$MUSA
Murphy USA Inc Stock $musa

$musa Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000157351622000006 Filed on February 17, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$4.767B	$17.36B	$2.861B
YoY Change	66.63%	54.12%	-17.32%
Cost Of Revenue	$4.277B	$15.51B	$2.544B
YoY Change	68.11%	57.94%	-19.78%
Gross Profit	$490.0M	$1.849B	$316.7M
YoY Change	54.72%	28.13%	9.66%
Gross Profit Margin	10.28%	10.65%	11.07%
Selling, General & Admin	$65.30M	$193.6M	$45.30M
YoY Change	44.15%	13.15%	6.34%
% of Gross Profit	13.33%	10.47%	14.3%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$55.10M	$211.6M	$41.50M
YoY Change	32.77%	32.25%	8.07%
% of Gross Profit	11.24%	11.44%	13.1%
Operating Expenses	$329.5M	$193.6M	$222.5M
YoY Change	48.09%	13.15%	3.34%
Operating Profit	$160.5M	$604.0M	$94.20M
YoY Change	70.38%	8.05%	28.16%
Interest Expense	-$20.20M	$82.40M	-$12.50M
YoY Change	61.6%	60.94%	4.17%
% of Operating Profit	-12.59%	13.64%	-13.27%
Other Income/Expense, Net	$200.0K	-$82.10M	$800.0K
YoY Change	-75.0%	64.53%	100.0%
Pretax Income	$140.9M	$521.9M	$80.70M
YoY Change	74.6%	2.51%	30.37%
Income Tax	$32.10M	$125.0M	$19.70M
% Of Pretax Income	22.78%	23.95%	24.41%
Net Earnings	$108.8M	$396.9M	$61.00M
YoY Change	78.36%	2.8%	28.15%
Net Earnings / Revenue	2.28%	2.29%	2.13%
Basic Earnings Per Share		$15.14
Diluted Earnings Per Share	$4.222M	$14.92	$2.148M
COMMON SHARES
Basic Shares Outstanding		26.21M shares
Diluted Shares Outstanding		26.60M shares

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$256.4M	$256.4M	$163.6M
YoY Change	56.72%	56.72%	-41.63%
Cash & Equivalents	$256.4M	$256.4M	$163.6M
Short-Term Investments	$0.00
Other Short-Term Assets	$23.40M	$23.40M	$13.70M
YoY Change	70.8%	70.8%	-54.33%
Inventory	$292.3M	$292.3M	$279.1M
Prepaid Expenses	$23.40M		$13.70M
Receivables	$195.7M	$195.7M	$168.8M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$767.8M	$767.8M	$625.2M
YoY Change	22.81%	22.81%	-12.04%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.798B	$2.798B	$2.015B
YoY Change	38.82%	38.82%	11.51%
Goodwill	$328.0M		$0.00
YoY Change
Intangibles	$140.7M		$34.60M
YoY Change	306.65%
Long-Term Investments
YoY Change
Other Assets	$14.10M	$14.10M	$10.60M
YoY Change	33.02%	-68.81%	-93.73%
Total Long-Term Assets	$3.280B	$3.280B	$2.061B
YoY Change	59.2%	59.2%	4.26%
TOTAL ASSETS
Total Short-Term Assets	$767.8M	$767.8M	$625.2M
Total Long-Term Assets	$3.280B	$3.280B	$2.061B
Total Assets	$4.048B	$4.048B	$2.686B
YoY Change	50.73%	50.73%	-0.06%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$392.5M	$392.5M	$261.0M
YoY Change	50.38%	50.38%	-7.05%
Accrued Expenses	$267.8M	$267.8M	$210.1M
YoY Change	27.46%	27.46%	13.32%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$15.00M	$15.00M	$51.20M
YoY Change	-70.7%	-70.7%	31.96%
Total Short-Term Liabilities	$675.3M	$675.3M	$531.1M
