$BBY
BEST BUY CO INC Stock $bby

$bby Overview Financials Valuation SEC Filings Company Website

2018 Q1 Form 10-K Financial Statement

#000076447818000013 Filed on April 02, 2018

Income Statement

Concept	2018 Q1	2018	2017 Q1
Revenue	$15.36B	$42.15B	$13.48B
YoY Change	13.95%	6.97%	-1.04%
Cost Of Revenue	$11.94B	$32.28B	$10.45B
YoY Change	14.26%	7.72%	-2.07%
Gross Profit	$3.421B	$9.876B	$3.030B
YoY Change	12.9%	4.62%	2.68%
Gross Profit Margin	22.27%	23.43%	22.47%
Selling, General & Admin	$2.537B	$8.023B	$2.129B
YoY Change	19.16%	6.31%	-0.28%
% of Gross Profit	74.16%	81.24%	70.26%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$183.0M	$683.0M	$163.0M
YoY Change	12.27%	4.43%	0.0%
% of Gross Profit	5.35%	6.92%	5.38%
Operating Expenses	$2.537B	$8.023B	$2.129B
YoY Change	19.16%	6.31%	-0.28%
Operating Profit	$884.0M	$1.843B	$881.0M
YoY Change	0.34%	-0.59%	14.27%
Interest Expense	-$1.000M	$75.00M	-$9.000M
YoY Change	-88.89%	4.17%	-67.86%
% of Operating Profit	-0.11%	4.07%	-1.02%
Other Income/Expense, Net
YoY Change
Pretax Income	$873.0M	$1.480B	$873.0M
YoY Change	0.0%	-1.79%	16.4%
Income Tax	$226.0M	$818.0M	$266.0M
% Of Pretax Income	25.89%	55.27%	30.47%
Net Earnings	$364.0M	$1.000B	$607.0M
YoY Change	-40.03%	-18.57%	26.72%
Net Earnings / Revenue	2.37%	2.37%	4.5%
Basic Earnings Per Share		$3.33
Diluted Earnings Per Share	$1.226M	$3.26	$1.91
COMMON SHARES
Basic Shares Outstanding	282.7M shares	300.4M	309.1M shares
Diluted Shares Outstanding		307.1M

Balance Sheet

Concept	2018 Q1	2018	2017 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$3.133B	$3.133B	$3.921B
YoY Change	-20.1%	-20.1%	19.51%
Cash & Equivalents	$1.101B	$1.101B	$2.240B
Short-Term Investments	$2.032B	$2.032B	$1.681B
Other Short-Term Assets	$438.0M	$438.0M	$384.0M
YoY Change	14.06%	14.06%	-2.04%
Inventory	$5.209B	$5.209B	$4.864B
Prepaid Expenses
Receivables	$1.049B	$1.049B	$1.347B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$9.829B	$9.829B	$10.52B
YoY Change	-6.53%	-6.53%	6.37%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.421B	$2.421B	$2.293B
YoY Change	5.58%	5.58%	-2.26%
Goodwill	$425.0M		$425.0M
YoY Change	0.0%		0.0%
Intangibles	$18.00M
YoY Change
Long-Term Investments
YoY Change
Other Assets	$355.0M	$374.0M	$622.0M
YoY Change	-42.93%	-39.87%	-25.15%
Total Long-Term Assets	$3.220B	$3.220B	$3.340B
YoY Change	-3.59%	-3.59%	-8.06%
TOTAL ASSETS
Total Short-Term Assets	$9.829B	$9.829B	$10.52B
Total Long-Term Assets	$3.220B	$3.220B	$3.340B
Total Assets	$13.05B	$13.05B	$13.86B
YoY Change	-5.82%	-5.82%	2.49%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$4.873B	$4.873B	$4.984B
YoY Change	-2.23%	-2.23%	12.0%
Accrued Expenses	$1.004B	$1.425B	$865.0M
YoY Change	16.07%	16.52%	7.86%
Deferred Revenue	$427.0M
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$544.0M	$544.0M	$44.00M
YoY Change	1136.36%	1136.36%	-88.86%
Total Short-Term Liabilities	$7.817B	$7.817B	$7.122B
YoY Change	9.76%	9.76%	2.84%
LONG-TERM LIABILITIES
Long-Term Debt	$811.0M	$811.0M	$1.321B
YoY Change	-38.61%	-38.61%	-1.34%
Other Long-Term Liabilities	$809.0M	$809.0M	$704.0M
YoY Change	14.91%	14.91%	-19.73%
Total Long-Term Liabilities	$809.0M	$1.620B	$2.025B
YoY Change	-60.05%	-20.0%	-8.62%
TOTAL LIABILITIES
Total Short-Term Liabilities	$7.817B	$7.817B	$7.122B
Total Long-Term Liabilities	$809.0M	$1.620B	$2.025B
Total Liabilities	$8.626B	$9.437B	$9.147B
YoY Change	-5.7%	3.17%	0.07%
SHAREHOLDERS EQUITY
Retained Earnings	$3.343B		$4.399B
YoY Change	-24.01%		6.51%
Common Stock	$28.00M		$31.00M
YoY Change	-9.68%		-3.13%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.612B	$3.612B	$4.709B
YoY Change
Total Liabilities & Shareholders Equity	$13.05B	$13.05B	$13.86B
YoY Change	-5.82%	-5.82%	2.49%

Cashflow Statement

Concept	2018 Q1	2018	2017 Q1
OPERATING ACTIVITIES
Net Income	$364.0M	$1.000B	$607.0M
YoY Change	-40.03%	-18.57%	26.72%
Depreciation, Depletion And Amortization	$183.0M	$683.0M	$163.0M
YoY Change	12.27%	4.43%	0.0%
Cash From Operating Activities	$938.0M	$2.141B	$1.150B
YoY Change	-18.43%	-16.27%	30.68%
INVESTING ACTIVITIES
Capital Expenditures	-$199.0M	$688.0M	-$135.0M
YoY Change	47.41%	18.62%	-13.46%
Acquisitions		$0.00
YoY Change
Other Investing Activities	$213.0M	$7.000M	$106.0M
YoY Change	100.94%	-111.86%	-57.26%
Cash From Investing Activities	$14.00M	-$1.002B	-$29.00M
YoY Change	-148.28%	14.25%	-131.52%
FINANCING ACTIVITIES
Cash Dividend Paid		$409.0M
YoY Change		-19.01%
Common Stock Issuance & Retirement, Net		$1.841B
YoY Change		249.34%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-962.0M	-2.297B	-219.0M
YoY Change	339.27%	61.99%	-71.74%
NET CHANGE
Cash From Operating Activities	938.0M	2.141B	1.150B
Cash From Investing Activities	14.00M	-1.002B	-29.00M
Cash From Financing Activities	-962.0M	-2.297B	-219.0M
Net Change In Cash	-10.00M	-1.133B	902.0M
YoY Change	-101.11%	-516.54%	357.87%
FREE CASH FLOW
Cash From Operating Activities	$938.0M	$2.141B	$1.150B
Capital Expenditures	-$199.0M	$688.0M	-$135.0M
Free Cash Flow	$1.137B	$1.453B	$1.285B
YoY Change	-11.52%	-26.5%	24.03%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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CY2018	bby	Accelerated Share Repurchase Pricelowendoftherange AcceleratedShareRepurchasePricelowendoftherange	150000000	USD
CY2017	bby	Accelerated Share Repurchase Settlement Amount AcceleratedShareRepurchaseSettlementAmount	165000000	USD
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CY2018	bby	Days Until Excluded From Comparable Sales DaysUntilExcludedFromComparableSales	P14D
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CY2018	bby	Deferred Income Tax Expense Benefit Total Ops DeferredIncomeTaxExpenseBenefit_TotalOps	162000000	USD
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CY2018Q1	bby	Financing Leases Future Minimum Payments Due In Five Years FinancingLeasesFutureMinimumPaymentsDueInFiveYears	18000000	USD
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CY2018Q1	bby	Financing Leases Future Minimum Payments Due In Three Years FinancingLeasesFutureMinimumPaymentsDueInThreeYears	36000000	USD
CY2018Q1	bby	Financing Leases Future Minimum Payments Due In Two Years FinancingLeasesFutureMinimumPaymentsDueInTwoYears	43000000	USD
CY2018Q1	bby	Financing Leases Future Minimum Payments Due Next Twelve Months FinancingLeasesFutureMinimumPaymentsDueNextTwelveMonths	47000000	USD
CY2018Q1	bby	Financing Leases Future Minimum Payments Due Thereafter FinancingLeasesFutureMinimumPaymentsDueThereafter	47000000	USD
