Debt Instrument Covenant, Debt To Capitalization Ratio

No definition available.

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- Definition

Line of Credit Facility, Accordion Feature, Increase Limit

+ References

No definition available.

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

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

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- References

No definition available.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Debt (Narrative) (Details) - USD ($)			1 Months Ended			6 Months Ended	12 Months Ended
Debt (Narrative) (Details) - USD ($)	Oct. 15, 2019	Sep. 13, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Feb. 21, 2020	Sep. 06, 2019	Mar. 22, 2019	Mar. 01, 2018
Long-term Debt, Fiscal Year Maturity [Abstract]
Long-term borrowing maturities, 2020							$ 547,000,000
Long-term borrowing maturities, 2021							568,000,000
Long-term borrowing maturities, 2022							2,012,000,000
Long-term borrowing maturities, 2023							17,000,000
Long-term borrowing maturities, 2024							312,000,000
Debt instrument, change during period							500,000,000
Debt at face value			$ 11,076,000,000				11,576,000,000	$ 11,076,000,000
Issuance of debt							1,783,000,000	2,184,000,000	$ 3,508,000,000
Borrowings under commercial paper program			0				0	0
Revolving credit facility due January 2019 and October 2021 at weighted-average rate of 3.669% at year-end 2018
Long-term Debt, Fiscal Year Maturity [Abstract]
Amount outstanding under facility			0				0	0
Maximum borrowing capacity							5,000,000,000
Line of credit facility, optional overall capacity							$ 6,000,000,000
Debt to capitalization ratio							65.00%
Line of Credit \| Revolving credit facility due January 2019 and October 2021 at weighted-average rate of 3.669% at year-end 2018
Long-term Debt, Fiscal Year Maturity [Abstract]
Borrowing capacity			5,600,000,000				$ 5,700,000,000	5,600,000,000
Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed													$ 1,500,000,000
Loans Payable
Long-term Debt, Fiscal Year Maturity [Abstract]
Repayments of long-term debt				$ 250,000,000
Number of days maturities are generally limited to							3 years
Phillips 66 Partners LP \| Phillips 66 Partners
Long-term Debt, Fiscal Year Maturity [Abstract]
Long-term debt			2,998,000,000				$ 3,491,000,000	2,998,000,000
Phillips 66 Partners LP \| Phillips 66 Partners \| Revolving credit facility due January 2019 and October 2021 at weighted-average rate of 3.669% at year-end 2018
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt at face value			125,000,000				0	125,000,000
Amount outstanding under facility							0
Maximum borrowing capacity							750,000,000
Line of credit facility, optional overall capacity							1,000,000,000
Phillips 66 Partners LP \| Phillips 66 Partners \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed											$ 900,000,000
Commercial Paper
Long-term Debt, Fiscal Year Maturity [Abstract]
Maximum borrowing capacity							5,000,000,000
Commercial Paper \| Subsequent Event
Long-term Debt, Fiscal Year Maturity [Abstract]
Amount outstanding under facility										$ 650,000,000
2.450% Senior Notes Due December 15, 2024 \| Phillips 66 Partners LP \| Phillips 66 Partners \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed											$ 300,000,000
Senior notes, interest percent											2.45%
3.150% Senior Notes Due December 15, 2029 \| Phillips 66 Partners LP \| Phillips 66 Partners \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed											$ 600,000,000
Senior notes, interest percent											3.15%
2.646% Senior Notes Due February 2020 \| Phillips 66 Partners LP \| Phillips 66 Partners \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Short-term debt	$ 300,000,000
Senior Unsecured Term Loan \| Phillips 66 Partners LP \| Phillips 66 Partners \| Line of Credit
Long-term Debt, Fiscal Year Maturity [Abstract]
Short-term debt		$ 400,000,000
Proceeds from lines of credit						$ 400,000,000
Maximum borrowing capacity												$ 400,000,000
Revolving credit facility due January 2019 and October 2021 at weighted-average rate of 3.669% at year-end 2018 \| Phillips 66 Partners LP \| Phillips 66 Partners \| Line of Credit
Long-term Debt, Fiscal Year Maturity [Abstract]
Short-term debt							125,000,000
Floating-rate Notes Due April 2019 \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Repayments of long-term debt			300,000,000
Term loan due April 2020 at 2.699% and 3.422% at year-end 2019 and 2018, respectively \| Loans Payable
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt at face value			200,000,000				200,000,000	200,000,000
Long-term debt				$ 450,000,000
Floating-rate Senior Notes due February 2021 at 2.517% and 3.289% at year-end 2019 and 2018, respectively \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed													500,000,000
Borrowing			500,000,000				500,000,000	500,000,000
3.900% Senior Notes due March 2028 \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed													$ 800,000,000
Borrowing			800,000,000				$ 800,000,000	800,000,000
Senior notes, interest percent							3.90%						3.90%
4.875% Senior Notes due November 2044 \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Debt issued and guaranteed													$ 200,000,000
Borrowing			1,700,000,000				$ 1,700,000,000	1,700,000,000
Senior notes, interest percent							4.875%						4.875%
Maximum \| Commercial Paper
Long-term Debt, Fiscal Year Maturity [Abstract]
Number of days maturities are generally limited to							90 days
London Interbank Offered Rate (LIBOR) \| Floating-rate Senior Notes due February 2021 at 2.517% and 3.289% at year-end 2019 and 2018, respectively \| Senior Notes
Long-term Debt, Fiscal Year Maturity [Abstract]
Basis spread on variable rate					0.60%
Senior Notes \| 2.646% Senior Notes Due February 2020 \| Phillips 66 Partners LP \| Phillips 66 Partners
Long-term Debt, Fiscal Year Maturity [Abstract]
Senior notes, interest percent	2.646%						2.646%
Equity Method Investee \| Floating-rate Advance Term Loan due December 2034 at 2.392%—related party \| Loans Payable
Long-term Debt, Fiscal Year Maturity [Abstract]
Issuance of debt							$ 25,000,000
Borrowing			$ 0				$ 25,000,000	$ 0