YoY Change	27.15%	27.15%	5.17%
LONG-TERM LIABILITIES
Long-Term Debt	$1.800B	$1.800B	$951.2M
YoY Change	89.25%	89.25%	-4.81%
Other Long-Term Liabilities	$448.1M	$448.1M	$177.6M
YoY Change	152.31%	152.31%	17.38%
Total Long-Term Liabilities	$2.248B	$2.248B	$1.129B
YoY Change	99.17%	99.17%	-1.89%
TOTAL LIABILITIES
Total Short-Term Liabilities	$675.3M	$675.3M	$531.1M
Total Long-Term Liabilities	$2.248B	$2.248B	$1.129B
Total Liabilities	$3.241B	$3.241B	$1.902B
YoY Change	70.44%	70.44%	0.92%
SHAREHOLDERS EQUITY
Retained Earnings	$2.112B		$1.743B
YoY Change	21.19%		27.9%
Common Stock	$500.0K		$500.0K
YoY Change	0.0%		0.0%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$1.839B		$1.491B
YoY Change	23.37%		35.56%
Treasury Stock Shares	21.83M shares		19.52M shares
Shareholders Equity	$807.2M	$807.2M	$784.1M
YoY Change
Total Liabilities & Shareholders Equity	$4.048B	$4.048B	$2.686B
YoY Change	50.73%	50.73%	-0.06%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$108.8M	$396.9M	$61.00M
YoY Change	78.36%	2.8%	28.15%
Depreciation, Depletion And Amortization	$55.10M	$211.6M	$41.50M
YoY Change	32.77%	32.25%	8.07%
Cash From Operating Activities	$150.4M	$737.4M	$95.90M
YoY Change	56.83%	30.81%	55.43%
INVESTING ACTIVITIES
Capital Expenditures	-$63.10M	-$274.7M	-$61.30M
YoY Change	2.94%	19.07%	19.96%
Acquisitions		$641.1M
YoY Change
Other Investing Activities	$2.600M	$1.800M	$300.0K
YoY Change	766.67%	5.88%
Cash From Investing Activities	-$60.50M	-$914.2M	-$61.00M
YoY Change	-0.82%	307.58%	19.37%
FINANCING ACTIVITIES
Cash Dividend Paid		$27.30M
YoY Change		295.65%
Common Stock Issuance & Retirement, Net		$355.0M
YoY Change		-11.16%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-134.8M	$269.6M	-188.8M
YoY Change	-28.6%	-159.11%	-958.18%
NET CHANGE
Cash From Operating Activities	150.4M	$737.4M	95.90M
Cash From Investing Activities	-60.50M	-$914.2M	-61.00M
Cash From Financing Activities	-134.8M	$269.6M	-188.8M
Net Change In Cash	-44.90M	$92.80M	-153.9M
YoY Change	-70.83%	-179.52%	-572.09%
FREE CASH FLOW
Cash From Operating Activities	$150.4M	$737.4M	$95.90M
Capital Expenditures	-$63.10M	-$274.7M	-$61.30M
Free Cash Flow	$213.5M	$1.012B	$157.2M
YoY Change	35.81%	27.4%	39.36%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2021	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2021	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2021	dei	Document Type DocumentType	10-K
CY2021	dei	Document Annual Report DocumentAnnualReport	true
CY2021	dei	Document Period End Date DocumentPeriodEndDate	2021-12-31
CY2021	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2021	dei	Document Transition Report DocumentTransitionReport	false
CY2021	dei	Entity File Number EntityFileNumber	001-35914
CY2021	dei	Entity Registrant Name EntityRegistrantName	MURPHY USA INC.
