$UNP
UNION PACIFIC CORP Stock $unp

$unp Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-K Financial Statement

#000143774922002494 Filed on February 04, 2022

Income Statement

Concept	2021 Q4	2021	2020 Q4
Revenue	$5.733B	$21.80B	$5.141B
YoY Change	11.52%	11.63%	-1.36%
Cost Of Revenue	$1.135B	$4.065B	$784.0M
YoY Change	44.77%	25.62%	-24.83%
Gross Profit	$4.598B	$17.74B	$4.357B
YoY Change	5.53%	8.85%	4.51%
Gross Profit Margin	80.2%	81.36%	84.75%
Selling, General & Admin	$1.300B	$5.017B	$1.281B
YoY Change	1.48%	2.22%	0.16%
% of Gross Profit	28.27%	28.28%	29.4%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$556.0M	$2.208B	$557.0M
YoY Change	-0.18%	-0.09%	-0.36%
% of Gross Profit	12.09%	12.45%	12.78%
Operating Expenses	$2.158B	$8.401B	$2.351B
YoY Change	-8.21%	-28.19%	13.63%
Operating Profit	$2.440B	$9.338B	$2.006B
YoY Change	21.64%	19.2%	-4.48%
Interest Expense	-$266.0M	$1.157B	-$278.0M
YoY Change	-4.32%	1.4%	2.58%
% of Operating Profit	-10.9%	12.39%	-13.86%
Other Income/Expense, Net	$40.00M	$297.0M	$47.00M
YoY Change	-14.89%	3.48%	4.44%
Pretax Income	$2.228B	$8.478B	$1.793B
YoY Change	24.26%	21.46%	-4.53%
Income Tax	$517.0M	$1.955B	$413.0M
% Of Pretax Income	23.2%	23.06%	23.03%
Net Earnings	$1.711B	$6.523B	$1.380B
YoY Change	23.99%	21.95%	-1.64%
Net Earnings / Revenue	29.84%	29.92%	26.84%
Basic Earnings Per Share		$9.98	$2.05
Diluted Earnings Per Share	$2.666M	$9.95	$2.05
COMMON SHARES
Basic Shares Outstanding	642.9M	653.8M	673.9M
Diluted Shares Outstanding		655.4M

Balance Sheet

Concept	2021 Q4	2021	2020 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$1.006B	$1.006B	$1.859B
YoY Change	-45.88%	-45.88%	108.64%
Cash & Equivalents	$960.0M	$960.0M	$1.799B
Short-Term Investments	$46.00M	$46.00M	$60.00M
Other Short-Term Assets	$202.0M	$202.0M	$212.0M
YoY Change	-4.72%	-4.72%	-4.5%
Inventory	$621.0M	$621.0M	$638.0M
Prepaid Expenses
Receivables	$1.722B	$1.722B	$1.505B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$3.551B	$3.551B	$4.214B
YoY Change	-15.73%	-15.73%	21.83%
LONG-TERM ASSETS
Property, Plant & Equipment	$54.87B	$56.66B	$54.16B
YoY Change	1.31%	1.59%	0.45%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$2.241B	$2.241B	$2.164B
YoY Change	3.56%	3.56%	5.56%
Other Assets	$1.075B	$1.075B	$249.0M
YoY Change	331.73%	331.73%	-42.89%
Total Long-Term Assets	$59.97B	$59.97B	$58.18B
YoY Change	3.08%	3.08%	-0.05%
TOTAL ASSETS
Total Short-Term Assets	$3.551B	$3.551B	$4.214B
Total Long-Term Assets	$59.97B	$59.97B	$58.18B
Total Assets	$63.53B	$63.53B	$62.40B
YoY Change	1.81%	1.81%	1.18%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$752.0M	$752.0M	$612.0M
YoY Change	22.88%	22.88%	-18.29%
Accrued Expenses	$1.199B	$1.199B	$1.164B
YoY Change	3.01%	3.01%	-3.88%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.166B	$2.166B	$1.069B
YoY Change	102.62%	102.62%	-14.96%
Total Short-Term Liabilities	$5.744B	$5.744B	$4.173B
YoY Change	37.65%	37.65%	-4.09%
LONG-TERM LIABILITIES
Long-Term Debt	$27.56B	$27.56B	$25.66B
YoY Change	7.42%	7.42%	7.17%
Other Long-Term Liabilities	$1.953B	$3.382B	$2.077B
YoY Change	-5.97%	0.65%	16.16%
Total Long-Term Liabilities	$1.953B	$30.95B	$2.077B
YoY Change	-5.97%	6.63%	16.16%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.744B	$5.744B	$4.173B
Total Long-Term Liabilities	$1.953B	$30.95B	$2.077B
Total Liabilities	$49.36B	$49.36B	$45.44B
YoY Change	8.64%	8.64%	4.35%
SHAREHOLDERS EQUITY
Retained Earnings	$55.05B		$51.33B
YoY Change	7.25%		5.6%
Common Stock	$2.781B		$2.781B
YoY Change	0.0%		0.04%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$47.73B		$40.42B
YoY Change	18.1%		10.97%
Treasury Stock Shares
Shareholders Equity	$14.16B	$14.16B	$16.96B
YoY Change
Total Liabilities & Shareholders Equity	$63.53B	$63.53B	$62.40B
YoY Change	1.81%	1.81%	1.18%

Cashflow Statement

Concept	2021 Q4	2021	2020 Q4
OPERATING ACTIVITIES
Net Income	$1.711B	$6.523B	$1.380B
YoY Change	23.99%	21.95%	-1.64%
Depreciation, Depletion And Amortization	$556.0M	$2.208B	$557.0M
YoY Change	-0.18%	-0.09%	-0.36%
Cash From Operating Activities	$2.529B	$9.032B	$2.547B
YoY Change	-0.71%	5.76%	8.61%
INVESTING ACTIVITIES
Capital Expenditures	-$991.0M	$2.936B	-$633.0M
YoY Change	56.56%	0.31%	-33.92%
Acquisitions
YoY Change
Other Investing Activities	$74.00M	-$25.00M	$38.00M
YoY Change	94.74%	-74.23%	26.67%
Cash From Investing Activities	-$917.0M	-$2.709B	-$595.0M
YoY Change	54.12%	1.23%	-35.88%
FINANCING ACTIVITIES
Cash Dividend Paid		$2.800B
YoY Change		6.63%
Common Stock Issuance & Retirement, Net		$7.291B
YoY Change		96.79%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-1.867B	-$7.158B	-2.752B
YoY Change	-32.16%	46.02%	47.64%
NET CHANGE
Cash From Operating Activities	2.529B	$9.032B	2.547B
Cash From Investing Activities	-917.0M	-$2.709B	-595.0M
Cash From Financing Activities	-1.867B	-$7.158B	-2.752B
Net Change In Cash	-255.0M	-$835.0M	-800.0M
YoY Change	-68.13%	-186.8%	78.97%
FREE CASH FLOW
Cash From Operating Activities	$2.529B	$9.032B	$2.547B
Capital Expenditures	-$991.0M	$2.936B	-$633.0M
Free Cash Flow	$3.520B	$6.096B	$3.180B
YoY Change	10.69%	8.61%	-3.72%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4173000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5349000000	USD
CY2021	unp	Commercial Paper Maturity Duration Minimum CommercialPaperMaturityDurationMinimum	P7D
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	21804000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	19533000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	21708000000	USD
CY2021	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4158000000	USD
CY2020	us-gaap	Labor And Related Expense LaborAndRelatedExpense	3993000000	USD
CY2019	us-gaap	Labor And Related Expense LaborAndRelatedExpense	4533000000	USD
CY2021	us-gaap	Depreciation Depreciation	2208000000	USD
CY2020	us-gaap	Depreciation Depreciation	2210000000	USD
CY2019	us-gaap	Depreciation Depreciation	2216000000	USD
CY2021	us-gaap	Fuel Costs FuelCosts	2049000000	USD
CY2020	us-gaap	Fuel Costs FuelCosts	1314000000	USD
CY2019	us-gaap	Fuel Costs FuelCosts	2107000000	USD
CY2021	unp	Purchased Services And Material PurchasedServicesAndMaterial	2016000000	USD
CY2020	unp	Purchased Services And Material PurchasedServicesAndMaterial	1962000000	USD
CY2019	unp	Purchased Services And Material PurchasedServicesAndMaterial	2254000000	USD
CY2021	unp	Equipment And Other Rents EquipmentAndOtherRents	859000000	USD
CY2020	unp	Equipment And Other Rents EquipmentAndOtherRents	875000000	USD
CY2019	unp	Equipment And Other Rents EquipmentAndOtherRents	984000000	USD
CY2021	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1176000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	75000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	27563000000	USD
CY2021	dei	Auditor Location AuditorLocation	Omaha, Nebraska
CY2021Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	2.50
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1400000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	1400000000
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1112440400
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	1112227784
CY2021	unp	Receivables Securitization Facility Duration ReceivablesSecuritizationFacilityDuration	P3Y
CY2021	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	pure
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	34011624
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	69867405
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	70318887
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2021Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	638841656
CY2020Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	671351360
CY2019	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.70
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	9032000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Tax Portion Attributable To Parent1 OtherComprehensiveIncomeLossTaxPortionAttributableToParent1	-237000000	USD
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	3.88
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	4.29
CY2021	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1	pure
CY2020	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1345000000	USD
CY2019	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	1060000000	USD
CY2021	us-gaap	Costs And Expenses CostsAndExpenses	12466000000	USD
CY2020	us-gaap	Costs And Expenses CostsAndExpenses	11699000000	USD
CY2019	us-gaap	Costs And Expenses CostsAndExpenses	13154000000	USD
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	9338000000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	7834000000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	8554000000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	297000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	287000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	243000000	USD
