$CMI
CUMMINS INC Stock $cmi

$cmi Overview Financials Valuation SEC Filings Company Website

2017 Q4 Form 10-K Financial Statement

#000002617219000009 Filed on February 11, 2019

Income Statement

Concept	2017 Q4	2017 Q3	2017 Q2
Revenue	$5.476B	$5.078B	$4.589B
YoY Change	21.61%	12.15%	6.94%
Cost Of Revenue	$3.944B	$3.827B	$3.457B
YoY Change	26.9%	14.89%	6.86%
Gross Profit	$1.376B	$1.251B	$1.132B
YoY Change	22.86%	4.51%	7.2%
Gross Profit Margin	25.13%	24.64%	24.67%
Selling, General & Admin	$633.0M	$606.0M	$547.0M
YoY Change	23.39%	15.65%	11.63%
% of Gross Profit	46.0%	48.44%	48.32%
Research & Development	$213.0M	$175.0M	$158.0M
YoY Change	35.67%	12.9%	-4.82%
% of Gross Profit	15.48%	13.99%	13.96%
Depreciation & Amortization	$148.0M	$145.0M	$139.0M
YoY Change	12.98%	10.69%	8.59%
% of Gross Profit	10.76%	11.59%	12.28%
Operating Expenses	$846.0M	$781.0M	$705.0M
YoY Change	26.27%	15.02%	7.47%
Operating Profit	$622.0M	$586.0M	$540.0M
YoY Change	61.98%	3.35%	14.89%
Interest Expense	$18.00M	$21.00M	$18.00M
YoY Change	12.5%	31.25%	-5.26%
% of Operating Profit	2.89%	3.58%	3.33%
Other Income/Expense, Net	$14.00M	$29.00M	$24.00M
YoY Change	75.0%	61.11%	200.0%
Pretax Income	$622.0M	$599.0M	$548.0M
YoY Change	62.83%	4.17%	17.85%
Income Tax	$165.0M	$158.0M	$143.0M
% Of Pretax Income	26.53%	26.38%	26.09%
Net Earnings	$457.0M	$441.0M	$405.0M
YoY Change	52.33%	3.28%	21.62%
Net Earnings / Revenue	8.35%	8.68%	8.83%
Basic Earnings Per Share	-$1.66	$2.53	$2.36
Diluted Earnings Per Share	-$1.65	$2.53	$2.36
COMMON SHARES
Basic Shares Outstanding	166.3M shares	167.3M shares	167.5M shares
Diluted Shares Outstanding	167.0M shares	167.8M shares	168.0M shares

Balance Sheet

Concept	2017 Q4	2017 Q3	2017 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.444B	$1.467B	$1.467B
YoY Change	-3.8%	14.61%	15.15%
Cash & Equivalents	$1.369B	$1.293B	$1.322B
Short-Term Investments	$154.0M	$174.0M	$145.0M
Other Short-Term Assets	$656.0M	$600.0M	$551.0M
YoY Change	9.33%	9.29%	7.2%
Inventory	$3.166B	$2.982B	$2.894B
Prepaid Expenses
Receivables	$3.810B	$3.553B	$3.247B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$8.928B	$8.602B	$8.159B
YoY Change	15.84%	12.74%	9.25%
LONG-TERM ASSETS
Property, Plant & Equipment	$3.927B	$3.787B	$3.802B
YoY Change	3.34%	2.27%	2.42%
Goodwill	$1.082B	$488.0M	$482.0M
YoY Change	125.42%	1.46%	-0.62%
Intangibles	$973.0M	$339.0M	$345.0M
YoY Change	193.07%	3.35%	0.29%
Long-Term Investments	$1.213B	$1.162B	$1.059B
YoY Change	12.63%	8.29%	0.57%
Other Assets	$966.0M	$1.030B	$1.002B
YoY Change	-4.83%	-1.06%	0.0%
Total Long-Term Assets	$9.147B	$7.658B	$7.475B
YoY Change	25.23%	3.63%	1.58%
TOTAL ASSETS
Total Short-Term Assets	$8.928B	$8.602B	$8.159B
Total Long-Term Assets	$9.147B	$7.658B	$7.475B
Total Assets	$18.08B	$16.26B	$15.63B
YoY Change	20.41%	8.26%	5.44%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$2.579B	$2.300B	$2.168B
YoY Change	39.1%	26.03%	19.85%
Accrued Expenses	$915.0M	$1.841B	$1.627B
YoY Change	-46.52%	12.6%	10.91%
Deferred Revenue
YoY Change
Short-Term Debt	$578.0M	$188.0M	$322.0M
YoY Change	80.06%	-14.16%	92.81%
Long-Term Debt Due	$63.00M	$45.00M	$47.00M
YoY Change	80.0%	18.42%	-4.08%
Total Short-Term Liabilities	$5.677B	$4.894B	$4.662B
YoY Change	31.26%	17.93%	19.02%
LONG-TERM LIABILITIES
Long-Term Debt	$1.615B	$1.564B	$1.576B
YoY Change	1.38%	-3.1%	-2.35%
Other Long-Term Liabilities	$134.0M	$1.980B	$1.920B
YoY Change	-2.19%	-3.93%	-5.7%
Total Long-Term Liabilities	$134.0M	$3.544B	$3.496B
YoY Change	-2.19%	-3.56%	-4.22%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.677B	$4.894B	$4.662B
Total Long-Term Liabilities	$134.0M	$3.544B	$3.496B
Total Liabilities	$9.911B	$8.438B	$8.158B
YoY Change	26.46%	7.83%	7.81%
SHAREHOLDERS EQUITY
Retained Earnings	$11.46B	$11.52B	$11.27B
YoY Change	3.84%	7.47%	7.56%
Common Stock	$2.210B	$2.184B	$2.163B
YoY Change	2.65%	-0.55%	4.19%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$4.905B	$4.586B	$4.524B
YoY Change	9.27%	3.71%	7.64%
Treasury Stock Shares	56.70M shares	54.70M shares	54.40M shares
Shareholders Equity	$7.259B	$7.493B	$7.165B
YoY Change
Total Liabilities & Shareholders Equity	$18.08B	$16.26B	$15.63B
YoY Change	20.41%	8.26%	5.44%

Cashflow Statement

Concept	2017 Q4	2017 Q3	2017 Q2
OPERATING ACTIVITIES
Net Income	$457.0M	$441.0M	$405.0M
YoY Change	52.33%	3.28%	21.62%
Depreciation, Depletion And Amortization	$148.0M	$145.0M	$139.0M
YoY Change	12.98%	10.69%	8.59%
Cash From Operating Activities	$645.0M	$447.0M	$379.0M
YoY Change	11.98%	-5.1%	41.95%
INVESTING ACTIVITIES
Capital Expenditures	-$119.0M	-$114.0M	$81.00M
YoY Change	-13.77%	-13.64%	14.08%
Acquisitions
YoY Change
Other Investing Activities	-$507.0M	-$19.00M	-$4.000M
YoY Change	731.15%	-114.73%	33.33%
Cash From Investing Activities	-$626.0M	-$133.0M	-$27.00M
YoY Change	214.57%	4333.33%	-93.04%
FINANCING ACTIVITIES
Cash Dividend Paid			$171.0M
YoY Change			0.59%
Common Stock Issuance & Retirement, Net			$51.00M
YoY Change			-91.13%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-56.00M	-380.0M	-164.0M
YoY Change	-62.42%	46.15%	-74.21%
NET CHANGE
Cash From Operating Activities	645.0M	447.0M	379.0M
Cash From Investing Activities	-626.0M	-133.0M	-27.00M
Cash From Financing Activities	-56.00M	-380.0M	-164.0M
Net Change In Cash	-37.00M	-66.00M	188.0M
YoY Change	-116.23%	-131.73%	-124.83%
FREE CASH FLOW
Cash From Operating Activities	$645.0M	$447.0M	$379.0M
Capital Expenditures	-$119.0M	-$114.0M	$81.00M
Free Cash Flow	$764.0M	$561.0M	$298.0M
YoY Change	7.0%	-6.97%	52.04%