CY2021	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	46-2279221
CY2021	dei	Entity Address Address Line1 EntityAddressAddressLine1	200 Peach Street
CY2021	dei	Entity Address City Or Town EntityAddressCityOrTown	El Dorado,
CY2021	dei	Entity Address State Or Province EntityAddressStateOrProvince	AR
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CY2021	dei	City Area Code CityAreaCode	870
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CY2021	dei	Security12b Title Security12bTitle	Common Stock, $0.01 Par Value
CY2021	dei	Trading Symbol TradingSymbol	MUSA
CY2021	dei	Security Exchange Name SecurityExchangeName	NYSE
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CY2019	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-66100000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	521900000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	509100000	USD
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26604000	shares
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	202400000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	125000000.0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47600000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	15.14
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.25
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.90
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	14.92
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.08
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.86
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26210000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29132000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31594000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29526000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31858000	shares
CY2021	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	2041700000	USD
CY2020	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	1760000000	USD
CY2019	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	1933300000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2021	musa	Other Comprehensive Income Loss Cash Flow Hedge Fair Value Portion Attributableto Parent OtherComprehensiveIncomeLossCashFlowHedgeFairValuePortionAttributabletoParent	0	USD
CY2020	musa	Other Comprehensive Income Loss Cash Flow Hedge Fair Value Portion Attributableto Parent OtherComprehensiveIncomeLossCashFlowHedgeFairValuePortionAttributabletoParent	0	USD
CY2019	musa	Other Comprehensive Income Loss Cash Flow Hedge Fair Value Portion Attributableto Parent OtherComprehensiveIncomeLossCashFlowHedgeFairValuePortionAttributabletoParent	100000	USD
CY2021	musa	Other Comprehensive Income Loss Cash Flow Hedge Realized Gain Loss Before Reclassificationand Tax OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationandTax	-100000	USD
CY2020	musa	Other Comprehensive Income Loss Cash Flow Hedge Realized Gain Loss Before Reclassificationand Tax OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationandTax	-900000	USD
CY2019	musa	Other Comprehensive Income Loss Cash Flow Hedge Realized Gain Loss Before Reclassificationand Tax OtherComprehensiveIncomeLossCashFlowHedgeRealizedGainLossBeforeReclassificationandTax	200000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	100000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	-3400000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Before Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax	1000000.0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-100000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	-900000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax	200000	USD
CY2021	musa	Other Comprehensive Income Loss Cash Flow Hedge Amortization Of Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeAmortizationOfGainLossReclassificationBeforeTax	-900000	USD
CY2020	musa	Other Comprehensive Income Loss Cash Flow Hedge Amortization Of Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeAmortizationOfGainLossReclassificationBeforeTax	0	USD
CY2019	musa	Other Comprehensive Income Loss Cash Flow Hedge Amortization Of Gain Loss Reclassification Before Tax OtherComprehensiveIncomeLossCashFlowHedgeAmortizationOfGainLossReclassificationBeforeTax	0	USD
CY2021	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	1000000.0	USD
CY2020	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-3400000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	900000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	300000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-800000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	200000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	700000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2600000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	700000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	397600000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	383500000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	155500000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	212600000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	161000000.0	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	152200000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	19000000.0	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	2500000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	23700000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-14800000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2500000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2300000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2100000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1500000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	1300000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	100000	USD
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-82800000	USD
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	13100000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	48700000	USD
CY2021	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	25100000	USD
CY2020	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	26200000	USD
CY2019	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	14500000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	737400000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	563700000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	313300000	USD
CY2021	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	274700000	USD
CY2020	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	230700000	USD
CY2019	us-gaap	Payments To Acquire Productive Assets PaymentsToAcquireProductiveAssets	204800000	USD
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	641100000	USD
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2019	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	3400000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	8100000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2500000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1800000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1700000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	800000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-914200000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-224300000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-203100000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	355000000.0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	399600000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	165800000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	27300000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	6900000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	0	USD
CY2021	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	224300000	USD
CY2020	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	38900000	USD