CY2021	us-gaap	Interest Expense InterestExpense	1157000000	USD
CY2020	us-gaap	Interest Expense InterestExpense	1141000000	USD
CY2019	us-gaap	Interest Expense InterestExpense	1050000000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	8478000000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	6980000000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	7747000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1955000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1631000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1828000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	6523000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	5919000000	USD
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.98
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.90
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	703500000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	655400000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	679100000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	706100000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	6523000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5349000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	5919000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-723000000	USD
CY2021Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	621000000	USD
CY2020Q4	us-gaap	Materials Supplies And Other MaterialsSuppliesAndOther	638000000	USD
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	202000000	USD
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.41
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.95
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.88
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.38
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	653800000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	677300000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	231000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-42000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-44000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-6000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	17000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	679000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-237000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	59000000	USD
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	7202000000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5112000000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5978000000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	960000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1799000000	USD
CY2021Q4	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	46000000	USD
CY2020Q4	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	60000000	USD
CY2021Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1722000000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	1505000000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	212000000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	3551000000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	4214000000	USD
CY2021Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	2241000000	USD
CY2020Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	2164000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	54871000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	54161000000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1787000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1610000000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1075000000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	249000000	USD
CY2021Q4	us-gaap	Assets Assets	63525000000	USD
CY2020Q4	us-gaap	Assets Assets	62398000000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	3578000000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	3104000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2166000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1069000000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	5744000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	25660000000	USD
CY2021	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-31000000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1429000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1283000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	12675000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	12247000000	USD
CY2021Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1953000000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2077000000	USD
CY2021Q4	us-gaap	Liabilities Liabilities	49364000000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	45440000000	USD
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	2781000000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	2781000000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4979000000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	4864000000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	55049000000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	51326000000	USD
CY2021Q4	us-gaap	Treasury Stock Value TreasuryStockValue	47734000000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	40420000000	USD
CY2021Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-914000000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1593000000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	14161000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	16958000000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	63525000000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	62398000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	6523000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5349000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	5919000000	USD
CY2021	us-gaap	Depreciation Depreciation	2208000000	USD
CY2020	us-gaap	Depreciation Depreciation	2210000000	USD
CY2019	us-gaap	Depreciation Depreciation	2216000000	USD
CY2021	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	154000000	USD
CY2020	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	340000000	USD
CY2019	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	566000000	USD
CY2021	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	98000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	115000000	USD
CY2019	us-gaap	Gain Loss On Sale Of Property GainLossOnSaleOfProperty	20000000	USD
CY2021	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-42000000	USD
CY2020	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-490000000	USD
CY2019	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-98000000	USD
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	217000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-90000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-160000000	USD
CY2021	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	-17000000	USD
CY2020	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	-113000000	USD
CY2019	us-gaap	Increase Decrease In Materials And Supplies IncreaseDecreaseInMaterialsAndSupplies	9000000	USD
CY2020	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	34000000	USD
CY2019	us-gaap	Increase Decrease In Other Current Assets IncreaseDecreaseInOtherCurrentAssets	-87000000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	184000000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-73000000	USD
CY2019	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-179000000	USD
CY2021	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	188000000	USD
CY2020	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	170000000	USD
CY2019	us-gaap	Increase Decrease In Accrued Taxes Payable IncreaseDecreaseInAccruedTaxesPayable	-229000000	USD
CY2020	us-gaap	Payments Of Dividends PaymentsOfDividends	2626000000	USD
CY2019	us-gaap	Payments Of Dividends PaymentsOfDividends	2598000000	USD
CY2021	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	1299000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	8540000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	8609000000	USD
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2936000000	USD
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2927000000	USD
CY2019	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3453000000	USD
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	178000000	USD
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	149000000	USD
CY2019	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	74000000	USD
CY2021	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	94000000	USD
CY2020	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	141000000	USD
CY2019	us-gaap	Proceeds From Sale Maturity And Collection Of Shortterm Investments ProceedsFromSaleMaturityAndCollectionOfShorttermInvestments	130000000	USD