CY2018Q1	bby	Financing Leases Future Minimum Payments Interest Included In Payments FinancingLeasesFutureMinimumPaymentsInterestIncludedInPayments	28000000	USD
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CY2018	bby	Percentage Of Matching Contribution Made By Company Of First Three Percentage Of Participating Employees Contribution PercentageOfMatchingContributionMadeByCompanyOfFirstThreePercentageOfParticipatingEmployeesContribution	1.00
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CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
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CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-02-03
CY2018	dei	Document Type DocumentType	10-K
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CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
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CY2018	dei	Entity Registrant Name EntityRegistrantName	BEST BUY CO INC
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
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CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	0	shares
CY2017Q1	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	29000000	USD
CY2018Q1	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	17000000	USD
CY2017Q1	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	37000000	USD
CY2018Q1	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	21000000	USD
CY2016Q1	us-gaap	Assets Assets	13519000000	USD
CY2017Q1	us-gaap	Assets Assets	13856000000	USD
CY2018Q1	us-gaap	Assets Assets	13049000000	USD
CY2017Q1	us-gaap	Assets Current AssetsCurrent	10516000000	USD
CY2018Q1	us-gaap	Assets Current AssetsCurrent	9829000000	USD
CY2016	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	92000000	USD
CY2017	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	48000000	USD
CY2018	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	123000000	USD
CY2018Q1	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	7000000	USD
CY2017Q1	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	300000000	USD
CY2018Q1	us-gaap	Capital Leased Assets Gross CapitalLeasedAssetsGross	340000000	USD
CY2017Q1	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	166000000	USD
CY2018Q1	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	184000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	27000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	7000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	2000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	2000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	3000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	4000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	9000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	5000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	15000000	USD
CY2018Q1	us-gaap	Capital Leases Future Minimum Sublease Rentals CapitalLeasesFutureMinimumSubleaseRentals	69000000	USD
CY2017Q1	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	134000000	USD
CY2018Q1	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	156000000	USD
CY2016Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1976000000	USD
CY2017Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	2240000000	USD
CY2018Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1101000000	USD
CY2016Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2161000000	USD
CY2017Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	2433000000	USD
CY2018Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1300000000	USD
CY2016	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-757000000	USD
CY2017	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	272000000	USD
CY2018	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-1133000000	USD
CY2017Q1	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	1531000000	USD
CY2018Q1	us-gaap	Cash Equivalents At Carrying Value CashEquivalentsAtCarryingValue	524000000	USD
CY2017Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2016	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.43
CY2017	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.57
CY2018	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.36
CY2017Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2018Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2017Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2018Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1000000000	shares
CY2017Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	311108000	shares
CY2018Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	282988000	shares
CY2017Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	311108000	shares
CY2018Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	282988000	shares
CY2017Q1	us-gaap	Common Stock Value CommonStockValue	31000000	USD
CY2018Q1	us-gaap	Common Stock Value CommonStockValue	28000000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	786000000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1236000000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1035000000	USD
CY2016	us-gaap	Cost Of Goods Sold CostOfGoodsSold	30334000000	USD
CY2017	us-gaap	Cost Of Goods Sold CostOfGoodsSold	29963000000	USD
CY2018	us-gaap	Cost Of Goods Sold CostOfGoodsSold	32275000000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	347000000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	317000000	USD
CY2018	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	547000000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	60000000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	54000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	50000000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	455000000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	408000000	USD
CY2018	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	656000000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	48000000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	37000000	USD
CY2018	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	59000000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	65000000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	163000000	USD
CY2018	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	141000000	USD
CY2016	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-27000000	USD
