Caterpillar (CAT) 10-K 18 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Jun. 30, 2013
Document And Entity Information1	'	'
Entity Registrant Name	'CATERPILLAR INC	'
Entity Central Index Key	'0000018230	'
Document Type	'10-K	'
Document Period End Date	31-Dec-13	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Well-known Seasoned Issuer	'Yes	'
Entity Voluntary Filers	'No	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Public Float	'	$53.30
Entity Common Stock, Shares Outstanding	637,822,342	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'FY	'

Consolidated_Results_of_Operat

Consolidated Results of Operations (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Sales and revenues:	'		'		'
Sales of Machinery and Power Systems	$52,694		$63,068		$57,392
Revenues of Financial Products	2,962		2,807		2,746
Total sales and revenues	55,656		65,875		60,138
Operating costs:	'		'		'
Cost of goods sold	40,727		47,055		43,578
Selling, general and administrative expenses	5,547		5,919		5,203
Research and development expenses	2,046		2,466		2,297
Interest expense of Financial Products	727		797		826
Goodwill impairment charge	0		580		0
Other operating (income) expenses	981		485		1,081
Total operating costs	50,028		57,302		52,985
Operating profit	5,628		8,573		7,153
Interest expense excluding Financial Products	465		467		396
Other income (expense)	-35		130		-32
Consolidated profit before taxes	5,128		8,236		6,725
Provision (benefit) for income taxes	1,319		2,528		1,720
Profit of consolidated companies	3,809		5,708		5,005
Equity in profit (loss) of unconsolidated affiliated companies	-6		14		-24
Profit of consolidated and affiliated companies	3,803		5,722		4,981
Less: Profit (loss) attributable to noncontrolling interests	14		41		53
Profit	$3,789	[1]	$5,681	[1]	$4,928	[1]
Profit per common share (in dollars per share)	$5.87		$8.71		$7.64
Profit per common share - diluted (in dollars per share)	$5.75	[2]	$8.48	[2]	$7.40	[2]
Weighted-average common shares outstanding (millions)	'		'		'
Basic (in shares)	645.2		652.6		645
Diluted (in shares)	658.6	[2]	669.6	[2]	666.1	[2]
Cash dividends declared per common share (in dollars per share)	$2.32		$2.02		$1.82
[1]	1 Profit attributable to common stockholders.
[2]	2 Diluted by assumed exercise of stock-based compensation awards, using the treasury stock method.

Consolidated_Comprehensive_Inc

Consolidated Comprehensive Income (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Profit of consolidated and affiliated companies	$3,803	$5,722	$4,981
Other comprehensive income (loss), Net of Tax:	'	'	'
Foreign currency translation, net of tax (provision)/benefit of: 2013 - $57; 2012 - $9; 2011 - $3	-277	60	-312
Pension and other postretirement benefits:	'	'	'
Current year actuarial gain (loss), net of tax (provision)/benefit of: 2013 - ($1,232); 2012 - $372; 2011 - $1,276	2,277	-731	-2,364
Amortization of actuarial (gain) loss, net of tax (provision)/benefit of: 2013 - ($265); 2012 - ($243); 2011 - ($221)	516	458	412
Current year prior service credit (cost), net of tax (provision)/benefit of: 2013 - ($2); 2012 - ($12); 2011 - ($51)	3	23	95
Amortization of prior service (credit) cost, net of tax (provision)/benefit of: 2013 - $19; 2012 - $17; 2011 - $11	-35	-31	-21
Amortization of transition (asset) obligation, net of tax (provision)/benefit of: 2013 - ($1); 2012 - ($1); 2011 - ($1)	1	1	1
Derivative financial instruments:	'	'	'
Gains (losses) deferred, net of tax (provision)/benefit of: 2013 - $2; 2012 - $29; 2011 - $12	-4	-48	-21
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: 2013 - ($25); 2012 - ($10); 2011 - $21	41	16	-34
Available-for-sale securities:	'	'	'
Gains (losses) deferred, net of tax (provision)/benefit of: 2013 - ($15); 2012 - ($13); 2011 - $2	29	26	-5
(Gains) losses reclassified to earnings, net of tax (provision)/benefit of: 2013 - $6; 2012 - $1; 2011 - ($1)	-13	-3	1
Total other comprehensive income (loss), net of tax	2,538	-229	-2,248
Comprehensive income	6,341	5,493	2,733
Less: comprehensive income attributable to the noncontrolling interests	-17	-24	-82
Comprehensive income attributable to stockholders	$6,324	$5,469	$2,651

Consolidated_Comprehensive_Inc1

Consolidated Comprehensive Income (Parenthetical) (Parentheticals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]	'	'	'
Foreign currency translation, tax (provision)/benefit	$57	$9	$3
Current year actuarial gain (loss), tax (provision)/benefit	-1,232	372	1,276
Amortization of actuarial (gain) loss, tax (provision)/benefit	-265	-243	-221
Current year prior service credit (cost), tax (provision)/benefit	-2	-12	-51
Amortization of prior service (credit) cost, tax (provision)/benefit	19	17	11
Amortization of transition (asset) obligation, tax (provision)/benefit	-1	-1	-1
Derivative financial instruments, Gains (losses) deferred, tax (provision)/benefit	2	29	12
Derivative financial instruments, Gains (losses) reclassified to earnings, tax (provision)/benefit	-25	-10	21
Available-for-sale securities, Gains (losses) deferred, tax (provision)/benefit	-15	-13	2
Available-for-sale securities, (Gains) losses reclassified to earnings, tax (provision)/benefit	$6	$1	($1)