CY2019	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	573400000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	892800000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	743800000	USD
CY2021	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2020	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0	USD
CY2019	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	10400000	USD
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	9900000	USD
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0	USD
CY2019	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	4100000	USD
CY2021	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	6700000	USD
CY2020	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	10700000	USD
CY2019	us-gaap	Payments Related To Tax Withholding For Share Based Compensation PaymentsRelatedToTaxWithholdingForShareBasedCompensation	4500000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	269600000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-456100000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-14400000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	92800000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-116700000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	95800000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	163600000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	280300000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	184500000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	256400000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	163600000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	280300000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	807300000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	700000	USD
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	165800000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	0	USD
CY2019	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4500000	USD
CY2019	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	10500000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	803000000.0	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	-2600000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.25
CY2020	us-gaap	Dividends Common Stock DividendsCommonStock	6900000	USD
CY2020	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	0	USD
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	399600000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-500000	USD
CY2020	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	10700000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14200000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	784100000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTax	700000	USD
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.04
CY2021	us-gaap	Dividends Common Stock DividendsCommonStock	27300000	USD
CY2021	us-gaap	Dividends Share Based Compensation DividendsShareBasedCompensation	0	USD
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	355000000.0	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	100000	USD
CY2021	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	6700000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	14400000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	807200000	USD
CY2013Q3	musa	Percentage Of Shares Of Stock Distributed PercentageOfSharesOfStockDistributed	1
CY2013Q3	us-gaap	Sale Of Stock Percentage Of Ownership After Transaction SaleOfStockPercentageOfOwnershipAfterTransaction	0
CY2021Q4	us-gaap	Number Of Stores NumberOfStores	1679	store
CY2021Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	27	state
CY2021	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	2000000000	USD
CY2020	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	1800000000	USD
CY2019	us-gaap	Excise And Sales Taxes ExciseAndSalesTaxes	1900000000	USD
CY2021	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2100000	USD
CY2020	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1400000	USD
CY2019	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	1400000	USD
CY2021	musa	Likekind Exchange Transaction Required Termto Facilitate Forward Agreement Before Proceedsare Reclassifiedas Available Cash LikekindExchangeTransactionRequiredTermtoFacilitateForwardAgreementBeforeProceedsareReclassifiedasAvailableCash	P180D
CY2021	us-gaap	Property Plant And Equipment Impairment PropertyPlantAndEquipmentImpairment	IMPAIRMENT OF ASSETS – Long-lived assets, which include property and equipment, and finite-lived and indefinite-lived intangible assets, are tested for recoverability whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. A long-lived asset is not recoverable if its carrying amount exceeds the sum of the undiscounted cash flows expected to result from its use and eventual disposition. If a long-lived asset is not recoverable, an impairment loss is recognized for the amount by which the carrying amount of the long-lived asset exceeds its fair value, with fair value determined based on discounted estimated net cash flows or other appropriate methods.
CY2021	us-gaap	Use Of Estimates UseOfEstimates	USE OF ESTIMATES – In preparing the financial statements of the Company in conformity with U.S. GAAP, management has made a number of estimates and assumptions related to the reporting of assets, liabilities, revenues, and expenses and the disclosure of contingent assets and liabilities. Actual results may differ from the estimates. On an ongoing basis, we review our estimates based on currently available information. Changes in facts and circumstances may result in revised estimates.
CY2021	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	17360500000	USD
CY2020	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	11264300000	USD
CY2019	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	14034600000	USD
CY2021	musa	Contract With Customer Loyalty Program Expiration Period ContractWithCustomerLoyaltyProgramExpirationPeriod	P90D
CY2021Q4	us-gaap	Fifo Inventory Amount FIFOInventoryAmount	339800000	USD
CY2020Q4	us-gaap	Fifo Inventory Amount FIFOInventoryAmount	223000000.0	USD
CY2021Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	173100000	USD
CY2020Q4	us-gaap	Retail Related Inventory Merchandise RetailRelatedInventoryMerchandise	152000000.0	USD
CY2021Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	228000000.0	USD
CY2020Q4	us-gaap	Inventory Lifo Reserve InventoryLIFOReserve	101300000	USD
CY2021Q4	musa	Total Inventory TotalInventory	284900000	USD
CY2020Q4	musa	Total Inventory TotalInventory	273700000	USD
CY2021	us-gaap	Depreciation Depreciation	211600000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	1867600000	USD
CY2021Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	7400000	USD
CY2020Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	5400000	USD
CY2021Q4	us-gaap	Inventory Net InventoryNet	292300000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	279100000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	3751800000	USD
CY2021Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset After Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization	2378400000	USD
CY2020Q4	us-gaap	Property Plant And Equipment And Finance Lease Right Of Use Asset Before Accumulated Depreciation And Amortization PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization	3059000000	USD
CY2020	us-gaap	Depreciation Depreciation	160000000	USD
CY2019	us-gaap	Depreciation Depreciation	151200000	USD
CY2021Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	0	USD
CY2020Q4	us-gaap	Goodwill Goodwill	0	USD
CY2021	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	328000000.0	USD
CY2021Q4	us-gaap	Goodwill Goodwill	328000000.0	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	30500000	USD
