Norfolk Southern (NSC) 10-K14 Feb 142013 FY Annual reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
Document And Entity Information (USD $)	Dec. 31, 2013	Jan. 31, 2014	Jun. 30, 2013
Document And Entity Information [Abstract]	'	'	'
Document Type	'10-K	'	'
Amendment Flag	'false	'	'
Document Period End Date	31-Dec-13	'	'
Entity Registrant Name	'NORFOLK SOUTHERN CORP	'	'
Entity Central Index Key	'0000702165	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Current Fiscal Year End Date	'--12-31	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Well-known Seasoned Issuer	'Yes	'	'
Entity Public Float	'	'	$22,587,575,039
Entity Common Stock, Shares Outstanding	'	309,715,149	'

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements Of Income [Abstract]	'	'	'
Railway operating revenues	$11,245	$11,040	$11,172
Railway operating expenses:	'	'	'
Compensation and benefits	3,002	2,960	2,974
Purchased services and rents	1,629	1,604	1,610
Fuel	1,613	1,577	1,589
Depreciation	916	916	862
Materials and other	828	859	924
Total railway operating expenses	7,988	7,916	7,959
Income from railway operations	3,257	3,124	3,213
Other income, net	233	129	160
Interest expense on debt	525	495	455
Income before income taxes	2,965	2,758	2,918
Provision for income taxes	1,055	1,009	1,002
Net income	$1,910	$1,749	$1,916
Per share amounts:	'	'	'
Basic	$6.10	$5.42	$5.52
Diluted	$6.04	$5.37	$5.45

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Income and Comprehensive Income [Abstract]	'	'	'
Net income	$1,910	$1,749	$1,916
Other comprehensive income (loss), before tax	'	'	'
Pension and other postretirement benefits	1,122	-114	-325
Other comprehensive income (loss) of equity investees	42	-13	-21
Other comprehensive income (loss), before tax	1,164	-127	-346
Income tax benefit (expense) related to items of other comprehensive income	-436	44	125
Other Comprehensive Income (Loss), Net of Tax	728	-83	-221
Total comprehensive income	$2,638	$1,666	$1,695

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets	'	'
Cash and cash equivalents	$1,443	$653
Short-term investments	118	15
Accounts receivable, net	1,024	1,109
Materials and supplies	223	216
Deferred income taxes	180	167
Other current assets	87	82
Total current assets	3,075	2,242
Investments	2,439	2,300
Properties less accumulated depreciation of $10,387 and $9,922, respectively	26,645	25,736
Other assets	324	64
Total assets	32,483	30,342
Liabilities and stockholders' equity	'	'
Accounts payable	1,265	1,362
Short-term debt	100	200
Income and other taxes	225	206
Other current liabilities	270	263
Current maturities of long-term debt	445	50
Total current liabilities	2,305	2,081
Long-term debt	8,903	8,432
Other liabilities	1,444	2,237
Deferred income taxes	8,542	7,832
Total liabilities	21,194	20,582
Stockholders' equity:	'	'
Common stock $1.00 per share par value, 1,350,000,000 shares authorized; outstanding 308,878,402 and 314,034,174 shares, respectively, net of treasury shares	310	315
Additional paid-in capital	2,021	1,911
Accumulated other comprehensive loss	-381	-1,109
Retained income	9,339	8,643
Total stockholders' equity	11,289	9,760
Total liabilities and stockholders' equity	$32,483	$30,342

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Consolidated Balance Sheets [Abstract]	'	'
Properties, accumulated depreciation	$10,387	$9,922
Common stock, par or stated value per share	$1	$1
Common stock, shares authorized	1,350,000,000	1,350,000,000
Common stock, shares outstanding, net of treasury shares	308,878,402	314,034,174

Consolidated_Statements_Of_Cas

Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities	'	'	'
Net income	$1,910	$1,749	$1,916
Reconciliation of net income to net cash provided by operating activities:	'	'	'
Depreciation	922	922	869
Deferred income taxes	262	366	527
Gains and losses on properties and investments	-104	-6	-32
Changes in assets and liabilities affecting operations:	'	'	'
Accounts receivable	85	-64	-215
Materials and supplies	-7	-7	-40
Other current assets	-5	-6	14
Current liabilities other than debt	5	82	68
Other, net	10	29	120
Net cash provided by operating activities	3,078	3,065	3,227
Cash flows from investing activities	'	'	'
Property additions	-1,971	-2,241	-2,160
Property sales and other transactions	144	192	84
Investments, including short-term	-130	-23	-135
Investment sales and other transactions	63	78	439
Net cash used in investing activities	-1,894	-1,994	-1,772
Cash flows from financing activities	'	'	'
Dividends	-637	-624	-576
Common stock issued, net	131	89	120
Purchase and retirement of common stock	-627	-1,288	-2,051
Proceeds from borrowings, net	989	1,491	1,101
Debt repayments	-250	-362	-600
Net cash used in financing activities	-394	-694	-2,006
Net increase (decrease) in cash and cash equivalents	790	377	-551
Cash and cash equivalents	'	'	'
At beginning of year	653	276	827
At end of year	1,443	653	276
Supplemental disclosure of cash flow information	'	'	'
Interest (net of amounts capitalized)	492	473	435
Income taxes (net of refunds)	$735	$618	$289

Consolidated_Statements_Of_Cha

Consolidated Statements Of Changes In Stockholders' Equity (USD $)	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Income [Member]	Total
In Millions, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Income [Member]	Total
Balance at Dec. 31, 2010	$358	$1,892	($805)	$9,224	$10,669
Comprehensive income	'	'	'	'	'
Net income	'	'	'	1,916	1,916
Other Comprehensive Income (Loss), Net of Tax	'	'	-221	'	-221
Total comprehensive income	'	'	'	'	1,695
Dividends on Common Stock	'	'	'	-576	-576
Share repurchases	-30	-159	'	-1,862	-2,051
Stock-based compensation, including tax benefit	4	179	'	-9	174
Balance at Dec. 31, 2011	332	1,912	-1,026	8,693	9,911
Comprehensive income	'	'	'	'	'
Net income	'	'	'	1,749	1,749
Other Comprehensive Income (Loss), Net of Tax	'	'	-83	'	-83
Total comprehensive income	'	'	'	'	1,666
Dividends on Common Stock	'	'	'	-624	-624
Share repurchases	-19	-104	'	-1,165	-1,288
Stock-based compensation, including tax benefit	2	103	'	-10	95
Balance at Dec. 31, 2012	315	1,911	-1,109	8,643	9,760
Comprehensive income	'	'	'	'	'
Net income	'	'	'	1,910	1,910
Other Comprehensive Income (Loss), Net of Tax	'	'	728	'	728
Total comprehensive income	'	'	'	'	2,638
Dividends on Common Stock	'	'	'	-637	-637
Share repurchases	-8	-49	'	-570	-627
Stock-based compensation, including tax benefit	3	159	'	-7	155
Balance at Dec. 31, 2013	$310	$2,021	($381)	$9,339	$11,289

Consolidated_Statements_Of_Cha1

Consolidated Statements Of Changes In Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Consolidated Statements Of Changes In Stockholders' Equity [Abstract]	'	'	'
Common Stock, Dividends, Per Share, Declared	$2.04	$1.94	$1.66
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	$38	$42	$45

Summary_Of_Significant_Account

Summary Of Significant Accounting Policies	12 Months Ended
Summary Of Significant Accounting Policies	Dec. 31, 2013
Summary Of Significant Accounting Policies [Abstract]	'
Summary Of Significant Accounting Policies	'
	1. Summary of Significant Accounting Policies
	Description of Business
	Norfolk Southern Corporation is a Virginia-based holding company engaged principally in the rail transportation business, operating approximately 20,000 miles of road primarily in the East and Midwest. These consolidated financial statements include Norfolk Southern Corporation (Norfolk Southern) and its majority-owned and controlled subsidiaries (collectively, NS, we, us, and our). Norfolk Southern's major subsidiary is Norfolk Southern Railway Company (NSR). All significant intercompany balances and transactions have been eliminated in consolidation.
	NSR and its railroad subsidiaries transport raw materials, intermediate products and finished goods classified in the following commodity groups (percent of total railway operating revenues in 2013): coal (23%); intermodal (21%); chemicals (15%); agriculture/consumer products/government (13%); metals/construction (12%); automotive (9%); and, paper/clay/forest products (7%). Although most of our customers are domestic, ultimate points of origination or destination for some of the products transported (particularly coal bound for export and some intermodal containers) may be outside the U.S. More than 80% of our railroad employees are covered by collective bargaining agreements with various labor unions.
	Use of Estimates
	The preparation of financial statements in accordance with U.S. Generally Accepted Accounting Principles (GAAP) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We periodically review our estimates, including those related to the recoverability and useful lives of assets, as well as liabilities for litigation, environmental remediation, casualty claims, income taxes and pension and other postretirement benefits. Changes in facts and circumstances may result in revised estimates.
	Revenue Recognition
	Transportation revenue is recognized proportionally as a shipment moves from origin to destination, and related expenses are recognized as incurred. Refunds (which are primarily volume-based incentives) are recorded as a reduction to revenues on the basis of management's best estimate of projected liability, which is based on historical activity, current shipment counts and the expectation of future activity. We regularly monitor our contract refund liability and, historically, the estimates have not differed significantly from the amounts ultimately refunded. Switching, demurrage and other incidental service revenues are recognized when the services are performed.
	Cash Equivalents
	“Cash equivalents” are highly liquid investments purchased three months or less from maturity.
	Allowance for Doubtful Accounts
	Our allowance for doubtful accounts was $3 million at both December 31, 2013 and 2012. To determine our allowance for doubtful accounts, we evaluate historical loss experience (which has not been significant), the characteristics of current accounts, and general economic conditions and trends.
	Materials and Supplies
	“Materials and supplies,” consisting mainly of fuel oil and items for maintenance of property and equipment, are stated at the lower of average cost or market. The cost of materials and supplies expected to be used in property additions or improvements is included in “Properties.”
	Investments
	Debt securities classified as “held-to-maturity” are reported at amortized cost.
	Investments where we have the ability to exercise significant influence over but do not control the entity are accounted for using the equity method, whereby the investment is carried at the cost of the acquisition plus our equity in undistributed earnings or losses since acquisition.
	Properties
	“Properties” are stated principally at cost and are depreciated using the group method whereby assets with similar characteristics, use, and expected lives are grouped together in asset classes and depreciated using a composite depreciation rate. This methodology treats each asset class as a pool of resources, not as singular items. We use more than 60 depreciable asset classes. The primary depreciation method for our asset base is group life. Units of production is the principal method of depreciation for rail in high density corridors and for depletion of natural resources (Note 2). Remaining properties are depreciated generally using the straight-line method over the lesser of estimated service or lease lives. Depreciation in the Consolidated Statements of Cash Flows includes both depreciation and depletion.
	Depreciation expense is based on our assumptions concerning expected service lives of our properties as well as the expected net salvage that will be received upon their retirement. In developing these assumptions, we utilize periodic depreciation studies that are performed by an independent outside firm of consulting engineers and approved by the Surface Transportation Board (STB). Our depreciation studies are conducted about every three years for equipment and every six years for track assets and other roadway property. The frequency of these studies is consistent with guidelines established by the STB. Key factors which are considered in developing average service life and salvage estimates include:
	• statistical analysis of historical retirement data and surviving asset records;
	• review of historical salvage received and current market rates;
	• review of our operations including expected changes in technology, customer demand, maintenance
	practices and asset management strategies;
	• review of accounting policies and assumptions; and
	• industry review and analysis.
	The units of production depreciation rate for rail in high density corridors is derived based on consideration of annual gross ton miles as compared to the total or ultimate capacity of rail in these corridors. Our experience has shown that traffic density is a leading factor in determination of the expected service life of rail in high density corridors. In developing the respective depreciation rate, consideration is also given to several rail characteristics including age, weight, condition (new or second hand) and type (curve or straight). As a result, a composite depreciation rate is developed which is applied to the depreciable base.
	We adjust our rates based on the results of these studies and implement the changes prospectively. The studies may also indicate that the recorded amount of accumulated depreciation is deficient (or in excess) of the amount indicated by the study. Any such deficiency (or excess) is amortized as a component of depreciation expense over the remaining service lives of the affected class of property, as determined by the study. For 2013, roadway depreciation rates ranged from 0.83% to 33.3% and equipment depreciation rates ranged from 1.40% to 33.33%.
	We capitalize interest on major projects during the period of their construction. Expenditures, including those on leased assets, that extend an asset's useful life or increase its utility, are capitalized. Expenditures capitalized include those that are directly related to a capital project and may include materials, labor and equipment, in addition to an allocable portion of indirect costs that clearly relate to a particular project. Due to the capital intensive nature of the railroad industry, a significant portion of annual capital spending relates to the replacement of self-constructed assets. Because removal activities occur in conjunction with replacement, removal costs are estimated based on an average percentage of time employees replacing assets spend on removal functions. Costs related to repairs and maintenance activities that do not extend an asset's useful life or increase its utility are expensed when such repairs are performed.
	When properties other than land and nonrail assets are sold or retired in the ordinary course of business, the cost of the assets, net of sale proceeds or salvage, is charged to accumulated depreciation, and no gain or loss is recognized in earnings. Actual historical cost values are retired when available, such as with equipment assets. The use of estimates in recording the retirement of certain roadway assets is necessary based on the impracticality of tracking individual asset costs. When retiring rail, ties and ballast, we use statistical curves that indicate the relative distribution of the age of the assets retired. The historical cost of other roadway assets is estimated using a combination of inflation indices specific to the rail industry and those published by the U.S. Bureau of Labor Statistics. The indices are applied to the replacement value based on the age of the retired assets. These indices are used because they closely correlate with the costs of roadway assets. Gains and losses on disposal of land and nonrail assets are included in “Other income - net” (Note 2) since such income is not a product of our railroad operations.
	A retirement is considered abnormal if it does not occur in the normal course of business, if it relates to disposition of a large segment of an asset class and if the retirement varies significantly from the retirement profile identified through our depreciation studies, which inherently consider the impact of normal retirements on expected service lives and depreciation rates. Gains or losses from abnormal retirements are recognized in earnings.
	We review the carrying amount of properties whenever events or changes in circumstances indicate that such carrying amount may not be recoverable based on future undiscounted cash flows. Assets that are deemed impaired as a result of such review are recorded at the lower of carrying amount or fair value.
	Required Accounting Changes
	In the first quarter of 2013, we prospectively adopted Accounting Standards Update (ASU) No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” This update requires the disclosure of the effects of reclassifications out of Accumulated Other Comprehensive Loss on the respective line items in our Consolidated Statements of Income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. We don't have any such items. For other amounts that are not required to be reclassified in their entirety to net income in the same reporting period, we are required to cross-reference other required GAAP disclosures to provide additional detail about those amounts. We include these disclosures in our “Stockholders' Equity” (Note 13) footnote. This update does not change the requirement to present the components of net income and other comprehensive income in either a single continuous statement or two separate consecutive statements, nor does it change the items currently reported in other comprehensive income.

Other_Income_Net

Other Income - Net	12 Months Ended
Other Income - Net	Dec. 31, 2013
Other Income - Net [Abstract]	'
Other Income - Net	'
	2. Other Income - Net

		2013		2012		2011
		($ in millions)
	Income from natural resources:
	Royalties from coal	$	50	$	72	$	86
	Nonoperating depletion and depreciation		(6)		(6)		(7)
	Subtotal		44		66		79

	Gains and losses from sale of properties		101		5		32
	Rental income		61		54		51
	Equity in earnings of Conrail Inc. (Note 5)		42		34		31
	Corporate-owned life insurance - net		25		13		8
	Interest income		8		8		9
	Taxes on nonoperating property		(10)		(10)		(9)
	Charitable contributions		(11)		(9)		(9)
	Other interest expense - net		(12)		(9)		(3)
	Other		(15)		(23)		(29)

	Total	$	233	$	129	$	160


	“Other income - net” includes income and costs not part of rail operations and the income generated by the activities of our noncarrier subsidiaries as well as the costs incurred by those subsidiaries in their operations.

Income_Taxes

Income Taxes	12 Months Ended
Income Taxes	Dec. 31, 2013
Income Taxes [Abstract]	'
Income Taxes	'
	3. Income Taxes

	Provisions for Income Taxes

		2013			2012			2011
		($ in millions)
	Current:
	Federal	$	695		$	569		$	432
	State		98			74			43
	Total current taxes		793			643			475

	Deferred:
	Federal		270			339			506
	State		(8)			27			21
	Total deferred taxes		262			366			527

	Provision for income taxes	$	1,055		$	1,009		$	1,002

	Reconciliation of Statutory Rate to Effective Rate

	The “Provision for income taxes” in the Consolidated Statements of Income differs from the amounts computed by applying the statutory federal corporate tax rate as follows:

		2013					2012				2011
		Amount			%		Amount			%	Amount		%
		($ in millions)

	Federal income tax at statutory rate	$	1,038		35		$	965		35	$	1,021	35
	State income taxes, net of federal tax effect		69		2			69		3		69	2
	Internal Revenue Service (IRS) audit, settlement		-		-			(6)		-		(40)	(1)
	State tax law changes, net of federal tax effect		(11)		-			(3)		-		(28)	(1)
	Other, net		(41)		(1)			(16)		(1)		(20)	(1)

	Provision for income taxes	$	1,055		36		$	1,009		37	$	1,002	34



	Deferred Tax Assets and Liabilities

	Certain items are reported in different periods for financial reporting and income tax purposes. Deferred tax assets and liabilities are recorded in recognition of these differences. The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and deferred tax liabilities are as follows:

		December 31,
		2013			2012
		($ in millions)
	Deferred tax assets:
	Compensation and benefits, including postretirement	$	462		$	834
	Accruals, including casualty and other claims		114			139
	Other		54			41
	Total gross deferred tax assets		630			1,014
	Less valuation allowance		(32)			(19)

	Net deferred tax asset		598			995

	Deferred tax liabilities:
	Property		(8,494)			(8,188)
	Other		(466)			(472)
	Total gross deferred tax liabilities		(8,960)			(8,660)

	Net deferred tax liability		(8,362)			(7,665)
	Net current deferred tax asset		180			167

	Net long-term deferred tax liability	$	(8,542)		$	(7,832)



Except for amounts for which a valuation allowance has been provided, we believe that it is more likely than not that the results of future operations will generate sufficient taxable income to realize the deferred tax assets. The valuation allowance at the end of each year primarily relates to subsidiary state income tax net operating losses that may not be utilized prior to their expiration. The valuation allowance for 2013 also includes state investment tax credits that may not be utilized prior to their expiration. The total valuation allowance increased by $13 million in 2013 and remained unchanged in 2012.