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	--12-31
CY2018	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2018	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2018
CY2018	dei	Document Period End Date DocumentPeriodEndDate	2018-12-31
CY2018	dei	Entity Central Index Key EntityCentralIndexKey	0000026172
CY2018	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2018	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2018	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2018	dei	Entity Shell Company EntityShellCompany	false
CY2018	dei	Entity Small Business EntitySmallBusiness	false
CY2018	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2018	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2017Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2018Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	500000000	shares
CY2017Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	500000	shares
CY2018Q4	us-gaap	Common Stock Shares Held In Employee Trust Shares CommonStockSharesHeldInEmployeeTrustShares	400000	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	222400000	shares
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	222400000	shares
CY2017Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	56700000	shares
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	64400000	shares
CY2018	dei	Document Type DocumentType	10-K
CY2018	dei	Entity Registrant Name EntityRegistrantName	CUMMINS INC.
CY2018Q3	dei	Entity Public Float EntityPublicFloat	21700000000	USD
CY2019Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	157338874	shares
CY2019Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2018	us-gaap	Revenues Revenues	23771000000	USD
CY2017	us-gaap	Revenues Revenues	20428000000	USD
CY2016	us-gaap	Revenues Revenues	17509000000	USD
CY2018	us-gaap	Cost Of Revenue CostOfRevenue	18034000000	USD
CY2017	us-gaap	Cost Of Revenue CostOfRevenue	15328000000	USD
CY2016	us-gaap	Cost Of Revenue CostOfRevenue	13051000000	USD
CY2018	us-gaap	Gross Profit GrossProfit	5737000000	USD
CY2017	us-gaap	Gross Profit GrossProfit	5100000000	USD
CY2016	us-gaap	Gross Profit GrossProfit	4458000000	USD
CY2018	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2437000000	USD
CY2017	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2429000000	USD
CY2016	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	2099000000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	902000000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	754000000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	637000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	394000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	357000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	301000000	USD
CY2018	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	0	USD
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CY2016	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	138000000	USD
CY2018	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-6000000	USD
CY2017	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	65000000	USD
CY2018	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1267000000	USD
CY2017	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1174000000	USD
CY2016	us-gaap	Revenue From Related Parties RevenueFromRelatedParties	1028000000	USD
CY2016	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-5000000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	2786000000	USD
CY2017	us-gaap	Operating Income Loss OperatingIncomeLoss	2334000000	USD
CY2016	us-gaap	Operating Income Loss OperatingIncomeLoss	1880000000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	35000000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	18000000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	114000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	81000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	69000000	USD
CY2018	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	46000000	USD
CY2017	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	94000000	USD
CY2016	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	96000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2753000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2365000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1930000000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	566000000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1371000000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	474000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2187000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	994000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	1456000000	USD
CY2018	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	46000000	USD
CY2017	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-5000000	USD
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CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.20
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.99
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CY2018	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-356000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	335000000	USD
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CY2018	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	0	USD
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CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	338000000	USD
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CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	921000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1303000000	USD
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CY2018Q4	us-gaap	Goodwill Goodwill	1126000000	USD
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CY2018Q4	us-gaap	Commercial Paper CommercialPaper	780000000	USD
CY2017Q4	us-gaap	Commercial Paper CommercialPaper	298000000	USD
CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	679000000	USD
CY2017Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	811000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	654000000	USD
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CY2017Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	500000000	USD
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CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	915000000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	45000000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	63000000	USD
CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6384000000	USD
CY2017Q4	us-gaap	Liabilities Current LiabilitiesCurrent	5677000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1597000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1588000000	USD
CY2018Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	532000000	USD
CY2017Q4	us-gaap	Defined Benefit Pension Plan Liabilities Noncurrent DefinedBenefitPensionPlanLiabilitiesNoncurrent	619000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	740000000	USD
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CY2018Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	658000000	USD
CY2017Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	604000000	USD
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CY2017Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	957000000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	10803000000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	9911000000	USD
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CY2017Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
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CY2017Q4	us-gaap	Common Stock Value Outstanding CommonStockValueOutstanding	2210000000	USD
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CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	11464000000	USD
CY2018Q4	us-gaap	Treasury Stock Value TreasuryStockValue	6028000000	USD
CY2017Q4	us-gaap	Treasury Stock Value TreasuryStockValue	4905000000	USD
CY2018Q4	us-gaap	Common Stock Issued Employee Stock Trust CommonStockIssuedEmployeeStockTrust	5000000	USD
CY2017Q4	us-gaap	Common Stock Issued Employee Stock Trust CommonStockIssuedEmployeeStockTrust	7000000	USD
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CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1503000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	7348000000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	7259000000	USD
CY2018Q4	us-gaap	Minority Interest MinorityInterest	911000000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	905000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8259000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8164000000	USD
CY2018Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	19062000000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	18075000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2187000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	994000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	1456000000	USD
CY2018	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	15000000	USD
CY2017	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	820000000	USD
CY2016	us-gaap	Adjustments Noncash Items To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	0	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	611000000	USD
CY2017	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	583000000	USD
CY2016	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	530000000	USD
CY2018	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-97000000	USD
CY2017	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-54000000	USD
CY2016	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	50000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	93000000	USD
CY2017	us-gaap	Pension Contributions PensionContributions	161000000	USD
CY2016	us-gaap	Pension Contributions PensionContributions	92000000	USD
CY2018	us-gaap	Other Postretirement Benefits Payments OtherPostretirementBenefitsPayments	19000000	USD
CY2017	us-gaap	Other Postretirement Benefits Payments OtherPostretirementBenefitsPayments	5000000	USD
CY2016	us-gaap	Other Postretirement Benefits Payments OtherPostretirementBenefitsPayments	25000000	USD
CY2018	us-gaap	Share Based Compensation ShareBasedCompensation	53000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	123000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments Net Of Dividends Or Distributions IncomeLossFromEquityMethodInvestmentsNetOfDividendsOrDistributions	46000000	USD
CY2018	us-gaap	Pension Contributions PensionContributions	-49000000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	41000000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	32000000	USD
CY2018	us-gaap	Loss Contingency Accrual Carrying Value Period Increase Decrease LossContingencyAccrualCarryingValuePeriodIncreaseDecrease	-62000000	USD