CY2021Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	25100000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	39600000	USD
CY2020Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	34600000	USD
CY2021Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	115600000	USD
CY2021Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	115600000	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	USD
CY2020Q4	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	0	USD
CY2021Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	146100000	USD
CY2021Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	140700000	USD
CY2020Q4	us-gaap	Intangible Assets Gross Excluding Goodwill IntangibleAssetsGrossExcludingGoodwill	39600000	USD
CY2020Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	34600000	USD
CY2021Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	392500000	USD
CY2020Q4	us-gaap	Accounts Payable Trade Current AccountsPayableTradeCurrent	261000000.0	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	93600000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	84100000	USD
CY2021Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	46200000	USD
CY2020Q4	us-gaap	Accrued Insurance Current AccruedInsuranceCurrent	30300000	USD
CY2021Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	41400000	USD
CY2020Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current AccrualForTaxesOtherThanIncomeTaxesCurrent	31700000	USD
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	36500000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	32500000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	50100000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	31500000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	660300000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	471100000	USD
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	11100000	USD
CY2020Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	4400000	USD
CY2021Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	1815100000	USD
CY2020Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	1002400000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	15000000.0	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	51200000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1800100000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	951200000	USD
CY2021Q4	musa	Debt Instrument Covenant Compliance Fixed Charge Coverage Ratio DebtInstrumentCovenantComplianceFixedChargeCoverageRatio	2.2
CY2021Q4	musa	Line Of Credit Facility Dividend Restriction Shortfall Of Net Income And Retained Earnings LineOfCreditFacilityDividendRestrictionShortfallOfNetIncomeAndRetainedEarnings	112700000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	35100000	USD
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	32800000	USD
CY2021	musa	Asset Retirement Obligation Additional Acquired AssetRetirementObligationAdditionalAcquired	1200000	USD
CY2020	musa	Asset Retirement Obligation Additional Acquired AssetRetirementObligationAdditionalAcquired	0	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2500000	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2300000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	1000000.0	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	800000	USD
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1400000	USD
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	800000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	39200000	USD
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	35100000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	521900000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	509100000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	202400000	USD
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	86200000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	96000000.0	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	15600000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	14400000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4700000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	21700000	USD
CY2021	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	24400000	USD
CY2020	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	22300000	USD
CY2019	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	10300000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	125000000.0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47600000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	109600000	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	106900000	USD
CY2019	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	42500000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	19200000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	17500000	USD
CY2019	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	8600000	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2200000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	1900000	USD
CY2019	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	2300000	USD
CY2021	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1600000	USD
CY2020	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	500000	USD
CY2019	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-1200000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	125000000.0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123000000.0	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47600000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	5200000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	4500000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	6300000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	8600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	8000000.0	USD
CY2021Q4	musa	Deferred Tax Asset Operating Lease Right Of Use Asset DeferredTaxAssetOperatingLeaseRightOfUseAsset	89700000	USD
CY2020Q4	musa	Deferred Tax Asset Operating Lease Right Of Use Asset DeferredTaxAssetOperatingLeaseRightOfUseAsset	31600000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	11800000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	7200000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	121600000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	51300000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	285400000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	213200000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	31700000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	20200000	USD
CY2021Q4	musa	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	88000000.0	USD
CY2020Q4	musa	Deferred Tax Liabilities Operating Lease Right Of Use Asset DeferredTaxLiabilitiesOperatingLeaseRightOfUseAsset	31000000.0	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	12400000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5300000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	417500000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	269700000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	295900000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	218400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	400000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	600000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	300000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	100000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	300000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	200000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	0	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	500000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	400000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	400000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	300000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	4900000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	2200000	USD