CY2017	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	17000000	USD
CY2018	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	10000000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	48000000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	201000000	USD
CY2018	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	162000000	USD
CY2017Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	359000000	USD
CY2018Q1	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	230000000	USD
CY2017Q1	us-gaap	Deferred Rent Credit Current DeferredRentCreditCurrent	33000000	USD
CY2018Q1	us-gaap	Deferred Rent Credit Current DeferredRentCreditCurrent	30000000	USD
CY2017Q1	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	121000000	USD
CY2018Q1	us-gaap	Deferred Rent Credit Noncurrent DeferredRentCreditNoncurrent	107000000	USD
CY2017Q1	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	418000000	USD
CY2018Q1	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	453000000	USD
CY2017Q1	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	34000000	USD
CY2018Q1	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	22000000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	10000000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	21000000	USD
CY2018	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	11000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	104000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Deferred Income DeferredTaxAssetsDeferredIncome	69000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	210000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Goodwill And Intangible Assets DeferredTaxAssetsGoodwillAndIntangibleAssets	102000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	770000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	488000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	317000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	159000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	676000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	389000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	123000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	120000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	59000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	38000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	43000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	32000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	64000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	32000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	76000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Other DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOther	43000000	USD
CY2017Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	94000000	USD
CY2018Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	99000000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	22000000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	20000000	USD
CY2017Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	240000000	USD
CY2018Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	163000000	USD
CY2016	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	53000000	USD
CY2017	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	56000000	USD
CY2018	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	62000000	USD
CY2016	us-gaap	Depreciation Depreciation	657000000	USD
CY2017	us-gaap	Depreciation Depreciation	654000000	USD
CY2018	us-gaap	Depreciation Depreciation	683000000	USD
CY2017Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	15000000	USD
CY2018Q1	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	2000000	USD
CY2017Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	3000000	USD
CY2018Q1	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	13000000	USD
CY2016	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	99000000	USD
CY2017	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	0	USD
CY2018	us-gaap	Discontinued Operation Gain Loss From Disposal Of Discontinued Operation Before Income Tax DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax	0	USD
CY2017	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	16000000	USD
CY2016	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-1000000	USD
CY2017	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	-7000000	USD
CY2018	us-gaap	Discontinued Operation Tax Effect Of Discontinued Operation DiscontinuedOperationTaxEffectOfDiscontinuedOperation	0	USD
CY2016	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	1000000	USD
CY2017	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	7000000	USD
CY2018	us-gaap	Discontinued Operation Tax Effect Of Income Loss From Discontinued Operation During Phase Out Period DiscontinuedOperationTaxEffectOfIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriod	0	USD
CY2016	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	-8000000	USD
CY2017	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	28000000	USD
CY2018	us-gaap	Disposal Group Including Discontinued Operation Operating Income Loss DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss	1000000	USD
CY2016Q1	us-gaap	Disposal Group Including Discontinued Operation Property Plant And Equipment DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment	31000000	USD
CY2016	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	217000000	USD
CY2017	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	0	USD
CY2018	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	0	USD
CY2016	us-gaap	Dividends Common Stock DividendsCommonStock	501000000	USD
CY2017	us-gaap	Dividends Common Stock DividendsCommonStock	505000000	USD
CY2018	us-gaap	Dividends Common Stock DividendsCommonStock	411000000	USD
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.59
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.86
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.33
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.56
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.70
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.61
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.91
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.81
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.60
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.67
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.78
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.26