CY2017	us-gaap	Loss Contingency Accrual Carrying Value Period Increase Decrease LossContingencyAccrualCarryingValuePeriodIncreaseDecrease	5000000	USD
CY2016	us-gaap	Loss Contingency Accrual Carrying Value Period Increase Decrease LossContingencyAccrualCarryingValuePeriodIncreaseDecrease	122000000	USD
CY2018	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	-26000000	USD
CY2017	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	52000000	USD
CY2016	us-gaap	Payments For Proceeds From Life Insurance Policies PaymentsForProceedsFromLifeInsurancePolicies	22000000	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	46000000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-71000000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	55000000	USD
CY2018	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	363000000	USD
CY2017	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	508000000	USD
CY2016	us-gaap	Increase Decrease In Accounts And Notes Receivable IncreaseDecreaseInAccountsAndNotesReceivable	265000000	USD
CY2018	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	695000000	USD
CY2017	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	407000000	USD
CY2016	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	4000000	USD
CY2018	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	162000000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	12000000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-14000000	USD
CY2018	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	302000000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	639000000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	188000000	USD
CY2018	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	433000000	USD
CY2017	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	378000000	USD
CY2016	us-gaap	Increase Decrease In Accrued Liabilities IncreaseDecreaseInAccruedLiabilities	-195000000	USD
CY2018	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-75000000	USD
CY2017	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-241000000	USD
CY2016	us-gaap	Increase Decrease In Other Noncurrent Assets And Liabilities Net IncreaseDecreaseInOtherNoncurrentAssetsAndLiabilitiesNet	-200000000	USD
CY2018	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-164000000	USD
CY2017	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	173000000	USD
CY2016	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-51000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2378000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	2277000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1939000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	709000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	506000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	531000000	USD
CY2018	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	75000000	USD
CY2017	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	81000000	USD
CY2016	us-gaap	Payments To Develop Software PaymentsToDevelopSoftware	63000000	USD
CY2018	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	20000000	USD
CY2017	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	110000000	USD
CY2016	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	14000000	USD
CY2018	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	37000000	USD
CY2017	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	66000000	USD
CY2016	us-gaap	Payments To Acquire Equity Method Investments PaymentsToAcquireEquityMethodInvestments	41000000	USD
CY2018	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	70000000	USD
CY2017	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	662000000	USD
CY2016	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	94000000	USD
CY2018	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	368000000	USD
CY2017	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	194000000	USD
CY2016	us-gaap	Payments To Acquire Marketable Securities PaymentsToAcquireMarketableSecurities	478000000	USD
CY2018	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	331000000	USD
CY2017	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	266000000	USD
CY2016	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	306000000	USD
CY2018	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2017	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	0	USD
CY2016	us-gaap	Proceeds From Sale Of Equity Method Investments ProceedsFromSaleOfEquityMethodInvestments	60000000	USD
CY2018	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	102000000	USD
CY2017	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	-76000000	USD
CY2016	us-gaap	Payments For Proceeds From Derivative Instrument Investing Activities PaymentsForProceedsFromDerivativeInstrumentInvestingActivities	102000000	USD
CY2018	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-36000000	USD
CY2017	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-5000000	USD
CY2016	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-12000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-974000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1052000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-917000000	USD
CY2018	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	36000000	USD
CY2017	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	6000000	USD
CY2016	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	111000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	482000000	USD
CY2017	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	86000000	USD
CY2016	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	212000000	USD
CY2018	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	62000000	USD
CY2017	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	60000000	USD
CY2016	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	163000000	USD
CY2018	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	1000000	USD
CY2017	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	12000000	USD
CY2016	us-gaap	Proceeds From Repayments Of Short Term Debt ProceedsFromRepaymentsOfShortTermDebt	19000000	USD
CY2018	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	30000000	USD
CY2017	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	29000000	USD
CY2016	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	65000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	718000000	USD
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	701000000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	676000000	USD
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1140000000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1369000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1120000000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1711000000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1303000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	451000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	778000000	USD
CY2018	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	0	USD
CY2017	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	0	USD
CY2016	us-gaap	Proceeds From Payments To Minority Shareholders ProceedsFromPaymentsToMinorityShareholders	-98000000	USD
CY2018	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	31000000	USD
CY2017	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	63000000	USD
CY2016	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	25000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1400000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1074000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1413000000	USD
CY2018	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-70000000	USD
CY2017	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	98000000	USD
CY2016	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-200000000	USD
CY2018	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-66000000	USD
CY2017	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	249000000	USD
CY2016	us-gaap	Net Cash Provided By Used In Continuing Operations NetCashProvidedByUsedInContinuingOperations	-591000000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1369000000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1120000000	USD
CY2015Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7750000000	USD
CY2016	us-gaap	Profit Loss ProfitLoss	1456000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-490000000	USD
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6000000	USD
CY2016	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	26000000	USD
CY2016	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	778000000	USD
CY2016	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	676000000	USD
CY2016	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	65000000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	19000000	USD
CY2016	us-gaap	Minority Interest Decrease From Redemptions MinorityInterestDecreaseFromRedemptions	98000000	USD
CY2016	us-gaap	Stockholders Equity Other StockholdersEquityOther	-24000000	USD
CY2016Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	7174000000	USD
CY2017	cmi	Tax Cutsand Jobs Actof2017 Reclassificationfrom Aoc Ito Retained Earnings TaxCutsandJobsActof2017ReclassificationfromAOCItoRetainedEarnings	126000000	USD
CY2017	us-gaap	Profit Loss ProfitLoss	994000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	338000000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6000000	USD
CY2017	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	18000000	USD
CY2017	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	451000000	USD
CY2017	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	701000000	USD
CY2017	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	29000000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	38000000	USD
CY2017	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	600000000	USD
CY2017	us-gaap	Stockholders Equity Other StockholdersEquityOther	-51000000	USD
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8164000000	USD
CY2018	us-gaap	New Accounting Pronouncement Or Change In Accounting Principle Effect Of Adoption Quantification NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification	30000000	USD
CY2018	us-gaap	Profit Loss ProfitLoss	2187000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-333000000	USD
CY2018	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	12000000	USD
CY2018	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	17000000	USD
CY2018	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1140000000	USD
CY2018	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	718000000	USD
CY2018	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	30000000	USD
CY2018	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	13000000	USD
CY2018	us-gaap	Stockholders Equity Other StockholdersEquityOther	-57000000	USD