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Amount EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitAmount	100000	USD
CY2021	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14400000	USD
CY2020	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	14300000	USD
CY2019	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	10500000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3000000.0	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	3000000.0	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2200000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	21100000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y9M18D
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	300000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	700000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	100000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	322700	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	79.60
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	85500	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	126.71
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	28250	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	68.88
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	13850	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	105.84
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	366100	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	90.44
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P4Y2M12D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	39800000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	167950	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	70.13
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P3Y
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	21700000	USD
CY2021Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Outstanding Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions	366100	shares
CY2021	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2	P4Y2M12D
CY2021Q4	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	167950	shares
CY2021	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P3Y
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	600000	USD
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	2398477	shares
CY2021	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	355000000	USD
CY2021	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	148.00
CY2019	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	1898023	shares
CY2019	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	165800000	USD
CY2019	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	87.35
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3338028	shares
CY2020	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	399600000	USD
CY2020	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	119.70
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26210000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29132000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31594000	shares
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	15.14
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.25
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.90
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	26210000	shares
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	29132000	shares
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	31594000	shares
CY2021	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	394000	shares
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	394000	shares
CY2019	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	264000	shares
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	26604000	shares
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	29526000	shares
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	31858000	shares
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	14.92
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.08
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.86
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	82062	shares
CY2020	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	95737	shares
CY2019	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	95443	shares
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	120400000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	96500000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	26900000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	70800000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	49100000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	56600000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	18900000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-4900000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	33400000	USD
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-11100000	USD
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	51700000	USD
CY2019	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6100000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3600000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-16600000	USD
CY2019	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	3300000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	102900000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	8300000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-5900000	USD
CY2021	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	-8700000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	8800000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes Payable Net Of Income Taxes Receivable IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable	0	USD
CY2021	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	-82800000	USD
CY2020	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	13100000	USD
CY2019	us-gaap	Increase Decrease In Operating Capital IncreaseDecreaseInOperatingCapital	48700000	USD
CY2021	musa	General Liability Insurance Deductible GeneralLiabilityInsuranceDeductible	3000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	44400000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	44000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	43600000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	42600000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	41900000	USD
CY2021	us-gaap	Operating Lease Expense OperatingLeaseExpense	48700000	USD
CY2020	us-gaap	Operating Lease Expense OperatingLeaseExpense	24900000	USD
CY2019	us-gaap	Operating Lease Expense OperatingLeaseExpense	21600000	USD
CY2021	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	Contingencies <div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company’s operations and earnings have been and may be affected by various forms of governmental action. Examples of such governmental action include, but are by no means limited to: tax increases and retroactive tax claims; import and export controls; price controls; allocation of supplies of crude oil and petroleum products and other goods; laws and regulations intended for the promotion of safety and the protection and/or remediation of the environment; governmental support for other forms of energy; and laws and regulations affecting the Company’s relationships with employees, suppliers, customers, stockholders and others. Because governmental actions are often motivated by political considerations, may be taken without full consideration of their consequences, and may </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">be taken in response to actions of other governments, it is not practical to attempt to predict the likelihood of such actions, the form the actions may take or the effect such actions may have on the Company.