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-38000000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	10000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	25000000	USD
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.384
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.335
CY2018	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.450
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
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	0.337
CY2017Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	358000000	USD
CY2018Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	561000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	5000000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	19000000	USD
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	19000000	USD
CY2016	us-gaap	Fair Value Assumptions Expected Volatility Rate FairValueAssumptionsExpectedVolatilityRate	0.37
CY2017	us-gaap	Fair Value Assumptions Expected Volatility Rate FairValueAssumptionsExpectedVolatilityRate	0.37
CY2018	us-gaap	Fair Value Assumptions Expected Volatility Rate FairValueAssumptionsExpectedVolatilityRate	0.38
CY2017Q1	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	4998000000	USD
CY2018Q1	us-gaap	Fixtures And Equipment Gross FixturesAndEquipmentGross	5410000000	USD
CY2016	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	99000000	USD
CY2017	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2018	us-gaap	Gain Loss On Sale Of Business GainLossOnSaleOfBusiness	0	USD
CY2016	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	2000000	USD
CY2017	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	3000000	USD
CY2018	us-gaap	Gain Loss On Sale Of Equity Investments GainLossOnSaleOfEquityInvestments	1000000	USD
CY2017Q1	us-gaap	Goodwill Goodwill	425000000	USD
CY2018Q1	us-gaap	Goodwill Goodwill	425000000	USD
CY2017Q1	us-gaap	Goodwill Gross GoodwillGross	1100000000	USD
CY2018Q1	us-gaap	Goodwill Gross GoodwillGross	1100000000	USD
CY2017Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	675000000	USD
CY2018Q1	us-gaap	Goodwill Impaired Accumulated Impairment Loss GoodwillImpairedAccumulatedImpairmentLoss	675000000	USD
CY2016	us-gaap	Gross Profit GrossProfit	9191000000	USD
CY2016Q2	us-gaap	Gross Profit GrossProfit	2145000000	USD
CY2016Q3	us-gaap	Gross Profit GrossProfit	2062000000	USD
CY2016Q4	us-gaap	Gross Profit GrossProfit	2203000000	USD
CY2017Q1	us-gaap	Gross Profit GrossProfit	3030000000	USD
CY2017	us-gaap	Gross Profit GrossProfit	9440000000	USD
CY2017Q2	us-gaap	Gross Profit GrossProfit	2022000000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	2153000000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	2280000000	USD
	us-gaap	Gross Profit GrossProfit	3421000000	USD
CY2018	us-gaap	Gross Profit GrossProfit	9876000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	807000000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	226000000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	182000000	USD
CY2016Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	192000000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	607000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	1207000000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	188000000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	209000000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	238000000	USD
	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	364000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	999000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1310000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1507000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1480000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	0	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	309000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	337000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1310000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1816000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	1817000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	2.33
CY2017	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.79
CY2018	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	3.33
CY2016	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	2.30
CY2016Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.69
CY2016Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.56
CY2016Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.60
CY2017Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.91
CY2017	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.74
CY2017Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.60
CY2017Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.67
CY2017Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.78
	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.23
CY2018	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	3.26
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	90000000	USD
CY2016Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	3000000	USD
CY2016Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	16000000	USD
CY2016Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2000000	USD
CY2017Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	21000000	USD
CY2017Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2017Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1000000	USD
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	0	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	1000000	USD
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.26
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.07
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.00
CY2016	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.26
CY2016Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2016Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.05
CY2016Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2017Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2017	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.07
CY2017Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2017Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2017Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	609000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	818000000	USD
CY2016	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	5000000	USD
CY2017	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-46000000	USD