CY2018Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	8259000000	USD
CY2018	cmi	Company Owned And Independent Distributor Locations Number CompanyOwnedAndIndependentDistributorLocationsNumber	600	location
CY2018	cmi	Dealer Locations Number DealerLocationsNumber	7600	location
CY2018	cmi	Countries And Territories Number CountriesAndTerritoriesNumber	190	country
CY2018	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	Reclassifications<span style="font-family:inherit;font-size:10pt;">Certain amounts for </span><span style="font-family:inherit;font-size:10pt;">2017</span><span style="font-family:inherit;font-size:10pt;"> and </span><span style="font-family:inherit;font-size:10pt;">2016</span> have been reclassified to conform to the current year presentation.
CY2018	us-gaap	Use Of Estimates UseOfEstimates	Use of Estimates in the Preparation of the Financial Statements<div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect reported amounts presented and disclosed in our </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Consolidated Financial Statements</span><span style="font-family:inherit;font-size:10pt;">. Significant estimates and assumptions in these </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Consolidated Financial Statements</span><span style="font-family:inherit;font-size:10pt;font-style:normal;"> require the exercise of judgment and are used for, but not limited to, estimates of future cash flows and other assumptions associated with goodwill and long-lived asset impairment tests, useful lives for depreciation and amortization, warranty programs, determination of discount rate and other assumptions for pensions </span></div><div style="line-height:120%;padding-bottom:10px;padding-top:10px;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;font-style:normal;">and other postretirement benefit costs, income taxes and deferred tax valuation allowances, lease classification and contingencies. Due to the inherent uncertainty involved in making estimates, actual results reported in future periods may be different from these estimates.</span></div>
CY2018	us-gaap	Revenue Recognition Sales Of Goods RevenueRecognitionSalesOfGoods	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Revenue Recognition Sales of Products</span><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;"> </span><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We sell to customers either through long-term arrangements or standalone purchase orders. Our long-term arrangements generally do not include committed volumes until underlying purchase orders are issued. Our performance obligations vary by contract, but may include diesel and natural gas engines and engine-related component products, including filtration, aftertreatment, turbochargers, fuel systems, controls systems, air handling systems, transmissions, power generation systems and construction related projects, batteries, battery systems, parts, maintenance services and extended warranty coverage.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Typically, we recognize revenue on the products we sell at a point in time, generally in accordance with shipping terms, which reflects the transfer of control to the customer. Since control of construction projects transfer to the customer as the work is performed, revenue on these projects is recognized based on the percentage of inputs incurred to date compared to the total expected cost of inputs, which is reflective of the value transferred to the customer. Revenue is recognized under long-term maintenance and other service agreements over the term of the agreement as underlying services are performed based on the percentage of the cost of services provided to date compared to the total expected cost of services to be provided under the contract. Sales of extended coverage are recognized based on the pattern of expected costs over the extended coverage period or, if such a pattern is unknown, on a straight-line basis over the coverage period as the customer is considered to benefit from our stand ready obligation over the coverage period. In all cases, we believe cost incurred is the most representative depiction of the extent of service performed to date on a particular contract.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our arrangements may include the act of shipping products to our customers after the performance obligation related to that product has been satisfied. We have elected to account for shipping and handling as activities to fulfill the promise to transfer goods and have not allocated revenue to the shipping activity. All related shipping and handling costs are accrued at the time of shipment.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our sales arrangements may include the collection of sales and other similar taxes that are then remitted to the related taxing authority. We have elected to present the amounts collected for these taxes net of the related tax expense rather than presenting them as additional revenue.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We grant credit limits and terms to customers based upon traditional practices and competitive conditions. Typical terms vary by market, but payments are generally due in 90 days or less from invoicing for most of our product and service sales, while payments on construction and other similar arrangements may be due on an installment basis.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">For contracts where the time between cash collection and performance is less than one year, we have elected to use the practical expedient that allows us to ignore the possible existence of a significant financing component within the contract. For contracts where this time period exceeds one year, generally the timing difference is the result of business concerns other than financing. We do have a limited amount of customer financing for which we charge or impute interest, but such amounts are immaterial to our</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Consolidated Statements of Income</span>.
CY2018	us-gaap	Revenue Recognition Incentives RevenueRecognitionIncentives	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Sales Incentives</span><span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;"> </span><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">We provide various sales incentives to both our distribution network and OEM customers. These programs are designed to promote the sale of our products in the channel or encourage the usage of our products by OEM customers. When there is uncertainty surrounding these sales incentives, we may limit the amount of revenue we recognize under a contract until the uncertainty has been resolved. Sales incentives primarily fall into three categories:</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><span style="font-family:inherit;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Volume rebates;</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><span style="font-family:inherit;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Market share rebates; and</span></div></td></tr></table><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman; font-size:10pt;"><tr><td style="width:48px;"/><td/></tr><tr><td style="vertical-align:top"><div style="line-height:120%;font-size:10pt;padding-left:24px;"><span style="font-family:inherit;font-size:10pt;">•</span></div></td><td style="vertical-align:top;"><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Aftermarket rebates.</span></div></td></tr></table><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">For volume rebates, we provide certain customers with rebate opportunities for attaining specified volumes during a particular quarter or year. We consider the expected amount of these rebates at the time of the original sale as we determine the overall transaction price. We update our assessment of the amount of rebates that will be earned quarterly based on our best estimate of the volume levels the customer will reach during the measurement period. For market share rebates, we provide certain customers with rebate opportunities based on the percentage of their production that utilizes our product. These rebates are typically measured either quarterly or annually and we assess them at least quarterly to determine our current estimates of amounts expected to be earned. These estimates are considered in the determination of transaction price at the time of the original sale based on the current market shares, with adjustments made as the level changes. For aftermarket rebates, we provide incentives to promote sales to certain dealers and end-markets. These rebates are typically paid on a quarterly, or more frequent basis. At the time of the sales, we consider the expected amount of these rebates when determining the overall transaction price. Estimates are adjusted at the end of each quarter based on the amounts yet to be paid. These estimates are based on historical experience with the particular program.</span>
CY2018	us-gaap	Revenue Recognition Sales Returns RevenueRecognitionSalesReturns	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Sales Returns</span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">The initial determination of the transaction price may also be impacted by expected product returns. Rights of return do not exist for the majority of our sales other than for quality issues. We do offer certain return rights in our aftermarket business, where some aftermarket customers are permitted to return small amounts of parts and filters each year, and in our power generation business, which sells portable generators to retail customers. An estimate of future returns is accounted for at the time of sale as a reduction in the overall contract transaction price based on historical return rates.</span>
CY2018	us-gaap	Revenue Recognition Multiple Element Arrangements RevenueRecognitionMultipleElementArrangements	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Multiple Performance Obligations</span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><span style="font-family:inherit;font-size:10pt;">Our sales arrangements may include multiple performance obligations. We identify each of the material performance obligations in these arrangements and allocate the total transaction price to each performance obligation based on its relative selling price. In most cases, the individual performance obligations are also sold separately and we use that price as the basis for allocating revenue to the included performance obligations. When an arrangement includes multiple performance obligations and invoicing to the customer does not match the allocated portion of the transaction price, unbilled revenue or deferred revenue is recorded reflecting that difference. Unbilled and deferred revenue are discussed in more detail below.</span>