Consolidated_Financial_Positio

Consolidated Financial Position (USD $)	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
In Millions, unless otherwise specified
Current assets:	'	'		'
Cash and short-term investments	$6,081	$5,490		$3,057
Receivables - trade and other	8,413	9,706		10,057
Receivables - finance	8,763	8,860		7,668
Deferred and refundable income taxes	1,553	1,547		1,580
Prepaid expenses and other current assets	900	988		994
Inventories	12,625	15,547		14,544
Total current assets	38,335	42,138		37,900
Property, plant and equipment - net	17,075	16,461		14,395
Long-term receivables - trade and other	1,397	1,316		1,130
Long-term receivables - finance	14,926	14,029		11,948
Investments in unconsolidated affiliated companies	272	272		133
Noncurrent deferred and refundable income taxes	594	2,011		2,157
Intangible assets	3,596	4,016		4,368
Goodwill	6,956	6,942		7,080
Other assets	1,745	1,785		2,107
Total assets	84,896	88,970		81,218
Short-term borrowings:	'	'		'
Machinery and Power Systems	16	636		93
Financial Products	3,663	4,651		3,895
Accounts payable	6,560	6,753		8,161
Accrued expenses	3,493	3,667		3,386
Accrued wages, salaries and employee benefits	1,622	1,911		2,410
Customer advances	2,360	2,638		2,487
Dividends payable	382	0		298
Other current liabilities	1,849	2,055		1,967
Long-term debt due within one year:	'	'		'
Machinery and Power Systems	760	1,113		558
Financial Products	6,592	5,991		5,102
Total current liabilities	27,297	29,415		28,357
Long-term debt due after one year:	'	'		'
Machinery and Power Systems	7,999	8,666		8,415
Financial Products	18,720	19,086		16,529
Liability for postemployment benefits	6,973	11,085		10,956
Other liabilities	3,029	3,136		3,559
Total liabilities	64,018	71,388		67,816
Commitments and contingencies (Notes 21 and 22)	'	'		'
Redeemable noncontrolling interest (Note 25)	0	0		473
Stockholders' equity	'	'		'
Common stock of $1.00 par: Authorized shares: 2,000,000,000 Issued shares: (2013, 2012 and 2011 - 814,894,624) at paid-in amount	4,709	4,481		4,273
Treasury stock: (2013 – 177,072,282; 2012 – 159,846,131 shares; and 2011 – 167,361,280 shares) at cost	-11,854	-10,074		-10,281
Profit employed in the business	31,854	29,558		25,219
Accumulated other comprehensive income (loss)	-3,898	-6,433	[1]	-6,328
Noncontrolling interests	67	50		46
Total stockholders' equity	20,878	17,582		12,929
Total liabilities, redeemable noncontrolling interest and stockholders' equity	$84,896	$88,970		$81,218
[1]	In conjunction with the Cat Japan share redemption, to reflect the increase in our ownership interest in Cat Japan from 67 percent to 100 percent, $107 million was reclassified to Accumulated other comprehensive income (loss) from other components of stockholders' equity and was not included in Comprehensive income during the second quarter of 2012. The amount was comprised of foreign currency translation of $167 million, pension and other postretirement benefits of $(61) million and available-for-sale securities of $1 million

Consolidated_Financial_Positio1

Consolidated Financial Position (Parenthetical) (Parentheticals) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]	'	'	'
Common Stock, par value (in dollars per share)	$1	$1	$1
Common Stock, Authorized shares	2,000,000,000	2,000,000,000	2,000,000,000
Common Stock, Issued shares	814,894,624	814,894,624	814,894,624
Treasury Stock, shares	177,072,282	159,846,131	167,361,280