Uncertain Tax Positions

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

	December 31,
	2013			2012
	($ in millions)

Balance at beginning of year	$	63		$	105

Additions based on tax positions related to the current year		3			6
Additions for tax positions of prior years		4			-
Reductions for tax positions of prior years		(1)			(20)
Settlements with taxing authorities		(2)			(23)
Lapse of statutes of limitations		(2)			(5)

Balance at end of year	$	65		$	63



Included in the balance of unrecognized tax benefits at December 31, 2013, are potential benefits of $25 million that would affect the effective tax rate if recognized. Unrecognized tax benefits are adjusted in the period in which new information about a tax position becomes available or the final outcome differs from the amount recorded.

IRS examinations have been completed for all years prior to 2011. We expect the IRS to begin auditing our 2011 and 2012 consolidated income tax returns in early 2014. State income tax returns generally are subject to examination for a period of three to four years after filing of the return. In addition, we are generally obligated to report changes in taxable income arising from federal income tax examinations to the states within a period of up to two years from the date the federal examination is final. We have various state income tax returns either under examination, administrative appeals, or litigation. We expect that the total amount of unrecognized tax benefits at December 31, 2013, will decrease by approximately $8 million in 2014 due to tax positions for which there was an uncertainty about the timing of deductibility in earlier years, but deductibility may become certain by the close of 2014. We do not expect that the aforementioned potential change in unrecognized tax benefits will have a material effect on our financial position, results of operations, or liquidity.

Interest related to unrecognized tax benefits, which is included in “Other income - net,” totaled $1 million of expense in 2013, $1 million of income in 2012, and $10 million of income in 2011. There were no penalties related to tax matters in 2013, 2012, and 2011. We have recorded a liability of $4 million at December 31, 2013, and $3 million at December 31, 2012, for the payment of interest on unrecognized tax benefits. We have no liability recorded at December 31, 2013 and 2012, for the payment of penalties on unrecognized tax benefits.

Fair_Value

Fair Value

12 Months Ended

Dec. 31, 2013

Fair Value [Abstract]

Fair Value

4. Fair Value

Fair Value Measurements

ASC 820-10, “Fair Value Measurements,” established a framework for measuring fair value and a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels, as follows:

Level 1

Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that we have the ability to access.

Level 2

Inputs to the valuation methodology include:

quoted prices for similar assets or liabilities in active markets;

quoted prices for identical or similar assets or liabilities in inactive markets;

inputs other than quoted prices that are observable for the asset or liability;

inputs that are derived principally from or corroborated by observable market data by correlation or other means.

If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.

Level 3

Inputs to the valuation methodology are unobservable and significant to the fair value measurement.

The asset's or liability's fair value measurement level within the hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Other than those assets and liabilities described below that approximate fair value, there were no assets or liabilities measured at fair value on a recurring basis at December 31, 2013 or 2012.

Fair Values of Financial Instruments

We have evaluated the fair values of financial instruments and methods used to determine those fair values. The fair values of “Cash and cash equivalents,” “Short-term investments,” “Accounts receivable,” “Accounts payable,” and “Short-term debt” approximate carrying values because of the short maturity of these financial instruments. The carrying value of corporate-owned life insurance is recorded at cash surrender value and, accordingly, approximates fair value. The carrying amounts and estimated fair values for the remaining financial instruments, excluding investments accounted for under the equity method, consisted of the following at December 31:

2013

2012

Carrying

Fair

Carrying

Fair

Amount

Value

Amount

Value

($ in millions)

Long-term investments

148

177

139

174

Long-term debt, including current maturities

(9,348)

(10,673)

(8,482)

(10,734)

Underlying net assets were used to estimate the fair value of investments with the exception of notes receivable, which are based on future discounted cash flows. The fair values of long-term debt were estimated based on quoted market prices or discounted cash flows using current interest rates for debt with similar terms, company rating, and remaining maturity.

The following tables set forth the fair value of long-term investment and long-term debt balances disclosed above by valuation technique level, within the fair value hierarchy (there were no level 3 valued assets or liabilities).

31-Dec-13

Level 1

Level 2

Total

($ in millions)

Long-term investments

130

177

Long-term debt, including current maturities

(10,449)

(224)

(10,673)

31-Dec-12

Level 1

Level 2

Total

($ in millions)

Long-term investments

133

174

Long-term debt, including current maturities

(10,450)

(284)

(10,734)

Sales of available-for-sale securities were zero for years ended December 31, 2013 and 2012, and $81 million for the year ended December 31, 2011.

Investments

Investments	12 Months Ended
Investments	Dec. 31, 2013
Investments [Abstract]	'
Investments	'
	5. Investments

		December 31,
		2013		2012
		($ in millions)
	Short-term investments:
	Commercial paper, 2 months	$	98	$	-
	Federal government bonds, held-to-maturity, with average
	maturities of 3 and 5 months, respectively		20		15

	Total short-term investments	$	118	$	15

	Long-term investments:
	Equity method investments:
	Conrail Inc.	$	1,075	$	996
	TTX Company		404		383
	Meridian Speedway LLC		278		281
	Pan Am Southern LLC		155		155
	Other		90		82
	Total equity method investments		2,002		1,897

	Company-owned life insurance at net cash surrender value		289		264
	Other investments		148		139

	Total long-term investments	$	2,439	$	2,300


	Investment in Conrail

	Through a limited liability company, we and CSX Corporation (CSX) jointly own Conrail Inc. (Conrail), whose primary subsidiary is Consolidated Rail Corporation (CRC). We have a 58% economic and 50% voting interest in the jointly owned entity, and CSX has the remainder of the economic and voting interests. We are amortizing the excess of the purchase price over Conrail's net equity using the principles of purchase accounting, based primarily on the estimated useful lives of Conrail's depreciable property and equipment, including the related deferred tax effect of the differences in book and tax accounting bases for such assets, as all of the purchase price at acquisition was allocable to Conrail's tangible assets and liabilities.

	At December 31, 2013, based on the funded status of Conrail's pension plans, we increased our proportional investment in Conrail by $37 million. This resulted in income of $34 million recorded to “Other comprehensive loss” and a combined federal and state deferred tax liability of $3 million.

	At December 31, 2012, based on the funded status of Conrail's pension plans, we decreased our proportional investment in Conrail by $7 million. This resulted in a loss of $6 million recorded to “Other comprehensive loss” and a combined federal and state deferred tax asset of $1 million.

	At December 31, 2013, the difference between our investment in Conrail and our share of Conrail's underlying net equity was $535 million. Our equity in the earnings of Conrail, net of amortization, included in “Other income - net” was $42 million, $34 million, and $31 million in 2013, 2012, and 2011, respectively.

	CRC owns and operates certain properties (the Shared Assets Areas) for the joint and exclusive benefit of NSR and CSX Transportation, Inc. (CSXT). The costs of operating the Shared Assets Areas are borne by NSR and CSXT based on usage. In addition, NSR and CSXT pay CRC a fee for access to the Shared Assets Areas. “Purchased services and rents” and “Fuel” include expenses for amounts due to CRC for operation of the Shared Assets Areas totaling $146 million in 2013, $147 million in 2012, and $131 million in 2011. Future minimum lease payments due to CRC under the Shared Assets Areas agreements are as follows: $35 million in each of 2014 through 2018 and $185 million thereafter. We provide certain general and administrative support functions to Conrail, the fees for which are billed in accordance with several service-provider arrangements and approximate $8 million annually.

	“Accounts payable” includes $187 million at December 31, 2013, and $178 million at December 31, 2012, due to Conrail for the operation of the Shared Assets Areas. In addition, “Other liabilities” includes $133 million at both December 31, 2013 and 2012, for long-term advances from Conrail, maturing 2035, that bear interest at an average rate of 4.4%.

Properties

Properties	12 Months Ended
Properties	Dec. 31, 2013
Properties [Abstract]	'
Properties	'
	6. Properties

				Accumulated		Net Book		Depreciation
	At December 31, 2013	Cost		Depreciation		Value		Rate		-1
		($ in millions)

	Land	$	2,253	$	-	$	2,253		-

	Roadway:
	Rail and other track material		5,934		(1,782)		4,152		2.46%
	Ties		4,464		(1,100)		3,364		3.24%
	Ballast		2,244		(468)		1,776		2.65%
	Construction in process		405		-		405		-
	Other roadway		11,704		(2,814)		8,890		2.55%
	Total roadway		24,751		(6,164)		18,587

	Equipment:
	Locomotives		4,814		(1,918)		2,896		3.42%
	Freight cars		3,225		(1,429)		1,796		2.78%
	Computers and software		513		(292)		221		11.07%
	Construction in process		139		-		139		-
	Other equipment		862		(316)		546		6.15%
	Total equipment		9,553		(3,955)		5,598

	Other property		475		(268)		207		1.15%

	Total properties	$	37,032	$	(10,387)	$	26,645
				Accumulated		Net Book		Depreciation
	At December 31, 2012	Cost		Depreciation		Value		Rate		-1
		($ in millions)

	Land	$	2,240	$	-	$	2,240		-

	Roadway:
	Rail and other track material		5,699		(1,707)		3,992		2.48%
	Ties		4,255		(1,027)		3,228		3.28%
	Ballast		2,128		(437)		1,691		2.61%
	Construction in process		378		-		378		-
	Other roadway		11,223		(2,636)		8,587		2.57%
	Total roadway		23,683		(5,807)		17,876

	Equipment:
	Locomotives		4,576		(1,798)		2,778		3.54%
	Freight cars		3,214		(1,502)		1,712		2.95%
	Computers and software		480		(270)		210		13.29%
	Construction in process		177		-		177		-
	Other equipment		817		(282)		535		5.99%
	Total equipment		9,264		(3,852)		5,412

	Other property		471		(263)		208		1.31%

	Total properties	$	35,658	$	(9,922)	$	25,736


	(1) Composite annual depreciation rate for the underlying assets, excluding the effects of the amortization of any
	deficiency (or excess) that resulted from our depreciation studies.

	Roadway and equipment property includes $8 million at December 31, 2013, and $9 million at December 31, 2012, of assets recorded pursuant to capital leases with accumulated amortization of $3 million at both December 31, 2013 and 2012. Other property includes the costs of obtaining rights to natural resources of $336 million at both December 31, 2013 and 2012, with accumulated depletion of $195 million and $192 million, respectively.

	Capitalized Interest

	Total interest cost incurred on debt was $543 million in 2013, $515 million in 2012, and $474 million in 2011, of which $18 million, $20 million, and $19 million, respectively, was capitalized.

Current_Liabilities

Current Liabilities	12 Months Ended
Current Liabilities	Dec. 31, 2013
Current Liabilities [Abstract]	'
Current Liabilities	'
	7. Current Liabilities

		December 31,
		2013		2012
		($ in millions)
	Accounts payable:
	Accounts and wages payable	$	685	$	777
	Due to Conrail (Note 5)		187		178
	Casualty and other claims (Note 16)		166		183
	Vacation liability		130		129
	Other		97		95

	Total	$	1,265	$	1,362

	Other current liabilities:
	Interest payable	$	121	$	112
	Postretirement and pension benefit obligations (Note 11)		64		70
	Other		85		81

	Total	$	270	$	263

Debt

Debt	12 Months Ended
Debt	Dec. 31, 2013
Debt [Abstract]	'
Debt	'
	8. Debt

	Debt with weighted average interest rates and maturities is presented below:

		December 31,
		2013		2012
		($ in millions)
	Notes and debentures:
	6.16% maturing to 2018	$	2,082	$	2,082
	6.16% maturing 2019 to 2021		1,397		1,397
	3.22% maturing 2022 to 2024		1,600		1,200
	6.93% maturing 2025 to 2037		1,402		1,403
	4.81% maturing 2041 to 2043		1,833		1,333
	6.39% maturing 2097 to 2111		1,328		1,328
	Securitization borrowings, 1.23%		200		300
	Other debt, 7.94% maturing 2024		101		151
	Discounts and premiums, net		(495)		(512)
	Total debt		9,448		8,682
	Less current maturities and short-term debt		(545)		(250)

	Long-term debt excluding current maturities and short-term debt	$	8,903	$	8,432


	Long-term debt maturities subsequent to 2014 are as follows:
	2015	$	1
	2016		500
	2017		550
	2018		600
	2019 and subsequent years		7,252

	Total	$	8,903


	During the third quarter of 2012, we issued $600 million of senior notes at 2.90% due 2023 and paid $115 million of premium in exchange for $521 million of our previously issued notes ($156 million at 7.25% due 2031, $140 million at 5.64% due 2029, $115 million at 5.59% due 2025, $72 million at 7.80% due 2027, and $38 million at 7.05% due 2037). The premium is reflected as a reduction of debt in the Consolidated Balance Sheets, is included within “Debt repayments” in the 2012 Statement of Cash Flows, and is being amortized as additional interest expense over the term of the new debt. No gain or loss was recognized as a result of the debt exchange.

	We have in place a $350 million receivables securitization facility under which NSR sells substantially all of its eligible third-party receivables to a subsidiary, which in turn may transfer beneficial interests in the receivables to various commercial paper vehicles. Amounts received under the facility are accounted for as borrowings. Under this facility, we received $100 million and repaid $200 million in 2013.

	At December 31, 2013 and 2012, respectively, the amounts outstanding under the receivables securitization facility were $200 million at an average variable interest rate of 1.23% and $300 million at an average variable interest rate of 1.28%. Our intent is to refinance $100 million of these borrowings on a long-term basis, which is supported by our $750 million credit agreement (see below). Accordingly, these amounts outstanding are included in the line item “Long-term debt” and the remaining $100 million outstanding at December 31, 2013 and
	$200 million outstanding at December 31, 2012, are included in the line item “Short-term debt” in the Consolidated Balance Sheets. The facility has a 364-day term which was renewed and amended in October 2013 to run until October 2014. At December 31, 2013 and 2012, the receivables included in “Accounts receivable - net” serving as collateral for these borrowings totaled $747 million and $751 million, respectively.

	Issuance of Debt or Equity Securities

	We have authority from our Board of Directors to issue an additional $800 million of debt or equity securities through public or private sale.

	Credit Agreement, Debt Covenants, and Commercial Paper

	We have in place and available a $750 million, five-year credit agreement expiring in 2016, which provides for borrowings at prevailing rates and includes covenants. We had no amounts outstanding under this facility at December 31, 2013 and 2012, and we are in compliance with all of its covenants.

	We have the ability to issue commercial paper supported by the $750 million credit agreement. At December 31, 2013 and 2012, we had no outstanding commercial paper.

Lease_Commitments

Lease Commitments	12 Months Ended
Lease Commitments	Dec. 31, 2013
Lease Commitments [Abstract]	'
Lease Commitments	'
	9. Lease Commitments

	We are committed under long-term lease agreements, which expire on various dates through 2067, for equipment, lines of road and other property. The following amounts do not include payments to CRC under the Shared Assets Areas agreements (Note 5). Future minimum lease payments and operating lease expense are as follows:

	Future Minimum Lease Payments

		Operating		Capital
		Leases		Leases
		($ in millions)

	2014	$	80	$	2
	2015		74		1
	2016		62		-
	2017		54		-
	2018		50		-
	2019 and subsequent years		418		2

	Total	$	738		5
	Less imputed interest on capital leases at an average rate of 5.50%				(1)

	Present value of minimum lease payments included in debt			$	4


	Operating Lease Expense

		2013		2012		2011
		($ in millions)

	Minimum rents	$	121	$	129	$	150
	Contingent rents		82		73		77

	Total	$	203	$	202	$	227


	Contingent rents are primarily comprised of usage-based rent paid to other railroads for joint facility operations.

Other_Liabilities

Other Liabilities	12 Months Ended
Other Liabilities	Dec. 31, 2013
Other Liabilities [Abstract]	'
Other Liabilities	'
	10. Other Liabilities

		December 31,
		2013		2012
		($ in millions)

	Net postretirement benefit obligations (Note 11)	$	566	$	1,049
	Net pension benefit obligations (Note 11)		218		482
	Casualty and other claims (Note 16)		214		258
	Long-term advances from Conrail (Note 5)		133		133
	Deferred compensation		120		118
	Other		193		197

	Total	$	1,444	$	2,237

Pensions_And_Other_Postretirem

Pensions And Other Postretirement Benefits	12 Months Ended
Pensions And Other Postretirement Benefits	Dec. 31, 2013
Pensions And Other Postretirement Benefits [Abstract]	'
Pensions And Other Postretirement Benefits	'
	11. Pensions and Other Postretirement Benefits

	We have both funded and unfunded defined benefit pension plans covering principally salaried employees. We also provide specified health care and death benefits to eligible retired employees and their dependents; these plans can be amended or terminated at our option. Under our health care plans, a defined percentage of health care expenses is covered, reduced by any deductibles, co-payments, Medicare payments and, in some cases, coverage provided under other group insurance policies.

