$KMX
CARMAX INC Stock $kmx

$kmx Overview Financials Valuation SEC Filings Company Website

2018 Q1 Form 10-K Financial Statement

#000117001018000054 Filed on April 24, 2018

Income Statement

Concept	2018 Q1	2017 Q1	2016 Q4
Revenue	$4.084B	$4.050B	$3.702B
YoY Change	0.85%	9.29%	4.44%
Cost Of Revenue	$3.548B	$3.488B	$3.198B
YoY Change	1.71%	8.43%	3.85%
Gross Profit	$536.7M	$562.2M	$503.1M
YoY Change	-4.52%	14.9%	8.36%
Gross Profit Margin	13.14%	13.88%	13.59%
Selling, General & Admin	$408.8M	$385.4M	$356.7M
YoY Change	6.07%	15.44%	5.7%
% of Gross Profit	76.17%	68.56%	70.9%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$46.70M	$43.20M	$42.70M
YoY Change	8.1%	17.07%	20.96%
% of Gross Profit	8.7%	7.68%	8.49%
Operating Expenses	$408.8M	$385.4M	$356.7M
YoY Change	6.07%	15.44%	5.7%
Operating Profit	$127.9M	$176.7M	$146.4M
YoY Change	-27.63%	13.73%	15.44%
Interest Expense	$81.40M	$66.50M	$15.07M
YoY Change	22.41%	-17.39%	50.39%
% of Operating Profit	63.64%	37.62%	10.29%
Other Income/Expense, Net			-$1.027M
YoY Change			-11.24%
Pretax Income	$210.1M	$242.3M	$219.7M
YoY Change	-13.29%	7.12%	5.63%
Income Tax	$76.10M	$89.70M	$83.02M
% Of Pretax Income	36.22%	37.02%	37.79%
Net Earnings	$122.1M	$152.6M	$136.6M
YoY Change	-19.96%	8.21%	6.59%
Net Earnings / Revenue	2.99%	3.77%	3.69%
Basic Earnings Per Share	$0.68	$0.82	$0.72
Diluted Earnings Per Share	$0.67	$0.81	$0.72
COMMON SHARES
Basic Shares Outstanding	178.7M shares	185.7M shares	189.2M shares
Diluted Shares Outstanding			190.8M shares

Balance Sheet

Concept	2018 Q1	2017 Q1	2016 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$45.00M	$38.00M	$24.00M
YoY Change	18.42%	2.7%	-27.27%
Cash & Equivalents	$44.53M	$38.42M	$23.71M
Short-Term Investments
Other Short-Term Assets	$93.46M	$41.91M	$41.35M
YoY Change	123.01%	59.0%	26.55%
Inventory	$2.391B	$2.261B	$2.170B
Prepaid Expenses
Receivables	$133.3M	$152.4M	$92.00M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.061B	$2.874B	$2.684B
YoY Change	6.54%	16.26%	1.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.667B	$2.518B	$2.449B
YoY Change	5.9%	16.5%	16.31%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$158.8M	$140.3M	$137.1M
YoY Change	13.2%	9.88%	-7.41%
Total Long-Term Assets	$14.42B	$13.41B	$13.08B
YoY Change	7.6%	11.82%	11.32%
TOTAL ASSETS
Total Short-Term Assets	$3.061B	$2.874B	$2.684B
Total Long-Term Assets	$14.42B	$13.41B	$13.08B
Total Assets	$17.49B	$16.28B	$15.76B
YoY Change	7.41%	12.58%	9.59%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$529.7M	$495.0M	$476.8M
YoY Change	7.02%	12.05%	13.28%
Accrued Expenses	$278.8M	$266.1M	$224.6M
YoY Change	4.75%	8.22%	6.02%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$1.000M
YoY Change
Long-Term Debt Due	$365.0M	$343.0M	$323.0M
YoY Change	6.41%	8.89%	11.0%
Total Short-Term Liabilities	$1.174B	$1.106B	$1.028B
YoY Change	6.17%	10.01%	11.28%
LONG-TERM LIABILITIES
Long-Term Debt	$12.75B	$11.83B	$11.49B
YoY Change	7.84%	14.58%	11.33%
Other Long-Term Liabilities	$242.6M	$238.6M	$232.4M
YoY Change	1.68%	4.05%	1.1%
Total Long-Term Liabilities	$242.6M	$238.6M	$232.4M
YoY Change	1.68%	4.05%	1.1%
TOTAL LIABILITIES
Total Short-Term Liabilities	$1.174B	$1.106B	$1.028B
Total Long-Term Liabilities	$242.6M	$238.6M	$232.4M
Total Liabilities	$14.17B	$13.17B	$12.74B
YoY Change	7.58%	13.98%	11.12%
SHAREHOLDERS EQUITY
Retained Earnings	$2.047B	$1.883B	$1.821B
YoY Change	8.71%	7.81%	4.49%
Common Stock	$89.87M	$93.27M	$93.68M
YoY Change	-3.65%	-4.19%	-5.17%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.317B	$3.109B	$3.015B
YoY Change
Total Liabilities & Shareholders Equity	$17.49B	$16.28B	$15.76B
YoY Change	7.41%	12.58%	9.59%