Changes_in_Consolidated_Stockh

Changes in Consolidated Stockholders' Equity (USD $)		Total	Common Stock	Treasury stock	Profit employed in the business	Accumulated other comprehensive income (loss)	Noncontrolling interests
In Millions, unless otherwise specified
Balance at Dec. 31, 2010		$10,864	$3,888	($10,397)	$21,384	($4,051)	$40
Increase (Decrease) in Stockholders' Equity		'	'	'	'	'	'
Profit of consolidated and affiliated companies		4,981	0	0	4,928	0	53
Foreign currency translation, net of tax		-312	0	0	0	-345	33
Pension and other postretirement benefits, net of tax		-1,877	0	0	0	-1,873	-4
Derivative financial instruments, net of tax		-55	0	0	0	-55	0
Available-for-sale securities, net of tax		-4	0	0	0	-4	0
Change in ownership from noncontrolling interests		-8	-1	0	0	0	-7
Dividends declared		-1,176	0	0	-1,176	0	0
Distribution to noncontrolling interests		-3	0	0	0	0	-3
Common shares issued from treasury stock for stock-based compensation: 6,258,692, 7,515,149 and 8,710,630 for the years ended December 31, 2013, 2012 and 2011, respectively		123	7	116	0	0	0
Stock-based compensation expense		193	193	0	0	0	0
Net excess tax benefits from stock-based compensation		186	186	0	0	0	0
Cat Japan share redemption	[1]	17	0	0	83	0	-66
Balance at Dec. 31, 2011		12,929	4,273	-10,281	25,219	-6,328	46
Increase (Decrease) in Stockholders' Equity		'	'	'	'	'	'
Profit of consolidated and affiliated companies		5,722	0	0	5,681	0	41
Foreign currency translation, net of tax		60	0	0	0	83	-23
Pension and other postretirement benefits, net of tax		-280	0	0	0	-285	5
Derivative financial instruments, net of tax		-32	0	0	0	-32	0
Available-for-sale securities, net of tax		23	0	0	0	22	1
Change in ownership from noncontrolling interests		-4	0	0	0	0	-4
Dividends declared		-1,319	0	0	-1,319	0	0
Distribution to noncontrolling interests		-6	0	0	0	0	-6
Common shares issued from treasury stock for stock-based compensation: 6,258,692, 7,515,149 and 8,710,630 for the years ended December 31, 2013, 2012 and 2011, respectively		52	-155	207	0	0	0
Stock-based compensation expense		245	245	0	0	0	0
Net excess tax benefits from stock-based compensation		192	192	0	0	0	0
Cat Japan share redemption	[1]	0	-74	0	-23	107	-10
Balance at Dec. 31, 2012		17,582	4,481	-10,074	29,558	-6,433	50
Increase (Decrease) in Stockholders' Equity		'	'	'	'	'	'
Profit of consolidated and affiliated companies		3,803	0	0	3,789	0	14
Foreign currency translation, net of tax		-277	0	0	0	-280	3
Pension and other postretirement benefits, net of tax		2,762	0	0	0	2,762	0
Derivative financial instruments, net of tax		37	0	0	0	37	0
Available-for-sale securities, net of tax		16	0	0	0	16	0
Change in ownership from noncontrolling interests		7	-6	0	0	0	13
Dividends declared		-1,493	0	0	-1,493	0	0
Distribution to noncontrolling interests		-13	0	0	0	0	-13
Common shares issued from treasury stock for stock-based compensation: 6,258,692, 7,515,149 and 8,710,630 for the years ended December 31, 2013, 2012 and 2011, respectively		128	-92	220	0	0	0
Stock-based compensation expense		231	231	0	0	0	0
Net excess tax benefits from stock-based compensation		95	95	0	0	0	0
Common shares repurchased: 23,484,843 shares for year ended December 31, 2013	[2]	-2,000	0	-2,000	0	0	0
Balance at Dec. 31, 2013		$20,878	$4,709	($11,854)	$31,854	($3,898)	$67
[1]	1 See Note 25 regarding the Cat Japan share redemption.
[2]	2 See Note 16 regarding shares repurchased.

Changes_in_Consolidated_Stockh1

Changes in Consolidated Stockholders' Equity (Parenthetical) (Parentheticals)	1 Months Ended	3 Months Ended		12 Months Ended
	Jan. 31, 2014	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]	'	'	'	'	'	'
Common shares issued from treasury stock for stock-based compensation (in shares)	'	'	'	6,258,692	7,515,149	8,710,630
Common shares repurchased (in shares)	17,719,132	11,942,737	11,542,106	23,484,843	0	0

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flow	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	USD ($)	USD ($)	USD ($)
Cash flow from operating activities:	'	'	'
Profit of consolidated and affiliated companies	$3,803	$5,722	$4,981
Adjustments for non-cash items:	'	'	'
Depreciation and amortization	3,087	2,813	2,527
Net gain from sale of businesses and investments	-68	-630	-128
Goodwill impairment charge	0	580	0
Other	550	439	585
Changes in assets and liabilities, net of acquisitions and divestitures:	'	'	'
Receivables - trade and other	835	-15	-1,409
Inventories	2,658	-1,149	-2,927
Accounts payable	134	-1,868	1,555
Accrued expenses	-108	126	255
Accrued wages, salaries and employee benefits	-279	-490	619
Customer advances	-301	83	237
Other assets - net	-49	252	-91
Other liabilities - net	-71	-679	753
Net cash provided by (used for) operating activities	10,191	5,184	6,957
Cash flow from investing activities:	'	'	'
Capital expenditures - excluding equipment leased to others	-2,522	-3,350	-2,515
Expenditures for equipment leased to others	-1,924	-1,726	-1,409
Proceeds from disposals of leased assets and property, plant and equipment	844	1,117	1,354
Additions to finance receivables	-11,422	-12,010	-10,001
Collections of finance receivables	9,567	8,995	8,874
Proceeds from sale of finance receivables	220	132	207
Investments and acquisitions (net of cash acquired)	-195	-618	-8,184
Proceeds from sale of businesses and investments (net of cash sold)	365	1,199	376
Proceeds from sale of available-for-sale securities	449	306	247
Investments in available-for-sale securities	-402	-402	-336
Other - net	-26	167	-40
Net cash provided by (used for) investing activities	-5,046	-6,190	-11,427
Cash flow from financing activities:	'	'	'
Dividends paid	-1,111	-1,617	-1,159
Distribution to noncontrolling interests	-13	-6	-3
Common stock issued, including treasury shares reissued	128	52	123
Treasury shares purchased	-2,000	0	0
Excess tax benefit from stock-based compensation	96	192	189
Acquisitions of redeemable noncontrolling interests	0	-444	0
Acquisitions of noncontrolling interests	0	-5	-8
Proceeds from debt issued (original maturities greater than three months):	'	'	'
Machinery and Power Systems	195	2,209	4,587
Financial Products	9,133	13,806	10,873
Payments on debt (original maturities greater than three months):	'	'	'
Machinery and Power Systems	-1,769	-1,107	-2,269
Financial Products	-9,101	-9,940	-8,277
Short-term borrowings - net (original maturities three months or less)	-69	466	-37
Net cash provided by (used for) financing activities	-4,511	3,606	4,019
Effect of exchange rate changes on cash	-43	-167	-84
Increase (decrease) in cash and short-term investments	591	2,433	-535
Cash and short-term investments at beginning of period	5,490	3,057	3,592
Cash and short-term investments at end of period	6,081	5,490	3,057
Non-cash activities:	'	'	'
Debt exchange original debentures amount	1,325	'	'
Debt exchange new debentures amount	1,722	'	'
Debt exchange new debentures interest rate (as a percent)	3.80%	'	'
Debt exchange new debentures due date (year)	'2042	'	'
Debt exchange cash paid	$179	'	'