CY2018	us-gaap	Revenue Recognition Long Term Contracts RevenueRecognitionLongTermContracts	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Long-term Contracts</span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Our long-term maintenance agreements often include a variable component of the transaction price. We are generally compensated under such arrangements on a cost per hour of usage basis. We typically can estimate the expected usage over the life of the contract, but reassess the transaction price each quarter and adjust our recognized revenue accordingly. Certain maintenance agreements apply to generators used to provide standby power, which have limited expectations of usage. These agreements may include monthly minimum payments, providing some certainty to the total transaction price. For these particular contracts that relate to standby power, we limit revenue recognized to date to an amount representing the total minimums earned to date under the contract plus any cumulative billings earned in excess of the minimums. We reassess the estimates of progress and transaction price on a quarterly basis. For prime power arrangements, revenue is not subject to such a constraint and is generally equal to the current estimate on a percentage of completion basis times the total expected revenue under the contract.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">Most of our contracts are for a period of less than one year. We have certain long-term maintenance agreements, construction contracts and extended warranty coverage arrangements that span a period in excess of one year. The aggregate amount of the transaction price for long-term maintenance agreements and construction contracts allocated to performance obligations that have not been satisfied as of</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;">December 31, 2018,</span><span style="font-family:inherit;font-size:10pt;"> was</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;"><span>$710 million</span></span><span style="font-family:inherit;font-size:10pt;">. We expect to recognize the related revenue of</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;"><span>$211 million</span></span><span style="font-family:inherit;font-size:10pt;"> over the next</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;"><span>12 months</span></span><span style="font-family:inherit;font-size:10pt;"> and</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;"><span>$499 million</span></span><span style="font-family:inherit;font-size:10pt;"> over periods up to </span><span style="font-family:inherit;font-size:10pt;"><span>10 years</span></span><span style="font-family:inherit;font-size:10pt;">. See</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;">NOTE 9</span><span style="font-family:inherit;font-size:10pt;"> ,"</span><span style="font-family:inherit;font-size:10pt;">PRODUCT WARRANTY LIABILITY</span><span style="font-family:inherit;font-size:10pt;">," for additional disclosures on extended warranty coverage arrangements. Our other contracts generally are for a duration of less than one year, include payment terms that correspond to the timing of cost incurred when providing goods and services to our customers or represent sale-based royalties.</span><span style="font-family:inherit;font-size:10pt;"> </span></div><br/>
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	710000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	211000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P12M
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	499000000	USD
CY2018Q4	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P10Y
CY2018	us-gaap	Revenue Recognition Deferred Revenue RevenueRecognitionDeferredRevenue	<span style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Deferred and Unbilled Revenue</span><span style="font-family:inherit;font-size:10pt;font-weight:bold;"> </span><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;"><br/></span></div><div style="line-height:120%;text-align:left;font-size:10pt;"><span style="font-family:inherit;font-size:10pt;">The timing of our billing does not always match the timing of our revenue recognition. We record deferred revenue when we are entitled to bill a customer in advance of when we are permitted to recognize revenue. Deferred revenue may arise in construction contracts, where billings may occur in advance of performance or in accordance with specific milestones. Deferred revenue may also occur in long-term maintenance contracts, where billings are often based on usage of the underlying equipment, which generally follows a predictable pattern that often will result in the accumulation of collections in advance of </span></div><span style="font-family:inherit;font-size:10pt;">our performance of the related maintenance services. Finally, deferred revenue exists in our extended coverage contracts, where the cash is collected prior to the commencement of the coverage period. Deferred revenue is included in our</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;font-style:italic;">Consolidated Balance Sheets</span><span style="font-family:inherit;font-size:10pt;"> </span><span style="font-family:inherit;font-size:10pt;">as a component of current liabilities for the amount expected to be recognized in revenue in a period of less than one year and long-term liabilities for the amount expected to be recognized as revenue in a period beyond one year. Deferred revenue is recognized as revenue when control of the underlying product, project or service passes to the customer under the related contract.</span>
CY2018Q4	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	64000000	USD
CY2018Q1	us-gaap	Contract With Customer Asset Gross ContractWithCustomerAssetGross	6000000	USD
CY2018Q4	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1156000000	USD
CY2018Q1	us-gaap	Contract With Customer Liability ContractWithCustomerLiability	1052000000	USD
CY2018	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	-361000000	USD
CY2018Q1	us-gaap	Contract With Customer Liability Revenue Recognized ContractWithCustomerLiabilityRevenueRecognized	0	USD
CY2018	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-34000000	USD
CY2017	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-6000000	USD
CY2016	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-12000000	USD
CY2018	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	699000000	USD
CY2017	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	622000000	USD
CY2016	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	430000000	USD
CY2018	us-gaap	Interest Paid Net InterestPaidNet	114000000	USD
CY2017	us-gaap	Interest Paid Net InterestPaidNet	82000000	USD
CY2016	us-gaap	Interest Paid Net InterestPaidNet	68000000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	15000000	USD
CY2017Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	16000000	USD
CY2018Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.13
CY2017Q4	us-gaap	Percentage Of Lifo Inventory PercentageOfLIFOInventory	0.12
CY2018	us-gaap	Depreciation Depreciation	455000000	USD
CY2017	us-gaap	Depreciation Depreciation	467000000	USD
CY2016	us-gaap	Depreciation Depreciation	434000000	USD
CY2018Q3	us-gaap	Reporting Unit Percentage Of Fair Value In Excess Of Carrying Amount ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount	0.21
CY2018Q4	us-gaap	Goodwill Goodwill	1126000000	USD
CY2018	cmi	Researchand Development Expense Excluding Contractreimbursement ResearchandDevelopmentExpenseExcludingContractreimbursement	894000000	USD
CY2017	cmi	Researchand Development Expense Excluding Contractreimbursement ResearchandDevelopmentExpenseExcludingContractreimbursement	734000000	USD
CY2016	cmi	Researchand Development Expense Excluding Contractreimbursement ResearchandDevelopmentExpenseExcludingContractreimbursement	616000000	USD
CY2018	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	120000000	USD
CY2017	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	137000000	USD
CY2016	us-gaap	Research And Development Arrangement Contract To Perform For Others Compensation Earned ResearchAndDevelopmentArrangementContractToPerformForOthersCompensationEarned	131000000	USD
CY2018	us-gaap	Revenues Revenues	23771000000	USD
CY2017	us-gaap	Revenues Revenues	20428000000	USD
CY2016	us-gaap	Revenues Revenues	17509000000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1222000000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1156000000	USD
CY2018Q4	cmi	Undistributed Equity Investee Earnings UndistributedEquityInvesteeEarnings	743000000	USD
CY2018	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	242000000	USD
CY2017	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	219000000	USD
CY2016	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	212000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	336000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	308000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	260000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	394000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	357000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	301000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	7352000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	7050000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Revenue EquityMethodInvestmentSummarizedFinancialInformationRevenue	5654000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Gross Profit Loss EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss	1373000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Gross Profit Loss EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss	1422000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Gross Profit Loss EquityMethodInvestmentSummarizedFinancialInformationGrossProfitLoss	1182000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Income Loss From Continuing Operations Before Extraordinary Items EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems	647000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Income Loss From Continuing Operations Before Extraordinary Items EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems	680000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Income Loss From Continuing Operations Before Extraordinary Items EquityMethodInvestmentSummarizedFinancialInformationIncomeLossFromContinuingOperationsBeforeExtraordinaryItems	499000000	USD