CY2021	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	70000000	USD
CY2020	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	136000000	USD
CY2019	us-gaap	Payments To Acquire Short Term Investments PaymentsToAcquireShortTermInvestments	115000000	USD
CY2021	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-25000000	USD
CY2020	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-97000000	USD
CY2019	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	71000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2709000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2676000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3435000000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	7291000000	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3705000000	USD
CY2019	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5804000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4201000000	USD
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4004000000	USD
CY2019	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	3986000000	USD
CY2021	us-gaap	Payments Of Dividends PaymentsOfDividends	2800000000	USD
CY2020	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	2053000000	USD
CY2019	us-gaap	Repayments Of Debt And Capital Lease Obligations RepaymentsOfDebtAndCapitalLeaseObligations	817000000	USD
CY2021	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	325000000	USD
CY2020	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-127000000	USD
CY2019	us-gaap	Proceeds From Repayments Of Commercial Paper ProceedsFromRepaymentsOfCommercialPaper	-6000000	USD
CY2021	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	270000000	USD
CY2020	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	328000000	USD
CY2019	us-gaap	Payments Of Debt Restructuring Costs PaymentsOfDebtRestructuringCosts	387000000	USD
CY2021	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-24000000	USD
CY2020	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-67000000	USD
CY2019	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-20000000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7158000000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4902000000	USD
CY2019	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-5646000000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-835000000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	962000000	USD
CY2019	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-472000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1818000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	856000000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1328000000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	983000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	1818000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	856000000	USD
CY2021	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	100000000	USD
CY2020	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	250000000	USD
CY2019	us-gaap	Debt Conversion Converted Instrument Amount1 DebtConversionConvertedInstrumentAmount1	250000000	USD
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	263000000	USD
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	166000000	USD
CY2019	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	224000000	USD
CY2021	us-gaap	Contribution Of Property ContributionOfProperty	0	USD
CY2020	us-gaap	Contribution Of Property ContributionOfProperty	0	USD
CY2019	us-gaap	Contribution Of Property ContributionOfProperty	18000000	USD
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1658000000	USD
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1214000000	USD
CY2019	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-1382000000	USD
CY2021	us-gaap	Interest Paid Net InterestPaidNet	1087000000	USD
CY2020	us-gaap	Interest Paid Net InterestPaidNet	1050000000	USD
CY2019	us-gaap	Interest Paid Net InterestPaidNet	1033000000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	20423000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	5919000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	59000000	USD
CY2019	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	129000000	USD
CY2019	unp	Treasury Stock Value Acquired Cost Method Including Amount Paid In Excess TreasuryStockValueAcquiredCostMethodIncludingAmountPaidInExcess	5804000000	USD
CY2019	us-gaap	Dividends Cash DividendsCash	2598000000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	18128000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5349000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-237000000	USD
CY2020	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	51000000	USD
CY2020	unp	Treasury Stock Value Acquired Cost Method Including Amount Paid In Excess TreasuryStockValueAcquiredCostMethodIncludingAmountPaidInExcess	3705000000	USD
CY2020	us-gaap	Dividends Cash DividendsCash	2628000000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	16958000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	6523000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	679000000	USD
CY2021	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	92000000	USD
CY2021	unp	Treasury Stock Value Acquired Cost Method Including Amount Paid In Excess TreasuryStockValueAcquiredCostMethodIncludingAmountPaidInExcess	7291000000	USD
CY2021	us-gaap	Dividends Cash DividendsCash	2800000000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	14161000000	USD
CY2021	us-gaap	Nature Of Operations NatureOfOperations	<p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;"><b><em style="font: inherit;">1.</em> Nature of Operations</b></p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;"><b>Operations and Segmentation</b> – We are a Class I railroad operating in the U.S. Our network includes 32,452 route miles, connecting Pacific Coast and Gulf Coast ports with the Midwest and Eastern U.S. gateways and providing several corridors to key Mexican and Canadian gateways. We own 26,124 miles and operate on the remainder pursuant to trackage rights or leases. We serve the western <em style="font: inherit;">two</em>-thirds of the country and maintain coordinated schedules with other rail carriers for the handling of freight to and from the Atlantic Coast, the Pacific Coast, the Southeast, the Southwest, Canada, and Mexico. Export and import traffic is moved through Gulf Coast and Pacific Coast ports and across the Mexican and Canadian borders.</p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;">The Railroad, along with its subsidiaries and rail affiliates, is our <span style="-sec-ix-hidden:c80230625">one</span> reportable operating segment. Although we provide and analyze revenue by commodity group, we treat the financial results of the Railroad as <span style="-sec-ix-hidden:c80230626">one</span> segment due to the integrated nature of our rail network. Our operating revenues are primarily derived from contracts with customers for the transportation of freight from origin to destination. The following table represents a disaggregation of our freight and other revenues:</p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <table cellpadding="0" cellspacing="0" class="finTable" style="width: 100%; font-size: 9pt; font-family: Arial, Helvetica, sans-serif; text-indent: 0px; margin-left: 0pt; margin-right: 0pt;"> <tbody> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%; border-bottom: 1px solid black; border-top: 2px solid black;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;"><i>Millions</i></p> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> <td colspan="2" style="text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; text-align: right; margin: 0pt;"><b><i><em style="font: inherit;">2021</em></i></b></p> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> <td colspan="2" style="text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; text-align: right; margin: 0pt;"><i><em style="font: inherit;">2020</em></i></p> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> <td colspan="2" style="text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; text-align: right; margin: 0pt;"><i><em style="font: inherit;">2019</em></i></p> </td> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; border-bottom: 1px solid black; border-top: 2px solid black; width: 1%;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Bulk</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>$</b></td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>6,656</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">5,960</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">6,529</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Industrial</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>7,323</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">6,622</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">7,472</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Premium</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;"><b>6,265</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;">5,669</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;">6,242</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 