	Pension and Other Postretirement Benefit Obligations and Plan Assets

								Other Postretirement
		Pension Benefits						Benefits
		2013			2012			2013		2012
		($ in millions)
	Change in benefit obligations:
	Benefit obligation at beginning of year	$	2,285		$	2,027		$	1,311	$	1,206
	Service cost		41			34			16		15
	Interest cost		81			89			50		54
	Actuarial (gains) losses		(196)			253			(471)		82
	Benefits paid		(120)			(118)			(51)		(46)
	Benefit obligation at end of year		2,091			2,285			855		1,311

	Change in plan assets:
	Fair value of plan assets at beginning of year		1,791			1,670			205		186
	Actual return on plan assets		432			227			34		19
	Employer contribution		12			12			51		46
	Benefits paid		(120)			(118)			(51)		(46)
	Fair value of plan assets at end of year		2,115			1,791			239		205

	Funded status at end of year	$	24		$	(494)		$	(616)	$	(1,106)

	Amounts recognized in the Consolidated
	Balance Sheets:
	Noncurrent assets	$	256		$	1		$	-	$	-
	Current liabilities		(14)			(13)			(50)		(57)
	Noncurrent liabilities		(218)			(482)			(566)		(1,049)

	Net amount recognized	$	24		$	(494)		$	(616)	$	(1,106)

	Amounts recognized in other comprehensive
	income (before tax):
	Net (gain) loss	$	585		$	1,160		$	(88)	$	459
	Prior service cost		4			4			-		-


	Our accumulated benefit obligation for our defined benefit pension plans is $1.9 billion and $2.1 billion at
	December 31, 2013 and 2012, respectively. Our unfunded pension plans, included above, which in all cases have no assets and therefore have an accumulated benefit obligation in excess of plan assets, had projected benefit obligations of $231 million at December 31, 2013, and $239 million at December 31, 2012, and had accumulated benefit obligations of $206 million at December 31, 2013, and $215 million at December 31, 2012.

	Pension and Other Postretirement Benefit Cost Components

		2013			2012			2011
		($ in millions)

	Pension benefits:
	Service cost	$	41		$	34		$	28
	Interest cost		81			89			92
	Expected return on plan assets		(142)			(138)			(140)
	Amortization of net losses		89			75			67
	Amortization of prior service cost		-			-			3

	Net cost	$	69		$	60		$	50

	Other postretirement benefits:
	Service cost	$	16		$	15		$	14
	Interest cost		50			54			58
	Expected return on plan assets		(16)			(15)			(15)
	Amortization of net losses		58			53			44

Net cost	$	108		$	107		$	101


Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income

	2013
					Other
	Pension				Postretirement
	Benefits				Benefits
	($ in millions)

Net gain arising during the year	$	486			$	489
Amortization of net losses		89				58

Total recognized in other comprehensive income	$	575			$	547
Total recognized in net periodic cost
and other comprehensive income	$	506			$	439


Net actuarial gains arising during the year to our pension benefits were due primarily to a higher than expected return on plan assets and an increase in our discount rate. Net actuarial gains arising during the year related to our other postretirement benefits were due to changes in our estimate of the allocation of medical claims costs between our Medicare eligible and non-Medicare eligible populations, lower estimates of prescription drug costs and an increase in our discount rate.

The estimated net losses for the pension benefit plans that will be amortized from accumulated other comprehensive loss into net periodic cost over the next year are $54 million. There is no expected amortization for the other postretirement benefit plans over the next year.

Pension and Other Postretirement Benefits Assumptions
Costs for pension and other postretirement benefits are determined based on actuarial valuations that reflect appropriate assumptions as of the measurement date, ordinarily the beginning of each year. The funded status of the plans is determined using appropriate assumptions as of each year end. A summary of the major assumptions follows:

	2013			2012			2011

Pension funded status:
Discount rate		4.60%			3.65%			4.50%
Future salary increases		4.50%			4.50%			4.50%
Other postretirement benefits funded status:
Discount rate		4.65%			3.80%			4.55%
Pension cost:
Discount rate		3.65%			4.50%			5.25%
Return on assets in plans		8.25%			8.25%			8.75%
Future salary increases		4.50%			4.50%			4.50%
Other postretirement benefits cost:
Discount rate		3.80%			4.55%			5.40%
Return on assets in plans		8.00%			8.00%			8.50%
Health care trend rate		7.33%			7.70%			8.10%


To determine the discount rates, we utilize analyses in which the projected annual cash flows from the pension and other postretirement benefit plans were matched with yield curves based on an appropriate universe of high-quality corporate bonds. We use the results of the yield curve analyses to select the discount rates that match the payment streams of the benefits in these plans.

Health Care Cost Trend Assumptions

For measurement purposes at December 31, 2013, increases in the per capita cost of covered health care benefits were assumed to be 6.94% for 2014. It is assumed the rate will decrease gradually to an ultimate rate of 5.0% for 2019 and remain at that level thereafter.

Assumed health care cost trend rates have a significant effect on the amounts reported in the consolidated financial statements. To illustrate, a one-percentage point change in the assumed health care cost trend would have the following effects:

	One-percentage point
	Increase			Decrease
	($ in millions)
Increase (decrease) in:
Total service and interest cost components	$	11		$	(9)
Postretirement benefit obligation		100			(84)



Asset Management

Nine investment firms manage our defined benefit pension plans' assets under investment guidelines approved by our Benefits Investment Committee that is comprised of members of our management. Investments are restricted to domestic and international equity securities, domestic and international fixed income securities, and unleveraged exchange-traded options and financial futures. Limitations restrict investment concentration and use of certain derivative investments. The target asset allocation for equity is 75% of the pension plans' assets. The fixed income portfolio is invested in the Barclays Government/Credit Bond Index Fund, except that the Canadian earmarked portion of the portfolio is maintained in U.S. Treasury Bonds. Equity investments must be in liquid securities listed on national exchanges. No investment is permitted in our securities (except through commingled pension trust funds). Investment managers' returns are expected to meet or exceed selected market indices by prescribed margins.

Our pension plans' weighted-average asset allocations, by asset category, were as follows:

	Percentage of plan
	assets at December 31,
	2013			2012

Domestic equity securities		54%			52%
International equity securities		22%			22%
Debt securities		20%			24%
Cash and cash equivalents		4%			2%

Total		100%			100%



The other postretirement benefit plan assets consist primarily of trust-owned variable life insurance policies with an asset allocation at December 31, 2013, of 65% in equity securities and 35% in debt securities compared with 58% in equity securities and 42% in debt securities at December 31, 2012. The target asset allocation for equity is between 50% and 75% of the plan's assets.

The plans' assumed future returns are based principally on the asset allocations and historic returns for the plans' asset classes determined from both actual plan returns and, over longer time periods, market returns for those asset classes. The expected long-term rate of return on plan assets is applied to a calculated value of plan assets that recognizes changes in fair value over a three-year period. We assumed a rate of return on pension plan assets of 8.25% for both 2013 and 2012 and 8.75% for 2011. A one-percentage point change to the rate of return assumption would result in an $18 million change to the net pension cost and, as a result, an equal change in “Compensation and benefits” expense. For 2014, we assume an 8.25% return on pension plan assets.


Fair Value of Plan Assets

Following is a description of the valuation methodologies used for pension plan assets measured at fair value.

Common stock: Shares held by the plan at year end are valued at the official closing price as defined by the exchange or at the most recent trade price of a security at the close of the active market.

Common collective trusts: Valued at the net asset value (NAV) of shares held by the plan at year end, based on the quoted market prices of the underlying assets of the trusts. The investments are valued using NAV as a practical expedient for fair value. The common collective trusts hold equity securities, fixed income securities and cash and cash equivalents.

Corporate bonds and other fixed income instruments: When available, valued at an estimated price at which a dealer would pay for a similar security at year end using observable market inputs. Otherwise, valued at an estimated price at which a dealer would pay for a similar security at year end using unobservable market inputs.

Municipal bonds: Valued at an estimated price at which a dealer would pay for a security at year end using observable market-based inputs.

Commingled funds: Valued at the NAV of shares held by the plan at year end, based on the quoted market prices of the underlying assets of the funds. The investments are valued using NAV as a practical expedient for fair value. The commingled funds hold equity securities.

Interest bearing cash: Short-term bills or notes are valued at an estimated price at which a dealer would pay for the security at year end using observable market-based inputs; money market funds are valued at the closing price reported on the active market on which the funds are traded.

United States Government and agencies securities: Valued at an estimated price at which a dealer would pay for a security at year end using observable as well as unobservable market-based inputs. Inflation adjusted instruments utilize the appropriate index factor.

Preferred stock: Shares held by the plan at year end are valued at the most recent trade price of a security at the close of the active market or at an estimated price at which a dealer would pay for a similar security at year end using primarily observable as well as unobservable market-based inputs.

The following table sets forth the pension plans' assets by valuation technique level, within the fair value hierarchy (there were no level 3 valued assets).

	31-Dec-13
	Level 1			Level 2			Total
	($ in millions)

Common stock	$	1,245		$	-		$	1,245
Common collective trusts:
Debt securities		-			423			423
International equity securities		-			265			265
Commingled funds		-			95			95
Interest bearing cash		83			-			83
U.S. government and agencies securities		-			4			4

Total investments	$	1,328		$	787		$	2,115


	31-Dec-12
	Level 1			Level 2			Total
	($ in millions)

Common stock	$	1,028		$	-		$	1,028
Common collective trusts:
Debt securities		-			433			433
International equity securities		-			211			211
Commingled funds		-			84			84
Interest bearing cash		31			-			31
U.S. government and agencies securities		-			3			3
Preferred stock		-			1			1

Total investments	$	1,059		$	732		$	1,791


Following is a description of the valuation methodologies used for other postretirement benefit plan assets measured at fair value.

Trust-owned life insurance: Valued at our share of the net assets of trust-owned life insurance issued by a major insurance company. The underlying investments of that trust consist of a U.S. stock account and a U.S. bond account, valued based upon the aggregate market values of the underlying investments. The loan asset account is valued at cash surrender value at the time of the loan, plus accrued interest.

The other postretirement benefit plan assets consisted of trust-owned life insurance with fair values of
$239 million and $205 million at December 31, 2013 and 2012, respectively, and are valued under level 2 of the fair value hierarchy. There were no level 1 or level 3 related assets.

The methods used to value pension and other postretirement benefit plan assets may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while we believe our valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date.

Contributions and Estimated Future Benefit Payments

In 2014, we expect to contribute approximately $14 million to our unfunded pension plans for payments to pensioners and approximately $50 million to our other postretirement benefit plans for retiree health and death benefits. We do not expect to contribute to our funded pension plan in 2014.

Benefit payments, which reflect expected future service, as appropriate, are expected to be paid as follows:

				Other
	Pension			Postretirement
	Benefits			Benefits
	($ in millions)

2014	$	127		$	50
2015		130			51
2016		133			52
2017		135			53
2018		137			54
Years 2019 - 2023		693			272


The other postretirement benefits payments include an estimated average annual reduction due to the Medicare Part D subsidy of approximately $6 million.

Other Postretirement Coverage

Under collective bargaining agreements, Norfolk Southern and certain subsidiaries participate in a multi-employer benefit plan, which provides certain postretirement health care and life insurance benefits to eligible union employees. Premiums under this plan are expensed as incurred and totaled $41 million in 2013, $47 million in 2012, and $48 million in 2011.

Section 401(k) Plans

Norfolk Southern and certain subsidiaries provide Section 401(k) savings plans for employees. Under the plans, we match a portion of employee contributions, subject to applicable limitations. Our matching contributions, recorded as an expense, under these plans were $19 million in 2013, $18 million in 2012, and $17 million in 2011.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
Stock-Based Compensation	Dec. 31, 2013
Stock-Based Compensation [Abstract]	'
Stock-Based Compensation	'
	12. Stock-Based Compensation

	Under the stockholder-approved Long-Term Incentive Plan (LTIP), the Compensation Committee (Committee), made up of nonemployee members of the Board of Directors or the Chief Executive Officer (if delegated such authority by the Committee), may grant stock options, stock appreciation rights (SARs), restricted stock units (RSUs), restricted shares, performance share units (PSUs), and performance shares, up to a maximum of 96,125,000 shares of our common stock (Common Stock). Of these shares, 5,000,000 were approved by the Board for issuance to non-officer participants; as a broad-based issuance, stockholder approval was not required.

	The number of shares remaining for issuance under LTIP is reduced (i) by 1 for each award granted as a stock option or stock-settled SAR, or (ii) by 1.61 for an award made in the form other than a stock option or stock-settled SAR. Under the Board-approved Thoroughbred Stock Option Plan (TSOP), the Committee may grant stock options up to a maximum of 6,000,000 shares of Common Stock; as a broad-based stock option plan, stockholder approval of TSOP was not required. We use newly issued shares to satisfy any exercises and awards under LTIP and TSOP. Shares available for future grants are shown in the table below.

	LTIP also permits the payment - on a current or a deferred basis and in cash or in stock - of dividend equivalents on shares of Common Stock covered by stock options, RSUs, or PSUs in an amount commensurate with regular quarterly dividends paid on Common Stock. With respect to stock options, if employment of the participant is terminated for any reason, including retirement, disability, or death, we have no further obligation to make any dividend equivalent payments. Regarding RSUs, if employment of the participant is terminated for any reason other than retirement, disability, or death, we have no further obligation to make any dividend equivalent payments. Should an employee terminate employment, they are not required to forfeit dividend equivalent payments already received. Outstanding PSUs do not currently receive dividend equivalent payments.

	During the first quarter of 2013, the Committee granted stock options, RSUs and PSUs pursuant to LTIP and granted stock options pursuant to TSOP. Receipt of an award under LTIP was made contingent upon the awardee's execution of a non-compete agreement, and all awards under LTIP were made subject to forfeiture in the event the awardee “engages in competing employment” for a period of time following retirement.

	Accounting Method

	We account for our grants of stock options, RSUs, PSUs, and dividend equivalent payments in accordance with ASC 718 “Compensation-Stock Compensation.” Accordingly, all awards result in charges to net income while dividend equivalent payments, which are all related to equity classified awards, are charged to retained income. Related compensation costs were $54 million in 2013, $45 million in 2012, and $61 million in 2011. The total tax effects recognized in income in relation to stock-based compensation were benefits of $18 million in 2013, $14 million in 2012, and $20 million in 2011.

	“Common stock issued - net” in the Consolidated Statements of Cash Flows for the years ended December 31, 2013, 2012, and 2011 includes tax benefits generated from tax deductions in excess of compensation costs recognized (excess tax benefits) for share-based awards of $38 million, $42 million, and $45 million, respectively.

	Stock Options

	Option exercise prices may not be less than the average of the high and low prices at which Common Stock is traded on the grant date and, effective for LTIP options granted after May 13, 2010, will be at least the higher of (i) the average of the high and low prices at which Common Stock is traded on the grant date, or (ii) the closing price of Common Stock on the grant date. All options are subject to a vesting period of at least one year, and the term of the option will not exceed ten years.

	In the first quarter of 2013, 748,200 options were granted under LTIP and 268,500 options were granted under TSOP. In each case, the grant price was $69.83. In the first quarter of 2012, 567,300 options were granted under LTIP and 210,300 options were granted under TSOP, each with a grant price of $75.14. In the first quarter of 2011, 627,700 options were granted under LTIP and 257,000 options were granted under TSOP, each with a grant price of $62.75. For all years, options granted under LTIP and TSOP may not be exercised prior to the fourth and third anniversaries of the date of grant, respectively, or if the optionee retires or dies before that anniversary date, may not be exercised before the later of one year after the grant date or the date of the optionee's retirement or death.

	Holders of the options granted under LTIP who remain actively employed receive cash dividend equivalent payments for four years in an amount equal to the regular quarterly dividends paid on Common Stock. Dividend equivalent payments are not made on TSOP options.

	The fair value of each option awarded in 2013, 2012, and 2011 was measured on the date of grant using a lattice-based option valuation model. Expected volatilities are based on implied volatilities from traded options on, and historical volatility of, Common Stock. Historical data is used to estimate option exercises and employee terminations within the valuation model. The average expected option life is derived from the output of the valuation model and represents the period of time that all options granted are expected to be outstanding, including branches of the model that result in options expiring unexercised. The average risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant. For options granted that include dividend equivalent payments, a dividend yield of zero was used. For 2013, 2012, and 2011, a dividend yield of 2.86%, 2.30%, and 2.55%, respectively, was used for LTIP options for periods where no dividend equivalent payments are made, as well as for TSOP options, which do not receive dividend equivalents. The assumptions for the LTIP and TSOP grants for the last three years are shown in the following table:

		2013			2012			2011

	Expected volatility range		24% - 30%			27% - 29%			28% - 32%
	Average expected volatility		26%			27%			28%
	Average risk-free interest rate		1.88%			1.96%			3.42%
	Average expected option term LTIP		9.0 years			8.9 years			8.5 years
	Per-share grant-date fair value LTIP		$20.40			$23.84			$22.26
	Average expected option term TSOP		8.9 years			8.8 years			8.5 years
	Per-share grant-date fair value TSOP		$15.84			$19.55			$18.10
	Options granted (LTIP and TSOP)		1,016,700			777,600			884,700

	A summary of the status of changes in stock options is presented below:

		Stock		Weighted Avg.
		Options		Exercise Price

	Outstanding at December 31, 2012	8,718,566		$	47.61
	Granted	1,016,700			69.83
	Exercised	(2,570,088)			37.08
	Forfeited	(13,000)			67.42

	Outstanding at December 31, 2013	7,152,178			54.52


	The aggregate intrinsic value of options outstanding at December 31, 2013, was $274 million with a weighted average remaining contractual term of 5.5 years. Of these options outstanding, 4,105,878 were exercisable and had an aggregate intrinsic value of $188 million with a weighted average exercise price of $46.97 and a weighted average remaining contractual term of 3.7 years.

	The following table provides information related to options exercised for the last three years:

		2013			2012			2011
		($ in millions)

	Options exercised		2,570,088			1,809,770			2,845,677
	Total intrinsic value	$	106		$	80		$	127
	Cash received upon exercise		93			47			75
	Related excess tax benefits realized		31			28			42


At December 31, 2013, total unrecognized compensation related to options granted under LTIP and TSOP was $10 million, and is expected to be recognized over a weighted-average period of approximately 2.3 years.