Operations_and_summary_of_sign

Operations and summary of significant accounting policies	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Operations and summary of significant accounting policies	'
	Operations and summary of significant accounting policies
	A.	Nature of operations
	Information in our financial statements and related commentary are presented in the following categories:
	Machinery and Power Systems – Represents the aggregate total of Construction Industries, Resource Industries, Power Systems, and the All Other segment and related corporate items and eliminations.
	Financial Products – Primarily includes the company’s Financial Products Segment.  This category includes Caterpillar Financial Services Corporation (Cat Financial), Caterpillar Financial Insurance Services (Insurance Services) and their respective subsidiaries.
	Our products are sold primarily under the brands “Caterpillar,” “CAT,” design versions of “CAT” and “Caterpillar,” “Electro-Motive,” “FG Wilson,” “MaK,” “MWM,” “Perkins,” “Progress Rail,” “SEM” and “Solar Turbines”.
	We conduct operations in our Machinery and Power Systems lines of business under highly competitive conditions, including intense price competition. We place great emphasis on the high quality and performance of our products and our dealers’ service support. Although no one competitor is believed to produce all of the same types of machines and engines that we do, there are numerous companies, large and small, which compete with us in the sale of each of our products.
	Our machines are distributed principally through a worldwide organization of dealers (dealer network), 48 located in the United States and 130 located outside the United States, serving 182 countries and operating 3,454 places of business, including 1,202 dealer rental outlets.  Reciprocating engines are sold principally through the dealer network and to other manufacturers for use in products. Some of the reciprocating engines manufactured by our subsidiary Perkins Engines Company Limited, are also sold through a worldwide network of 100 distributors located in 180 countries. Most of the electric power generation systems manufactured by our subsidiary Caterpillar Northern Ireland Limited, formerly known as F.G. Wilson Engineering Limited, are sold through its worldwide network of 264 distributors located in 145 countries.  Some of the large, medium speed reciprocating engines are also sold under the MaK brand through a worldwide network of 19 distributors located in 130 countries.  Our dealers do not deal exclusively with our products; however, in most cases sales and servicing of our products are the dealers’ principal business. Turbines, locomotives and certain global mining products are sold directly to end customers through sales forces employed by the company. At times, these employees are assisted by independent sales representatives.
	The Financial Products line of business also conducts operations under highly competitive conditions. Financing for users of Caterpillar products is available through a variety of competitive sources, principally commercial banks and finance and leasing companies. We emphasize prompt and responsive service to meet customer requirements and offer various financing plans designed to increase the opportunity for sales of our products and generate financing income for our company. A significant portion of Financial Products activity is conducted in North America, with additional offices in Asia/Pacific, Europe and Latin America.
	B.	Basis of presentation
	The consolidated financial statements include the accounts of Caterpillar Inc. and its subsidiaries where we have a controlling financial interest.
	We consolidate all variable interest entities (VIEs) where Caterpillar Inc. is the primary beneficiary.  For VIEs, we assess whether we are the primary beneficiary as prescribed by the accounting guidance on the consolidation of VIEs.  The primary beneficiary of a VIE is the party that has both the power to direct the activities that most significantly impact the entity’s economic performance, and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE.
	Investments in companies that are owned 20 percent to 50 percent or are less than 20 percent owned and for which we have significant influence are accounted for by the equity method.  See Note 9 for further discussion.
	Certain amounts for prior years have been reclassified to conform with the current-year financial statement presentation.
	We have revised previously reported cash flows from operating and financing activities on Statement 5 for the years ended December 31, 2012 and 2011 to correct for the impact of interest payments on certain Cat Financial bank borrowings. Cash provided by operating activities decreased from the amounts previously reported by $57 million and $53 million for the years ended December 31, 2012 and 2011, respectively. Cash provided by financing activities increased by the same amounts for the respective periods. Management has concluded that the impact was not material to any annual period.
	We have also revised previously reported balances on Statement 3 as of December 31, 2012 and 2011 to correct for customer advances invoiced but not yet paid. Receivables - trade and other decreased from the amounts previously reported by $386 million and $228 million as of December 31, 2012 and 2011, respectively. Customer advances decreased from the amounts previously reported by $340 million and $204 million as of December 31, 2012 and 2011, respectively. Other (long-term) liabilities also decreased from the amounts previously reported by $46 million and $24 million as of December 31, 2012 and 2011, respectively. Although the revision did not impact Net cash provided by (used for) operating activities on Statement 5, we have revised the impacted operating cash flow line items for the years ended December 31, 2012 and 2011. Management has concluded that the impact was not material to any period presented.
	Shipping and handling costs are included in Cost of goods sold in Statement 1.  Other operating (income) expenses primarily include Cat Financial’s depreciation of equipment leased to others, Insurance Services’ underwriting expenses, gains (losses) on disposal of long-lived assets and business divestitures, long-lived asset impairment charges, legal settlements, employee separation charges and benefit plan curtailment, settlement and contractual termination benefits.