1px solid black;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total freight revenues</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>$</b></td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>20,244</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">18,251</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">20,243</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other subsidiary revenues</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>741</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">743</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">880</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Accessorial revenues</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"><b>752</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">473</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;">514</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt;"> </td> </tr> <tr style="background-color: rgb(204, 238, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Other</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;"><b>67</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;">66</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 1px solid black;"> </td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;">71</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 1px solid black;"> </td> </tr> <tr style="background-color: rgb(255, 255, 255); vertical-align: bottom"> <td style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 2px solid black; width: 76%;"> <p style="font-family: Arial, Helvetica, sans-serif; font-size: 9pt; font-variant: normal; margin-top: 0pt; margin-bottom: 0pt;">Total operating revenues</p> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 2px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;"><b>$</b></td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;"><b>21,804</b></td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 2px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 2px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;">19,533</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 2px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; border-bottom: 2px solid black;"> </td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;">$</td> <td style="width: 5%; text-align: right; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; margin-left: 0pt; border-bottom: 2px solid black;">21,708</td> <td style="width: 1%; font-family: Arial, Helvetica, sans-serif; font-size: 9pt; padding-bottom: 1px; margin-left: 0pt; border-bottom: 2px solid black;"> </td> </tr> </tbody> </table> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;">Although our revenues are principally derived from customers domiciled in the U.S., the ultimate points of origination or destination for some products we transport are outside the U.S. Each of our commodity groups includes revenue from shipments to and from Mexico. Included in the above table are freight revenues from our Mexico business which amounted to $2.4 billion in <em style="font: inherit;">2021</em>, $2.1 billion in <em style="font: inherit;">2020</em>, and $2.3 billion in <em style="font: inherit;">2019</em>.</p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; margin: 0pt;"> </p> <p style="font-family: "arial", Times, serif; font-size: 10pt; font-variant: normal; text-align: justify; margin: 0pt;"><b>Basis of Presentation</b> – The Consolidated Financial Statements are presented in accordance with accounting principles generally accepted in the U.S. (GAAP) as codified in the Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC).</p>
CY2021Q4	unp	Network Route Miles NetworkRouteMiles	32452	pure
CY2021Q4	unp	Route Miles Owned RouteMilesOwned	26124	pure
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	21804000000	USD
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	19533000000	USD
CY2019	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	21708000000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod	387000
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	960000000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1799000000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	831000000	USD
CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	983000000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	1818000000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	856000000	USD
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	204.45
CY2021Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	169000000	USD
CY2020Q4	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	151000000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<b>Use of Estimates </b>– The preparation of our Consolidated Financial Statements in conformity with GAAP requires management to make estimates and assumptions that affect certain reported assets and liabilities, the disclosure of certain contingent assets and liabilities as of the date of the Consolidated Financial Statements, as well as the reported amounts of revenue and expenses during the reporting period. Actual future results <em style="font: inherit;"> may </em>differ from such estimates.
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	15000000	USD
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	15000000	USD
CY2019	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	16000000	USD
CY2021	us-gaap	Restricted Stock Expense RestrictedStockExpense	66000000	USD
CY2020	us-gaap	Restricted Stock Expense RestrictedStockExpense	58000000	USD
CY2019	us-gaap	Restricted Stock Expense RestrictedStockExpense	77000000	USD
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	88000000	USD
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	73000000	USD
CY2019	us-gaap	Share Based Compensation ShareBasedCompensation	93000000	USD
CY2021	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	26000000	USD
CY2020	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	55000000	USD
CY2019	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	52000000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2569000
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	132.49
CY2020	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y4M24D
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	195000000	USD
CY2021	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	753000
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	118.11
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod	97000
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures And Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriodWeightedAverageExercisePrice	154.62
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	2106000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	149.84
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P6Y3M18D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue	215000000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	2083000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	149.37
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P6Y3M18D
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	214000000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	1334000
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	126.38
CY2021	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y2M12D
CY2021Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	167000000	USD
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	84000000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	120000000	USD
CY2019	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	193000000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	58000000	USD
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	95000000	USD
CY2019	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	130000000	USD
CY2021	unp	Treasury Shares Repurchased For Employee Payroll Taxes TreasurySharesRepurchasedForEmployeePayrollTaxes	-15000000	USD
CY2020	unp	Treasury Shares Repurchased For Employee Payroll Taxes TreasurySharesRepurchasedForEmployeePayrollTaxes	-24000000	USD
CY2019	unp	Treasury Shares Repurchased For Employee Payroll Taxes TreasurySharesRepurchasedForEmployeePayrollTaxes	-37000000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	16000000	USD
CY2020	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	28000000	USD
CY2019	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	48000000	USD
