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Consolidated Statements of Cash Flows (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Operating Activities [Abstract] | |||
| Net income | $ 5,180us-gaap_NetIncomeLoss | $ 4,388us-gaap_NetIncomeLoss | $ 3,943us-gaap_NetIncomeLoss |
| Adjustments to reconcile net income to cash provided by operating activities [Abstract] | |||
| Depreciation | 1,904us-gaap_Depreciation | 1,777us-gaap_Depreciation | 1,760us-gaap_Depreciation |
| Deferred income taxes and unrecognized tax benefits | 895unp_DeferredIncomeTaxesAndUnrecognizedTaxBenefits | 723unp_DeferredIncomeTaxesAndUnrecognizedTaxBenefits | 887unp_DeferredIncomeTaxesAndUnrecognizedTaxBenefits |
| Other operating activities, net | (285)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | (226)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet | (160)us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet |
| Changes in current assets and liabilities [Abstract] | |||
| Accounts receivable, net | (197)us-gaap_IncreaseDecreaseInAccountsReceivable | (83)us-gaap_IncreaseDecreaseInAccountsReceivable | 70us-gaap_IncreaseDecreaseInAccountsReceivable |
| Materials and supplies | (59)us-gaap_IncreaseDecreaseInMaterialsAndSupplies | 7us-gaap_IncreaseDecreaseInMaterialsAndSupplies | (46)us-gaap_IncreaseDecreaseInMaterialsAndSupplies |
| Other current assets | (270)us-gaap_IncreaseDecreaseInOtherCurrentAssets | 74us-gaap_IncreaseDecreaseInOtherCurrentAssets | (108)us-gaap_IncreaseDecreaseInOtherCurrentAssets |
| Accounts payable and other current liabilities | 217us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | 163us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities | (185)us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities |
| Cash provided by operating activities | 7,385us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 6,823us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations | 6,161us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations |
| Investing Activities [Abstract] | |||
| Capital investments | (4,346)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (3,496)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | (3,738)us-gaap_PaymentsToAcquirePropertyPlantAndEquipment |
| Proceeds from asset sales | 138us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 98us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment | 80us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment |
| Acquisition of equipment pending financing | 0unp_PaymentsToAcquirePropertyPlantAndEquipmentPendingFinancing | 0unp_PaymentsToAcquirePropertyPlantAndEquipmentPendingFinancing | (274)unp_PaymentsToAcquirePropertyPlantAndEquipmentPendingFinancing |
| Proceeds from sale of assets financed | 0unp_ProceedsFromSaleOfAssetsFinanced | 0unp_ProceedsFromSaleOfAssetsFinanced | 274unp_ProceedsFromSaleOfAssetsFinanced |
| Other investing activities, net | (41)us-gaap_PaymentsForProceedsFromOtherInvestingActivities | (7)us-gaap_PaymentsForProceedsFromOtherInvestingActivities | 25us-gaap_PaymentsForProceedsFromOtherInvestingActivities |
| Cash used in investing activities | (4,249)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (3,405)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations | (3,633)us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations |
| Financing Activities [Abstract] | |||
| Common share repurchases (Note 19) | (3,225)us-gaap_PaymentsForRepurchaseOfCommonStock | (2,218)us-gaap_PaymentsForRepurchaseOfCommonStock | (1,474)us-gaap_PaymentsForRepurchaseOfCommonStock |
| Debt issued | 2,588us-gaap_ProceedsFromIssuanceOfLongTermDebt | 1,443us-gaap_ProceedsFromIssuanceOfLongTermDebt | 695us-gaap_ProceedsFromIssuanceOfLongTermDebt |
| Dividends paid | (1,632)us-gaap_PaymentsOfDividends | (1,333)us-gaap_PaymentsOfDividends | (1,146)us-gaap_PaymentsOfDividends |
| Debt repaid | (710)us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations | (640)us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations | (758)us-gaap_RepaymentsOfDebtAndCapitalLeaseObligations |
| Debt exchange | 0us-gaap_PaymentsOfDebtRestructuringCosts | (289)us-gaap_PaymentsOfDebtRestructuringCosts | 0us-gaap_PaymentsOfDebtRestructuringCosts |
| Other financing activities, net | (3)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities | (12)us-gaap_ProceedsFromPaymentsForOtherFinancingActivities | 1us-gaap_ProceedsFromPaymentsForOtherFinancingActivities |
| Cash used in financing activities | (2,982)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (3,049)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations | (2,682)us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations |
| Net change in cash and cash equivalents | 154us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 369us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | (154)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |
| Cash and cash equivalents at beginning of year | 1,432us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,063us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,217us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Cash and cash equivalents at end of year | 1,586us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,432us-gaap_CashAndCashEquivalentsAtCarryingValue | 1,063us-gaap_CashAndCashEquivalentsAtCarryingValue |
| Non-cash investing and financing activities [Abstract] | |||
| Cash dividends declared but not yet paid | 438us-gaap_DividendsPayableCurrent | 356us-gaap_DividendsPayableCurrent | 318us-gaap_DividendsPayableCurrent |
| Capital investments accrued but not yet paid | 174us-gaap_CapitalExpendituresIncurredButNotYetPaid | 133us-gaap_CapitalExpendituresIncurredButNotYetPaid | 136us-gaap_CapitalExpendituresIncurredButNotYetPaid |
| Capital lease financings | 0us-gaap_CapitalLeaseObligationsIncurred | 39us-gaap_CapitalLeaseObligationsIncurred | 290us-gaap_CapitalLeaseObligationsIncurred |
| Cash paid during the year for: [Abstract] | |||
| Interest, net of amounts capitalized | (554)us-gaap_InterestPaidNet | (528)us-gaap_InterestPaidNet | (561)us-gaap_InterestPaidNet |
| Income taxes, net of refunds | $ (2,492)us-gaap_IncomeTaxesPaidNet | $ (1,656)us-gaap_IncomeTaxesPaidNet | $ (1,552)us-gaap_IncomeTaxesPaidNet |
| X | ||||||||||
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- Definition
The component of income tax and unrecognized tax expense for the period representing the increase (decrease) in the entity's deferred tax assets and liabilities pertaining to continuing operations. No definition available.
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- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; and are pending financing No definition available.
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| X | ||||||||||
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- Definition
The cash inflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; and are pending financing No definition available.
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- Details
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- Definition
Future cash outflow to pay for purchases of fixed assets that have occurred. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The increase during the period in capital lease obligations due to entering into new capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in the amounts payable to vendors for goods and services received and the amount of obligations and expenses incurred but not paid. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase (decrease) during the period in the carrying amount of capitalized costs of materials, supplies, or both, which are not included in inventory. No definition available.
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- Details
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in other current operating assets not separately disclosed in the statement of cash flows. No definition available.
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| X | ||||||||||
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- Definition
The increase (decrease) during the reporting period in other assets used in operating activities less other operating liabilities used in operating activities not separately disclosed in the statement of cash flows. May include changes in other current assets and liabilities, other noncurrent assets and liabilities, or a combination of other current and noncurrent assets and liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of cash inflow (outflow) of financing activities, excluding discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of cash inflow (outflow) of investing activities, excluding discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
Amount of cash inflow (outflow) from operating activities, excluding discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow for cost incurred in the modification of term of existing debt agreement in order for the entity to achieve some advantage. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Cash outflow in the form of capital distributions and dividends to common shareholders, preferred shareholders and noncontrolling interests. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net cash inflow or outflow from other financing activities. This element is used when there is not a more specific and appropriate element in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The cash outflow during the period from the repayment of aggregate short-term and long-term debt and payment of capital lease obligations. No definition available.
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- Details
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