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">ENVIRONMENTAL MATTERS AND LEGAL MATTERS — Murphy USA is subject to numerous federal, state and local laws and regulations dealing with the environment. Violation of such environmental laws, regulations and permits can result in the imposition of significant civil and criminal penalties, injunctions and other sanctions. A discharge of hazardous substances into the environment could, to the extent such event is not insured, subject the </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Company to substantial expense, including both the cost to comply with applicable regulations and claims by neighboring landowners and other third parties for any personal injury, property damage and other losses that might result.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company currently owns or leases, and has in the past owned or leased, properties at which hazardous substances have been or are being handled. Although the Company believes it has used operating and disposal practices that were standard in the industry at the time, hazardous substances may have been disposed of or released on or under the properties owned or leased by the Company or on or under other locations where they have been taken for disposal. In addition, many of these properties have been operated by third parties whose management of hazardous substances was not under the Company’s control. Under existing laws, the Company could be required to remediate contaminated property (including contaminated groundwater) or to perform remedial actions to prevent future contamination. Certain of these contaminated properties are in various stages of negotiation, investigation, and/or cleanup, and the Company is investigating the extent of any related liability and the availability of applicable defenses. With the sale of the U.S. refineries in 2011, Murphy Oil retained certain liabilities related to environmental matters. Murphy Oil also obtained insurance covering certain levels of environmental exposures. With respect to the previously owned refinery properties, Murphy Oil retained those liabilities in the Separation and Distribution agreement that was entered into related to the separation on August 30, 2013. With respect to any remaining potential liabilities, the Company believes costs related to these properties will not have a material adverse effect on Murphy USA’s net income, financial position or liquidity in a future period.</span></div><div style="text-indent:45pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Certain environmental expenditures are likely to be recovered by the Company from other sources, primarily environmental funds maintained by certain states. Since no assurance can be given that future recoveries from other sources will occur, the Company has not recorded a benefit for likely recoveries at December 31, 2021, however certain jurisdictions provide reimbursement for these expenses which have been considered in recording the net exposure. The U.S. Environmental Protection Agency (EPA) currently considers the Company a Potentially Responsible Party (PRP) at one Superfund site. As to the site, the potential total cost to all parties to perform necessary remedial work at this site may be substantial. However, based on current negotiations and available information, the Company believes that it is a de minimis party as to ultimate responsibility at the Superfund site. Accordingly, the Company has not recorded a liability for remedial costs at the Superfund site at December 31, 2021. The Company could be required to bear a pro rata share of costs attributable to nonparticipating PRPs or could be assigned additional responsibility for remediation at this site or other Superfund sites. The Company believes that its share of the ultimate costs to clean-up this site will be immaterial and will not have a material adverse effect on its net income, financial position or liquidity in a future period.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Based on information currently available to the Company, the amount of future remediation costs to be incurred to address known contamination sites is not expected to have a material adverse effect on the Company’s future net income, cash flows or liquidity. However, there is the possibility that additional environmental expenditures could be required to address contamination, including as a result of discovering additional contamination or the imposition of new or revised requirements applicable to known contamination.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Murphy USA is engaged in a number of other legal proceedings, all of which the Company considers routine and incidental to its business. Currently, the City of Charleston, South Carolina and the state of Delaware have filed lawsuits against energy companies, including the Company. These lawsuits allege damages as a result of climate change and the plaintiffs are seeking unspecified damages and abatement under various tort theories. At this early stage, the ultimate outcome of these matters remain uncertain, and neither the likelihood of an unfavorable outcome nor the ultimate liability, if any, can be determined. Based on information currently available to the Company, the ultimate resolution of those other legal matters is not expected to have a material adverse effect on the Company’s net income, financial condition or liquidity in a future period.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">INSURANCE — The Company maintains insurance coverage at levels that are customary and consistent with industry standards for companies of similar size. Murphy USA maintains statutory workers compensation insurance with a deductible of $1.0 million per occurrence, general liability insurance with a deductible of $3.0 million per </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">occurrence, and auto liability insurance with a deductible of $0.3 million per occurrence. As of December 31, 2021, there were a number of outstanding claims that are of a routine nature. The estimated incurred but unpaid liabilities relating to these claims are included in Trade account payables and accrued liabilities on the Consolidated Balance Sheets. While the ultimate outcome of these claims cannot presently be determined, management believes that the accrued liability of $39.4 million will be sufficient to cover the related liability and that the ultimate disposition of these claims will have no material effect on the Company’s financial position and results of operations.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has obtained insurance coverage as appropriate for the business in which it is engaged, but may incur losses that are not covered by insurance or reserves, in whole or in part, and such losses could adversely affect our results of operations and financial position.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">TAX MATTERS — Murphy USA is subject to extensive tax liabilities imposed by multiple jurisdictions, including income taxes, indirect taxes (excise/duty, sales/use and gross receipts taxes), payroll taxes, franchise taxes, withholding taxes and ad valorem taxes. New tax laws and regulations and changes in existing tax laws and regulations are continuously being enacted or proposed that could result in increased expenditures for tax liabilities in the future. Many of these liabilities are subject to periodic audits by the respective taxing authority. Subsequent changes to our tax liabilities because of these audits may subject us to interest and penalties.</span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">OTHER MATTERS — In the normal course of its business, the Company is required under certain contracts with various governmental authorities and others to provide financial guarantees or letters of credit that may be drawn upon if the Company fails to perform under those contracts. At December 31, 2021, the Company had contingent liabilities of $10.1 million on outstanding letters of credit. The Company has not accrued a liability in its balance sheet related to these financial guarantees and letters of credit because it is believed that the likelihood of having these drawn is remote.</span></div>