CY2018	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-85000000	USD
CY2016	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	458000000	USD
CY2017	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	635000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	21000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-140000000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	23000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	117000000	USD
CY2016	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-123000000	USD
CY2018	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.00
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	503000000	USD
CY2018	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	613000000	USD
CY2016	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	2000000	USD
CY2017	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-18000000	USD
CY2018	us-gaap	Income Tax Reconciliation Other Reconciling Items IncomeTaxReconciliationOtherReconcilingItems	-37000000	USD
CY2016	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	38000000	USD
CY2017	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	38000000	USD
CY2018	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	44000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	550000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	628000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	366000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-536000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	518000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-196000000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-94000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-213000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	290000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-36000000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-10000000	USD
CY2017	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	193000000	USD
CY2018	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-315000000	USD
CY2016	us-gaap	Increase Decrease In Restricted Cash And Investments IncreaseDecreaseInRestrictedCashAndInvestments	0	USD
CY2017	us-gaap	Increase Decrease In Restricted Cash And Investments IncreaseDecreaseInRestrictedCashAndInvestments	0	USD
CY2016	us-gaap	Increase Decrease In Retail Related Inventories IncreaseDecreaseInRetailRelatedInventories	-86000000	USD
CY2017	us-gaap	Increase Decrease In Retail Related Inventories IncreaseDecreaseInRetailRelatedInventories	-199000000	USD
CY2018	us-gaap	Increase Decrease In Retail Related Inventories IncreaseDecreaseInRetailRelatedInventories	335000000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4200000	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	4100000	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	6700000	shares
CY2018Q1	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	18000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	80000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	72000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	75000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	77000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	76000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	81000000	USD
CY2017Q1	us-gaap	Inventory Net InventoryNet	4864000000	USD
CY2018Q1	us-gaap	Inventory Net InventoryNet	5209000000	USD
CY2016	us-gaap	Investment Income Net InvestmentIncomeNet	13000000	USD
CY2017	us-gaap	Investment Income Net InvestmentIncomeNet	31000000	USD
CY2018	us-gaap	Investment Income Net InvestmentIncomeNet	48000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	798000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	790000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	798000000	USD
CY2017Q1	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	2227000000	USD
CY2018Q1	us-gaap	Leasehold Improvements Gross LeaseholdImprovementsGross	2327000000	USD
CY2017Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13856000000	USD
CY2018Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	13049000000	USD
CY2017Q1	us-gaap	Liabilities Current LiabilitiesCurrent	7122000000	USD
CY2018Q1	us-gaap	Liabilities Current LiabilitiesCurrent	7817000000	USD
CY2017Q1	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1321000000	USD
CY2018Q1	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	811000000	USD
CY2017Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	44000000	USD
CY2018Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	544000000	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	499000000	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	646000000	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	USD
CY2018Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	0	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1536000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1418000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2297000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-526000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-877000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1002000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1343000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2557000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2141000000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	897000000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	229000000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	198000000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	194000000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	607000000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	1228000000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	188000000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	209000000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	239000000	USD
	us-gaap	Net Income Loss NetIncomeLoss	364000000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	1000000000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	807000000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	1207000000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	999000000	USD
CY2016	us-gaap	Noncontrolling Interest Decrease From Deconsolidation NoncontrollingInterestDecreaseFromDeconsolidation	5000000	USD
CY2018	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	2	segments