Cashflow Statement

Concept	2018 Q1	2017 Q1	2016 Q4
OPERATING ACTIVITIES
Net Income	$122.1M	$152.6M	$136.6M
YoY Change	-19.96%	8.21%	6.59%
Depreciation, Depletion And Amortization	$46.70M	$43.20M	$42.70M
YoY Change	8.1%	17.07%	20.96%
Cash From Operating Activities	$112.5M	-$132.1M	-$303.0M
YoY Change	-185.16%	-156.77%	2.05%
INVESTING ACTIVITIES
Capital Expenditures	-$69.20M	-$102.6M	-$100.9M
YoY Change	-32.55%	37.17%	6.1%
Acquisitions
YoY Change
Other Investing Activities	$1.100M	-$24.70M	$24.90M
YoY Change	-104.45%	-15.99%	24.5%
Cash From Investing Activities	-$68.30M	-$127.4M	-$76.00M
YoY Change	-46.39%	22.26%	1.2%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-15.10M	274.1M	86.80M
YoY Change	-105.51%	-320.34%	-71.52%
NET CHANGE
Cash From Operating Activities	112.5M	-132.1M	-303.0M
Cash From Investing Activities	-68.30M	-127.4M	-76.00M
Cash From Financing Activities	-15.10M	274.1M	86.80M
Net Change In Cash	29.10M	14.60M	-292.2M
YoY Change	99.32%	256.1%	334.82%
FREE CASH FLOW
Cash From Operating Activities	$112.5M	-$132.1M	-$303.0M
Capital Expenditures	-$69.20M	-$102.6M	-$100.9M
Free Cash Flow	$181.7M	-$29.50M	-$202.1M
YoY Change	-715.93%	-109.59%	0.15%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2018	dei	Amendment Flag AmendmentFlag	false
CY2018	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--02-28
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-02-28
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0001170010
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	178676159	shares
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2017Q3	dei	Entity Public Float EntityPublicFloat	12214839459	USD
CY2018	dei	Entity Registrant Name EntityRegistrantName	CARMAX INC
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2018Q1	kmx	A2017 Tax Act Federal Statutory Income Tax Rate A2017TaxActFederalStatutoryIncomeTaxRate	0.21
CY2017Q1	kmx	Accumulated Other Comprehensive Income Loss Deferred Taxes AccumulatedOtherComprehensiveIncomeLossDeferredTaxes	33800000	USD
CY2018Q1	kmx	Accumulated Other Comprehensive Income Loss Deferred Taxes AccumulatedOtherComprehensiveIncomeLossDeferredTaxes	16600000	USD
CY2017Q1	kmx	Cancellation Reserves Current Portion CancellationReservesCurrentPortion	56400000	USD
CY2017Q1	kmx	Finance And Capital Lease Obligations Noncurrent FinanceAndCapitalLeaseObligationsNoncurrent	486645000	USD
CY2018Q1	kmx	Finance And Capital Lease Obligations Noncurrent FinanceAndCapitalLeaseObligationsNoncurrent	490369000	USD
CY2018Q1	kmx	Cancellation Reserves Current Portion CancellationReservesCurrentPortion	56000000	USD
CY2018	kmx	Es Ps Offered On All Used Vehicles Provide Coverage For A Period Of Time ESPsOfferedOnAllUsedVehiclesProvideCoverageForAPeriodOfTime	P60M
CY2017Q1	kmx	Finance And Capital Lease Obligations Current FinanceAndCapitalLeaseObligationsCurrent	9491000	USD
CY2018Q1	kmx	Finance And Capital Lease Obligations Current FinanceAndCapitalLeaseObligationsCurrent	9994000	USD
CY2018Q1	kmx	Impactof Tax Legislation ImpactofTaxLegislation	11900000	USD
CY2016	kmx	Increase In Restricted Cash For Reserve Accounts IncreaseInRestrictedCashForReserveAccounts	12264000	USD
CY2017	kmx	Increase In Restricted Cash For Reserve Accounts IncreaseInRestrictedCashForReserveAccounts	17390000	USD
CY2018	kmx	Increase In Restricted Cash For Reserve Accounts IncreaseInRestrictedCashForReserveAccounts	22343000	USD
CY2018	kmx	Investment Maturity Period InvestmentMaturityPeriod	three months or less
CY2017Q1	kmx	Item As Percentage Of Total Assets ItemAsPercentageOfTotalAssets	0.026
CY2018Q1	kmx	Item As Percentage Of Total Assets ItemAsPercentageOfTotalAssets	0.018
CY2017Q1	kmx	Item As Percentage Of Total Assets At Fair Value ItemAsPercentageOfTotalAssetsAtFairValue	1.000
CY2018Q1	kmx	Item As Percentage Of Total Assets At Fair Value ItemAsPercentageOfTotalAssetsAtFairValue	1
CY2017Q1	kmx	Item As Percentage Of Total Liabilities ItemAsPercentageOfTotalLiabilities	0.000
CY2018Q1	kmx	Item As Percentage Of Total Liabilities ItemAsPercentageOfTotalLiabilities	0.000
CY2016	kmx	Kmx Average Balance Of Loans Held In Porfolio Kmx_averageBalanceOfLoansHeldInPorfolio	9092900000	USD
CY2017	kmx	Kmx Average Balance Of Loans Held In Porfolio Kmx_averageBalanceOfLoansHeldInPorfolio	10158300000	USD
CY2018	kmx	Kmx Average Balance Of Loans Held In Porfolio Kmx_averageBalanceOfLoansHeldInPorfolio	11210800000	USD
CY2018	kmx	Minimum Warranty Period MinimumWarrantyPeriod	P30D
CY2016	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	392036000	USD
CY2016	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	392000000	USD
CY2016Q2	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	100758000	USD
CY2016Q3	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	95969000	USD
CY2016Q4	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	89359000	USD
CY2017Q1	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	82898000	USD
CY2017	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	369000000	USD
CY2017	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	368984000	USD
CY2017Q2	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	109363000	USD
CY2017Q3	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	107936000	USD
CY2017Q4	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	102810000	USD
CY2018Q1	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	101073000	USD
CY2018	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	421200000	USD
CY2018	kmx	Net Income Loss From Financing NetIncomeLossFromFinancing	421182000	USD
CY2017Q1	kmx	Non Recourse Debt Current NonRecourseDebtCurrent	333713000	USD
CY2018Q1	kmx	Non Recourse Debt Current NonRecourseDebtCurrent	355433000	USD
CY2017Q1	kmx	Non Recourse Debt Non Current NonRecourseDebtNonCurrent	10387231000	USD
CY2018Q1	kmx	Non Recourse Debt Non Current NonRecourseDebtNonCurrent	11266964000	USD
CY2018	kmx	Number Of Warehouses NumberOfWarehouses	3	warehouse
CY2018Q1	kmx	Onetimediscretionarybonus Onetimediscretionarybonus	8000000	USD
CY2017Q1	kmx	Past Due Receivables As Percentage Of Total Ending Managed Receivables PastDueReceivablesAsPercentageOfTotalEndingManagedReceivables	0.031
CY2018Q1	kmx	Past Due Receivables As Percentage Of Total Ending Managed Receivables PastDueReceivablesAsPercentageOfTotalEndingManagedReceivables	0.034
CY2016	kmx	Payments On Non Recourse Debt PaymentsOnNonRecourseDebt	8496684000	USD
CY2017	kmx	Payments On Non Recourse Debt PaymentsOnNonRecourseDebt	8395360000	USD
CY2018	kmx	Payments On Non Recourse Debt PaymentsOnNonRecourseDebt	9296773000	USD
CY2016	kmx	Payments On Revolving Line Of Credit And Long Term Debt PaymentsOnRevolvingLineOfCreditAndLongTermDebt	1652100000	USD