Restricted Stock Units

RSU grants and grant-date fair values were 162,000 and $69.83 in 2013; 140,000 and $75.14 in 2012; and 177,400 and $62.75 in 2011. RSUs granted in all three years have a five-year restriction period and will be settled through issuance of shares of Common Stock. The RSU grants include cash dividend equivalent payments during the restriction period commensurate with regular quarterly dividends paid on Common Stock. During 2013, 298,400 of the RSUs granted in 2008 vested, with 178,991 shares of Common Stock issued net of withholding taxes. A summary of the status of and changes in RSUs is presented below:

			Weighted-
			Average
			Grant-Date
	RSUs		Fair Value

Nonvested at December 31, 2012	1,102,450		$	51.75
Granted	162,000			69.83
Vested	(298,400)			50.47
Forfeited	(2,050)			61.33

Nonvested at December 31, 2013	964,000			55.17


At December 31, 2013, total unrecognized compensation related to RSUs granted under LTIP was $8 million, and is expected to be recognized over a weighted-average period of approximately 3.2 years. The total related excess tax amounts realized in 2013, 2012, and 2011 were benefits of $2 million, $3 million, and $1 million, respectively.

Performance Share Units

PSUs provide for awards based on achievement of certain predetermined corporate performance goals (total shareholder return, return on average invested capital and operating ratio) at the end of a three-year cycle. PSU grants and grant-date fair values were 550,800 and $69.83 in 2013; 468,850 and $75.14 in 2012; and 580,900 and $62.75 in 2011. PSUs granted in 2013, 2012, and 2011 will be paid in the form of shares of Common Stock. During 2013, 577,585 of the PSUs granted in 2010 were earned, with 348,189 shares of Common Stock issued net of withholding taxes. A summary of the status of and changes in PSUs is presented below:

			Weighted-
			Average
			Grant-Date
	PSUs		Fair Value

Balance at December 31, 2012	1,870,200		$	59.27
Granted	550,800			69.83
Earned	(577,585)			47.76
Unearned	(244,015)			47.76
Forfeited	(3,600)			69.09

Balance at December 31, 2013	1,595,800			68.81


At December 31, 2013, total unrecognized compensation related to PSUs granted under LTIP was $7 million, and is expected to be recognized over a weighted-average period of approximately 1.7 years. The total fair value of PSUs earned and paid in cash during 2011 totaled $27 million. The total related excess tax amounts realized in 2013, 2012, and 2011 were benefits of $5 million, $11 million, and $2 million, respectively.

Shares Available and Issued

Shares of Common Stock available for future grants and issued in connection with all features of LTIP and TSOP at December 31, were as follows:

	2013			2012			2011
Available for future grants:
LTIP		5,945,033			7,638,688			8,803,298
TSOP		1,172,256			1,434,356			1,640,456
Issued:
LTIP		2,765,986			2,337,179			3,077,739
TSOP		331,282			153,423			193,060

Stockholders_Equity

Stockholders' Equity	12 Months Ended
Stockholders' Equity	Dec. 31, 2013
Stockholders' Equity [Abstract]	'
Stockholders' Equity	'
	13. Stockholders' Equity

	Common Stock

	Common Stock is reported net of shares held by our consolidated subsidiaries (Treasury Shares). Treasury Shares at December 31, 2013 and 2012, amounted to 20,320,777, with a cost of $19 million for both 2013 and 2012.

	Accumulated Other Comprehensive Loss

	“Accumulated other comprehensive loss” reported in the Consolidated Statements of Changes in Stockholders' Equity consisted of the following:

		Balance									Balance
		at Beginning			Net			Reclassification			at End
		of Year			Gain (Loss)			Adjustments			of Year
		($ in millions)
	Year ended December 31, 2013
	Pensions and other postretirement liabilities	$	(999)		$	600		$	89	-1	$	(310)
	Other comprehensive gain (loss)
	of equity investees		(110)			39			-			(71)

	Accumulated other comprehensive loss	$	(1,109)		$	639		$	89		$	(381)

	Year ended December 31, 2012
	Pensions and other postretirement liabilities	$	(928)		$	(149)		$	78	-1	$	(999)
	Other comprehensive loss of equity investees		(98)			(12)			-			(110)

	Accumulated other comprehensive loss	$	(1,026)		$	(161)		$	78		$	(1,109)


	(1)These items are included in the computation of net periodic pension and postretirement benefit costs. See
	Note 11, “Pensions and Other Postretirement Benefits,” for additional information.

	Other Comprehensive Income (Loss)

	“Other comprehensive income (loss)” reported in the Consolidated Statements of Changes in Stockholders' Equity consisted of the following:

					Tax
		Pretax			(Expense)			Net-of-Tax
		Amount			Benefit			Amount
		($ in millions)
	Year ended December 31, 2013
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	975		$	(375)		$	600
	Reclassification adjustments for costs
	included in net income		147			(58)			89
	Subtotal		1,122			(433)			689
	Other comprehensive income of equity investees		42			(3)			39

	Other comprehensive income	$	1,164		$	(436)		$	728

	Year ended December 31, 2012
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	(242)		$	93		$	(149)
	Reclassification adjustments for costs
	included in net income		128			(50)			78
	Subtotal		(114)			43			(71)
	Other comprehensive loss of equity investees		(13)			1			(12)

	Other comprehensive loss	$	(127)		$	44		$	(83)

	Year ended December 31, 2011
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	(439)		$	169		$	(270)
	Reclassification adjustments for costs
included in net income		114			(46)			68
Subtotal		(325)			123			(202)
Other comprehensive loss of equity investees		(21)			2			(19)

Other comprehensive loss	$	(346)		$	125		$	(221)

Stock_Repurchase_Program

Stock Repurchase Program	12 Months Ended
Stock Repurchase Program	Dec. 31, 2013
Stock Repurchase Program [Abstract]	'
Stock Repurchase Program	'
	14. Stock Repurchase Program

	We repurchased and retired 8.3 million, 18.8 million, and 30.2 million shares under our share repurchase program in 2013, 2012, and 2011, respectively, at a cost of $627 million, $1.3 billion, and $2.1 billion. On August 1, 2012, our Board of Directors authorized the repurchase of up to an additional 50 million shares of Common Stock through December 31, 2017. The timing and volume of purchases is guided by our assessment of market conditions and other pertinent factors. Any near-term share repurchases are expected to be made with internally generated cash, cash on hand, or proceeds from borrowings. Since the beginning of 2006, we have repurchased and retired 136.7 million shares of Common Stock at a total cost of $8.1 billion.

Earnings_Per_Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	15. Earnings Per Share

	The following table sets forth the calculation of basic and diluted earnings per share:

		Basic						Diluted
		2013		2012		2011		2013		2012		2011
		($ in millions except per share amounts, shares in millions)

	Net income	$	1,910	$	1,749	$	1,916	$	1,910	$	1,749	$	1,916
	Dividend equivalent payments		(7)		(9)		(9)		(4)		(4)		(2)

	Income available to common stockholders		1,903		1,740		1,907		1,906		1,745		1,914

	Weighted-average shares outstanding		311.9		320.9		345.5		311.9		320.9		345.5
	Dilutive effect of outstanding options
	and share-settled awards								3.6		4.3		5.8
	Adjusted weighted-average shares outstanding								315.5		325.2		351.3

	Earnings per share	$	6.10	$	5.42	$	5.52	$	6.04	$	5.37	$	5.45


	In each year, dividend equivalent payments were made to holders of stock options and RSUs. For purposes of computing basic earnings per share, dividend equivalent payments made to holders of stock options and RSUs were deducted from net income to determine income available to common stockholders. For purposes of computing diluted earnings per share, we evaluate on a grant-by-grant basis those stock options and RSUs receiving dividend equivalent payments under the two-class and treasury stock methods to determine which method is the more dilutive for each grant. For those grants for which the two-class method was more dilutive, net income was reduced by dividend equivalent payments to determine income available to common stockholders. The diluted calculations exclude options having exercise prices exceeding the average market price of Common Stock as follows: none in 2013, 2 million in 2012, and none in 2011.

Commitments_And_Contingencies

Commitments And Contingencies	12 Months Ended
Commitments And Contingencies	Dec. 31, 2013
Commitments And Contingencies [Abstract]	'
Commitments And Contingencies	'
	16. Commitments and Contingencies

	Lawsuits

	We and/or certain subsidiaries are defendants in numerous lawsuits and other claims relating principally to railroad operations. When we conclude that it is probable that a liability has been incurred and the amount of the liability can be reasonably estimated, it is accrued through a charge to earnings. While the ultimate amount of liability incurred in any of these lawsuits and claims is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payment of such liability and claims. However, the final outcome of any of these lawsuits and claims cannot be predicted with certainty, and unfavorable or unexpected outcomes could result in additional accruals that could be significant to results of operations in a particular year or quarter. Any adjustments to the recorded liability will be reflected in earnings in the periods in which such adjustments become known.

	Two of our customers, DuPont and Sunbelt Chlor Alkai Partnership (“Sunbelt”), have rate reasonableness complaints pending before the STB alleging that our tariff rates for transportation of regulated movements are unreasonable. We dispute these allegations. Since June 1, 2009, in the case of DuPont, and since April 1, 2011, in the case of Sunbelt, we have been billing and collecting amounts based on the challenged tariff rates. We presently expect resolution of these cases to occur in 2014 and believe the estimate of reasonably possible loss will not have a material effect on our financial position, results of operations, or liquidity. With regard to rate cases, we record adjustments to revenues in the periods, if and when, such adjustments are probable and estimable.

	On November 6, 2007, various antitrust class actions filed against us and other Class I railroads in various Federal district courts regarding fuel surcharges were consolidated in the District of Columbia by the Judicial Panel on Multidistrict Litigation. The defendant railroads appealed this certification, and on August 9, 2013, the Court of Appeals for the District of Columbia vacated the District Court's decision and remanded the case for further consideration. We believe the allegations in the complaints are without merit and intend to vigorously defend the cases. We do not believe that the outcome of these proceedings will have a material effect on our financial position, results of operations, or liquidity. A lawsuit filed on March 25, 2008, in the U.S. District Court for the District of Minnesota containing similar allegations against us and four other major railroads was voluntarily dismissed by the plaintiff subject to a tolling agreement entered into in August 2008.

	Casualty Claims

	Casualty claims include employee personal injury and occupational claims as well as third-party claims, all exclusive of legal costs. To aid in valuing our personal injury liability and determining the amount to accrue with respect to such claims during the year, we utilize studies prepared by an independent consulting actuarial firm. Job-related accidental injury and occupational claims are subject to the Federal Employers' Liability Act (FELA), which is applicable only to railroads. FELA's fault-based system produces results that are unpredictable and inconsistent as compared with a no-fault workers' compensation system. The variability inherent in this system could result in actual costs being different from the liability recorded. While the ultimate amount of claims incurred is dependent on future developments, in our opinion, the recorded liability is adequate to cover the future payments of claims and is supported by the most recent actuarial study. In all cases, we record a liability when the expected loss for the claim is both probable and estimable.

	The Consolidated Balance Sheets reflect long-term receivables for estimated recoveries from our insurance carriers for claims associated with the January 6, 2005, derailment in Graniteville, S.C. In the first quarter of 2011, we received an unfavorable ruling for an arbitration claim with an insurance carrier, and were denied recovery of the contested portion of the claim. As a result, we recorded a $43 million charge for the receivables associated with the contested portion of the claim and a $15 million charge for other receivables affected by the ruling for which recovery is no longer probable.

	Employee personal injury claims - The largest component of casualties and other claims expense is employee personal injury costs. The independent actuarial firm engaged by us provides quarterly studies to aid in valuing our employee personal injury liability and estimating personal injury expense. The actuarial firm studies our historical patterns of reserving for claims and subsequent settlements, taking into account relevant outside influences. The actuarial firm uses the results of these analyses to estimate the ultimate amount of liability, which includes amounts for incurred but unasserted claims. We adjust the liability quarterly based upon our assessment and the results of the study. Our estimate of loss liabilities is subject to inherent limitation given the difficulty of predicting future events such as jury decisions, court interpretations, or legislative changes and as such the actual loss may vary from the estimated liability recorded.

	Occupational claims - Occupational claims (including asbestosis and other respiratory diseases, as well as conditions allegedly related to repetitive motion) are often not caused by a specific accident or event but rather allegedly result from a claimed exposure over time. Many such claims are being asserted by former or retired employees, some of whom have not been employed in the rail industry for decades. The independent actuarial firm provides an estimate of the occupational claims liability based upon our history of claim filings, severity, payments, and other pertinent facts. The liability is dependent upon judgments we make as to the specific case reserves as well as judgments of the actuarial firm in the quarterly studies. The actuarial firm's estimate of ultimate loss includes a provision for those claims that have been incurred but not reported. This provision is derived by analyzing industry data and projecting our experience into the future as far as can be reasonably determined. We adjust the liability quarterly based upon our assessment and the results of the study. However, it is possible that the recorded liability may not be adequate to cover the future payment of claims. Adjustments to the recorded liability are reflected in operating expenses in the periods in which such adjustments become known.

	Third-party claims - We record a liability for third-party claims including those for highway crossing accidents, trespasser and other injuries, automobile liability, property damage, and lading damage. The actuarial firm assists us with the calculation of potential liability for third-party claims, except lading damage, based upon our experience including the number and timing of incidents, amount of payments, settlement rates, number of open claims, and legal defenses. The actuarial estimate includes a provision for claims that have been incurred but not reported. We adjust the liability quarterly based upon our assessment and the results of the study. Given the inherent uncertainty in regard to the ultimate outcome of third-party claims, it is possible that the actual loss may differ from the estimated liability recorded.

	Environmental Matters

	We are subject to various jurisdictions' environmental laws and regulations. We record a liability where such liability or loss is probable and its amount can be estimated reasonably. Claims, if any, against third parties, for recovery of cleanup costs we have incurred are reflected as receivables (when collection is probable) in the Consolidated Balance Sheets and are not netted against the associated liability. Environmental engineers regularly participate in ongoing evaluations of all known sites and in determining any necessary adjustments to liability estimates. We have an Environmental Policy Council, composed of senior managers, to oversee and interpret our environmental policy.

	Our Consolidated Balance Sheets include liabilities for environmental exposures of $58 million at December 31, 2013, and $42 million at December 31, 2012 (of which $15 million is classified as a current liability at December 31, 2013 and $12 million at December 31, 2012). At December 31, 2013, the liability represents our estimate of the probable cleanup and remediation costs based on available information at 142 known locations and projects compared with 146 locations and projects at December 31, 2012. At December 31, 2013, ten sites accounted for $30 million of the liability, and no individual site was considered to be material. We anticipate that much of this liability will be paid out over five years; however, some costs will be paid out over a longer period.

	At 12 locations, one or more of our subsidiaries in conjunction with a number of other parties have been identified as potentially responsible parties under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or comparable state statutes that impose joint and several liability for cleanup costs. We calculate our estimated liability for these sites based on facts and legal defenses applicable to each site and not solely on the basis of the potential for joint liability.

	With respect to known environmental sites (whether identified by us or by the EPA or comparable state authorities), estimates of our ultimate potential financial exposure for a given site or in the aggregate for all such sites are necessarily imprecise because of the widely varying costs of currently available cleanup techniques, unpredictable contaminant recovery and reduction rates associated with available cleanup technologies, the likely development of new cleanup technologies, the difficulty of determining in advance the nature and full extent of contamination and each potential participant's share of any estimated loss (and that participant's ability to bear it), and evolving statutory and regulatory standards governing liability.

	The risk of incurring environmental liability - for acts and omissions, past, present, and future - is inherent in the railroad business. Some of the commodities in our traffic mix, particularly those classified as hazardous materials, pose special risks that we work diligently to minimize. In addition, several of our subsidiaries own, or have owned, land used as operating property, or which is leased and operated by others, or held for sale. Because environmental problems that are latent or undisclosed may exist on these properties, there can be no assurance that we will not incur environmental liabilities or costs with respect to one or more of them, the amount and materiality of which cannot be estimated reliably at this time. Moreover, lawsuits and claims involving these and potentially other unidentified environmental sites and matters are likely to arise from time to time. The resulting liabilities could have a significant effect on financial position, results of operations, or liquidity in a particular year or quarter.

	Based on our assessment of the facts and circumstances now known, we believe we have recorded the probable and reasonably estimable costs for dealing with those environmental matters of which we are aware. Further, we believe that it is unlikely that any known matters, either individually or in the aggregate, will have a material adverse effect on our financial position, results of operations, or liquidity.

	Insurance

	We obtain on behalf of ourself and our subsidiaries insurance for potential losses for third-party liability and first-party property damages. We are currently self-insured up to $50 million and above $1.0 billion per occurrence and/or policy year for bodily injury and property damage to third parties and up to $25 million and above $175 million per occurrence and/or policy year for property owned by us or in our care, custody, or control.

	Purchase Commitments

	At December 31, 2013, we had outstanding purchase commitments totaling approximately $353 million for long-term service contracts through 2019 as well as locomotives, track material, and freight cars, in connection with our capital programs through 2018.

	Change-In-Control Arrangements

	We have compensation agreements with certain officers and key employees that become operative only upon a change in control of Norfolk Southern, as defined in those agreements. The agreements provide generally for payments based on compensation at the time of a covered individual's involuntary or other specified termination and for certain other benefits.
	Guarantees

	In a number of instances, we have agreed to indemnify lenders for additional costs they may bear as a result of certain changes in laws or regulations applicable to their loans. Such changes may include impositions or modifications with respect to taxes, duties, reserves, liquidity, capital adequacy, special deposits, and similar requirements relating to extensions of credit by, deposits with, or the assets or liabilities of such lenders. The nature and timing of changes in laws or regulations applicable to our financings are inherently unpredictable, and therefore our exposure in connection with the foregoing indemnifications cannot be quantified. No liability has been recorded related to these indemnifications.

