Debt - Components of Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Current maturities of long-term debt	$ 0	$ 67
Long-term debt	7,142	6,605
Total debt	7,142	6,672
Midstream
Debt Instrument [Line Items]
Total debt	1,753	981
Midstream \| Hess Midstream Operations LP
Debt Instrument [Line Items]
Term loan A facility	394	0
Midstream \| Hess Midstream Operations LP \| Revolving Credit Facility
Debt Instrument [Line Items]
Total Debt	32	0
Midstream \| Hess Infrastructure Partners (HIP)
Debt Instrument [Line Items]
Term loan A facility	0	194
Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	5,388	5,384
Capital lease obligations	0	269
Financing obligations associated with floating production system	0	40
Total debt	5,389	5,691
Hess Corporation \| Interest Rate Contract
Debt Instrument [Line Items]
Fair value adjustments - interest rate hedging	1	(2)
3.5% Due 2024 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	298	298
4.3% due 2027 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	992	992
7.9% Due 2029 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	463	463
7.3% Due 2031 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	628	627
7.1% Due 2033 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	537	537
6.0% Due 2040 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	741	740
5.6% Due 2041 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	1,235	1,234
5.8% Due 2047 \| Hess Corporation
Debt Instrument [Line Items]
Fixed-rate public notes	494	493
5.6% Due 2026 \| Midstream \| Hess Midstream Operations LP
Debt Instrument [Line Items]
Fixed-rate public notes	787	0
5.6% Due 2026 \| Midstream \| Hess Infrastructure Partners (HIP)
Debt Instrument [Line Items]
Fixed-rate public notes	0	787
5.1% Due 2028 \| Midstream \| Hess Midstream Operations LP
Debt Instrument [Line Items]
Fixed-rate public notes	$ 540	$ 0

Interest rate hedging fair value accumulated adjustments.

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- Definition

The noncurrent amount of debt outstanding for the leased floating production system at Tubular Bells Project as of the balance sheet date.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of loans from a bank with maturities initially due after one year or beyond the normal operating cycle if longer.

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Amount of long-term debt and lease obligation, including portion classified as current.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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