CY2021	unp	Aggregate Grant Date Fair Value Of Stock Options Vested AggregateGrantDateFairValueOfStockOptionsVested	14000000	USD
CY2020	unp	Aggregate Grant Date Fair Value Of Stock Options Vested AggregateGrantDateFairValueOfStockOptionsVested	15000000	USD
CY2019	unp	Aggregate Grant Date Fair Value Of Stock Options Vested AggregateGrantDateFairValueOfStockOptionsVested	15000000	USD
	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Discount From Market Price Purchase Date ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate	0.40	pure
CY2021Q3	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Maximum Employee Subscription Rate ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate	0.05	pure
	unp	Espp Employee Contribution Annual Limit EsppEmployeeContributionAnnualLimit	15000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0242	pure
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0280	pure
CY2021Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	851000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Other Comprehensive Income Net Gains Losses Before Tax DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetGainsLossesBeforeTax	1805000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-813000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	408000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	88000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	141000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	104000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci Pension And Other Postretirement Benefit Plans For Net Gain Loss Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansForNetGainLossBeforeTax	67000000	USD
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	954000000	USD
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-304000000	USD
CY2019	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentBeforeTax	-21000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	549000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Projected Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation	605000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	513000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Accumulated Benefit Obligation DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation	560000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	0	USD
CY2020Q4	us-gaap	Defined Benefit Plan Pension Plans With Accumulated Benefit Obligations In Excess Of Plan Assets Aggregate Fair Value Of Plan Assets DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets	0	USD
CY2021Q4	unp	Underfunded Accumulated Benefit Obligation UnderfundedAccumulatedBenefitObligation	513000000	USD
CY2020Q4	unp	Underfunded Accumulated Benefit Obligation UnderfundedAccumulatedBenefitObligation	560000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	4900000000	USD
CY2020Q4	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	5200000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0280	pure
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0242	pure
CY2021Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0430	pure
CY2020Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	0.0440	pure
CY2021	unp	Defined Benefit Plan Expected Return On Plan Assets Changes In Fair Value Period DefinedBenefitPlanExpectedReturnOnPlanAssetsChangesInFairValuePeriod	P5Y
CY2021	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	85000000	USD
CY2020	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	50000000	USD
CY2019	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	34000000	USD
CY2021	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForBenefitObligations	0.0242	pure
CY2020	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForBenefitObligations	0.0326	pure
CY2019	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForBenefitObligations	0.0423	pure
CY2021	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnBenefitObligations	0.0190	pure
CY2020	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnBenefitObligations	0.0289	pure
CY2019	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Benefit Obligations DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnBenefitObligations	0.0394	pure
CY2021	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostDiscountRate	0.0261	pure
CY2020	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostDiscountRate	0.0342	pure
CY2019	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Service Cost Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostServiceCostDiscountRate	0.0433	pure
CY2021	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Service Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnServiceCost	0.0253	pure
CY2020	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Service Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnServiceCost	0.0336	pure
CY2019	unp	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Discount Rate For Interest On Service Cost DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRateForInterestOnServiceCost	0.0430	pure
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0625	pure
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0700	pure
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0700	pure
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0440	pure
CY2020	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0410	pure
CY2019	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Rate Of Compensation Increase DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	0.0410	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.006	pure
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	229000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	228000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	227000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	227000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	228000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	1170000000	USD
CY2021Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1	pure
CY2020Q4	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1	pure
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0625	pure
CY2021	us-gaap	Defined Benefit Plan Assumptions Used Calculating Net Periodic Benefit Cost Expected Long Term Return On Assets DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	0.0625	pure
CY2021	unp	Weighted Average Maturity Of Pension Plan Debt Portfolio WeightedAverageMaturityOfPensionPlanDebtPortfolio	P20Y
CY2020	unp	Weighted Average Maturity Of Pension Plan Debt Portfolio WeightedAverageMaturityOfPensionPlanDebtPortfolio	P17Y
CY2021Q4	unp	Pension Plan Master Trust Future Commitments For Additional Contributions Private Equity Partnerships PensionPlanMasterTrustFutureCommitmentsForAdditionalContributionsPrivateEquityPartnerships	115000000	USD
CY2020Q4	unp	Pension Plan Master Trust Future Commitments For Additional Contributions Private Equity Partnerships PensionPlanMasterTrustFutureCommitmentsForAdditionalContributionsPrivateEquityPartnerships	147000000	USD
CY2021Q4	unp	Pension Plan Master Trust Future Commitments For Additional Contributions Real Estate Partnerships And Funds PensionPlanMasterTrustFutureCommitmentsForAdditionalContributionsRealEstatePartnershipsAndFunds	7000000	USD
CY2020Q4	unp	Pension Plan Master Trust Future Commitments For Additional Contributions Real Estate Partnerships And Funds PensionPlanMasterTrustFutureCommitmentsForAdditionalContributionsRealEstatePartnershipsAndFunds	7000000	USD
CY2021	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	21000000	USD
CY2020	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	19000000	USD
CY2019	us-gaap	Defined Contribution Plan Cost Recognized DefinedContributionPlanCostRecognized	20000000	USD
CY2021	unp	Railroad Retirement System Contributions RailroadRetirementSystemContributions	550000000	USD
CY2020	unp	Railroad Retirement System Contributions RailroadRetirementSystemContributions	569000000	USD
CY2019	unp	Railroad Retirement System Contributions RailroadRetirementSystemContributions	654000000	USD
CY2021	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	136000000	USD
CY2020	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	123000000	USD
CY2019	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	124000000	USD
CY2021	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	98000000	USD
CY2020	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	115000000	USD
CY2019	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	20000000	USD
CY2021	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	36000000	USD
CY2020	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2019	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-25000000	USD
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-41000000	USD
