Accrued Expenses and Other Long-Term Liabilities (Tables)

12 Months Ended

Dec. 31, 2017

Accrued Expenses and Other Long-Term Liabilities [Abstract]

Accrued expenses and other long-term liabilities

Accrued expenses and other long-term liabilities consisted of the following (in millions):

	Accrued Expenses				Other Long- Term Liabilities
	December 31,				December 31,
	2017		2016		2017		2016
Defined benefit plan liabilities (see Note 12)	$	33	$	32	$	776	$	742
Wage and other employee-related liabilities	278		225		111		103
Uncertain income tax position liabilities (see Note 14)	—		—		723		465
Repatriation tax liability (see Note 14)	—		—		597		—
Environmental liabilities	30		29		232		223
Environmental credit obligations (see Note 18)	152		214		—		—
Accrued interest expense	105		104		—		—
Other accrued liabilities	114		90		290		211
Accrued expenses and other long-term liabilities	$	712	$	694	$	2,729	$	1,744