CY2018	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	2	segments
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	1375000000	USD
CY2016Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	372000000	USD
CY2016Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	289000000	USD
CY2016Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	312000000	USD
CY2017Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	881000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	1854000000	USD
CY2017Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	300000000	USD
CY2017Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	321000000	USD
CY2017Q4	us-gaap	Operating Income Loss OperatingIncomeLoss	350000000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	872000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	1843000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	3046000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	791000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	257000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	396000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	533000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	669000000	USD
CY2018Q1	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	400000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	1000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	1000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Contingent Rentals OperatingLeasesRentExpenseContingentRentals	1000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	797000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	789000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	797000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	783000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	774000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	782000000	USD
CY2016	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	15000000	USD
CY2017	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	16000000	USD
CY2018	us-gaap	Operating Leases Rent Expense Sublease Rentals1 OperatingLeasesRentExpenseSubleaseRentals1	16000000	USD
CY2017Q1	us-gaap	Other Assets Current OtherAssetsCurrent	384000000	USD
CY2018Q1	us-gaap	Other Assets Current OtherAssetsCurrent	438000000	USD
CY2017Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	622000000	USD
CY2018Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	374000000	USD
CY2016	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	-44000000	USD
CY2017	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	10000000	USD
CY2018	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Gain Loss Arising During Period Net Of Tax OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationGainLossArisingDuringPeriodNetOfTax	35000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	67000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	2000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Reclassification Adjustment From Aoci Realized Upon Sale Or Liquidation Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationReclassificationAdjustmentFromAOCIRealizedUponSaleOrLiquidationNetOfTax	0	USD
CY2017Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	704000000	USD
CY2018Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	809000000	USD
CY2016	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	59000000	USD
CY2017	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-17000000	USD
CY2018	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-13000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-28000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-3000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	9000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1000000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	698000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2004000000	USD
CY2016	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	55000000	USD
CY2017	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	USD
CY2018	us-gaap	Payments For Repurchase Of Other Equity PaymentsForRepurchaseOfOtherEquity	0	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	499000000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	505000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	409000000	USD
CY2016	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2281000000	USD
CY2017	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	3045000000	USD
CY2018	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	4325000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	649000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	580000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	688000000	USD
CY2017Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2018Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2017Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	400000	shares
CY2018Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	400000	shares
CY2017Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2018Q1	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2017Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2018Q1	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	0	shares
CY2017Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2018Q1	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2016	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	-51000000	USD
CY2017	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2018	us-gaap	Proceeds From Divestiture Of Businesses Net Of Cash Divested ProceedsFromDivestitureOfBusinessesNetOfCashDivested	0	USD
CY2016Q2	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	183000000	USD
CY2017	us-gaap	Proceeds From Legal Settlements ProceedsFromLegalSettlements	183000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	8000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-1000000	USD
CY2016	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2427000000	USD
CY2017	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	2689000000	USD
CY2018	us-gaap	Proceeds From Sale Maturity And Collections Of Investments ProceedsFromSaleMaturityAndCollectionsOfInvestments	4018000000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	56000000	USD
CY2018	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	2000000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	40000000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	164000000	USD