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CY2018	kmx	Payments On Revolving Line Of Credit And Long Term Debt PaymentsOnRevolvingLineOfCreditAndLongTermDebt	4160650000	USD
CY2016	kmx	Proceeds From Issuance Of Non Recourse Debt ProceedsFromIssuanceOfNonRecourseDebt	9553805000	USD
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CY2016	kmx	Provision For Contract Cancellation Reserves ProvisionForContractCancellationReserves	77118000	USD
CY2017	kmx	Provision For Contract Cancellation Reserves ProvisionForContractCancellationReserves	64120000	USD
CY2018	kmx	Provision For Contract Cancellation Reserves ProvisionForContractCancellationReserves	62749000	USD
CY2016	kmx	Releases Of Restricted Cash From Reserve Accounts ReleasesOfRestrictedCashFromReserveAccounts	8357000	USD
CY2017	kmx	Releases Of Restricted Cash From Reserve Accounts ReleasesOfRestrictedCashFromReserveAccounts	11250000	USD
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CY2016	kmx	Repayments Of Long Term Finance And Capital Lease Obligations RepaymentsOfLongTermFinanceAndCapitalLeaseObligations	16417000	USD
CY2017	kmx	Repayments Of Long Term Finance And Capital Lease Obligations RepaymentsOfLongTermFinanceAndCapitalLeaseObligations	10817000	USD
CY2018	kmx	Repayments Of Long Term Finance And Capital Lease Obligations RepaymentsOfLongTermFinanceAndCapitalLeaseObligations	8997000	USD
CY2018	kmx	Required Benchmark For Account Delinquency RequiredBenchmarkForAccountDelinquency	P120D
CY2018	kmx	Retail Vehicle Sales Money Back Guarantee Period RetailVehicleSalesMoneyBackGuaranteePeriod	P5D
CY2017Q1	kmx	Total Ending Managed Receivables As Percentage By Major Credit Grade TotalEndingManagedReceivablesAsPercentageByMajorCreditGrade	1
CY2018Q1	kmx	Total Ending Managed Receivables As Percentage By Major Credit Grade TotalEndingManagedReceivablesAsPercentageByMajorCreditGrade	1
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CY2018Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	133321000	USD
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CY2017Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	1404000	USD
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CY2017Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	1041377000	USD
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CY2018Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2017Q1	us-gaap	Common Stock Value CommonStockValue	93274000	USD
CY2018Q1	us-gaap	Common Stock Value CommonStockValue	89874000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	618623000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	640611000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	676935000	USD
CY2016	us-gaap	Cost Of Revenue CostOfRevenue	13130915000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	13691824000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	14791350000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	324096000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	332466000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	276597000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	369279000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	377111000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	318489000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	45183000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	44645000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	41892000	USD
CY2017Q1	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	11826438000	USD
CY2018Q1	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	12752812000	USD
CY2017Q1	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	499518000	USD
CY2018Q1	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	492163000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	16398000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	4098000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	81486000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	17237000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2324000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	81007000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	839000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1774000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-479000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	1249000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	682000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	408000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	0	USD
CY2017Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	237093000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	147458000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	106176000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Investment In Subsidiaries DeferredTaxAssetsInvestmentInSubsidiaries	63670000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	150962000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	63256000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	235844000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	146776000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	150962000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	63256000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	69621000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	45744000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	59639000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	37362000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	1249000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	682000	USD
CY2016	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	31884000	USD
CY2017	us-gaap	Deferred Tax Expense From Stock Options Exercised DeferredTaxExpenseFromStockOptionsExercised	12253000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	84882000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	83520000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	11468000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Capitalized Inventory Costs DeferredTaxLiabilitiesDeferredExpenseCapitalizedInventoryCosts	18625000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	5075000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	21148000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	16157000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	52266000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	43663000	USD
CY2017Q1	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-89604000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Amounts Recognized In Balance Sheet DefinedBenefitPlanAmountsRecognizedInBalanceSheet	-85075000	USD