	We have agreed to indemnify parties in a number of transactions for U.S. income tax withholding imposed as a result of changes in U.S. tax law. In all cases, we have the right to unwind the related transaction if the withholding cannot be avoided in the future. Because these indemnities would be triggered and are dependent upon a change in the tax law, the maximum exposure is not quantifiable. We do not believe it is likely that we will be required to make any payments under these indemnities.

	At December 31, 2013, certain Norfolk Southern subsidiaries are contingently liable as guarantors with respect to $7 million of indebtedness, due in 2019, of an entity in which they have an ownership interest, the Terminal Railroad Association of St. Louis. Four other railroads are also jointly and severally liable as guarantors for this indebtedness. No liability has been recorded related to this guaranty.

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
Quarterly Financial Data (Unaudited)	Dec. 31, 2013
Quarterly Financial Data (Unaudited) [Abstract]	'
Quarterly Financial Data (Unaudited)	'

	NORFOLK SOUTHERN CORPORATION AND SUBSIDIARIES
	QUARTERLY FINANCIAL DATA
	(Unaudited)

		Three Months Ended
		31-Mar		June 30		30-Sep		31-Dec
		($ in millions, except per share amounts)
	2013
	Railway operating revenues	$	2,738	$	2,802	$	2,824	$	2,881
	Income from railway operations		691		836		849		881
	Net income		450		465		482		513
	Earnings per share:
	Basic		1.43		1.47		1.55		1.66
	Diluted		1.41		1.46		1.53		1.64

	2012
	Railway operating revenues	$	2,789	$	2,874	$	2,693	$	2,684
	Income from railway operations		745		934		731		714
	Net income		410		524		402		413
	Earnings per share:
	Basic		1.24		1.62		1.26		1.31
	Diluted		1.23		1.60		1.24		1.30

Schedule_II_Valuation_And_Qual

Schedule II - Valuation And Qualifying Accounts	12 Months Ended
Schedule II - Valuation And Qualifying Accounts	Dec. 31, 2013
Schedule II - Valuation And Qualifying Accounts [Abstract]	'
Schedule II - Valuation And Qualifying Accounts	'
	Schedule II

	Norfolk Southern Corporation and Subsidiaries
	Valuation and Qualifying Accounts
	Years ended December 31, 2011, 2012, and 2013
	($ in millions)

				Additions charged to:

		Beginning					Other						Ending
		Balance		Expenses			Accounts			Deductions			Balance

	Year ended December 31, 2011
	Valuation allowance (included net in
	deferred tax liability) for deferred
	tax assets	$	21	$	-		$	-		$	2		$	19
	Casualty and other claims
	included in other liabilities		261		102	-1		1			89	-3		275
	Current portion of casualty and
	other claims included in
	accounts payable		254		16			133	-2		202	-4		201

	Year ended December 31, 2012
	Valuation allowance (included net in
	deferred tax liability) for deferred
	tax assets	$	19	$	-		$	-		$	-		$	19
	Casualty and other claims
	included in other liabilities		275		76	-1		-			93	-3		258
	Current portion of casualty and
	other claims included in
	accounts payable		201		18			157	-2		193	-4		183

	Year ended December 31, 2013
	Valuation allowance (included net in
	deferred tax liability) for deferred
	tax assets	$	19	$	13		$	-		$	-		$	32
	Casualty and other claims
	included in other liabilities		258		33	-1		-			77	-3		214
	Current portion of casualty and
	other claims included in
	accounts payable		183		15			101	-2		133	-4		166


	(1)Includes adjustments for changes in estimates for prior years' claims.
	(2)Includes revenue refunds and overcharges provided through deductions from operating revenues and transfers
	from other accounts.
	(3)Payments and reclassifications to/from accounts payable.
	(4)Payments and reclassifications to/from other liabilities.

Summary_Of_Significant_Account1

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
Summary Of Significant Accounting Policies (Policy)	Dec. 31, 2013
Summary Of Significant Accounting Policies [Abstract]	'
Description Of Business	'
	Description of Business

	Norfolk Southern Corporation is a Virginia-based holding company engaged principally in the rail transportation business, operating approximately 20,000 miles of road primarily in the East and Midwest. These consolidated financial statements include Norfolk Southern Corporation (Norfolk Southern) and its majority-owned and controlled subsidiaries (collectively, NS, we, us, and our). Norfolk Southern's major subsidiary is Norfolk Southern Railway Company (NSR). All significant intercompany balances and transactions have been eliminated in consolidation.

	NSR and its railroad subsidiaries transport raw materials, intermediate products and finished goods classified in the following commodity groups (percent of total railway operating revenues in 2013): coal (23%); intermodal (21%); chemicals (15%); agriculture/consumer products/government (13%); metals/construction (12%); automotive (9%); and, paper/clay/forest products (7%). Although most of our customers are domestic, ultimate points of origination or destination for some of the products transported (particularly coal bound for export and some intermodal containers) may be outside the U.S. More than 80% of our railroad employees are covered by collective bargaining agreements with various labor unions.
Use Of Estimates	'
	Use of Estimates

	The preparation of financial statements in accordance with U.S. Generally Accepted Accounting Principles (GAAP) requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. We periodically review our estimates, including those related to the recoverability and useful lives of assets, as well as liabilities for litigation, environmental remediation, casualty claims, income taxes and pension and other postretirement benefits. Changes in facts and circumstances may result in revised estimates.
Revenue Recognition	'
	Revenue Recognition

	Transportation revenue is recognized proportionally as a shipment moves from origin to destination, and related expenses are recognized as incurred. Refunds (which are primarily volume-based incentives) are recorded as a reduction to revenues on the basis of management's best estimate of projected liability, which is based on historical activity, current shipment counts and the expectation of future activity. We regularly monitor our contract refund liability and, historically, the estimates have not differed significantly from the amounts ultimately refunded. Switching, demurrage and other incidental service revenues are recognized when the services are performed.
Cash Equivalents	'
	Cash Equivalents

	“Cash equivalents” are highly liquid investments purchased three months or less from maturity.
Allowance For Doubtful Accounts	'
	Allowance for Doubtful Accounts

	Our allowance for doubtful accounts was $3 million at both December 31, 2013 and 2012. To determine our allowance for doubtful accounts, we evaluate historical loss experience (which has not been significant), the characteristics of current accounts, and general economic conditions and trends.
Materials And Supplies	'
	Materials and Supplies

	“Materials and supplies,” consisting mainly of fuel oil and items for maintenance of property and equipment, are stated at the lower of average cost or market. The cost of materials and supplies expected to be used in property additions or improvements is included in “Properties.”
Investments	'
	Investments

	Debt securities classified as “held-to-maturity” are reported at amortized cost.

	Investments where we have the ability to exercise significant influence over but do not control the entity are accounted for using the equity method, whereby the investment is carried at the cost of the acquisition plus our equity in undistributed earnings or losses since acquisition.
Properties	'
	Properties

	“Properties” are stated principally at cost and are depreciated using the group method whereby assets with similar characteristics, use, and expected lives are grouped together in asset classes and depreciated using a composite depreciation rate. This methodology treats each asset class as a pool of resources, not as singular items. We use more than 60 depreciable asset classes. The primary depreciation method for our asset base is group life. Units of production is the principal method of depreciation for rail in high density corridors and for depletion of natural resources (Note 2). Remaining properties are depreciated generally using the straight-line method over the lesser of estimated service or lease lives. Depreciation in the Consolidated Statements of Cash Flows includes both depreciation and depletion.

	Depreciation expense is based on our assumptions concerning expected service lives of our properties as well as the expected net salvage that will be received upon their retirement. In developing these assumptions, we utilize periodic depreciation studies that are performed by an independent outside firm of consulting engineers and approved by the Surface Transportation Board (STB). Our depreciation studies are conducted about every three years for equipment and every six years for track assets and other roadway property. The frequency of these studies is consistent with guidelines established by the STB. Key factors which are considered in developing average service life and salvage estimates include:

	statistical analysis of historical retirement data and surviving asset records;
	review of historical salvage received and current market rates;
	review of our operations including expected changes in technology, customer demand, maintenance practices and asset management strategies;
	review of accounting policies and assumptions; and
	industry review and analysis.


	The units of production depreciation rate for rail in high density corridors is derived based on consideration of annual gross ton miles as compared to the total or ultimate capacity of rail in these corridors. Our experience has shown that traffic density is a leading factor in determination of the expected service life of rail in high density corridors. In developing the respective depreciation rate, consideration is also given to several rail characteristics including age, weight, condition (new or second hand) and type (curve or straight). As a result, a composite depreciation rate is developed which is applied to the depreciable base.

	We adjust our rates based on the results of these studies and implement the changes prospectively. The studies may also indicate that the recorded amount of accumulated depreciation is deficient (or in excess) of the amount indicated by the study. Any such deficiency (or excess) is amortized as a component of depreciation expense over the remaining service lives of the affected class of property, as determined by the study. For 2013, roadway depreciation rates ranged from 0.83% to 33.3% and equipment depreciation rates ranged from 1.40% to 33.33%.

	We capitalize interest on major projects during the period of their construction. Expenditures, including those on leased assets, that extend an asset's useful life or increase its utility, are capitalized. Expenditures capitalized include those that are directly related to a capital project and may include materials, labor and equipment, in addition to an allocable portion of indirect costs that clearly relate to a particular project. Due to the capital intensive nature of the railroad industry, a significant portion of annual capital spending relates to the replacement of self-constructed assets. Because removal activities occur in conjunction with replacement, removal costs are estimated based on an average percentage of time employees replacing assets spend on removal functions. Costs related to repairs and maintenance activities that do not extend an asset's useful life or increase its utility are expensed when such repairs are performed.

	When properties other than land and nonrail assets are sold or retired in the ordinary course of business, the cost of the assets, net of sale proceeds or salvage, is charged to accumulated depreciation, and no gain or loss is recognized in earnings. Actual historical cost values are retired when available, such as with equipment assets. The use of estimates in recording the retirement of certain roadway assets is necessary based on the impracticality of tracking individual asset costs. When retiring rail, ties and ballast, we use statistical curves that indicate the relative distribution of the age of the assets retired. The historical cost of other roadway assets is estimated using a combination of inflation indices specific to the rail industry and those published by the U.S. Bureau of Labor Statistics. The indices are applied to the replacement value based on the age of the retired assets. These indices are used because they closely correlate with the costs of roadway assets. Gains and losses on disposal of land and nonrail assets are included in “Other income - net” (Note 2) since such income is not a product of our railroad operations.

	A retirement is considered abnormal if it does not occur in the normal course of business, if it relates to disposition of a large segment of an asset class and if the retirement varies significantly from the retirement profile identified through our depreciation studies, which inherently consider the impact of normal retirements on expected service lives and depreciation rates. Gains or losses from abnormal retirements are recognized in earnings.

	We review the carrying amount of properties whenever events or changes in circumstances indicate that such carrying amount may not be recoverable based on future undiscounted cash flows. Assets that are deemed impaired as a result of such review are recorded at the lower of carrying amount or fair value.
Required Accounting Changes	'
	Required Accounting Changes

	In the first quarter of 2013, we prospectively adopted Accounting Standards Update (ASU) No. 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income.” This update requires the disclosure of the effects of reclassifications out of Accumulated Other Comprehensive Loss on the respective line items in our Consolidated Statements of Income if the amount being reclassified is required under GAAP to be reclassified in its entirety to net income. We don't have any such items. For other amounts that are not required to be reclassified in their entirety to net income in the same reporting period, we are required to cross-reference other required GAAP disclosures to provide additional detail about those amounts. We include these disclosures in our “Stockholders' Equity” (Note 13) footnote. This update does not change the requirement to present the components of net income and other comprehensive income in either a single continuous statement or two separate consecutive statements, nor does it change the items currently reported in other comprehensive income.

Other_Income_Net_Tables

Other Income - Net (Tables)	12 Months Ended
Other Income - Net (Tables)	Dec. 31, 2013
Other Income - Net [Abstract]	'
Other Income - Net	'
		2013		2012		2011
		($ in millions)
	Income from natural resources:
	Royalties from coal	$	50	$	72	$	86
	Nonoperating depletion and depreciation		(6)		(6)		(7)
	Subtotal		44		66		79

	Gains and losses from sale of properties		101		5		32
	Rental income		61		54		51
	Equity in earnings of Conrail Inc. (Note 5)		42		34		31
	Corporate-owned life insurance - net		25		13		8
	Interest income		8		8		9
	Taxes on nonoperating property		(10)		(10)		(9)
	Charitable contributions		(11)		(9)		(9)
	Other interest expense - net		(12)		(9)		(3)
	Other		(15)		(23)		(29)

	Total	$	233	$	129	$	160

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
Income Taxes (Tables)	Dec. 31, 2013
Income Taxes [Abstract]	'
Provisions For Income Taxes	'
		2013		2012			2011
		($ in millions)
	Current:
	Federal	$	695	$	569		$	432
	State		98		74			43
	Total current taxes		793		643			475

	Deferred:
	Federal		270		339			506
	State		(8)		27			21
	Total deferred taxes		262		366			527

	Provision for income taxes	$	1,055	$	1,009		$	1,002

Reconciliation Of Statutory Rate To Effective Rate	'
		2013				2012				2011
		Amount		%		Amount			%	Amount		%
		($ in millions)

	Federal income tax at statutory rate	$	1,038	35		$	965		35	$	1,021	35
	State income taxes, net of federal tax effect		69	2			69		3		69	2
	Internal Revenue Service (IRS) audit, settlement		-	-			(6)		-		(40)	(1)
	State tax law changes, net of federal tax effect		(11)	-			(3)		-		(28)	(1)
	Other, net		(41)	(1)			(16)		(1)		(20)	(1)

	Provision for income taxes	$	1,055	36		$	1,009		37	$	1,002	34

Schedule Of Deferred Tax Assets And Liabilities	'
		December 31,
		2013		2012
		($ in millions)
	Deferred tax assets:
	Compensation and benefits, including postretirement	$	462	$	834
	Accruals, including casualty and other claims		114		139
	Other		54		41
	Total gross deferred tax assets		630		1,014
	Less valuation allowance		(32)		(19)

	Net deferred tax asset		598		995

	Deferred tax liabilities:
	Property		(8,494)		(8,188)
	Other		(466)		(472)
	Total gross deferred tax liabilities		(8,960)		(8,660)

	Net deferred tax liability		(8,362)		(7,665)
	Net current deferred tax asset		180		167

	Net long-term deferred tax liability	$	(8,542)	$	(7,832)

Reconciliation Of Unrecognized Tax Benefits	'
		December 31,
		2013		2012
		($ in millions)

	Balance at beginning of year	$	63	$105

	Additions based on tax positions related to the current year		3	6
	Additions for tax positions of prior years		4	-
	Reductions for tax positions of prior years		(1)	(20		)
	Settlements with taxing authorities		(2)	(23		)
	Lapse of statutes of limitations		(2)	(5		)

	Balance at end of year	$	65	$63

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value [Abstract]	'
Schedule Of Carrying Amounts And Estimated Fair Values	'
		2013					2012
		Carrying			Fair		Carrying			Fair
		Amount			Value		Amount			Value
		($ in millions)

	Long-term investments	$	148		$	177	$	139		$	174
	Long-term debt, including current maturities		(9,348)			(10,673)		(8,482)			(10,734)

Schedule Of Fair Value Of Long-term Assets And Liabilities	'
			31-Dec-13
			Level 1					Level 2					Total
			($ in millions)

	Long-term investments		$		47			$		130			$		177
	Long-term debt, including current maturities				(10,449)					(224)					(10,673)

		31-Dec-12
		Level 1					Level 2					Total
		($ in millions)

	Long-term investments	$		41			$		133			$		174
	Long-term debt, including current maturities			(10,450)					(284)					(10,734)

Investments_Tables

Investments (Tables)	12 Months Ended
Investments (Tables)	Dec. 31, 2013
Investments [Abstract]	'
Investments	'
		December 31,
		2013		2012
		($ in millions)
	Short-term investments:
	Commercial paper, 2 months	$	98	$	-
	Federal government bonds, held-to-maturity, with average
	maturities of 3 and 5 months, respectively		20		15

	Total short-term investments	$	118	$	15

	Long-term investments:
	Equity method investments:
	Conrail Inc.	$	1,075	$	996
	TTX Company		404		383
	Meridian Speedway LLC		278		281
	Pan Am Southern LLC		155		155
	Other		90		82
	Total equity method investments		2,002		1,897

	Company-owned life insurance at net cash surrender value		289		264
	Other investments		148		139

	Total long-term investments	$	2,439	$	2,300

Properties_Tables

Properties (Tables)	12 Months Ended
Properties (Tables)	Dec. 31, 2013
Properties [Abstract]	'
Properties	'

				Accumulated		Net Book		Depreciation
	At December 31, 2013	Cost		Depreciation		Value		Rate		-1
		($ in millions)

	Land	$	2,253	$	-	$	2,253		-

	Roadway:
	Rail and other track material		5,934		(1,782)		4,152		2.46%
	Ties		4,464		(1,100)		3,364		3.24%
	Ballast		2,244		(468)		1,776		2.65%
	Construction in process		405		-		405		-
	Other roadway		11,704		(2,814)		8,890		2.55%
	Total roadway		24,751		(6,164)		18,587

	Equipment:
	Locomotives		4,814		(1,918)		2,896		3.42%
	Freight cars		3,225		(1,429)		1,796		2.78%
	Computers and software		513		(292)		221		11.07%
	Construction in process		139		-		139		-
	Other equipment		862		(316)		546		6.15%
	Total equipment		9,553		(3,955)		5,598

	Other property		475		(268)		207		1.15%

	Total properties	$	37,032	$	(10,387)	$	26,645
				Accumulated		Net Book		Depreciation
	At December 31, 2012	Cost		Depreciation		Value		Rate		-1
		($ in millions)

	Land	$	2,240	$	-	$	2,240		-

	Roadway:
	Rail and other track material		5,699		(1,707)		3,992		2.48%
	Ties		4,255		(1,027)		3,228		3.28%
	Ballast		2,128		(437)		1,691		2.61%
	Construction in process		378		-		378		-
	Other roadway		11,223		(2,636)		8,587		2.57%
	Total roadway		23,683		(5,807)		17,876

	Equipment:
	Locomotives		4,576		(1,798)		2,778		3.54%
	Freight cars		3,214		(1,502)		1,712		2.95%
	Computers and software		480		(270)		210		13.29%
	Construction in process		177		-		177		-
	Other equipment		817		(282)		535		5.99%
	Total equipment		9,264		(3,852)		5,412

	Other property		471		(263)		208		1.31%

	Total properties	$	35,658	$	(9,922)	$	25,736

	(1) Composite annual depreciation rate for the underlying assets, excluding the effects of the amortization of any
	deficiency (or excess) that resulted from our depreciation studies.