	Prepaid expenses and other current assets in Statement 3 include prepaid rent, prepaid insurance, assets held for sale, core to be returned for remanufacturing, restricted cash and other short-term investments, and other prepaid items.
	C.	Sales and revenue recognition
	Sales of Machinery and Power Systems are recognized and earned when all the following criteria are satisfied:  (a) persuasive evidence of a sales arrangement exists; (b) price is fixed and determinable; (c) collectability is reasonably assured; and (d) delivery has occurred.  Persuasive evidence of an arrangement and a fixed or determinable price exist once we receive an order or contract from a customer or independently owned and operated dealer.  We assess collectability at the time of the sale and if collectability is not reasonably assured, the sale is deferred and not recognized until collectability is probable or payment is received.  Typically, where product is produced and sold in the same country, title and risk of ownership transfer when the product is shipped.  Products that are exported from a country for sale typically pass title and risk of ownership at the border of the destination country.
	Sales of certain turbine machinery units, draglines, large shovels and long wall roof supports are recognized under accounting for construction-type contracts, primarily using the percentage-of-completion method.  Revenue is recognized based upon progress towards completion, which is estimated and continually updated over the course of construction.  We provide for any loss that we expect to incur on these contracts when that loss is probable.
	Our remanufacturing operations are primarily focused on the remanufacture of Cat engines and components and rail related products.  In this business, used engines and related components (core) are inspected, cleaned and remanufactured.  In connection with the sale of most of our remanufactured product, we collect a deposit from the dealer that is repaid if the dealer returns an acceptable core within a specified time period.  Caterpillar owns and has title to the cores when they are returned from dealers.  The rebuilt engine or component (the core plus any new content) is then sold as a remanufactured product to dealers and customers.  Revenue is recognized pursuant to the same criteria as machinery and power systems sales noted above (title to the entire remanufactured product passes to the dealer upon sale).  At the time of sale, the deposit is recognized in Other current liabilities in Statement 3.  In addition, the core to be returned is recognized as an asset in Prepaid expenses and other current assets in Statement 3 at the estimated replacement cost (based on historical experience with useable cores).  Upon receipt of an acceptable core, we repay the deposit and relieve the liability.  The returned core is then included in inventory.  In the event that the deposit is forfeited (i.e. upon failure by the dealer to return an acceptable core in the specified time period), we recognize the core deposit and the cost of the core in Sales and Cost of goods sold, respectively.
	No right of return exists on sales of equipment.  Replacement part returns are estimable and accrued at the time a sale is recognized.
	We provide discounts to dealers through merchandising programs.  We have numerous programs that are designed to promote the sale of our products.  The most common dealer programs provide a discount when the dealer sells a product to a targeted end user.  The cost of these discounts is estimated based on historical experience and known changes in merchandising programs and is reported as a reduction to sales when the product sale is recognized.
	Our standard dealer invoice terms are established by marketing region. Our invoice terms for end-user customer sales are established by the responsible business unit. When a sale is made to a dealer, the dealer is responsible for payment even if the product is not sold to an end customer. Dealers and customers must make payment within the established invoice terms to avoid potential interest costs. Interest at or above prevailing market rates may be charged on any past due balance, and generally our practice is to not forgive this interest. In 2013, terms were extended to not more than one year for $706 million of receivables, which represent approximately 1 percent of consolidated sales. In 2012 and 2011, terms were extended to not more than one year for $354 million and $341 million of receivables, respectively, which represent less than 1 percent of consolidated sales.
	We establish a bad debt allowance for Machinery and Power Systems receivables when it becomes probable that the receivable will not be collected.  Our allowance for bad debts is not significant.
	Revenues of Financial Products primarily represent the following Cat Financial revenues:
	•	Retail finance revenue on finance leases and installment sale contracts is recognized over the term of the contract at a constant rate of return on the scheduled outstanding principal balance.  Revenue on retail notes is recognized based on the daily balance of retail receivables outstanding and the applicable effective interest rate.
	•	Operating lease revenue is recorded on a straight-line basis in the period earned over the life of the contract.
	•	Cat Financial provides wholesale inventory financing to dealers. Wholesale finance revenue on installment sale contracts and finance leases related to financing dealer inventory and rental fleets is recognized over the term of the contract at a constant rate of return on the scheduled outstanding principal balance.  Revenue on wholesale notes is recognized based on the daily balance of wholesale receivables outstanding and the applicable effective interest rate.
	•	Loan origination and commitment fees are deferred and amortized to revenue using the interest method over the life of the finance receivables.
	Recognition of income is suspended and the loan or finance lease is placed on non-accrual status when management determines that collection of future income is not probable (generally after 120 days past due except in locations where local regulatory requirements dictate a different method, or instances in which relevant information is known that warrants placing the loan or finance lease on non-accrual status). Accrual is resumed, and previously suspended income is recognized, when the receivable becomes contractually current and/or collection doubts are removed. See Note 6 for more information.