CY2016	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	-2214000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	245000	USD
CY2018	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	3256000	USD
CY2017Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	229106000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Benefit Obligation DefinedBenefitPlanBenefitObligation	241902000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Expected Future Employer Contributions Current Fiscal Year DefinedBenefitPlanExpectedFutureEmployerContributionsCurrentFiscalYear	6000000	USD
CY2017Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	139502000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Fair Value Of Plan Assets DefinedBenefitPlanFairValueOfPlanAssets	156827000	USD
CY2017Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-89604000	USD
CY2018Q1	us-gaap	Defined Benefit Plan Funded Status Of Plan DefinedBenefitPlanFundedStatusOfPlan	-85075000	USD
CY2016	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1303000	USD
CY2017	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	811000	USD
CY2018	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	675000	USD
CY2016	us-gaap	Depreciation Depreciation	127000000	USD
CY2017	us-gaap	Depreciation Depreciation	140700000	USD
CY2018	us-gaap	Depreciation Depreciation	158600000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	137360000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	168875000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	179942000	USD
CY2017Q1	us-gaap	Derivative Assets DerivativeAssets	2997000	USD
CY2018Q1	us-gaap	Derivative Assets DerivativeAssets	12127000	USD
CY2017Q1	us-gaap	Derivative Liabilities DerivativeLiabilities	509000	USD
CY2018Q1	us-gaap	Derivative Liabilities DerivativeLiabilities	99000	USD
CY2016	us-gaap	Direct Operating Costs DirectOperatingCosts	61600000	USD
CY2017	us-gaap	Direct Operating Costs DirectOperatingCosts	71000000	USD
CY2018	us-gaap	Direct Operating Costs DirectOperatingCosts	83200000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.07
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.91
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.85
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.72
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.29
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.14
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.99
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.82
CY2018Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.68
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.64
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.03
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.90
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.84
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.72
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.81
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.26
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.13
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.98
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CY2018Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.60
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.383
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.377
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.376
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CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2018	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.327
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.031
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.002
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense EffectiveIncomeTaxRateReconciliationNondeductibleExpense	0.002
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	0.000
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Share Based Compensation Cost EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost	-0.013
CY2016	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.032
CY2017	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.027
CY2018	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.031
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.001
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.001
CY2018	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.002
CY2018Q1	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	49000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P1Y11M
CY2016	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	32100000	USD
CY2017	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	12800000	USD
CY2018	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	13800000	USD
CY2016	us-gaap	Financing Interest Expense FinancingInterestExpense	127700000	USD
CY2017	us-gaap	Financing Interest Expense FinancingInterestExpense	171400000	USD
CY2018	us-gaap	Financing Interest Expense FinancingInterestExpense	215000000	USD
CY2016Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	94900000	USD
CY2017Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	123600000	USD
CY2018Q1	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	128600000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	108800000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	121800000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	230700000	USD
CY2018	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	254400000	USD
CY2017Q1	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	331000000	USD
CY2018Q1	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	393200000	USD
CY2016	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-13136000	USD
CY2017	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-4169000	USD
CY2018	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-1298000	USD
CY2016	us-gaap	Gross Profit GrossProfit	2018760000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	572637000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	545362000	USD
CY2016Q4	us-gaap	Gross Profit GrossProfit	503135000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	562160000	USD
CY2017	us-gaap	Gross Profit GrossProfit	2183294000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	648938000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	604005000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	539188000	USD
CY2018Q1	us-gaap	Gross Profit GrossProfit	536728000	USD
CY2018	us-gaap	Gross Profit GrossProfit	2328859000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1009944000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1006405000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1063608000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	386516000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	379435000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	399496000	USD
