Accounts Payable and Accrued and Other Current Liabilities - Accrued and Other Current Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Accrual for Taxes Other than Income Taxes, Current	$ 37	$ 19
Interest Payable, Current	39	45
Accrued Compensation And Related Liabilities Current	55	39
Gathering and transportation	6	7
Gathering and transportation related to exited areas	26	30
Operating Lease, Liability, Current	60	0
Other Accrued Liabilities, Current	28	38
Accrued liabilities and other liabilities	$ 251	$ 178

Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Carrying value as of the balance sheet date of accrued amounts payable for employee related compensation and benefits.

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Carrying value as of the balance sheet date of obligations incurred and payable for oil and gas gathering and transportation activities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of obligations incurred and payable for oil and gas gathering and transportation activities related to exited areas. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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