CY2019	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-46000000	USD
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	5000000	USD
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	12000000	USD
CY2019	us-gaap	Investment Income Interest InvestmentIncomeInterest	32000000	USD
CY2021	unp	Interest Income Due To Employment Tax Refund InterestIncomeDueToEmploymentTaxRefund	0	USD
CY2020	unp	Interest Income Due To Employment Tax Refund InterestIncomeDueToEmploymentTaxRefund	0	USD
CY2019	unp	Interest Income Due To Employment Tax Refund InterestIncomeDueToEmploymentTaxRefund	31000000	USD
CY2021	unp	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-3000000	USD
CY2020	unp	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-4000000	USD
CY2019	unp	Other Nonoperating Income Expense Other OtherNonoperatingIncomeExpenseOther	-10000000	USD
CY2021	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	297000000	USD
CY2020	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	287000000	USD
CY2019	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	243000000	USD
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.001	pure
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1446000000	USD
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1026000000	USD
CY2019	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1000000000	USD
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	347000000	USD
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	259000000	USD
CY2019	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	254000000	USD
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8000000	USD
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6000000	USD
CY2019	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	8000000	USD
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1801000000	USD
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1291000000	USD
CY2019	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1262000000	USD
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	199000000	USD
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	295000000	USD
CY2019	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	417000000	USD
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-44000000	USD
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	45000000	USD
CY2019	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	128000000	USD
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1000000	USD
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	0	USD
CY2019	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	21000000	USD
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	154000000	USD
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	340000000	USD
CY2019	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	566000000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1955000000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1631000000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1828000000	USD
CY2021	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-32000000	USD
CY2019	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-21000000	USD
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.037	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0.005	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0.005	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.008	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.007	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002	pure
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.001	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	0.003	pure
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.231	pure
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.234	pure
CY2019	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.236	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Deductions Dividends EffectiveIncomeTaxRateReconciliationDeductionsDividends	0.006	pure
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Share Based Compensation Excess Tax Benefit Percent EffectiveIncomeTaxRateReconciliationShareBasedCompensationExcessTaxBenefitPercent	0.003	pure
CY2019	us-gaap	Effective Income Tax Rate Reconciliation Change In Deferred Tax Assets Valuation Allowance EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance	0.001	pure
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12657000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	12474000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	441000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Leasing Arrangements DeferredTaxLiabilitiesLeasingArrangements	397000000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	534000000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	444000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13632000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	13315000000	USD
CY2021Q4	unp	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	434000000	USD
CY2020Q4	unp	Deferred Tax Assets Operating Lease Liability DeferredTaxAssetsOperatingLeaseLiability	396000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	157000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Loss Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsLossReserves	143000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	45000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Compensation DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation	40000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	39000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	255000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	26000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	26000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	256000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	208000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	957000000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	1068000000	USD
CY2021Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	12675000000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	12247000000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	74000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	64000000	USD
CY2018Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	174000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	24000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	19000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	96000000	USD
CY2021	unp	Unrecognized Tax Benefits Increase Decrease Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities	-12000000	USD
CY2020	unp	Unrecognized Tax Benefits Increase Decrease Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities	0	USD
CY2019	unp	Unrecognized Tax Benefits Increase Decrease Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsIncreaseDecreaseResultingFromSettlementsWithTaxingAuthorities	-11000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	3000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	18000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	20000000	USD
CY2021	unp	Increases Decreases For Interest And Penalties IncreasesDecreasesForInterestAndPenalties	-3000000	USD
CY2020	unp	Increases Decreases For Interest And Penalties IncreasesDecreasesForInterestAndPenalties	5000000	USD
CY2019	unp	Increases Decreases For Interest And Penalties IncreasesDecreasesForInterestAndPenalties	-5000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	1000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	7000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	44000000	USD
CY2021	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1000000	USD
CY2020	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	1000000	USD
CY2019	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	62000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	38000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	74000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	64000000	USD
CY2021Q4	unp	Income Tax Examination Penalties And Interest Accrued Liabilities Receivables IncomeTaxExaminationPenaltiesAndInterestAccruedLiabilitiesReceivables	-1000000	USD
CY2020Q4	unp	Income Tax Examination Penalties And Interest Accrued Liabilities Receivables IncomeTaxExaminationPenaltiesAndInterestAccruedLiabilitiesReceivables	8000000	USD
CY2021	unp	Income Tax Examination Penalties And Interest Expense Benefit IncomeTaxExaminationPenaltiesAndInterestExpenseBenefit	-5000000	USD
CY2020	unp	Income Tax Examination Penalties And Interest Expense Benefit IncomeTaxExaminationPenaltiesAndInterestExpenseBenefit	5000000	USD
CY2019	unp	Income Tax Examination Penalties And Interest Expense Benefit IncomeTaxExaminationPenaltiesAndInterestExpenseBenefit	-4000000	USD
CY2021Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	31000000	USD
CY2020Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	52000000	USD