CY2018	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	32700000	USD
CY2018	us-gaap	Income Tax Reconciliation Change In Enacted Tax Rate IncomeTaxReconciliationChangeInEnactedTaxRate	20800000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	319978000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	371227000	USD
CY2018	us-gaap	Income Taxes Paid IncomeTaxesPaid	353977000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-23051000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	74579000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	38286000	USD
CY2016	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-5519000	USD
CY2017	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20217000	USD
CY2018	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-19067000	USD
CY2016	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	1202587000	USD
CY2017	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	1209782000	USD
CY2018	us-gaap	Increase Decrease In Finance Receivables IncreaseDecreaseInFinanceReceivables	1077219000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-154845000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	328534000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	130131000	USD
CY2016	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-15229000	USD
CY2017	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	2781000	USD
CY2018	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	34620000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	160000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-143000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	2361000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-87107000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-77370000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-82150000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	49707000	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	36524000	USD
CY2018	us-gaap	Increase Decrease In Restricted Cash IncreaseDecreaseInRestrictedCash	19089000	USD
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	682900000	USD
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	762000000	USD
CY2018	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	856600000	USD
CY2016	us-gaap	Interest Expense InterestExpense	36358000	USD
CY2017	us-gaap	Interest Expense InterestExpense	56416000	USD
CY2018	us-gaap	Interest Expense InterestExpense	70745000	USD
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	454000000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	440000000	USD
CY2018	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	504000000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	555200000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	590600000	USD
CY2018	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	641600000	USD
CY2016	us-gaap	Interest Paid InterestPaid	34319000	USD
CY2017	us-gaap	Interest Paid InterestPaid	55139000	USD
CY2018	us-gaap	Interest Paid InterestPaid	69431000	USD
CY2016	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	9200000	USD
CY2017	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	11200000	USD
CY2018	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	6900000	USD
CY2017Q1	us-gaap	Interest Receivable InterestReceivable	38500000	USD
CY2018Q1	us-gaap	Interest Receivable InterestReceivable	43200000	USD
CY2017Q1	us-gaap	Inventory Net InventoryNet	2260563000	USD
CY2018Q1	us-gaap	Inventory Net InventoryNet	2390694000	USD
CY2017Q1	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	70800000	USD
CY2018Q1	us-gaap	Investments And Other Noncurrent Assets InvestmentsAndOtherNoncurrentAssets	80900000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	28200000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	30800000	USD
CY2018	us-gaap	Labor And Related Expense LaborAndRelatedExpense	35400000	USD
CY2017Q1	us-gaap	Liabilities Liabilities	13170776000	USD
CY2018Q1	us-gaap	Liabilities Liabilities	14169423000	USD
CY2017Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	16279356000	USD
CY2018Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	17486272000	USD
CY2017Q1	us-gaap	Liabilities Current LiabilitiesCurrent	1105787000	USD
CY2018Q1	us-gaap	Liabilities Current LiabilitiesCurrent	1174058000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	46900000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	49400000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	52400000	USD
CY2017Q1	us-gaap	Other Assets Current OtherAssetsCurrent	41910000	USD
CY2018Q1	us-gaap	Other Assets Current OtherAssetsCurrent	93462000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Within Four Years MinimumLeasePaymentsSaleLeasebackTransactionsWithinFourYears	43341000	USD
CY2017Q1	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	509000	USD
CY2018Q1	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	99000	USD
CY2017Q1	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	12193623000	USD
CY2018Q1	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	13142605000	USD
CY2017Q1	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	343266000	USD
CY2018Q1	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	365554000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions MinimumLeasePaymentsSaleLeasebackTransactions	1055238000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Thereafter MinimumLeasePaymentsSaleLeasebackTransactionsThereafter	826487000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Within Five Years MinimumLeasePaymentsSaleLeasebackTransactionsWithinFiveYears	42877000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Within One Year MinimumLeasePaymentsSaleLeasebackTransactionsWithinOneYear	49263000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Within Three Years MinimumLeasePaymentsSaleLeasebackTransactionsWithinThreeYears	44070000	USD