CY2018	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	156000000	USD
CY2016	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	47000000	USD
CY2017	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	171000000	USD
CY2018	us-gaap	Proceeds From Stock Plans ProceedsFromStockPlans	163000000	USD
CY2017Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8143000000	USD
CY2018Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	8700000000	USD
CY2016Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2346000000	USD
CY2017Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2293000000	USD
CY2018Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2421000000	USD
CY2017Q1	us-gaap	Receivables Net Current ReceivablesNetCurrent	1347000000	USD
CY2018Q1	us-gaap	Receivables Net Current ReceivablesNetCurrent	1049000000	USD
CY2016	us-gaap	Repayments Of Debt RepaymentsOfDebt	28000000	USD
CY2017	us-gaap	Repayments Of Debt RepaymentsOfDebt	394000000	USD
CY2018	us-gaap	Repayments Of Debt RepaymentsOfDebt	46000000	USD
CY2016Q1	us-gaap	Restricted Cash RestrictedCash	185000000	USD
CY2017Q1	us-gaap	Restricted Cash RestrictedCash	193000000	USD
CY2017Q1	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	193000000	USD
CY2018Q1	us-gaap	Restricted Cash And Investments RestrictedCashAndInvestments	199000000	USD
CY2016	us-gaap	Restructuring Charges RestructuringCharges	198000000	USD
CY2017	us-gaap	Restructuring Charges RestructuringCharges	39000000	USD
CY2018	us-gaap	Restructuring Charges RestructuringCharges	10000000	USD
CY2017Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	4399000000	USD
CY2018Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	3270000000	USD
CY2016	us-gaap	Revenue Recognition Milestone Method Revenue Recognized RevenueRecognitionMilestoneMethodRevenueRecognized	46000000	USD
CY2017	us-gaap	Revenue Recognition Milestone Method Revenue Recognized RevenueRecognitionMilestoneMethodRevenueRecognized	37000000	USD
CY2018	us-gaap	Revenue Recognition Milestone Method Revenue Recognized RevenueRecognitionMilestoneMethodRevenueRecognized	40000000	USD
CY2016	us-gaap	Sales Revenue Net SalesRevenueNet	39528000000	USD
CY2016Q2	us-gaap	Sales Revenue Net SalesRevenueNet	8443000000	USD
CY2016Q3	us-gaap	Sales Revenue Net SalesRevenueNet	8533000000	USD
CY2016Q4	us-gaap	Sales Revenue Net SalesRevenueNet	8945000000	USD
CY2017Q1	us-gaap	Sales Revenue Net SalesRevenueNet	13482000000	USD
CY2017	us-gaap	Sales Revenue Net SalesRevenueNet	39403000000	USD
CY2017Q2	us-gaap	Sales Revenue Net SalesRevenueNet	8528000000	USD
CY2017Q3	us-gaap	Sales Revenue Net SalesRevenueNet	8940000000	USD
CY2017Q4	us-gaap	Sales Revenue Net SalesRevenueNet	9320000000	USD
	us-gaap	Sales Revenue Net SalesRevenueNet	15363000000	USD
CY2018	us-gaap	Sales Revenue Net SalesRevenueNet	42151000000	USD
CY2017Q1	us-gaap	Self Insurance Reserve SelfInsuranceReserve	128000000	USD
CY2018Q1	us-gaap	Self Insurance Reserve SelfInsuranceReserve	131000000	USD
CY2017Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	65000000	USD
CY2018Q1	us-gaap	Self Insurance Reserve Current SelfInsuranceReserveCurrent	67000000	USD
CY2017Q1	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	63000000	USD
CY2018Q1	us-gaap	Self Insurance Reserve Noncurrent SelfInsuranceReserveNoncurrent	64000000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	7618000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	7547000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	8023000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	104000000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	108000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	129000000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.023
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.035
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.030
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	0.02
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Maximum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMaximum	0.026
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.001
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.005
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate Minimum ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRateMinimum	0.009
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	22500000	shares
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	19200000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	14000000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	55000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	57000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	163000	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	176000	shares
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	11.59
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	8.04
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	12.52
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	119000000	USD
CY2017Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	6987000	shares
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3069000	shares
CY2017Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	36.61
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	32.32
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	119000000	USD
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	3069000	shares
CY2018Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	32.32
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	40.05
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	43.50
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	44.85
CY2018Q1	us-gaap	Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Number Of Exercisable Options ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions	2434000	shares
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y0M
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y0M
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2018Q1	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	99000000	USD
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P5Y1M6D
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P5Y1M6D
CY2018Q1	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Exercise Price1 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1	30.40