CY2019Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	39000000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	6523000000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	5349000000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	5919000000	USD
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	653800000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	677300000
CY2019	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	703500000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	655400000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	679100000
CY2019	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	706100000
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	9.98
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	7.90
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	8.41
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	9.95
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	7.88
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	8.38
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	10000000	USD
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	17000000	USD
CY2021Q4	unp	Total Transfer Capacity Undivided Interests To Investors Under Receivables Securitization Facility TotalTransferCapacityUndividedInterestsToInvestorsUnderReceivablesSecuritizationFacility	800000000	USD
CY2021Q4	unp	Value Outstanding Undivided Interest Held By Investors Under Receivables Securitization Facility ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility	300000000	USD
CY2020Q4	unp	Value Outstanding Undivided Interest Held By Investors Under Receivables Securitization Facility ValueOutstandingUndividedInterestHeldByInvestorsUnderReceivablesSecuritizationFacility	0	USD
CY2021Q4	unp	Accounts Receivable Supporting Undivided Investor Held Interest AccountsReceivableSupportingUndividedInvestorHeldInterest	1300000000	USD
CY2020Q4	unp	Accounts Receivable Supporting Undivided Investor Held Interest AccountsReceivableSupportingUndividedInvestorHeldInterest	1200000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	77275000000	USD
CY2021Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	22404000000	USD
CY2021Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	54871000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	75420000000	USD
CY2020Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	21259000000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	54161000000	USD
CY2021Q4	unp	Number Of Depreciable Asset Classes NumberOfDepreciableAssetClasses	60	pure
CY2021	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	2100000000	USD
CY2020	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	2000000000.0	USD
CY2019	us-gaap	Cost Of Property Repairs And Maintenance CostOfPropertyRepairsAndMaintenance	2300000000	USD
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	823000000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	635000000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	752000000	USD
CY2021Q4	us-gaap	Operating Lease Liability OperatingLeaseLiability	1759000000	USD
CY2021Q4	unp	Lease Liability LeaseLiability	2095000000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	612000000	USD
CY2021Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	352000000	USD
CY2020Q4	us-gaap	Accrued Employee Benefits Current AccruedEmployeeBenefitsCurrent	340000000	USD
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	330000000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	326000000	USD
CY2021Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	187000000	USD
CY2020Q4	us-gaap	Loss Contingency Accrual Carrying Value Current LossContingencyAccrualCarryingValueCurrent	177000000	USD
CY2021Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	706000000	USD
CY2020Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	592000000	USD
CY2021Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	3578000000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	3104000000	USD
CY2021Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	32900000000	USD
CY2021Q4	unp	Fair Value Of Total Debt In Excess Of Carrying Value FairValueOfTotalDebtInExcessOfCarryingValue	3200000000	USD
CY2020Q4	us-gaap	Debt Instrument Fair Value DebtInstrumentFairValue	31900000000	USD
CY2020Q4	unp	Fair Value Of Total Debt In Excess Of Carrying Value FairValueOfTotalDebtInExcessOfCarryingValue	5100000000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	1763000000	USD
CY2020Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	1538000000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	29729000000	USD
CY2020Q4	us-gaap	Long Term Debt LongTermDebt	26729000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	2166000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations Current LongTermDebtAndCapitalLeaseObligationsCurrent	1069000000	USD
CY2021Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	27563000000	USD
CY2020Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	25660000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2180000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	1385000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	1439000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1429000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	1016000000	USD
CY2021Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	24043000000	USD
CY2021Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	31492000000	USD
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount Premium And Debt Issuance Costs Net DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet	1763000000	USD
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	29729000000	USD
CY2021	us-gaap	Proceeds From Issuance Of Commercial Paper ProceedsFromIssuanceOfCommercialPaper	2100000000	USD
CY2021	us-gaap	Repayments Of Commercial Paper RepaymentsOfCommercialPaper	1800000000	USD
CY2021	unp	Commercial Paper Maturity Duration Maximum CommercialPaperMaturityDurationMaximum	P86D
CY2021Q4	us-gaap	Commercial Paper CommercialPaper	400000000	USD
CY2020Q4	us-gaap	Commercial Paper CommercialPaper	75000000	USD
CY2019Q4	unp	Board Of Directors Authorized Debt Issuance BoardOfDirectorsAuthorizedDebtIssuance	6000000000	USD
CY2019Q4	unp	Previous Board Of Directors Remaining Debt Issuance PreviousBoardOfDirectorsRemainingDebtIssuance	2250000000	USD
CY2021Q4	unp	Board Of Directors Remaining Debt Issuance BoardOfDirectorsRemainingDebtIssuance	2500000000	USD
CY2021Q4	unp	Lease Liability Payments Due Next Twelve Months LeaseLiabilityPaymentsDueNextTwelveMonths	440000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	293000000	USD
CY2021Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1787000000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	1610000000	USD
CY2021Q4	unp	Lessee Right Of Use Asset LesseeRightOfUseAsset	2153000000	USD
CY2020Q4	unp	Lessee Right Of Use Asset LesseeRightOfUseAsset	1980000000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1429000000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	1283000000	USD
CY2021Q4	unp	Lease Liability LeaseLiability	2095000000	USD
CY2020Q4	unp	Lease Liability LeaseLiability	2053000000	USD
CY2021Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	687000000	USD
CY2020Q4	us-gaap	Finance Lease Right Of Use Asset Accumulated Amortization FinanceLeaseRightOfUseAssetAccumulatedAmortization	737000000	USD
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	303000000	USD
CY2020	us-gaap	Operating Lease Cost OperatingLeaseCost	317000000	USD
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	25000000	USD
CY2020	us-gaap	Short Term Lease Cost ShortTermLeaseCost	26000000	USD
CY2021	us-gaap	Variable Lease Cost VariableLeaseCost	11000000	USD
CY2020	us-gaap	Variable Lease Cost VariableLeaseCost	10000000	USD
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	69000000	USD
CY2020	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	66000000	USD
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	20000000	USD
CY2020	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	27000000	USD
CY2021	us-gaap	Lease Cost LeaseCost	428000000	USD
CY2020	us-gaap	Lease Cost LeaseCost	446000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	333000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	107000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	81000000	USD
CY2021Q4	unp	Lease Liability Payments Due Year Two LeaseLiabilityPaymentsDueYearTwo	374000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	285000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	68000000	USD
CY2021Q4	unp	Lease Liability Payments Due Year Three LeaseLiabilityPaymentsDueYearThree	353000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	285000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	45000000	USD