Current_Liabilities_Tables

Current Liabilities (Tables)	12 Months Ended
Current Liabilities (Tables)	Dec. 31, 2013
Current Liabilities [Abstract]	'
Current Liabilities	'
		December 31,
		2013		2012
		($ in millions)
	Accounts payable:
	Accounts and wages payable	$	685	$	777
	Due to Conrail (Note 5)		187		178
	Casualty and other claims (Note 16)		166		183
	Vacation liability		130		129
	Other		97		95

	Total	$	1,265	$	1,362

	Other current liabilities:
	Interest payable	$	121	$	112
	Postretirement and pension benefit obligations (Note 11)		64		70
	Other		85		81

	Total	$	270	$	263

Debt_Tables

Debt (Tables)	12 Months Ended
Debt (Tables)	Dec. 31, 2013
Debt [Abstract]	'
Debt With Interest Rates And Maturities	'

		December 31,
		2013		2012
		($ in millions)
	Notes and debentures:
	6.16% maturing to 2018	$	2,082	$	2,082
	6.16% maturing 2019 to 2021		1,397		1,397
	3.22% maturing 2022 to 2024		1,600		1,200
	6.93% maturing 2025 to 2037		1,402		1,403
	4.81% maturing 2041 to 2043		1,833		1,333
	6.39% maturing 2097 to 2111		1,328		1,328
	Securitization borrowings, 1.23%		200		300
	Other debt, 7.94% maturing 2024		101		151
	Discounts and premiums, net		(495)		(512)
	Total debt		9,448		8,682
	Less current maturities and short-term debt		(545)		(250)

	Long-term debt excluding current maturities and short-term debt	$	8,903	$	8,432


	Long-term debt maturities subsequent to 2014 are as follows:
	2015	$	1
	2016		500
	2017		550
	2018		600
	2019 and subsequent years		7,252

	Total	$	8,903

Lease_Commitments_Tables

Lease Commitments (Tables)	12 Months Ended
Lease Commitments (Tables)	Dec. 31, 2013
Lease Commitments [Abstract]	'
Future Minimum Lease Payments	'
		Operating		Capital
		Leases		Leases
		($ in millions)

	2014	$	80	$	2
	2015		74		1
	2016		62		-
	2017		54		-
	2018		50		-
	2019 and subsequent years		418		2

	Total	$	738		5
	Less imputed interest on capital leases at an average rate of 5.50%				(1)

	Present value of minimum lease payments included in debt			$	4

Operating Lease Expense	'
		2013		2012		2011
		($ in millions)

	Minimum rents	$	121	$	129	$	150
	Contingent rents		82		73		77

	Total	$	203	$	202	$	227

Other_Liabilities_Tables

Other Liabilities (Tables)	12 Months Ended
Other Liabilities (Tables)	Dec. 31, 2013
Other Liabilities [Abstract]	'
Other Liabilities	'
		December 31,
		2013		2012
		($ in millions)

	Net postretirement benefit obligations (Note 11)	$	566	$	1,049
	Net pension benefit obligations (Note 11)		218		482
	Casualty and other claims (Note 16)		214		258
	Long-term advances from Conrail (Note 5)		133		133
	Deferred compensation		120		118
	Other		193		197

	Total	$	1,444	$	2,237

Pensions_And_Other_Postretirem1

Pensions And Other Postretirement Benefits (Tables)	12 Months Ended
Pensions And Other Postretirement Benefits (Tables)	Dec. 31, 2013
Pensions And Other Postretirement Benefits [Abstract]	'
Pension And Other Postretirement Benefit Obligations And Plan Assets	'
							Other Postretirement
		Pension Benefits					Benefits
		2013		2012			2013		2012
		($ in millions)
	Change in benefit obligations:
	Benefit obligation at beginning of year	$	2,285	$	2,027		$	1,311	$	1,206
	Service cost		41		34			16		15
	Interest cost		81		89			50		54
	Actuarial (gains) losses		(196)		253			(471)		82
	Benefits paid		(120)		(118)			(51)		(46)
	Benefit obligation at end of year		2,091		2,285			855		1,311

	Change in plan assets:
	Fair value of plan assets at beginning of year		1,791		1,670			205		186
	Actual return on plan assets		432		227			34		19
	Employer contribution		12		12			51		46
	Benefits paid		(120)		(118)			(51)		(46)
	Fair value of plan assets at end of year		2,115		1,791			239		205

	Funded status at end of year	$	24	$	(494)		$	(616)	$	(1,106)

	Amounts recognized in the Consolidated
	Balance Sheets:
	Noncurrent assets	$	256	$	1		$	-	$	-
	Current liabilities		(14)		(13)			(50)		(57)
	Noncurrent liabilities		(218)		(482)			(566)		(1,049)

	Net amount recognized	$	24	$	(494)		$	(616)	$	(1,106)

	Amounts recognized in other comprehensive
	income (before tax):
	Net (gain) loss	$	585	$	1,160		$	(88)	$	459
	Prior service cost		4		4			-		-

Pension And Other Postretirement Benefit Cost Components	'
		2013		2012			2011
		($ in millions)

	Pension benefits:
	Service cost	$	41	$	34		$	28
	Interest cost		81		89			92
	Expected return on plan assets		(142)		(138)			(140)
	Amortization of net losses		89		75			67
	Amortization of prior service cost		-		-			3

	Net cost	$	69	$	60		$	50

	Other postretirement benefits:
	Service cost	$	16	$	15		$	14
	Interest cost		50		54			58
	Expected return on plan assets		(16)		(15)			(15)
	Amortization of net losses		58		53			44

	Net cost	$	108	$	107		$	101

Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Loss	'
		2013
					Other
		Pension			Postretirement
		Benefits			Benefits
		($ in millions)

	Net gain arising during the year	$	486		$	489
	Amortization of net losses		89			58

	Total recognized in other comprehensive income	$	575		$	547
	Total recognized in net periodic cost
	and other comprehensive income	$	506		$	439

Pension And Other Postretirement Benefit Assumptions	'

		2013		2012			2011

	Pension funded status:
	Discount rate		4.60%		3.65%			4.50%
	Future salary increases		4.50%		4.50%			4.50%
	Other postretirement benefits funded status:
	Discount rate		4.65%		3.80%			4.55%
	Pension cost:
	Discount rate		3.65%		4.50%			5.25%
	Return on assets in plans		8.25%		8.25%			8.75%
	Future salary increases		4.50%		4.50%			4.50%
	Other postretirement benefits cost:
	Discount rate		3.80%		4.55%			5.40%
	Return on assets in plans		8.00%		8.00%			8.50%
	Health care trend rate		7.33%		7.70%			8.10%


Health Care Cost Trend Assumptions	'
		One-percentage point
		Increase		Decrease
		($ in millions)
	Increase (decrease) in:
	Total service and interest cost components	$	11	$	(9)
	Postretirement benefit obligation		100		(84)

Pension Plan Weighted-Average Asset Allocations, By Asset Category	'
		Percentage of plan
		assets at December 31,
		2013		2012

	Domestic equity securities		54%		52%
	International equity securities		22%		22%
	Debt securities		20%		24%
	Cash and cash equivalents		4%		2%

	Total		100%		100%

Fair Value Of Plan Assets	'
		31-Dec-13
		Level 1		Level 2			Total
		($ in millions)

	Common stock	$	1,245	$	-		$	1,245
	Common collective trusts:
	Debt securities		-		423			423
	International equity securities		-		265			265
	Commingled funds		-		95			95
	Interest bearing cash		83		-			83
	U.S. government and agencies securities		-		4			4

	Total investments	$	1,328	$	787		$	2,115


		31-Dec-12
		Level 1		Level 2			Total
		($ in millions)

	Common stock	$	1,028	$	-		$	1,028
	Common collective trusts:
	Debt securities		-		433			433
	International equity securities		-		211			211
	Commingled funds		-		84			84
	Interest bearing cash		31		-			31
	U.S. government and agencies securities		-		3			3
	Preferred stock		-		1			1

	Total investments	$	1,059	$	732		$	1,791

Estimated Future Benefit Payments	'
				Other
		Pension		Postretirement
		Benefits		Benefits
		($ in millions)

	2014	$	127	$	50
	2015		130		51
	2016		133		52
	2017		135		53
	2018		137		54
	Years 2019 - 2023		693		272

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
Stock-Based Compensation (Tables)	Dec. 31, 2013
Schedule Of Assumptions Used For LTIP And TSOP Grants	'
		2013			2012		2011

	Expected volatility range		24% - 30%			27% - 29%		28% - 32%
	Average expected volatility		26%			27%		28%
	Average risk-free interest rate		1.88%			1.96%		3.42%
	Average expected option term LTIP		9.0 years			8.9 years		8.5 years
	Per-share grant-date fair value LTIP		$20.40			$23.84		$22.26
	Average expected option term TSOP		8.9 years			8.8 years		8.5 years
	Per-share grant-date fair value TSOP		$15.84			$19.55		$18.10
	Options granted (LTIP and TSOP)		1,016,700			777,600		884,700

Schedule Of Stock Option Activity	'
		Stock		Weighted Avg.
		Options		Exercise Price

	Outstanding at December 31, 2012	8,718,566		$	47.61
	Granted	1,016,700			69.83
	Exercised	(2,570,088)			37.08
	Forfeited	(13,000)			67.42

	Outstanding at December 31, 2013	7,152,178			54.52

Summary Of Stock Options Exercised	'
		2013			2012		2011
		($ in millions)

	Options exercised		2,570,088			1,809,770		2,845,677
	Total intrinsic value	$	106		$	80	$	127
	Cash received upon exercise		93			47		75
	Related excess tax benefits realized		31			28		42

Schedule Of Stock Available For Future Grants	'
		2013			2012		2011
	Available for future grants:
	LTIP		5,945,033			7,638,688		8,803,298
	TSOP		1,172,256			1,434,356		1,640,456
	Issued:
	LTIP		2,765,986			2,337,179		3,077,739
	TSOP		331,282			153,423		193,060

Restricted Stock Units (RSUs) [Member]	'
Schedule Of Other Share Activity	'
				Weighted-
				Average
				Grant-Date
		RSUs		Fair Value

	Nonvested at December 31, 2012	1,102,450		$	51.75
	Granted	162,000			69.83
	Vested	(298,400)			50.47
	Forfeited	(2,050)			61.33

	Nonvested at December 31, 2013	964,000			55.17

Performance Share Units (PSUs) [Member]	'
Schedule Of Other Share Activity	'
				Weighted-
				Average
				Grant-Date
		PSUs		Fair Value

	Balance at December 31, 2012	1,870,200		$	59.27
	Granted	550,800			69.83
	Earned	(577,585)			47.76
	Unearned	(244,015)			47.76
	Forfeited	(3,600)			69.09

	Balance at December 31, 2013	1,595,800			68.81

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	12 Months Ended
Stockholders' Equity (Tables)	Dec. 31, 2013
Stockholders' Equity [Abstract]	'
Accumulated Other Comprehensive Loss	'

		Balance							Balance
		at Beginning		Net		Reclassification			at End
		of Year		Gain (Loss)		Adjustments			of Year
		($ in millions)
	Year ended December 31, 2013
	Pensions and other postretirement liabilities	$	(999)	$	600	$	89	-1	$	(310)
	Other comprehensive gain (loss)
	of equity investees		(110)		39		-			(71)

	Accumulated other comprehensive loss	$	(1,109)	$	639	$	89		$	(381)

	Year ended December 31, 2012
	Pensions and other postretirement liabilities	$	(928)	$	(149)	$	78	-1	$	(999)
	Other comprehensive loss of equity investees		(98)		(12)		-			(110)

	Accumulated other comprehensive loss	$	(1,026)	$	(161)	$	78		$	(1,109)


	(1)These items are included in the computation of net periodic pension and postretirement benefit costs. See
	Note 11, “Pensions and Other Postretirement Benefits,” for additional information.
Other Comprehensive Income (Loss) Of Equity Investees	'
				Tax
		Pretax		(Expense)		Net-of-Tax
		Amount		Benefit		Amount
		($ in millions)
	Year ended December 31, 2013
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	975	$	(375)	$	600
	Reclassification adjustments for costs
	included in net income		147		(58)		89
	Subtotal		1,122		(433)		689
	Other comprehensive income of equity investees		42		(3)		39

	Other comprehensive income	$	1,164	$	(436)	$	728

	Year ended December 31, 2012
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	(242)	$	93	$	(149)
	Reclassification adjustments for costs
	included in net income		128		(50)		78
	Subtotal		(114)		43		(71)
	Other comprehensive loss of equity investees		(13)		1		(12)

	Other comprehensive loss	$	(127)	$	44	$	(83)

	Year ended December 31, 2011
	Net gain (loss) arising during the year:
	Pensions and other postretirement benefits	$	(439)	$	169	$	(270)
	Reclassification adjustments for costs
	included in net income		114		(46)		68
	Subtotal		(325)		123		(202)
	Other comprehensive loss of equity investees		(21)		2		(19)

	Other comprehensive loss	$	(346)	$	125	$	(221)

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule Of Earnings Per Share Calculation	'
		Basic						Diluted
		2013		2012		2011		2013		2012		2011
		($ in millions except per share amounts, shares in millions)

	Net income	$	1,910	$	1,749	$	1,916	$	1,910	$	1,749	$	1,916
	Dividend equivalent payments		(7)		(9)		(9)		(4)		(4)		(2)

	Income available to common stockholders		1,903		1,740		1,907		1,906		1,745		1,914

	Weighted-average shares outstanding		311.9		320.9		345.5		311.9		320.9		345.5
	Dilutive effect of outstanding options
	and share-settled awards								3.6		4.3		5.8
	Adjusted weighted-average shares outstanding								315.5		325.2		351.3

	Earnings per share	$	6.10	$	5.42	$	5.52	$	6.04	$	5.37	$	5.45

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
Quarterly Financial Data (Unaudited) (Tables)	Dec. 31, 2013
Quarterly Financial Data (Unaudited) [Abstract]	'
Quarterly Financial Data (Unaudited)	'
		Three Months Ended
		31-Mar		June 30		30-Sep		31-Dec
		($ in millions, except per share amounts)
	2013
	Railway operating revenues	$	2,738	$	2,802	$	2,824	$	2,881
	Income from railway operations		691		836		849		881
	Net income		450		465		482		513
	Earnings per share:
	Basic		1.43		1.47		1.55		1.66
	Diluted		1.41		1.46		1.53		1.64

	2012
	Railway operating revenues	$	2,789	$	2,874	$	2,693	$	2,684
	Income from railway operations		745		934		731		714
	Net income		410		524		402		413
	Earnings per share:
	Basic		1.24		1.62		1.26		1.31
	Diluted		1.23		1.60		1.24		1.30

Summary_Of_Significant_Account2

Summary Of Significant Accounting Policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Operating route miles	20,000	'
Employees covered by collective bargaining agreements	80.00%	'
Allowance for doubtful accounts	$3	$3
Number of depreciable asset classes used, low end of range	60	'
Depreciation studies description	'Our depreciation studies are conducted about every three years for equipment and every six years for track assets and other roadway property.	'
Coal [Member]	'	'
Market groups percent of total railway operating revenues	23.00%	'
Intermodal [Member]	'	'
Market groups percent of total railway operating revenues	21.00%	'
Agriculture/Consumer Products/Government [Member]	'	'
Market groups percent of total railway operating revenues	13.00%	'
Chemicals [Member]	'	'
Market groups percent of total railway operating revenues	15.00%	'
Metals/Construction [Member]	'	'
Market groups percent of total railway operating revenues	12.00%	'
Paper/Clay/Forest Products [Member]	'	'
Market groups percent of total railway operating revenues	7.00%	'
Automotive [Member]	'	'
Market groups percent of total railway operating revenues	9.00%	'
Roadway [Member]	'	'
Depreciation rate range minimum	0.83%	'
Depreciation rate range maximum	33.33%	'
Equipment [Member]	'	'
Depreciation rate range minimum	1.40%	'
Depreciation rate range maximum	33.33%	'

Other_Income_Net_Details

Other Income - Net (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Income - Net [Abstract]	'	'	'
Royalties from coal	$50	$72	$86
Nonoperating depletion and depreciation	-6	-6	-7
Total income from natural resources	44	66	79
Gains and losses from sale of properties	101	5	32
Rental income	61	54	51
Equity in the earnings of Conrail Inc. (Note 5)	42	34	31
Corporate-owned life insurance-net	25	13	8
Interest income	8	8	9
Taxes on nonoperating property	-10	-10	-9
Charitable Contributions	-11	-9	-9
Other interest expense-net	-12	-9	-3
Other	-15	-23	-29
Total other income - net	$233	$129	$160

Income_Taxes_Narrative_Details

Income Taxes (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]	'	'	'
Change in valuation allowance	$13	$0	'
Unrecognized tax benefits that would impact effective tax rate	25	'	'
Unrecognized tax benefits, period increase (decrease)	-8	'	'
Interest expense related to unrecognized tax benefits	-1	1	10
Interest accrued related to unrecognized tax benefits	$4	$3	'

Income_Taxes_Provisions_For_In

Income Taxes (Provisions For Income Taxes) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]	'	'	'
Current federal	$695	$569	$432
Current state	98	74	43
Total current income taxes	793	643	475
Deferred federal	270	339	506
Deferred state	-8	27	21
Total deferred income taxes	262	366	527
Provision for income taxes	$1,055	$1,009	$1,002