	Sales and revenues are presented net of sales and other related taxes.
	D.	Inventories
	Inventories are stated at the lower of cost or market. Cost is principally determined using the last-in, first-out (LIFO) method. The value of inventories on the LIFO basis represented about 60 percent of total inventories at December 31, 2013 and 2012, and about 65 percent at December 31, 2011.
	If the FIFO (first-in, first-out) method had been in use, inventories would have been $2,504 million, $2,750 million and $2,422 million higher than reported at December 31, 2013, 2012 and 2011, respectively.
	E.	Depreciation and amortization
	Depreciation of plant and equipment is computed principally using accelerated methods. Depreciation on equipment leased to others, primarily for Financial Products, is computed using the straight-line method over the term of the lease. The depreciable basis is the original cost of the equipment less the estimated residual value of the equipment at the end of the lease term. In 2013, 2012 and 2011, Cat Financial depreciation on equipment leased to others was $768 million, $688 million and $690 million, respectively, and was included in Other operating (income) expenses in Statement 1. In 2013, 2012 and 2011, consolidated depreciation expense was $2,710 million, $2,421 million and $2,240 million, respectively. Amortization of purchased finite-lived intangibles is computed principally using the straight-line method, generally not to exceed a period of 20 years.
	F.	Foreign currency translation
	The functional currency for most of our Machinery and Power Systems consolidated companies is the U.S. dollar. The functional currency for most of our Financial Products and affiliates accounted for under the equity method is the respective local currency.  Gains and losses resulting from the remeasurement of foreign currency amounts to the functional currency are included in Other income (expense) in Statement 1. Gains and losses resulting from translating assets and liabilities from the functional currency to U.S. dollars are included in Accumulated other comprehensive income (loss) in Statement 3.
	G.	Derivative financial instruments
	Our earnings and cash flow are subject to fluctuations due to changes in foreign currency exchange rates, interest rates and commodity prices.  Our Risk Management Policy (policy) allows for the use of derivative financial instruments to prudently manage foreign currency exchange rate, interest rate and commodity price exposures. Our policy specifies that derivatives are not to be used for speculative purposes. Derivatives that we use are primarily foreign currency forward, option, and cross currency contracts, interest rate swaps, and commodity forward and option contracts. All derivatives are recorded at fair value.  See Note 3 for more information.
	H.	Income taxes
	The provision for income taxes is determined using the asset and liability approach taking into account guidance related to uncertain tax positions.  Tax laws require items to be included in tax filings at different times than the items are reflected in the financial statements.  A current liability is recognized for the estimated taxes payable for the current year.  Deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid.  Deferred taxes are adjusted for enacted changes in tax rates and tax laws.  Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.
	I.	Estimates in financial statements
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect reported amounts. The more significant estimates include: residual values for leased assets, fair values for goodwill impairment tests, impairment of available-for-sale securities, warranty liability, stock-based compensation and reserves for product liability and insurance losses, postretirement benefits, post-sale discounts, credit losses and income taxes.
	J.	New accounting guidance
	Presentation of comprehensive income – In June 2011, the Financial Accounting Standards Board (FASB) issued accounting guidance on the presentation of comprehensive income.  The guidance provides two options for presenting net income and other comprehensive income.  The total of comprehensive income, the components of net income, and the components of other comprehensive income may be presented in either a single continuous statement of comprehensive income or in two separate but consecutive statements. We elected to present two separate statements. This guidance was effective January 1, 2012.
	Goodwill impairment testing – In September 2011, the FASB issued accounting guidance on the testing of goodwill for impairment. The guidance allows entities testing goodwill for impairment the option of performing a qualitative assessment to determine the likelihood of goodwill impairment and whether it is necessary to perform the two-step impairment test currently required. This guidance was effective for annual and interim goodwill impairment tests performed for fiscal years beginning after December 15, 2011. Early adoption was permitted. We elected to early adopt this guidance for the year ended December 31, 2011 and the guidance did not have a material impact on our financial statements.
	Disclosures about offsetting assets and liabilities – In December 2011, the FASB issued accounting guidance on disclosures about offsetting assets and liabilities. The guidance requires entities to disclose both gross and net information about instruments and transactions that are offset in the statement of financial position, as well as instruments and transactions that are subject to an enforceable master netting arrangement or similar agreement. In January 2013, the FASB issued guidance clarifying the scope of the disclosures to apply only to derivatives, including bifurcated embedded derivatives, repurchase and reverse repurchase agreements, and securities lending and securities borrowing transactions. This guidance was effective January 1, 2013, with retrospective application required. The guidance did not have a material impact on our financial statements. See Note 3 for additional information.