CY2021	musa	Number Of Superfund Sites For Which Company May Be Liable NumberOfSuperfundSitesForWhichCompanyMayBeLiable	1	superfund_site
CY2021	musa	Workers Compensation Insurance Deductible WorkersCompensationInsuranceDeductible	1000000	USD
CY2021	musa	Auto Liability Insurance Deductible AutoLiabilityInsuranceDeductible	300000	USD
CY2021Q4	us-gaap	Workers Compensation Liability Current And Noncurrent WorkersCompensationLiabilityCurrentAndNoncurrent	39400000	USD
CY2021Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	10100000	USD
CY2021Q4	musa	Lease Number Of Renewal Options LeaseNumberOfRenewalOptions	1	number_of_renewal_option
CY2021	musa	Lessee Operating Lease Number Of Contracts With Restrictive Covenants LesseeOperatingLeaseNumberOfContractsWithRestrictiveCovenants	102	superfund_site
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	419200000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	147700000	USD
CY2021Q4	musa	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	16700000	USD
CY2020Q4	musa	Finance Lease Right Of Use Asset Accumulated Depreciation FinanceLeaseRightOfUseAssetAccumulatedDepreciation	2800000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	137300000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	2600000	USD
CY2021Q4	musa	Lease Rightof Use Asset LeaseRightofUseAsset	556500000	USD
CY2020Q4	musa	Lease Rightof Use Asset LeaseRightofUseAsset	150300000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	18100000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7800000	USD
CY2021Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	11000000.0	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	1200000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	408900000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	142500000	USD
CY2021Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	130600000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	900000	USD
CY2021Q4	musa	Lease Liability LeaseLiability	568600000	USD
CY2020Q4	musa	Lease Liability LeaseLiability	152400000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	43100000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	16600000	USD
CY2019	us-gaap	Operating Lease Cost OperatingLeaseCost	14500000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	14800000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1300000	USD
CY2019	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	1200000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	8200000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	100000	USD
CY2019	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	100000	USD
CY2021	us-gaap	Lease Cost LeaseCost	66100000	USD
CY2020	us-gaap	Lease Cost LeaseCost	18000000.0	USD
CY2019	us-gaap	Lease Cost LeaseCost	15800000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	38800000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	15500000	USD
CY2019	us-gaap	Operating Lease Payments OperatingLeasePayments	13800000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	8200000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	100000	USD
CY2019	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	100000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	9800000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1400000	USD
CY2019	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	1400000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	44400000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	19900000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	44000000.0	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	18400000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	43600000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	16900000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	42600000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	15900000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	41900000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	15300000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	498100000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	137200000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	714600000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	223600000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	287600000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	82000000.0	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	427000000.0	USD
CY2021Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	141600000	USD
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P13Y8M12D
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P16Y2M12D
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.067
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.063
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2021	us-gaap	Net Income Loss NetIncomeLoss	396900000	USD
CY2021	us-gaap	Revenues Revenues	17360500000	USD
CY2021	us-gaap	Interest Income Other InterestIncomeOther	100000	USD
CY2021	us-gaap	Interest Expense InterestExpense	82400000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	125000000.0	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	212600000	USD
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2500000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	19000000.0	USD
CY2021	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	277500000	USD
CY2021Q4	us-gaap	Assets Assets	4048200000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	386100000	USD
CY2020	us-gaap	Revenues Revenues	11264300000	USD
CY2020	us-gaap	Interest Income Other InterestIncomeOther	1000000.0	USD
CY2020	us-gaap	Interest Expense InterestExpense	51200000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	123000000.0	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	161000000.0	USD
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2300000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	2500000	USD
CY2020	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	227100000	USD
CY2020Q4	us-gaap	Assets Assets	2685700000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	154800000	USD
CY2019	us-gaap	Revenues Revenues	14034600000	USD
CY2019	us-gaap	Interest Income Other InterestIncomeOther	3200000	USD
CY2019	us-gaap	Interest Expense InterestExpense	54900000	USD
CY2019	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-14800000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	47600000	USD
CY2019	us-gaap	Depreciation And Amortization DepreciationAndAmortization	152200000	USD
CY2019	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	2100000	USD
CY2019	us-gaap	Extinguishment Of Debt Amount ExtinguishmentOfDebtAmount	4400000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	23700000	USD
CY2019	us-gaap	Property Plant And Equipment Additions PropertyPlantAndEquipmentAdditions	214600000	USD
CY2019Q4	us-gaap	Assets Assets	2687200000	USD

Files In Submission

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$MUSA
Murphy USA Inc Stock $musa

2021 Q4 Form 10-K Financial Statement

#000157351622000006 Filed on February 17, 2022

Income Statement

Balance Sheet

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Facts In Submission

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$MUSA Murphy USA Inc Stock $musa

2021 Q4 Form 10-K Financial Statement

#000157351622000006 Filed on February 17, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$MUSA
Murphy USA Inc Stock $musa