Income_Taxes_Reconciliation_Of

Income Taxes (Reconciliation Of Statutory Rate To Effective Rate) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Abstract]	'	'	'
Federal income tax at statutory rate	$1,038	$965	$1,021
State income taxes, net of Federal tax effect	69	69	69
State tax law changes, net of federal tax effect	-11	-3	-28
Internal Revenue Service audit, settlement	0	-6	-40
Other, net	-41	-16	-20
Provision for income taxes	$1,055	$1,009	$1,002
Federal income tax at statutory rate	35.00%	35.00%	35.00%
State income taxes, net of Federal tax effect	2.00%	3.00%	2.00%
State tax law changes, net of federal tax effect	0.00%	0.00%	-1.00%
Internal Revenue Service audit, settlement	0.00%	0.00%	-1.00%
Other, net	-1.00%	-1.00%	-1.00%
Provision for income taxes	36.00%	37.00%	34.00%

Income_Taxes_Schedule_Of_Defer

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]	'	'
Compensation and benefits, including postretirement	$462	$834
Accruals, including casualty and other claims	114	139
Other	54	41
Total gross deferred tax assets	630	1,014
Less valuation allowance	-32	-19
Net deferred tax asset	598	995
Property	-8,494	-8,188
Other	-466	-472
Total gross deferred tax liabilities	-8,960	-8,660
Net deferred tax liability	-8,362	-7,665
Net current deferred tax asset	180	167
Net long-term deferred tax liability	($8,542)	($7,832)

Income_Taxes_Reconciliation_Of1

Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Taxes [Abstract]	'	'
Balance at beginning of year	$63	$105
Additions based on tax positions related to current year	3	6
Additions for tax positions of prior years	4	0
Reductions for tax positions of prior years	-1	-20
Settlements with taxing authorities	-2	-23
Lapse of statutes of limitations	-2	-5
Balance at end of year	$65	$63

Fair_Value_Details

Fair Value (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value [Abstract]	'	'	'
Long-term investments, carrying value	$148	$139	'
Long-term investments, fair value	177	174	'
Long-term debt, including current maturities, carrying value	-9,348	-8,482	'
Long-term debt, including current maturities, fair value	-10,673	-10,734	'
Sales of available-for-sale securities	$0	$0	$81

Fair_Value_Schedule_of_Fair_Va

Fair Value (Schedule of Fair Value of Long-term Assets and Liabilities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Fair Value Assets And Liabilities [Line Items]	'	'
Long-term investments, fair value	$177	$174
Long-term debt, including current maturities, fair value	-10,673	-10,734
Fair Value Inputs Level1 [Member]	'	'
Fair Value Assets And Liabilities [Line Items]	'	'
Long-term investments, fair value	47	41
Long-term debt, including current maturities, fair value	-10,449	-10,450
Fair Value Inputs Level 2 [Member]	'	'
Fair Value Assets And Liabilities [Line Items]	'	'
Long-term investments, fair value	130	133
Long-term debt, including current maturities, fair value	($224)	($284)

Investments_Details

Investments (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Investments [Line Items]	'	'	'
Total short-term investments	$118	$15	'
Other	90	82	'
Total equity method investments	2,002	1,897	'
Company-owned life insurance at net cash surrender value	289	264	'
Other investments	148	139	'
Total long-term investments	2,439	2,300	'
Difference between investment in Conrail and share of Conrail's underlying net equity	535	'	'
Equity in the earnings of Conrail	42	34	31
Expenses for the use of the Shared Assets Area	146	147	131
Future annual minimum payments due thereafter	418	'	'
General and administrative support to Conrail	8	8	8
Due to affiliate, current	187	178	'
Due to affiliate, noncurrent	133	133	'
Due to affiliate, noncurrent, maturity date	'2035	'2035	'
Due to affiliate, average interest rate	4.40%	4.40%	'
Conrail Inc. [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investments	1,075	996	'
Pension plan status change in investment, affiliate	37	-7	'
Portion of pension plan change attributable to other comprehensive income (loss), affiliate	34	-6	'
Portion of pension plan change attributable to deferred taxes, affiliate	-3	1	'
Conrail Equity [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investment, ownership percentage	58.00%	'	'
Conrail Voting [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investment, ownership percentage	50.00%	'	'
TTX Company [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investments	404	383	'
Meridian Speedway LLC [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investments	278	281	'
Pan Am Southern LLC [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Equity method investments	155	155	'
Commercial Paper [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Held-to-maturity securities	98	0	'
Federal Government Bonds [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Held-to-maturity securities	20	15	'
Shared Assets Areas CRC Lease [Member]	'	'	'
Schedule of Investments [Line Items]	'	'	'
Future annual minimum payments, due next five years	35	'	'
Future annual minimum payments due thereafter	$185	'	'

Investments_Parenthetical_Deta

Investments (Parenthetical) (Details)	Dec. 31, 2013	Dec. 31, 2012
Investments [Abstract]	'	'
Held To Maturity Commercial Paper Maturity Date	2	'
Average federal government bonds held-to-maturity, months	3	5

Properties_Details

Properties (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Line Items]	'	'	'
Cost	$37,032	$35,658	'
Accumulated Depreciation	-10,387	-9,922	'
Net Book Value	26,645	25,736	'
Railway property recorded pursuant to capital leases	8	9	'
Capital lease assets - accumulated depreciation	3	3	'
Costs of obtaining rights to natural resources	336	336	'
Costs of obtaining rights to natural resources - accumulated depletion	195	192	'
Interest cost incurred on debt	543	515	474
Capitalized interest	18	20	19
Land [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	2,253	2,240	'
Net Book Value	2,253	2,240	'
Depreciation Rate	0.00%	0.00%	'
Rail And Other Track Material [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	5,934	5,699	'
Accumulated Depreciation	-1,782	-1,707	'
Net Book Value	4,152	3,992	'
Depreciation Rate	2.46%	2.48%	'
Ties [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	4,464	4,255	'
Accumulated Depreciation	-1,100	-1,027	'
Net Book Value	3,364	3,228	'
Depreciation Rate	3.24%	3.28%	'
Ballast [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	2,244	2,128	'
Accumulated Depreciation	-468	-437	'
Net Book Value	1,776	1,691	'
Depreciation Rate	2.65%	2.61%	'
Construction In Process - roadway [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	405	378	'
Net Book Value	405	378	'
Depreciation Rate	0.00%	0.00%	'
Other Roadway [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	11,704	11,223	'
Accumulated Depreciation	-2,814	-2,636	'
Net Book Value	8,890	8,587	'
Depreciation Rate	2.55%	2.57%	'
Total Roadway [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	24,751	23,683	'
Accumulated Depreciation	-6,164	-5,807	'
Net Book Value	18,587	17,876	'
Locomotives [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	4,814	4,576	'
Accumulated Depreciation	-1,918	-1,798	'
Net Book Value	2,896	2,778	'
Depreciation Rate	3.42%	3.54%	'
Freight Cars [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	3,225	3,214	'
Accumulated Depreciation	-1,429	-1,502	'
Net Book Value	1,796	1,712	'
Depreciation Rate	2.78%	2.95%	'
Computers and Software [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	513	480	'
Accumulated Depreciation	-292	-270	'
Net Book Value	221	210	'
Depreciation Rate	11.07%	13.29%	'
Construction In Process - Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	139	177	'
Net Book Value	139	177	'
Depreciation Rate	0.00%	0.00%	'
Other Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	862	817	'
Accumulated Depreciation	-316	-282	'
Net Book Value	546	535	'
Depreciation Rate	6.15%	5.99%	'
Equipment [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	9,553	9,264	'
Accumulated Depreciation	-3,955	-3,852	'
Net Book Value	5,598	5,412	'
Other property [Member]	'	'	'
Property, Plant and Equipment [Line Items]	'	'	'
Cost	475	471	'
Accumulated Depreciation	-268	-263	'
Net Book Value	$207	$208	'
Depreciation Rate	1.15%	1.31%	'

Current_Liabilities_Details

Current Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Current Liabilities [Abstract]	'	'
Accounts and wages payable	$685	$777
Casualty and other claims	166	183
Due to Conrail	187	178
Vacation liability	130	129
Other accounts payable	97	95
Total accounts payable	1,265	1,362
Interest payable	121	112
Postretirement benefit and pension obligations	64	70
Other current liabilities	85	81
Total other current liabilities	$270	$263

Debt_Narrative_Details

Debt (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]	'	'	'
Cash premium, debt exchange	$115	'	'
Original debt	521	'	'
Receivables securitization facility - total to be borrowed	'	350	'
Proceeds From ShortTerm Debt	'	100	'
Repayments of short-term debt	'	200	'
Accounts receivable securitization balance	'	200	300
Average variable interest rate	'	1.23%	1.28%
Intent to refinance	'	100	'
Credit agreement	'	750	'
Short-term debt	'	100	200
Receivables securitization facility term, days	'	364	'
Collateral for securitization borrowings	'	747	751
Authority to issue debt/equity securities	'	800	'
Credit agreement term, years	'	5	'
Credit agreement due date, year	'	'2016	'
Senior Note 2.90% Due 2023 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
New debt, debt exchange	600	'	'
New rate, debt exchange	2.90%	'	'
New due date, debt exchange	'2023	'	'
Senior Note 7.25% Due 2031 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Original due date, year	'2031	'	'
Original debt	156	'	'
Original rate	7.25%	'	'
Senior Note 5.64% Due 2029 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Original due date, year	'2029	'	'
Original debt	140	'	'
Original rate	5.64%	'	'
Senior Note 5.59% Due 2025 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Original due date, year	'2025	'	'
Original debt	115	'	'
Original rate	5.59%	'	'
Senior Note 7.80% Due 2027 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Original due date, year	'2027	'	'
Original debt	72	'	'
Original rate	7.80%	'	'
Senior Note 7.05% Due 2037 [Member]	'	'	'
Debt Instrument [Line Items]	'	'	'
Original due date, year	'2037	'	'
Original debt	$38	'	'
Original rate	7.05%	'	'

Debt_Debt_With_Interest_Rates_

Debt (Debt With Interest Rates And Maturities) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]	'	'
Securitization borrowings	$200	$300
Discounts and premiums, net	-495	-512
Total Debt	9,448	8,682
Current maturities and short-term debt	-545	-250
Long-term debt	8,903	8,432
2015 long-term debt maturities	1	'
2016 long-term debt maturities	500	'
2017 long-term debt maturities	550	'
2018 long-term debt maturities	600	'
2019 and subsequent years long-term debt maturities	7,252	'
Debt Maturing To 2018 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	2,082	2,082
Long-term debt weighted average interest rate	6.16%	'
Debt Maturing 2019 To 2021 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	1,397	1,397
Long-term debt weighted average interest rate	6.16%	'
Debt Maturing 2022 To 2024 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	1,600	1,200
Long-term debt weighted average interest rate	3.22%	'
Debt Maturing 2025 To 2037 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	1,402	1,403
Long-term debt weighted average interest rate	6.93%	'
Debt Maturing 2041 To 2043 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	1,833	1,333
Long-term debt weighted average interest rate	4.81%	'
Debt Maturing 2097 To 2111 [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt maturing	1,328	1,328
Long-term debt weighted average interest rate	6.39%	'
Securitization Borrowings [Member]	'	'
Debt Instrument [Line Items]	'	'
Securitization borrowings	200	300
Long-term debt weighted average interest rate	1.23%	'
Other Debt [Member]	'	'
Debt Instrument [Line Items]	'	'
Other debt	$101	$151
Long-term debt weighted average interest rate	7.94%	'

Lease_Commitments_Details

Lease Commitments (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Lease Commitments [Abstract]	'	'	'
2014 - Operating Leases	$80	'	'
2015 - Operating Leases	74	'	'
2016 - Operating Leases	62	'	'
2017 - Operating Leases	54	'	'
2018 - Operating Leases	50	'	'
2019 and subsequent years - Operating Leases	418	'	'
Total - Operating Leases	738	'	'
2014 - Capital Leases	2	'	'
2015 - Capital Leases	1	'	'
2016 - Capital Leases	0	'	'
2017 - Capital Leases	0	'	'
2018 - Capital Leases	0	'	'
2019 and subsequent years - Capital Leases	2	'	'
Total - Capital Leases	5	'	'
Imputed interest on capital leases	-1	'	'
Present value of minimum lease payments - capital leases	4	'	'
Average rate of imputed interest on capital leases	5.50%	'	'
Operating lease expense - minimum rents	121	129	150
Operating lease expense - contingent rents	82	73	77
Total operating lease expense	$203	$202	$227

Other_Liabilities_Details

Other Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Other Liabilities [Abstract]	'	'
Net postretirement benefit obligations (Note 11)	$566	$1,049
Net pension obligations (Note 11)	218	482
Casualty and other claims (Note 16)	214	258
Long-term advances from Conrail (Note 5)	133	133
Deferred compensation	120	118
Other	193	197
Total	$1,444	$2,237

Pensions_And_Other_Postretirem2

Pensions And Other Postretirement Benefits (Narrative) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined benefit plan's accumulated benefit obligation	$1,900	$2,100	'
Unfunded pension plans projected benefit obligation	231	239	'
Unfunded pension plans accumulated benefit obligations	206	215	'
Assumed increases in per capita cost of covered health care benefits	6.94%	'	'
Defined Benefit Plan, Actual Plan Asset Allocations	100.00%	100.00%	'
Postretirement benefit plan target asset allocation for equity, minimum	50.00%	'	'
Postretirement benefit plan target asset allocation for equity, maximum	75.00%	'	'
Assumed rate of return on pension plan assets	8.25%	8.25%	8.75%
One-percentage point change to rate of return change to net pension (benefit) cost	18	'	'
Estimated average annual reduction due to Medicare Part D subsidy	6	'	'
Multi-employer benefit plan premiums	41	47	48
Section 401 (k) savings plans matching contributions	19	18	17
Per Capita Cost Rate Assumption2019 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Ultimate health care cost trend rate	5.00%	'	'
Pension Benefits [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Estimated net loss for defined pension plans amortized from AOCI into net periodic cost	54	'	'
Pension plan assets target allocation for equity	75.00%	'	'
Assumed rate of return on pension plan assets	8.25%	8.25%	8.75%
Expected contribution for the next fiscal year	14	'	'
Employer contribution	12	12	'
OPEB [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Estimated net loss for other defined benefit postretirement plans amortized from AOCI into net periodic benefit cost	0	'	'
Assumed rate of return on pension plan assets	8.00%	8.00%	8.50%
Expected contribution for the next fiscal year	50	'	'
Employer contribution	51	46	'
Pension Plan Rate Of Return Assumption 2013 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Assumed rate of return on pension plan assets	8.25%	'	'
Fair Value Inputs Level 2 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Trust-owned life insurance fair value	239	205	'
Equity Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan, Actual Plan Asset Allocations	65.00%	58.00%	'
Common collective trusts	265	211	'
Equity Securities [Member] \| Fair Value Inputs Level 2 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Common collective trusts	265	211	'
Debt Securities [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Defined Benefit Plan, Actual Plan Asset Allocations	35.00%	42.00%	'
Common collective trusts	423	433	'
Debt Securities [Member] \| Fair Value Inputs Level 2 [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Common collective trusts	$423	$433	'

Pensions_And_Other_Postretirem3

Pensions And Other Postretirement Benefits (Pension And Other Postretirement Benefit Obligations And Plan Assets) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Benefit obligation at beginning of year	$2,285	$2,027	'
Service cost	41	34	28
Interest cost	81	89	92
Actuarial losses	-196	253	'
Benefits paid	-120	-118	'
Benefit obligation at end of year	2,091	2,285	2,027
Fair value of plan assets at beginning of year	1,791	1,670	'
Actual return on plan assets	432	227	'
Employer contribution	12	12	'
Fair value of plan assets at end of year	2,115	1,791	1,670
Funded status at end of year	24	-494	'
Noncurrent assets recognized in the Consolidated Balance Sheet	256	1	'
Current liabilities recognized in the Consolidated Balance Sheet	-14	-13	'
Noncurrent liabilities recognized in the Consolidated Balance Sheet	-218	-482	'
Net amount recognized	24	-494	'
Net loss recognized in accumulated other comprehensive loss (pretax)	585	1,160	'
Prior service cost recognized in accumulated other comprehensive loss (pretax)	4	4	'
OPEB [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Benefit obligation at beginning of year	1,311	1,206	'
Service cost	16	15	14
Interest cost	50	54	58
Actuarial losses	-471	82	'
Benefits paid	-51	-46	'
Benefit obligation at end of year	855	1,311	1,206
Fair value of plan assets at beginning of year	205	186	'
Actual return on plan assets	34	19	'
Employer contribution	51	46	'
Fair value of plan assets at end of year	239	205	186
Funded status at end of year	-616	-1,106	'
Noncurrent assets recognized in the Consolidated Balance Sheet	0	0	'
Current liabilities recognized in the Consolidated Balance Sheet	-50	-57	'
Noncurrent liabilities recognized in the Consolidated Balance Sheet	-566	-1,049	'
Net amount recognized	-616	-1,106	'
Net loss recognized in accumulated other comprehensive loss (pretax)	-88	459	'
Prior service cost recognized in accumulated other comprehensive loss (pretax)	$0	$0	'

Pensions_And_Other_Postretirem4

Pensions And Other Postretirement Benefits (Pension And Other Postretirement Benefit Cost Components) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Service cost	$41	$34	$28
Interest cost	81	89	92
Expected return on plan assets	-142	-138	-140
Amortization of net losses	89	75	67
Amortization of prior service cost	0	0	3
Net cost	69	60	50
OPEB [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Service cost	16	15	14
Interest cost	50	54	58
Expected return on plan assets	-16	-15	-15
Amortization of net losses	58	53	44
Net cost	$108	$107	$101