CY2018	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	336000000	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	308000000	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	260000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	394000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	357000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	301000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	3401000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Assets EquityMethodInvestmentSummarizedFinancialInformationCurrentAssets	3416000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	1449000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Assets EquityMethodInvestmentSummarizedFinancialInformationNoncurrentAssets	1379000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	2669000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Current Liabilities EquityMethodInvestmentSummarizedFinancialInformationCurrentLiabilities	2567000000	USD
CY2018Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	218000000	USD
CY2017Q4	us-gaap	Equity Method Investment Summarized Financial Information Noncurrent Liabilities EquityMethodInvestmentSummarizedFinancialInformationNoncurrentLiabilities	237000000	USD
CY2018Q4	cmi	Equity Method Investment Summarized Financial Information Net Assets EquityMethodInvestmentSummarizedFinancialInformationNetAssets	1963000000	USD
CY2017Q4	cmi	Equity Method Investment Summarized Financial Information Net Assets EquityMethodInvestmentSummarizedFinancialInformationNetAssets	1991000000	USD
CY2018Q4	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	1144000000	USD
CY2017Q4	us-gaap	Equity Method Investment Underlying Equity In Net Assets EquityMethodInvestmentUnderlyingEquityInNetAssets	1116000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1239000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	1237000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	995000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1514000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	1128000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	935000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2753000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2365000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1930000000	USD
CY2018	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	303000000	USD
CY2017	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	355000000	USD
CY2016	us-gaap	Current Federal State And Local Tax Expense Benefit CurrentFederalStateAndLocalTaxExpenseBenefit	211000000	USD
CY2018	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	348000000	USD
CY2017	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	289000000	USD
CY2016	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	213000000	USD
CY2018	cmi	Current Tax Cutsand Jobs Act2017 Incomplete Accounting Provisional Income Tax Expense CurrentTaxCutsandJobsAct2017IncompleteAccountingProvisionalIncomeTaxExpense	153000000	USD
CY2017	cmi	Current Tax Cutsand Jobs Act2017 Incomplete Accounting Provisional Income Tax Expense CurrentTaxCutsandJobsAct2017IncompleteAccountingProvisionalIncomeTaxExpense	349000000	USD
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CY2017Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	391000000	USD
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CY2016	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	104000000	USD
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CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1687000000	USD
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1414000000	USD
CY2015Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1404000000	USD
CY2018	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	918000000	USD
CY2017	us-gaap	Standard Product Warranty Accrual Warranties Issued StandardProductWarrantyAccrualWarrantiesIssued	557000000	USD
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CY2017	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	240000000	USD
CY2016	us-gaap	Deferred Revenue Additions DeferredRevenueAdditions	231000000	USD
CY2018	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	443000000	USD
CY2017	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	398000000	USD
CY2016	us-gaap	Product Warranty Accrual Payments ProductWarrantyAccrualPayments	385000000	USD
CY2018	us-gaap	Recognition Of Deferred Revenue RecognitionOfDeferredRevenue	-244000000	USD
CY2017	us-gaap	Recognition Of Deferred Revenue RecognitionOfDeferredRevenue	-219000000	USD
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CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2208000000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1687000000	USD
CY2016Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1414000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	654000000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Classified Current ProductWarrantyAccrualClassifiedCurrent	454000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	740000000	USD
CY2017Q4	us-gaap	Product Warranty Accrual Noncurrent ProductWarrantyAccrualNoncurrent	466000000	USD
CY2018Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	1394000000	USD
CY2017Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	920000000	USD
CY2018Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	2208000000	USD
CY2017Q4	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	1687000000	USD
CY2017	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	36000000	USD
CY2018Q2	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	187000000	USD
CY2018Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.87
CY2018Q3	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	181000000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.85
CY2018Q4	us-gaap	Product Liability Contingency Accrual Present Value ProductLiabilityContingencyAccrualPresentValue	372000000	USD
CY2018Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	54000000	USD
CY2017Q4	us-gaap	Short Term Bank Loans And Notes Payable ShortTermBankLoansAndNotesPayable	57000000	USD
CY2018Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0466	Rate
CY2017Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0301	Rate
CY2016Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0420	Rate
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	780000000	USD
CY2017Q4	us-gaap	Commercial Paper CommercialPaper	298000000	USD
CY2018Q4	cmi	Leverage Ratio LeverageRatio	0.65
CY2018Q4	us-gaap	Commercial Paper CommercialPaper	780000000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	3500000000	USD
CY2018Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	2720000000	USD
CY2018Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	1642000000	USD
CY2018Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	64000000	USD
CY2017Q4	us-gaap	Other Long Term Debt OtherLongTermDebt	76000000	USD
CY2018Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	52000000	USD
CY2017Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	54000000	USD
CY2018Q4	us-gaap	Interest Rate Fair Value Hedge Liability At Fair Value InterestRateFairValueHedgeLiabilityAtFairValue	25000000	USD
CY2017Q4	us-gaap	Interest Rate Fair Value Hedge Liability At Fair Value InterestRateFairValueHedgeLiabilityAtFairValue	35000000	USD
CY2018Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	132000000	USD
CY2017Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	121000000	USD
CY2017Q4	us-gaap	Debt And Capital Lease Obligations DebtAndCapitalLeaseObligations	1651000000	USD
CY2018Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	45000000	USD
CY2017Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	63000000	USD
CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1597000000	USD
CY2017Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	1588000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	45000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	13000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	39000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	9000000	USD
CY2018Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	506000000	USD
CY2018	us-gaap	Interest Expense Debt InterestExpenseDebt	116000000	USD
CY2017	us-gaap	Interest Expense Debt InterestExpenseDebt	85000000	USD
CY2016	us-gaap	Interest Expense Debt InterestExpenseDebt	75000000	USD
CY2018	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	2000000	USD
CY2017	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	4000000	USD
CY2016	us-gaap	Interest Costs Capitalized InterestCostsCapitalized	6000000	USD
CY2017Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	77000000	USD
CY2018Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	360000000	USD
CY2017Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	495000000	USD
CY2018Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	852000000	USD
CY2018Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2679000000	USD
CY2017Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2301000000	USD
CY2018Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2476000000	USD
CY2017Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	2006000000	USD
CY2018Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	199000000	USD
CY2017Q4	us-gaap	Accrued Marketing Costs Current AccruedMarketingCostsCurrent	146000000	USD
CY2018Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	196000000	USD
CY2017Q4	us-gaap	Accrual For Taxes Other Than Income Taxes Current And Noncurrent AccrualForTaxesOtherThanIncomeTaxesCurrentAndNoncurrent	197000000	USD
CY2018Q4	us-gaap	Accrued Income Taxes AccruedIncomeTaxes	97000000	USD
CY2017Q4	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	915000000	USD
CY2018Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	293000000	USD
CY2017Q4	us-gaap	Taxes Payable Current And Noncurrent TaxesPayableCurrentAndNoncurrent	281000000	USD
CY2018Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	263000000	USD
CY2017Q4	us-gaap	Deferred Income Taxes And Other Tax Liabilities Noncurrent DeferredIncomeTaxesAndOtherTaxLiabilitiesNoncurrent	391000000	USD
CY2018Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	173000000	USD
CY2017Q4	us-gaap	Deferred Compensation Liability Classified Noncurrent DeferredCompensationLiabilityClassifiedNoncurrent	151000000	USD
CY2018Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	163000000	USD
CY2017Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	134000000	USD
CY2018Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	892000000	USD
CY2017Q4	us-gaap	Other Liabilities And Deferred Revenue Noncurrent OtherLiabilitiesAndDeferredRevenueNoncurrent	957000000	USD
CY2018Q4	us-gaap	Guarantee Obligations Maximum Exposure GuaranteeObligationsMaximumExposure	52000000	USD
CY2018Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Balance Sheet Amount UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount	65000000	USD
CY2018Q4	us-gaap	Purchase Obligation PurchaseObligation	70000000	USD
CY2018Q4	us-gaap	Guarantee Obligations Current Carrying Value GuaranteeObligationsCurrentCarryingValue	110000000	USD
