6,683
Less: unamortized deferred financing costs and discount	(79		)	(81		)
Less: current maturities of long-term debt(1)	(16		)	(46		)
	$	7,266		$	6,556

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⁽¹⁾  Balance as of December 31, 2017 is net of unamortized deferred financing costs and discount attributable to current maturities of long-term debt.

Debt maturities

The contractual maturities of long-term debt as of December 31, 2018, were as follows:

Year	(in millions)
2019	$	16
2020	17
2021	18
2022	19
2023	3,139
Thereafter	4,152
	$	7,361