CY2021Q4	unp	Lease Liability Payments Due Year Four LeaseLiabilityPaymentsDueYearFour	330000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	215000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due Year Five FinanceLeaseLiabilityPaymentsDueYearFive	36000000	USD
CY2021Q4	unp	Lease Liability Payments Due Year Five LeaseLiabilityPaymentsDueYearFive	251000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due After Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive	555000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due After Year Five FinanceLeaseLiabilityPaymentsDueAfterYearFive	41000000	USD
CY2021Q4	unp	Lease Liability Payments Due After Year Five LeaseLiabilityPaymentsDueAfterYearFive	596000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	1966000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	378000000	USD
CY2021Q4	unp	Lease Liability Payments Due LeaseLiabilityPaymentsDue	2344000000	USD
CY2021Q4	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	207000000	USD
CY2021Q4	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	42000000	USD
CY2021Q4	unp	Lease Liability Undiscounted Excess Amount LeaseLiabilityUndiscountedExcessAmount	249000000	USD
CY2021	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	27000000	USD
CY2021Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	60000000	USD
CY2021Q4	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y3M18D
CY2021Q4	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y9M18D
CY2021Q4	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.032	pure
CY2021Q4	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.049	pure
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	292000000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	323000000	USD
CY2020	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	30000000	USD
CY2021	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	26000000	USD
CY2020	us-gaap	Finance Lease Interest Payment On Liability FinanceLeaseInterestPaymentOnLiability	29000000	USD
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	106000000	USD
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	113000000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Finance Lease Liability RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability	0	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	442000000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	93000000	USD
CY2021	unp	Sites Identified SitesIdentified	376	pure
CY2021	unp	Sites Subject Of Actions Taken By Us Government SitesSubjectOfActionsTakenByUSGovernment	28	pure
CY2021	unp	Sites On Superfund National Priorities List SitesOnSuperfundNationalPrioritiesList	18	pure
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	233000000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	227000000	USD
CY2018Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	223000000	USD
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	69000000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	76000000	USD
CY2019	us-gaap	Accrual For Environmental Loss Contingencies Charges To Expense For New Losses AccrualForEnvironmentalLossContingenciesChargesToExpenseForNewLosses	67000000	USD
CY2021	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	59000000	USD
CY2020	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	70000000	USD
CY2019	us-gaap	Accrual For Environmental Loss Contingencies Payments1 AccrualForEnvironmentalLossContingenciesPayments1	63000000	USD
CY2021Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	243000000	USD
CY2020Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	233000000	USD
CY2019Q4	us-gaap	Accrual For Environmental Loss Contingencies AccrualForEnvironmentalLossContingencies	227000000	USD
CY2020Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	65000000	USD
CY2019Q4	us-gaap	Accrued Environmental Loss Contingencies Current AccruedEnvironmentalLossContingenciesCurrent	62000000	USD
CY2019Q2	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	150000000
	unp	Treasury Stock Value Acquired Cost Method Including Amount Paid In Excess TreasuryStockValueAcquiredCostMethodIncludingAmountPaidInExcess	48200000000	USD
CY2021Q1	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	6691421
CY2020Q1	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	14305793
CY2021Q1	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	209.50
CY2020Q1	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	178.66
CY2021Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	12204409
CY2020Q2	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2021Q2	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	222.46
CY2020Q2	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	0
CY2021Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	8604239
CY2020Q3	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	4045575
CY2021Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	210.31
CY2020Q3	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	98.87
CY2021Q4	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	5837551
CY2020Q4	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	3780743
CY2021Q4	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	233.71
CY2020Q4	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	198.07
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	33337620
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	22132111
CY2021	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	218.69
CY2020	us-gaap	Treasury Stock Acquired Average Cost Per Share TreasuryStockAcquiredAverageCostPerShare	167.39
CY2021Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	77685350

Files In Submission

Name	View Source	Status
0001437749-22-002494-index-headers.html	Edgar Link	pending
0001437749-22-002494-index.html	Edgar Link	pending
0001437749-22-002494.txt	Edgar Link	pending
0001437749-22-002494-xbrl.zip	Edgar Link	pending
ex_315642.htm	Edgar Link	pending
ex_315643.htm	Edgar Link	pending
ex_315644.htm	Edgar Link	pending
ex_315645.htm	Edgar Link	pending
ex_315646.htm	Edgar Link	pending
ex_315647.htm	Edgar Link	pending
ex_321029.htm	Edgar Link	pending
ex_321030.htm	Edgar Link	pending
ex_321031.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
piebulk01.jpg	Edgar Link	pending
pieindustrial01.jpg	Edgar Link	pending
pieoperating01.jpg	Edgar Link	pending
piepremium01.jpg	Edgar Link	pending
pierevenue01.jpg	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R100.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R53.htm	Edgar Link	pending
R54.htm	Edgar Link	pending
R55.htm	Edgar Link	pending
R56.htm	Edgar Link	pending
R57.htm	Edgar Link	pending
R58.htm	Edgar Link	pending
R59.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R60.htm	Edgar Link	pending
R61.htm	Edgar Link	pending
R62.htm	Edgar Link	pending
R63.htm	Edgar Link	pending
R64.htm	Edgar Link	pending
R65.htm	Edgar Link	pending
R66.htm	Edgar Link	pending
R67.htm	Edgar Link	pending
R68.htm	Edgar Link	pending
R69.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R70.htm	Edgar Link	pending
R71.htm	Edgar Link	pending
R72.htm	Edgar Link	pending
R73.htm	Edgar Link	pending
R74.htm	Edgar Link	pending
R75.htm	Edgar Link	pending
R76.htm	Edgar Link	pending
R77.htm	Edgar Link	pending
R78.htm	Edgar Link	pending
R79.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R80.htm	Edgar Link	pending
R81.htm	Edgar Link	pending
R82.htm	Edgar Link	pending
R83.htm	Edgar Link	pending
R84.htm	Edgar Link	pending
R85.htm	Edgar Link	pending
R86.htm	Edgar Link	pending
R87.htm	Edgar Link	pending
R88.htm	Edgar Link	pending
R89.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
R90.htm	Edgar Link	pending
R91.htm	Edgar Link	pending
R92.htm	Edgar Link	pending
R93.htm	Edgar Link	pending
R94.htm	Edgar Link	pending
R95.htm	Edgar Link	pending
R96.htm	Edgar Link	pending
R97.htm	Edgar Link	pending
R98.htm	Edgar Link	pending
R99.htm	Edgar Link	pending
report.css	Edgar Link	pending
sgwt_b-w280pxv2.jpg	Edgar Link	pending
Show.js	Edgar Link	pending
signature1.jpg	Edgar Link	pending
stockperformance01.jpg	Edgar Link	pending
unp-20211231.xsd	Edgar Link	pending
unp-20211231_cal.xml	Edgar Link	unprocessable
unp-20211231_def.xml	Edgar Link	unprocessable
unp-20211231_lab.xml	Edgar Link	unprocessable
unp-20211231_pre.xml	Edgar Link	unprocessable
unp20211231_10k.htm	Edgar Link	pending
unp20211231_10k_htm.xml	Edgar Link	completed
upannualreportsystemmap01.jpg	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$UNP
UNION PACIFIC CORP Stock $unp

2021 Q4 Form 10-K Financial Statement

#000143774922002494 Filed on February 04, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UNP UNION PACIFIC CORP Stock $unp

2021 Q4 Form 10-K Financial Statement

#000143774922002494 Filed on February 04, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UNP
UNION PACIFIC CORP Stock $unp