CY2018	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	217000000	USD
CY2017	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	215000000	USD
CY2016	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	210000000	USD
CY2018Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	152000000	USD
CY2017Q4	us-gaap	Capital Leases Lessee Balance Sheet Assets By Major Class Accumulated Deprecation CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation	137000000	USD
CY2018Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	135000000	USD
CY2017Q4	us-gaap	Capital Leases Balance Sheet Assets By Major Class Net CapitalLeasesBalanceSheetAssetsByMajorClassNet	131000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	30000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	138000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	21000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	109000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	16000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	81000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	14000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	60000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	13000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	39000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	144000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	81000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	238000000	USD
CY2018Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	508000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	106000000	USD
CY2018Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	132000000	USD
CY2018	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	145.05
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1140000000	USD
CY2018Q3	us-gaap	Accelerated Share Repurchases Settlement Payment Or Receipt AcceleratedShareRepurchasesSettlementPaymentOrReceipt	500000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3500000	shares
	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	144.02
CY2016Q1	us-gaap	Accelerated Share Repurchases Settlement Payment Or Receipt AcceleratedShareRepurchasesSettlementPaymentOrReceipt	500000000	USD
	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4700000	shares
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
	us-gaap	Accelerated Share Repurchases Final Price Paid Per Share AcceleratedShareRepurchasesFinalPricePaidPerShare	105.50
CY2018	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1140000000	USD
CY2017	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	451000000	USD
CY2016	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	778000000	USD
CY2018	us-gaap	Payments Of Dividends PaymentsOfDividends	718000000	USD
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	133.00
CY2017	us-gaap	Payments Of Dividends PaymentsOfDividends	701000000	USD
CY2016	us-gaap	Payments Of Dividends PaymentsOfDividends	676000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-634000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-88000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-546000000	USD
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2018Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2018Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	105.91
CY2016	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-56000000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-490000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	418000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	51000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	367000000	USD
CY2017	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-74000000	USD
CY2017	cmi	Tax Cutsand Jobs Actof2017 Reclassificationform Aoc Ito Retained Earnings Net TaxCutsandJobsActof2017ReclassificationformAOCItoRetainedEarningsNet	-103000000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	338000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Before Tax OtherComprehensiveIncomeLossBeforeReclassificationsBeforeTax	-382000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-7000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Before Reclassifications Net Of Tax OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax	-375000000	USD
CY2018	us-gaap	Reclassification From Accumulated Other Comprehensive Income Current Period Net Of Tax ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax	-42000000	USD
CY2018	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-333000000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	8500000	shares
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Expiration Period SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod	P10Y
CY2018	us-gaap	Sale Of Stock Number Of Shares Issued In Transaction SaleOfStockNumberOfSharesIssuedInTransaction	100	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	50	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Award Vesting Period1 ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1	P2Y
CY2018	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1000000	USD
CY2017	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2000000	USD
CY2016	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1000000	USD
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	109.24
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	126816	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	125.65
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2901369	shares
CY2018	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2000000	USD
CY2017	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	2000000	USD
CY2016	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	1000000	USD
CY2018Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	46000000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	123.49
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	515320	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	159.06
CY2018	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	140133	shares
CY2018	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	88.74
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2029686	shares
CY2015Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	115.02
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	984430	shares
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	32894	shares
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	215890	shares
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	87.27
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	63462	shares
CY2016	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	119.56
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2734764	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	115.02
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	648900	shares
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	149.98
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	355479	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	3243662	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	130.55
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y8M12D
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	37000000	USD
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1149549	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	104.19
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y9M18D
CY2016Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	38000000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1063889	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	115.26
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y8M12D
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	66000000	USD
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1366722	shares
CY2018Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	124.97
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P4Y8M12D
CY2018Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	18000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	34.21
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	36.86
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	25.28
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	9000000	USD
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0248	Rate
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	19000000	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0228	Rate
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	9000000	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Dividend Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate	0.0210	Rate
CY2018	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	162773347	shares
CY2018	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P6Y
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Fair Value Assumptions Expected Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1	P5Y
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0272	Rate
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0208	Rate
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Risk Free Interest Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate	0.0134	Rate
CY2018	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2540	Rate
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.2997	Rate
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Fair Value Assumptions Expected Volatility Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate	0.3096	Rate
CY2018Q4	us-gaap	Minority Interest MinorityInterest	911000000	USD
CY2017Q4	us-gaap	Minority Interest MinorityInterest	905000000	USD
CY2016	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	298206	shares
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2141000000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	999000000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	1394000000	USD
CY2018	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	162172831	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	166625320	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	169038410	shares
CY2018	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	600516	shares
CY2017	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	645545	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	167270865	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	169336616	shares
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	13.20
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.99
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.25
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	13.15
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.97
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.23
CY2018	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	969385	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	31991	shares