CY2018Q1	us-gaap	Minimum Lease Payments Sale Leaseback Transactions Within Two Years MinimumLeasePaymentsSaleLeasebackTransactionsWithinTwoYears	49200000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	505340000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	921906000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities Continuing Operations NetCashProvidedByUsedInFinancingActivitiesContinuingOperations	413446000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-378795000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-465573000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities Continuing Operations NetCashProvidedByUsedInInvestingActivitiesContinuingOperations	-326787000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-116757000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-455311000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities Continuing Operations NetCashProvidedByUsedInOperatingActivitiesContinuingOperations	-80550000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	623428000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	175360000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	162362000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	136645000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	152603000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	626970000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	211702000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	181424000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	148840000	USD
CY2018Q1	us-gaap	Net Income Loss NetIncomeLoss	122146000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	664112000	USD
CY2017Q1	us-gaap	Non Recourse Debt NonRecourseDebt	10740000000	USD
CY2017Q1	us-gaap	Non Recourse Debt NonRecourseDebt	10742425000	USD
CY2018Q1	us-gaap	Non Recourse Debt NonRecourseDebt	11644615000	USD
CY2018Q1	us-gaap	Non Recourse Debt NonRecourseDebt	11640000000	USD
CY2016	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-12559000	USD
CY2017	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-953000	USD
CY2018	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	1363000	USD
CY2017Q1	us-gaap	Notes Receivable Gross NotesReceivableGross	10681300000	USD
CY2018Q1	us-gaap	Notes Receivable Gross NotesReceivableGross	11618900000	USD
CY2017Q1	us-gaap	Notes Receivable Net NotesReceivableNet	10596100000	USD
CY2017Q1	us-gaap	Notes Receivable Net NotesReceivableNet	10596076000	USD
CY2018Q1	us-gaap	Notes Receivable Net NotesReceivableNet	11535704000	USD
CY2018Q1	us-gaap	Notes Receivable Net NotesReceivableNet	11535700000	USD
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segment
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	848191000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	51817000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	42271000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	44113000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	47415000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	50716000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	611859000	USD
CY2017Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	140295000	USD
CY2018Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	158807000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-2750000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	-949000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent	1371000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	1462000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-19000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodNetOfTax	-2546000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	752000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-227000	USD
CY2018	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-710000	USD
CY2016	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-7555000	USD
CY2017	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	12692000	USD
CY2018	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	14194000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-11116000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	5972000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	9835000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-4805000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	13641000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	12823000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-4805000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	13641000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	12823000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	2214000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-246000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-3256000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-8277000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-11038000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesBeforeTax	-3009000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-5023000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-6701000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesNetOfTax	-1813000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-3254000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-4337000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci On Derivatives Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIOnDerivativesTax	-1196000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-2057000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1546000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	-1815000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1288000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-968000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Net Of Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossNetOfTax	-1175000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-769000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-578000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossTax	-640000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	-20715000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	9878000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax	17953000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	-12578000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	5991000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodNetOfTax	12381000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	-8137000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	3887000	USD
CY2018	us-gaap	Other Comprehensive Income Unrealized Gain Loss On Derivatives Arising During Period Tax OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax	5572000	USD
CY2016	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	33400000	USD
CY2017	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	40200000	USD
CY2018	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	47800000	USD
CY2017Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	238551000	USD
CY2018Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	242553000	USD
CY2017Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	952562000	USD
