Accrued Expenses and Other Long-Term Liabilities

12 Months Ended

Dec. 31, 2020

9. 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,
	2020		2019		2020		2019
Operating lease liabilities (see Note 6)	$	285	$	331	$	885	$	959
Liability for unrecognized tax benefits (see Note 16)	—		—		859		954
Defined benefit plan liabilities (see Note 14)	45		37		878		834
Repatriation tax liability (see Note 16) (a)	—		—		422		508
Environmental liabilities	59		27		272		319
Wage and other employee-related liabilities	210		292		124		121
Accrued interest expense	99		83		—		—
Contract liabilities from contracts with customers (see Note 18)	56		55		—		—
Environmental credit obligations (see Note 20)	159		31		—		—



Other accrued liabilities	81		93		180		192
Accrued expenses and other long-term liabilities	$	994	$	949	$	3,620	$	3,887

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(a)The current portion of repatriation tax liability is included in income taxes payable and was $54 million as of December 31, 2020 and 2019.