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	1091799	shares
CY2016	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3000000	USD
CY2018	us-gaap	Revenues Revenues	23771000000	USD
CY2018	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	902000000	USD
CY2018	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	394000000	USD
CY2018	us-gaap	Investment Income Interest InvestmentIncomeInterest	35000000	USD
CY2018	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	3476000000	USD
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	609000000	USD
CY2018Q4	us-gaap	Assets Net AssetsNet	9220000000	USD
CY2018Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1222000000	USD
CY2018	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	709000000	USD
CY2017	us-gaap	Revenues Revenues	20428000000	USD
CY2017	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	754000000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	357000000	USD
CY2017	us-gaap	Investment Income Interest InvestmentIncomeInterest	18000000	USD
CY2017	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	5000000	USD
CY2017	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	3026000000	USD
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	580000000	USD
CY2017Q4	us-gaap	Assets Net AssetsNet	8574000000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1156000000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	506000000	USD
CY2016	us-gaap	Revenues Revenues	17509000000	USD
CY2016	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	637000000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	301000000	USD
CY2016	us-gaap	Investment Income Interest InvestmentIncomeInterest	23000000	USD
CY2016	us-gaap	Loss Contingency Loss In Period LossContingencyLossInPeriod	138000000	USD
CY2016	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	2526000000	USD
CY2016	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	527000000	USD
CY2016Q4	us-gaap	Assets Net AssetsNet	7336000000	USD
CY2016Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	946000000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	531000000	USD
CY2018	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	2000000	USD
CY2017	us-gaap	Amortization Of Debt Discount Premium AmortizationOfDebtDiscountPremium	3000000	USD
CY2017Q4	cmi	Debt Related Costs Not Allocated To Segments DebtRelatedCostsNotAllocatedToSegments	2000000	USD
CY2016Q4	cmi	Debt Related Costs Not Allocated To Segments DebtRelatedCostsNotAllocatedToSegments	2000000	USD
CY2018	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	3476000000	USD
CY2017	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	3026000000	USD
CY2016	cmi	Segment Reporting Information Income Lossbefore Interest Expense Income Taxes Depreciation Amortizationand Noncontrollinginterests SegmentReportingInformationIncomeLossbeforeInterestExpenseIncomeTaxesDepreciationAmortizationandNoncontrollinginterests	2526000000	USD
CY2018	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	609000000	USD
CY2017	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	580000000	USD
CY2016	us-gaap	Other Depreciation And Amortization OtherDepreciationAndAmortization	527000000	USD
CY2018	us-gaap	Interest Expense InterestExpense	114000000	USD
CY2017	us-gaap	Interest Expense InterestExpense	81000000	USD
CY2016	us-gaap	Interest Expense InterestExpense	69000000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2753000000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2365000000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	1930000000	USD
CY2018Q4	us-gaap	Assets Net AssetsNet	9220000000	USD
CY2017Q4	us-gaap	Assets Net AssetsNet	8574000000	USD
CY2016Q4	us-gaap	Assets Net AssetsNet	7336000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1525000000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1567000000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents And Short Term Investments CashCashEquivalentsAndShortTermInvestments	1380000000	USD
CY2018Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	0	USD
CY2017Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	72000000	USD
CY2016Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets	0	USD
CY2018Q4	cmi	Liabilities Deducted To Calculate Net Assets LiabilitiesDeductedToCalculateNetAssets	7836000000	USD
CY2017Q4	cmi	Liabilities Deducted To Calculate Net Assets LiabilitiesDeductedToCalculateNetAssets	7398000000	USD
CY2016Q4	cmi	Liabilities Deducted To Calculate Net Assets LiabilitiesDeductedToCalculateNetAssets	6157000000	USD
CY2018Q4	cmi	Pensionandotherpostretirementadjustmentsexcludedfromnetassets Pensionandotherpostretirementadjustmentsexcludedfromnetassets	68000000	USD
CY2017Q4	cmi	Pensionandotherpostretirementadjustmentsexcludedfromnetassets Pensionandotherpostretirementadjustmentsexcludedfromnetassets	156000000	USD
CY2016Q4	cmi	Pensionandotherpostretirementadjustmentsexcludedfromnetassets Pensionandotherpostretirementadjustmentsexcludedfromnetassets	-284000000	USD
CY2018Q4	cmi	Deferred Tax Assets Not Allocated To Segments DeferredTaxAssetsNotAllocatedToSegments	410000000	USD
CY2017Q4	cmi	Deferred Tax Assets Not Allocated To Segments DeferredTaxAssetsNotAllocatedToSegments	306000000	USD
CY2016Q4	cmi	Deferred Tax Assets Not Allocated To Segments DeferredTaxAssetsNotAllocatedToSegments	420000000	USD
CY2018Q4	cmi	Debt Related Costs Not Allocated To Segments DebtRelatedCostsNotAllocatedToSegments	3000000	USD
CY2018Q4	us-gaap	Assets Assets	19062000000	USD
CY2017Q4	us-gaap	Assets Assets	18075000000	USD
CY2018Q4	us-gaap	Revenues Revenues	6126000000	USD
CY2018Q2	us-gaap	Gross Profit GrossProfit	1200000000	USD
CY2018Q4	cmi	Entity Wide Disclosures On Geographic Areas Long Lived Assets EntityWideDisclosuresOnGeographicAreasLongLivedAssets	5863000000	USD
CY2017Q4	cmi	Entity Wide Disclosures On Geographic Areas Long Lived Assets EntityWideDisclosuresOnGeographicAreasLongLivedAssets	5769000000	USD
CY2016Q4	cmi	Entity Wide Disclosures On Geographic Areas Long Lived Assets EntityWideDisclosuresOnGeographicAreasLongLivedAssets	5318000000	USD
CY2018Q2	us-gaap	Revenues Revenues	5570000000	USD
CY2018Q3	us-gaap	Revenues Revenues	6132000000	USD
CY2018Q3	us-gaap	Revenues Revenues	5943000000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	1440000000	USD
CY2018Q3	us-gaap	Gross Profit GrossProfit	1551000000	USD
CY2018Q4	us-gaap	Gross Profit GrossProfit	1546000000	USD
CY2018Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	325000000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	545000000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	692000000	USD
CY2018Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	579000000	USD
CY2018Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.97
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.33
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.29
CY2018Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	3.65
CY2018Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.96
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.32
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.28
CY2018Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	3.63
CY2018Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2018Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.14
CY2017Q2	us-gaap	Revenues Revenues	4589000000	USD
CY2017Q3	us-gaap	Revenues Revenues	5078000000	USD
CY2017Q4	us-gaap	Revenues Revenues	5285000000	USD
CY2017Q4	us-gaap	Revenues Revenues	5476000000	USD
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2017Q2	us-gaap	Gross Profit GrossProfit	1132000000	USD
CY2017Q3	us-gaap	Gross Profit GrossProfit	1251000000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	1341000000	USD
CY2017Q4	us-gaap	Gross Profit GrossProfit	1376000000	USD
CY2017Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	396000000	USD
CY2017Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	424000000	USD
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	453000000	USD
CY2017Q4	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-274000000	USD
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.36
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.53
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.72
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-1.66
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.36
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.53
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.71
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-1.65
CY2017Q2	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.025
CY2017Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.025
CY2017Q4	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.08
CY2018Q2	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	187000000	USD
CY2018Q2	cmi	Product Liability Accrual Period Expense Netof Tax ProductLiabilityAccrualPeriodExpenseNetofTax	144000000	USD
CY2018Q3	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	181000000	USD
CY2018Q3	cmi	Product Liability Accrual Period Expense Netof Tax ProductLiabilityAccrualPeriodExpenseNetofTax	139000000	USD
CY2017Q4	us-gaap	Product Liability Accrual Period Expense ProductLiabilityAccrualPeriodExpense	29000000	USD
CY2017Q4	cmi	Product Liability Accrual Period Expense Netof Tax ProductLiabilityAccrualPeriodExpenseNetofTax	21000000	USD
CY2018Q2	cmi	Tax Cutsand Jobs Actof2017 Final Adjustment Cy Incomplete Accounting Py Total Impact Net TaxCutsandJobsActof2017FinalAdjustmentCYIncompleteAccountingPYTotalImpactNet	-74000000	USD
CY2018Q3	cmi	Tax Cutsand Jobs Actof2017 Final Adjustment Cy Incomplete Accounting Py Total Impact Net TaxCutsandJobsActof2017FinalAdjustmentCYIncompleteAccountingPYTotalImpactNet	-8000000	USD
CY2018Q3	cmi	Tax Cutsand Jobs Actof2017 Final Adjustment Cy Incomplete Accounting Py Total Impact Net TaxCutsandJobsActof2017FinalAdjustmentCYIncompleteAccountingPYTotalImpactNet	33000000	USD
CY2018Q4	cmi	Tax Cutsand Jobs Actof2017 Final Adjustment Cy Incomplete Accounting Py Total Impact Net TaxCutsandJobsActof2017FinalAdjustmentCYIncompleteAccountingPYTotalImpactNet	10000000	USD
CY2017	cmi	Tax Cutsand Jobs Actof2017 Final Adjustment Cy Incomplete Accounting Py Total Impact Net TaxCutsandJobsActof2017FinalAdjustmentCYIncompleteAccountingPYTotalImpactNet	-777000000	USD
CY2018Q4	cmi	Registered Shareholders Total RegisteredShareholdersTotal	3256

Files In Submission

Name	View Source	Status
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$CMI
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2017 Q4 Form 10-K Financial Statement

#000002617219000009 Filed on February 11, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMI CUMMINS INC Stock $cmi

2017 Q4 Form 10-K Financial Statement

#000002617219000009 Filed on February 11, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$CMI
CUMMINS INC Stock $cmi