	Indefinite-lived intangible assets impairment testing – In July 2012, the FASB issued accounting guidance on the testing of indefinite-lived intangible assets for impairment. The guidance allows entities to first perform a qualitative assessment to determine the likelihood of an impairment for an indefinite-lived intangible asset and whether it is necessary to perform the quantitative impairment assessment currently required. This guidance was effective January 1, 2013 and did not have a material impact on our financial statements.
	Reporting of amounts reclassified out of accumulated other comprehensive income – In February 2013, the FASB issued accounting guidance on the reporting of reclassifications out of accumulated other comprehensive income. The guidance requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income if the amount is reclassified to net income in its entirety in the same reporting period. For other amounts not required to be reclassified in their entirety to net income in the same reporting period, a cross reference to other disclosures that provide additional detail about the reclassification amounts is required. This guidance was effective January 1, 2013 and did not have a material impact on our financial statements. See Note 17 for additional information.
	Joint and several liability arrangements – In February 2013, the FASB issued accounting guidance on the recognition, measurement and disclosure of obligations resulting from joint and several liability arrangements. The guidance requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date, as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The entity is also required to disclose the nature and amount of the obligation as well as any other information about those obligations. This guidance is effective January 1, 2014, with retrospective application required. We do not expect the adoption to have a material impact on our financial statements.
	Parent's accounting for the cumulative translation adjustment upon derecognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity – In March 2013, the FASB issued accounting guidance on the parent's accounting for the cumulative translation adjustment (CTA) upon derecognition of certain subsidiaries or groups of assets within a foreign entity or of an investment in a foreign entity. The new standard clarifies existing guidance regarding when the CTA should be released into earnings upon various deconsolidation and consolidation transactions. This guidance is effective January 1, 2014. We do not expect the adoption to have a material impact on our financial statements.
	Presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists – In July 2013, the FASB issued accounting guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance requires an unrecognized tax benefit, or a portion of an unrecognized tax benefit, to be presented as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward in the financial statements if available under the applicable tax jurisdiction. The guidance is effective January 1, 2014. We do not expect the adoption to have a material impact on our financial statements.
	K.	Goodwill
	For acquisitions accounted for as a business combination, goodwill represents the excess of the cost over the fair value of the net assets acquired.  We are required to test goodwill for impairment, at the reporting unit level, annually and when events or circumstances indicate the fair value of a reporting unit may be below its carrying value.  A reporting unit is an operating segment or one level below an operating segment (referred to as a component) to which goodwill is assigned when initially recorded. We assign goodwill to reporting units based on our integration plans and the expected synergies resulting from the acquisition.  Because Caterpillar is a highly integrated company, the businesses we acquire are sometimes combined with or integrated into existing reporting units.  When changes occur in the composition of our operating segments or reporting units, goodwill is reassigned to the affected reporting units based on their relative fair values.
	We test goodwill for impairment annually and whenever events or circumstances make it more likely than not that an impairment may have occurred.  We perform our annual goodwill impairment test as of October 1 and monitor for interim triggering events on an ongoing basis.  Goodwill is reviewed for impairment utilizing a qualitative assessment or a two-step process.  We have an option to make a qualitative assessment of a reporting unit’s goodwill for impairment.  If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary.  For reporting units where we perform the two-step process, the first step requires us to compare the fair value of each reporting unit, which we primarily determine using an income approach based on the present value of discounted cash flows, to the respective carrying value, which includes goodwill.  If the fair value of the reporting unit exceeds its carrying value, the goodwill is not considered impaired.  If the carrying value is higher than the fair value, there is an indication that an impairment may exist and the second step is required.  In step two, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair values assigned to its assets and liabilities.  If the implied fair value of goodwill is less than the carrying value of the reporting unit’s goodwill, the difference is recognized as an impairment loss.  See Note 10 for further details.
	L.	Assets held for sale
	For those businesses where management has committed to a plan to divest, which is typically demonstrated by approval from the Board of Directors or Group President, each business is valued at the lower of its carrying amount or estimated fair value less cost to sell. If the carrying amount of the business exceeds its estimated fair value, an impairment loss is recognized. The fair values are estimated using accepted valuation techniques such as a discounted cash flow model, valuations performed by third parties, or indicative bids, when available. A number of significant estimates and assumptions are involved in the application of these techniques, including the forecasting of markets and market share, sales volumes and prices, costs and expenses, and multiple other factors. Management considers historical experience and all available information at the time the estimates are made; however, the fair values that are ultimately realized upon the sale of the businesses to be divested may differ from the estimated fair values reflected in the Consolidated Financial Statements.