CY2018Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	995479000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-400000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	0	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	400000	USD
CY2017Q1	us-gaap	Other Receivables OtherReceivables	-100000	USD
CY2018Q1	us-gaap	Other Receivables OtherReceivables	2200000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	983941000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	564337000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	579570000	USD
CY2016	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	3104000	USD
CY2017	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	17118000	USD
CY2018	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	16261000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	11463000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	6724000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	8649000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	315584000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	418144000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	296816000	USD
CY2017Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	467000	USD
CY2018Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	485000	USD
CY2017Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	89137000	USD
CY2018Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	84590000	USD
CY2016	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	47038000	USD
CY2017	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	59869000	USD
CY2018	us-gaap	Proceeds From Issuance Or Sale Of Equity ProceedsFromIssuanceOrSaleOfEquity	73520000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-357000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	-366000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	65000	USD
CY2016	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	324000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	730000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Other Investments ProceedsFromSaleAndMaturityOfOtherInvestments	1692000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1542000	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	1229000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	97000	USD
CY2017Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3559770000	USD
CY2018Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	3831310000	USD
CY2017Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2518393000	USD
CY2018Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2667061000	USD
CY2016	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	101199000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	150598000	USD
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	137591000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	101200000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	150600000	USD
CY2018	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	137600000	USD
CY2018Q1	us-gaap	Purchase Obligation PurchaseObligation	175000000	USD
CY2018Q1	us-gaap	Purchase Obligation Due In Next Twelve Months PurchaseObligationDueInNextTwelveMonths	78800000	USD
CY2016	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-6311000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-7669000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-2988000	USD
CY2017Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	380400000	USD
CY2017Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	380353000	USD
CY2018Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	399400000	USD
CY2018Q1	us-gaap	Restricted Cash And Cash Equivalents At Carrying Value RestrictedCashAndCashEquivalentsAtCarryingValue	399442000	USD
CY2017Q1	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	52800000	USD
CY2018Q1	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	56800000	USD
CY2017Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	1883283000	USD
CY2018Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	2047240000	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	15149675000	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	4126386000	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	3997248000	USD
CY2016Q4	us-gaap	Sales Revenue Net SalesRevenueNet	3701524000	USD
CY2017Q1	us-gaap	Sales Revenue Net SalesRevenueNet	4049960000	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	15875118000	USD
CY2017Q2	us-gaap	Sales Revenue Net SalesRevenueNet	4542334000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	4386640000	USD
CY2017Q4	us-gaap	Sales Revenue Net SalesRevenueNet	4107017000	USD
CY2018Q1	us-gaap	Sales Revenue Net SalesRevenueNet	4084218000	USD
CY2018	us-gaap	Sales Revenue Net SalesRevenueNet	17120209000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1351935000	USD
CY2016Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	380230000	USD
CY2016Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	366126000	USD
CY2016Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	356735000	USD
CY2017Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	385413000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1488504000	USD
CY2017Q2	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	403503000	USD
CY2017Q3	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	405062000	USD
CY2017Q4	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	399672000	USD
CY2018Q1	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	408814000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	1617051000	USD
CY2017Q1	us-gaap	Senior Notes SeniorNotes	500000000	USD
CY2018Q1	us-gaap	Senior Notes SeniorNotes	500000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	51077000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	91595000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	61879000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.000
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.318
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.348
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMaximum	0.342
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.258
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.293
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRateMinimum	0.273
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.021
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.024
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.023
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.000
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.001
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.007
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.306