Pensions_And_Other_Postretirem5

Pensions And Other Postretirement Benefits (Other Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Loss) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Pension Benefits [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net loss arising during the year	$486
Amortization of net losses	89
Total recognized in other comprehensive loss	575
Total recognized in net periodic cost and other comprehensive loss	506
OPEB [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
Net loss arising during the year	489
Amortization of net losses	58
Total recognized in other comprehensive loss	547
Total recognized in net periodic cost and other comprehensive loss	$439

Pensions_And_Other_Postretirem6

Pensions And Other Postretirement Benefits (Pension And Other Postretirement Benefit Assumptions) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Return on assets in plans - assumption	8.25%	8.25%	8.75%
Funded Status [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Discount rate - assumption	4.60%	3.65%	4.50%
Future salary increases - assumption	4.50%	4.50%	4.50%
Other Postretirement Benefits Funded Status [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Discount rate - assumption	4.65%	3.80%	4.55%
Pension Benefits [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Discount rate - assumption	3.65%	4.50%	5.25%
Return on assets in plans - assumption	8.25%	8.25%	8.75%
Future salary increases - assumption	4.50%	4.50%	4.50%
OPEB [Member]	'	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'	'
Discount rate - assumption	3.80%	4.55%	5.40%
Return on assets in plans - assumption	8.00%	8.00%	8.50%
Health care trend rate	7.33%	7.70%	8.10%

Pensions_And_Other_Postretirem7

Pensions And Other Postretirement Benefits (Health Care Cost Trend Assumptions) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Pensions And Other Postretirement Benefits [Abstract]	'
One-percentage point increase change in total service and interest cost components	$11
One-percentage point decrease change total service and interest cost components	-9
One-percentage point increase change in postretirement benefit obligations	100
One-percentage point decrease change in postretirement benefit obligations	($84)

Pensions_And_Other_Postretirem8

Pensions And Other Postretirement Benefits (Pension Plan Weighted-Average Asset Allocations, By Asset Category) (Details)	Dec. 31, 2013	Dec. 31, 2012
Pensions And Other Postretirement Benefits [Abstract]	'	'
Domestic equity securities - pension plan asset allocation	54.00%	52.00%
International equity securities - pension plan asset allocation	22.00%	22.00%
Debt securities - pension plan allocation	20.00%	24.00%
Cash and cash equivalents - pension plan allocation	4.00%	2.00%
Total percentage of plan assets	100.00%	100.00%

Pensions_And_Other_Postretirem9

Pensions And Other Postretirement Benefits (Fair Value Of Plan Assets) (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]	'	'
Common Stock	$1,245	$1,028
Commingled funds	95	84
Interest bearing cash	83	31
U.S. government and agencies securities	4	3
Preferred stock	'	1
Total pension plan assets	2,115	1,791
Fair Value Inputs Level1 [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Common Stock	1,245	1,028
Interest bearing cash	83	31
Total pension plan assets	1,328	1,059
Fair Value Inputs Level 2 [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Commingled funds	95	84
U.S. government and agencies securities	4	3
Preferred stock	'	1
Total pension plan assets	787	732
International Equity Securities [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Common collective trusts	265	211
International Equity Securities [Member] \| Fair Value Inputs Level 2 [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Common collective trusts	265	211
Debt Securities [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Common collective trusts	423	433
Debt Securities [Member] \| Fair Value Inputs Level 2 [Member]	'	'
Defined Benefit Plan Disclosure [Line Items]	'	'
Common collective trusts	$423	$433

Recovered_Sheet1

Pensions And Other Postretirement Benefits (Estimated Future Benefit Payments) (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified	Dec. 31, 2013
Pension Benefits [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014 estimated future benefit payments	$127
2015 estimated future benefit payments	130
2016 estimated future benefit payments	133
2017 estimated future benefit payments	135
2018 estimated future benefit payments	137
Years 2019-2023 estimated future benefit payments	693
OPEB [Member]	'
Defined Benefit Plan Disclosure [Line Items]	'
2014 estimated future benefit payments	50
2015 estimated future benefit payments	51
2016 estimated future benefit payments	52
2017 estimated future benefit payments	53
2018 estimated future benefit payments	54
Years 2019-2023 estimated future benefit payments	$272

StockBased_Compensation_Narrat

Stock-Based Compensation (Narrative) (Details) (USD $)

1 Months Ended

12 Months Ended

3 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

31-May-11

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Mar. 31, 2013

Mar. 31, 2012

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

TSOP [Member]

LTIP And TSOP [Member]

Restricted Stock Units (RSUs) [Member]

Performance Share Units (PSUs) [Member]

Non-Officer Participants [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Maximum number of shares available for grant

6,000,000

5,000,000

Amended LTIP plan-award granted as an option or stock appreciation right

Amended LTIP plan - award granted in a form other than option or stock appreciation right

1.61

Compensation costs

$54

$45

$61

Tax benefits associated with compensation costs

Excess tax benefits recognized for share-based awards

Stock option term, in years

23-Jan-23

25-Jan-22

26-Jan-21

Stock options granted

1,016,700

268,500

210,300

257,000

1,016,700

777,600

884,700

Grant price of options granted

$69.83

$75.14

$62.75

Award vesting period, grant anniversary

'3 years

Dividend yield for period dividend equivalents paid

0.00%

Dividend yield for period dividend equivalents not paid

2.86%

2.30%

2.55%

Aggregate intrinsic value of options outstanding

274

Weighted average remaining contractual term of options outstanding

'5 years 6 months 0 days

Number of shares exercisable

4,105,878

Aggregate intrinsic value of options exercisable

188

Weighted average remaining contractual term of options exercisable

'3 years 8 months 12 days

Exercisable weighted average exercise price

$46.97

Unrecognized compensation related to stock options granted

Unrecognized compensation, weighted average period of recognition

'2 years 3 months 18 days

'3 years 2 months 14 days

'1 year 8 months 12 days

Units other than stock options granted

162,000

140,000

177,400

550,800

468,850

580,900

Grant-date fair value of units granted

$69.83

$75.14

$62.75

$69.83

$75.14

$62.75

Restriction period, in years

Fair value of units paid in cash

Excess tax benefit/expense realized

$11

Shares issued net of withholding taxes

178,991

348,189

StockBased_Compensation_Schedu

Stock-Based Compensation (Schedule Of Assumptions Used For LTIP And TSOP Grants) (Details) (USD $)	3 Months Ended			12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Expected volatility rate, minimum	'	'	'	24.00%	27.00%	28.00%
Expected volatility rate, maximum	'	'	'	30.00%	29.00%	32.00%
Average expected volatility rate	'	'	'	26.00%	27.00%	28.00%
Average risk-free interest rate	'	'	'	1.88%	1.96%	3.42%
Stock options granted	'	'	'	1,016,700	'	'
Ltip [Member]	'	'	'	'	'	'
Average expected option term, in years	'	'	'	'9 years 0 months 0 days	'8 years 10 months 24 days	'8 years 6 months 0 days
Option per share grant-date fair value	'	'	'	$20.40	$23.84	$22.26
Stock options granted	748,200	567,300	627,700	'	'	'
TSOP [Member]	'	'	'	'	'	'
Average expected option term, in years	'	'	'	'8 years 10 months 24 days	'8 years 9 months 19 days	'8 years 6 months 0 days
Option per share grant-date fair value	'	'	'	$15.84	$19.55	$18.10
Stock options granted	268,500	210,300	257,000	'	'	'
LTIP And TSOP [Member]	'	'	'	'	'	'
Stock options granted	'	'	'	1,016,700	777,600	884,700

StockBased_Compensation_Schedu1

Stock-Based Compensation (Schedule Of Stock Option Activity) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]	'	'	'
Stock options outstanding at December 31, 2012	8,718,566	'	'
Stock options granted	1,016,700	'	'
Stock options exercised	-2,570,088	-1,809,770	-2,845,677
Stock options forfeited	-13,000	'	'
Stock options outstanding at December 31, 2013	7,152,178	8,718,566	'
Weighted average exercise price of stock options outstanding at December 31, 2012	$47.61	'	'
Weighted average exercise price of stock options granted	$69.83	'	'
Weighted average exercise price of stock options exercised	$37.08	'	'
Weighted average exercise price of stock options forfeited	$67.42	'	'
Weighted average exercise price of stock options outstanding at December 31, 2013	$54.52	$47.61	'

StockBased_Compensation_Summar

Stock-Based Compensation (Summary Of Stock Options Exercised) (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]	'	'	'
Options exercised	2,570,088	1,809,770	2,845,677
Total intrinsic value	$106	$80	$127
Cash received upon exercise of options	93	47	75
Related excess tax benefits realized	$31	$28	$42

StockBased_Compensation_Summar1

Stock-Based Compensation (Summary Of Stock Awards Outstanding) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Stock Units (RSUs) [Member]	'	'	'
Balance at December 31, 2012	1,102,450	'	'
Granted	162,000	140,000	177,400
Vested	-298,400	'	'
Forfeited	-2,050	'	'
Balance at December 31, 2013	964,000	1,102,450	'
Weighted-average grant-date fair value at December 31, 2012	$51.75	'	'
Weighted-average grant-date fair value of shares granted	$69.83	$75.14	$62.75
Weighted-average grant-date fair value of shares vested	$50.47	'	'
Weighted-average grant-date fair value of shares forfeited	$61.33	'	'
Weighted-average grant-date fair value at December 31, 2013	$55.17	$51.75	'
Performance Share Units Psus [Member]	'	'	'
Balance at December 31, 2012	1,870,200	'	'
Granted	550,800	468,850	580,900
Forfeited	-3,600	'	'
Performance share units earned - paid in Common Stock	-577,585	'	'
Performance share units unearned	-244,015	'	'
Balance at December 31, 2013	1,595,800	1,870,200	'
Weighted-average grant-date fair value at December 31, 2012	$59.27	'	'
Weighted-average grant-date fair value of shares granted	$69.83	$75.14	$62.75
Weighted-average grant-date fair value of shares forfeited	$69.09	'	'
Weighted-average grant-date fair value of shares earned - paid in Common Stock	$47.76	'	'
Weighted-average grant-date fair value of shares unearned	$47.76	'	'
Weighted-average grant-date fair value at December 31, 2013	$68.81	$59.27	'

StockBased_Compensation_Schedu2

Stock-Based Compensation (Schedule Of Stock Available For Future Grants) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
TSOP [Member]	'	'	'
Available for future grants	1,172,256	1,434,356	1,640,456
Shares of Common Stock issued	331,282	153,423	193,060
Ltip [Member]	'	'	'
Available for future grants	5,945,033	7,638,688	8,803,298
Shares of Common Stock issued	2,765,986	2,337,179	3,077,739

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Shares held by consolidated subsidiaries	20,320,777	20,320,777	'
Value of shares held by consolidated subsidiaries	$19	$19	'
Pensions and other postretirement liabilities - beginning balance	999	928	'
Pensions and other postretirement liabilities - net gain (loss)	600	-149	'
Pensions and other postretirement liabilities - reclassification adjustments	89	78	'
Pensions and other postretirement liabilities - ending balance	310	999	928
Other comprehensive loss of equity investees - beginning balance	-110	-98	'
Other comprehensive loss of equity investees - net gain (loss)	39	-12	'
Other comprehensive loss of equity investees - ending balance	-71	-110	-98
Accumulated other comprehensive loss - beginning balance	-1,109	-1,026	'
Accumulated other comprehensive loss - net gain loss	639	-161	'
Accumulated other comprehensive loss - reclassification adjustment	89	78	'
Accumulated other comprehensive loss - ending balance	-381	-1,109	-1,026
Other comprehensive income (loss) of equity investees	42	-13	-21
Other Comprehensive Income Loss Before Tax	1,164	-127	-346
Other Comprehensive Income Loss Tax	-436	44	125
Other Comprehensive Income Loss Net of Tax	728	-83	-221
Pretax Amount [Member]	'	'	'
Pensions and other postretirement benefits	975	-242	-439
Reclassification adjustments for costs included in net income	147	128	114
Subtotal	1,122	-114	-325
Other comprehensive income (loss) of equity investees	42	-13	-21
Other Comprehensive Income Loss Before Tax	1,164	-127	-346
Tax Expense Benefit [Member]	'	'	'
Pensions and other postretirement benefits	-375	93	169
Reclassification adjustments for costs included in net income	-58	-50	-46
Subtotal	-433	43	123
Other comprehensive income (loss) of equity investees	-3	1	2
Other Comprehensive Income Loss Tax	-436	44	125
Net Of Tax Amount [Member]	'	'	'
Pensions and other postretirement benefits	600	-149	-270
Reclassification adjustments for costs included in net income	89	78	68
Subtotal	689	-71	-202
Other comprehensive income (loss) of equity investees	39	-12	-19
Other Comprehensive Income Loss Net of Tax	$728	($83)	($221)

Stock_Repurchase_Program_Detai

Stock Repurchase Program (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Aug. 01, 2013
Stock Repurchase Program [Abstract]	'	'	'	'
New stock repurchase program	'	'	'	50
Stock repurchased and retired during period, shares	8.3	18.8	30.2	'
Stock repurchased and retired during period, cost	$627	$1,288	$2,051	'
Stock repurchased and retired since beginning of stock repurchase program in 2006, shares	136.7	'	'	'
Stock repurchased and retired since beginning of stock repurchase program in 2006, cost	$8,100	'	'	'

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$513	$482	$465	$450	$413	$402	$524	$410	$1,910	$1,749	$1,916
Basic earnings per share	$1.66	$1.55	$1.47	$1.43	$1.31	$1.26	$1.62	$1.24	$6.10	$5.42	$5.52
Diluted earnings per share	$1.64	$1.53	$1.46	$1.41	$1.30	$1.24	$1.60	$1.23	$6.04	$5.37	$5.45
Options having exercise prices exceeding average market price	'	'	'	'	'	'	'	'	0	2	0
Earnings Per Share Basic [Member]	'	'	'	'	'	'	'	'	'	'	'
Net income	'	'	'	'	'	'	'	'	1,910	1,749	1,916
Dividend equivalent payments	'	'	'	'	'	'	'	'	-7	-9	-9
Income available to common stockholders, basic	'	'	'	'	'	'	'	'	1,903	1,740	1,907
Weighted-average shares outstanding	'	'	'	'	'	'	'	'	311.9	320.9	345.5
E P S Diluted [Member]	'	'	'	'	'	'	'	'	'	'	'
Net income	'	'	'	'	'	'	'	'	1,910	1,749	1,916
Dividend equivalent payments	'	'	'	'	'	'	'	'	-4	-4	-2
Income available to common stockholders, diluted	'	'	'	'	'	'	'	'	$1,906	$1,745	$1,914
Weighted-average shares outstanding	'	'	'	'	'	'	'	'	311.9	320.9	345.5
Dilutive effect of outstanding options and share-settled awards	'	'	'	'	'	'	'	'	3.6	4.3	5.8
Adjusted weighted-average shares outstanding	'	'	'	'	'	'	'	'	315.5	325.2	351.3

Commitments_And_Contingencies_

Commitments And Contingencies (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies [Abstract]	'	'	'
Arbitration decision expense	$43	'	'
Other arbitration expense	15	'	'
Environmental liability	'	58	42
Current environmental liability	'	15	12
Known cleanup and remediation locations and projects	'	142	146
Number of sites - representative sample	'	10	'
Liability associated with those sites	'	30	'
Environmental locations representative sample liability payout period, in years	'	5	'
Responsible locations with another party	'	12	'
Self-insured injury/damage to third party - up to	'	50	'
Self-insured injury/damage to third parties - and above, per occurrence	'	1,025	'
Self-insured NS owned property - up to	'	25	'
Self-insured NS owned property - and above, per occurrence	'	175	'
Purchase commitments, long-term service contracts	'	353	'
Liable Guarantors Of Indebtedness	'	$7	'

Quarterly_Financial_Data_Detai

Quarterly Financial Data (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Data (Unaudited) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Railway operating revenues	$2,881	$2,824	$2,802	$2,738	$2,684	$2,693	$2,874	$2,789	$11,245	$11,040	$11,172
Income from railway operations	881	849	836	691	714	731	934	745	3,257	3,124	3,213
Net income	$513	$482	$465	$450	$413	$402	$524	$410	$1,910	$1,749	$1,916
Basic	$1.66	$1.55	$1.47	$1.43	$1.31	$1.26	$1.62	$1.24	$6.10	$5.42	$5.52
Diluted	$1.64	$1.53	$1.46	$1.41	$1.30	$1.24	$1.60	$1.23	$6.04	$5.37	$5.45

Schedule_II_Valuation_And_Qual1

Schedule II - Valuation And Qualifying Accounts (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Valuation Allowance (Included Net In Deferred Tax Liability) For Deferred Tax Assets [Member]	'		'		'
Valuation and Qualifying Accounts Disclosure [Line Items]	'		'		'
Beginning Balance	$19		$19		$21
Expenses	13		0		0
Other Accounts	0		0		0
Deductions	0		0		2
Ending Balance	32		19		19
Casualty And Other Claims Included In Other Liabilities [Member]	'		'		'
Valuation and Qualifying Accounts Disclosure [Line Items]	'		'		'
Beginning Balance	258		275		261
Expenses	33	[1]	76	[1]	102	[1]
Other Accounts	0		0		1
Deductions	77	[2]	93	[2]	89	[2]
Ending Balance	214		258		275
Current Portion Of Casualty And Other Claims Included In Accounts Payable [Member]	'		'		'
Valuation and Qualifying Accounts Disclosure [Line Items]	'		'		'
Beginning Balance	183		201		254
Expenses	15		18		16
Other Accounts	101	[3]	157	[3]	133	[3]
Deductions	133	[4]	193	[4]	202	[4]
Ending Balance	$166		$183		$201

[1]	Includes adjustments for changes in estimates for prior years' claims.
[2]	Payments and reclassifications to/from accounts payable.
[3]	Includes revenue refunds and overcharges provided through deductions from operating revenues and transfers from other accounts.
[4]	Payments and reclassifications to/from other liabilities.