CY2018	us-gaap	Sharebased Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options Weighted Average Remaining Contractual Term2 SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageRemainingContractualTerm2	P3Y6M
CY2017Q1	us-gaap	Short Term Investments ShortTermInvestments	1681000000	USD
CY2018Q1	us-gaap	Short Term Investments ShortTermInvestments	2032000000	USD
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	3931000	shares
CY2016	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	7000000	USD
CY2017	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	7000000	USD
CY2018	us-gaap	Stock Issued During Period Value Employee Stock Purchase Plan StockIssuedDuringPeriodValueEmployeeStockPurchasePlan	7000000	USD
CY2016	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	1000000000	USD
CY2017	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	751000000	USD
CY2018	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2009000000	USD
CY2015Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	5000000000	USD
CY2016Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4378000000	USD
CY2017Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	4709000000	USD
CY2018Q1	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	3612000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-2000000	USD
CY2015Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	410000000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	469000000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	374000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	279000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	13000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	144000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	126000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	9000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	12000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	12000000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	1000000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	1000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Income Tax Penalties Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued	0	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	59000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	55000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	29000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	30000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	11000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	19000000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	89000000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	61000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Accrued UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued	42000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	10000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	9000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Interest On Income Taxes Expense UnrecognizedTaxBenefitsInterestOnIncomeTaxesExpense	10000000	USD
CY2016	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	8000000	USD
CY2017	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2018	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	5000000	USD
CY2016Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	337000000	USD
CY2017Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	346000000	USD
CY2018Q1	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	263000000	USD
CY2018	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	5000000	USD
CY2017Q1	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	52000000	USD
CY2018Q1	us-gaap	Valuation Allowances And Reserves Balance ValuationAllowancesAndReservesBalance	37000000	USD
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	350700000	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	322600000	shares
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	307100000	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	346500000	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	318500000	shares
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	300400000	shares
CY2018	us-gaap	Fiscal Period FiscalPeriod	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Fiscal Year<br clear="none"/> <br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Our fiscal year ends on the Saturday nearest the end of January. Fiscal 2018 included </font><font style="font-family:inherit;font-size:10pt;">53</font><font style="font-family:inherit;font-size:10pt;"> weeks, with the additional week occurring in the fourth quarter, and fiscal 2017 and 2016 each included </font><font style="font-family:inherit;font-size:10pt;">52</font><font style="font-family:inherit;font-size:10pt;"> weeks.</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div></div>
CY2018	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Use of Estimates in the Preparation of Financial Statements</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br clear="none"/></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The preparation of financial statements in conformity with accounting principles generally accepted in the U.S. ("GAAP") requires us to make estimates and assumptions. These estimates and assumptions affect the reported amounts in the consolidated financial statements, as well as the disclosure of contingent liabilities. Future results could be materially affected if actual results were to differ from these estimates and assumptions.</font></div></div>

Files In Submission

Name	View Source	Status
0000764478-18-000013-index-headers.html	Edgar Link	pending
0000764478-18-000013-index.html	Edgar Link	pending
0000764478-18-000013.txt	Edgar Link	pending
0000764478-18-000013-xbrl.zip	Edgar Link	pending
bby-20180203.xml	Edgar Link	completed
bby-20180203.xsd	Edgar Link	pending
bby-20180203_cal.xml	Edgar Link	unprocessable
bby-20180203_def.xml	Edgar Link	unprocessable
bby-20180203_lab.xml	Edgar Link	unprocessable
bby-20180203_pre.xml	Edgar Link	unprocessable
bby-2018ex121.htm	Edgar Link	pending
bby-2018ex211.htm	Edgar Link	pending
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bby-2018ex311.htm	Edgar Link	pending
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bby-2018x10k.htm	Edgar Link	pending
bbylogonew.jpg	Edgar Link	pending
coriebarrysignaturea02.jpg	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
totalreturngrapha01.jpg	Edgar Link	pending

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