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.307
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Weighted Average Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate	0.297
CY2017Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Plan Modification Incremental Compensation Cost ShareBasedCompensationArrangementByShareBasedPaymentAwardPlanModificationIncrementalCompensationCost	10900000	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y8M
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y7M
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P4Y7M
CY2017Q1	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	62000	USD
CY2018Q1	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	127000	USD
CY2017Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	6300000	USD
CY2018Q1	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	6100000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-17261000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-4513000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	-6888000	USD
CY2016	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	47038000	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	59869000	USD
CY2018	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	73520000	USD
CY2016	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	971447000	USD
CY2017	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	557782000	USD
CY2018	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	573638000	USD
CY2015Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3156785000	USD
CY2016Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	2904786000	USD
CY2017Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3108580000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3316849000	USD
CY2017Q1	us-gaap	Trading Securities TradingSecurities	16519000	USD
CY2018Q1	us-gaap	Trading Securities TradingSecurities	19429000	USD
CY2017Q1	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	23919000	USD
CY2018Q1	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	24239000	USD
CY2015Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	24951000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26800000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	26771000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	29955000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	30000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28700000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	28685000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	853000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	216000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	607000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	830000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	16000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	304000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2000000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2700000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	4380000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3342000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	2800000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	5256000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	125000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	2651000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1878000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	0	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3615000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	3701000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	10300000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	9400000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	9600000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	205540000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	192215000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	184470000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	203275000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	190343000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	182660000	shares
CY2017Q1	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	35000000	USD
CY2018Q1	us-gaap	Workers Compensation Liability Current WorkersCompensationLiabilityCurrent	36500000	USD
CY2018	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;color:#0000ff;font-weight:bold;">BUSINESS AND BACKGROUND</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;"> </font></div><div style="line-height:120%;padding-bottom:16px;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">CarMax, Inc. (“we,” “our,” “us,” “CarMax” and “the company”), including its wholly owned subsidiaries, is the largest retailer of used vehicles in the United States.  We operate in </font><font style="font-family:inherit;font-size:10pt;">two</font><font style="font-family:inherit;font-size:10pt;"> reportable segments:  CarMax Sales Operations and CarMax Auto Finance (“CAF”).  Our CarMax Sales Operations segment consists of all aspects of our auto merchandising and service operations, excluding financing provided by CAF.  Our CAF segment consists solely of our own finance operation that provides financing to customers buying retail vehicles from CarMax.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">We deliver an unrivaled customer experience by offering a broad selection of high quality used vehicles and related products and services at low, no-haggle prices using a customer-friendly sales process in an attractive, modern sales facility, as well as through carmax.com and our mobile apps.  We provide customers with a range of related products and services, including the appraisal and purchase of vehicles directly from consumers; the financing of retail vehicle purchases through CAF and third-party finance providers; the sale of extended protection plan (“EPP”) products, which include extended service plans (“ESPs”) and guaranteed asset protection (“GAP”); and vehicle repair service.  Vehicles purchased through the appraisal process that do not meet our retail standards are sold to licensed dealers through on-site wholesale auctions.</font></div></div>

Files In Submission

Name	View Source	Status
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$KMX
CARMAX INC Stock $kmx

2018 Q1 Form 10-K Financial Statement

#000117001018000054 Filed on April 24, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KMX CARMAX INC Stock $kmx

2018 Q1 Form 10-K Financial Statement

#000117001018000054 Filed on April 24, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$KMX
CARMAX INC Stock $kmx