Stockbased_compensation

Stock-based compensation	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock-based compensation	'
	Stock-based compensation
	Our stock-based compensation plans primarily provide for the granting of stock options, stock-settled stock appreciation rights (SARs) and restricted stock units (RSUs) to Officers and other key employees, as well as non-employee Directors. Stock options permit a holder to buy Caterpillar stock at the stock’s price when the option was granted. SARs permit a holder the right to receive the value in shares of the appreciation in Caterpillar stock that occurred from the date the right was granted up to the date of exercise.  A restricted stock unit (RSU) is an agreement to issue shares of Caterpillar stock at the time of vesting.
	Our long-standing practices and policies specify all stock-based compensation awards are approved by the Compensation Committee (the Committee) of the Board of Directors on the date of grant.  The stock-based award approval process specifies the number of awards granted, the terms of the award and the grant date.  The same terms and conditions are consistently applied to all employee grants, including Officers. The Committee approves all individual Officer grants.  The number of stock-based compensation awards included in an individual’s award is determined based on the methodology approved by the Committee.  In 2007, under the terms of the Caterpillar Inc. 2006 Long-Term Incentive Plan (approved by stockholders in June of 2006), the Compensation Committee approved the exercise price methodology to be the closing price of the Company stock on the date of the grant.
	Common stock issued from Treasury stock under the plans totaled 6,258,692 for 2013, 7,515,149 for 2012 and 8,710,630 for 2011.
	Awards generally vest three years after the date of grant.  At grant, SARs and option awards have a term life of ten years.  Upon separation from service, if the participant is 55 years of age or older with more than five years of service, the participant meets the criteria for a “Long Service Separation”.  If the “Long Service Separation” criteria are met, the vested options/SARs will have a life that is the lesser of ten years from the original grant date or five years from the separation date.
	Our stock-based compensation plans allow for the immediate vesting upon separation for employees who meet the criteria for a “Long Service Separation” and who have fulfilled the requisite service period of six months.  Compensation expense is recognized over the period from the grant date to the end date of the requisite service period for employees who meet the immediate vesting upon retirement requirements.  For those employees who become eligible for immediate vesting upon retirement subsequent to the requisite service period and prior to the completion of the vesting period, compensation expense is recognized over the period from grant date to the date eligibility is achieved.
	Accounting guidance on share-based payments requires companies to estimate the fair value of options/SARs on the date of grant using an option-pricing model.  The fair value of the option/SAR grant was estimated using a lattice-based option-pricing model.  The lattice-based option-pricing model considers a range of assumptions related to volatility, risk-free interest rate and historical employee behavior.  Expected volatility was based on historical and current implied volatilities from traded options on our stock. The risk-free rate was based on U.S. Treasury security yields at the time of grant.  The weighted-average dividend yield was based on historical information.  The expected life was determined from the lattice-based model. The lattice-based model incorporated exercise and post vesting forfeiture assumptions based on analysis of historical data. The following table provides the assumptions used in determining the fair value of the stock-based awards for the years ended December 31, 2013, 2012 and 2011, respectively.
		Grant Year
		2013			2012			2011
	Weighted-average dividend yield	2.1	%		2.2	%		2.2	%
	Weighted-average volatility	30.6	%		35	%		32.7	%
	Range of volatilities	23.4-40.6%			33.3-40.4%			20.9-45.4%
	Range of risk-free interest rates	0.16-1.88%			0.17-2.00%			0.25-3.51%
	Weighted-average expected lives	8 years			7 years			8 years
	The fair value of the RSU grant was determined by reducing the stock price on the day of grant by the present value of the estimated dividends to be paid during the vesting period.  The estimated dividends are based on Caterpillar’s weighted-average dividend yield.
	The amount of stock-based compensation expense capitalized for the years ended December 31, 2013, 2012 and 2011 did not have a significant impact on our financial statements.
	At December 31, 2013, there was $193 million of total unrecognized compensation cost from stock-based compensation arrangements granted under the plans, which is related to non-vested stock-based awards.  The compensation expense is expected to be recognized over a weighted-average period of approximately 1.8 years.
	Please refer to Tables I and II below for additional information on our stock-based awards.
	TABLE I — Financial Information Related to Stock-based Compensation
		2013							2012					2011
		Shares			Weighted-				Shares			Weighted-		Shares		Weighted-
					Average							Average				Average
					Exercise							Exercise				Exercise
					Price							Price				Price
	Stock options/SARs activity:
	Outstanding at beginning of year	45,827,599			$	59.45			50,372,991			$	53.01	57,882,998		$	48.5
	Granted to officers and key employees 1	4,276,060			$	89.75			3,318,188			$	110.09	2,960,595		$	102.13
	Exercised	(6,476,082	)		$	41.1			(7,708,343	)		$	38.73	(10,149,476	)	$	41.78
	Forfeited / expired	(251,830	)		$	84.64			(155,237	)		$	67.5	(321,126	)	$	48.02
	Outstanding at end of year	43,375,747			$	65.03			45,827,599			$	59.45	50,372,991		$	53.01
	Exercisable at year-end	34,200,054			$	55.93			33,962,000			$	51.75	35,523,057		$	52.66
	RSUs activity:
	Outstanding at beginning of year	3,580,220							4,281,490					4,650,241
	Granted to officers and key employees	1,614,870							1,429,939					1,082,032
	Vested	(1,286,934	)						(2,077,485	)				(1,382,539	)
	Forfeited	(84,828	)						(53,724	)				(68,244	)
	Outstanding at end of year	3,823,328							3,580,220					4,281,490
	Stock options/SARs outstanding and exercisable:
			Outstanding											Exercisable
	Exercise Prices		Shares Outstanding at 12/31/13			Weighted-		Weighted-				Aggregate		Shares Outstanding at 12/31/13		Weighted-		Weighted-		Aggregate
						Average		Average				Intrinsic Value 2				Average		Average		Intrinsic Value 2
						Remaining		Exercise Price								Remaining		Exercise Price
						Contractual Life (Years)										Contractual Life (Years)
	$22.17 – 38.63		7,775,953			3.2		$	29.03			$	481	7,775,953		3.2		$	29.03	$	481
	$40.64 – 57.85		11,656,943			4.06		$	52.71			444		11,656,943		4.06		$	52.71	444
	$63.04 – 72.05		9,687,583			2.48		$	69.05			211		9,687,583		2.48		$	69.05	211
	$73.20 – 89.75		8,280,894			6.69		$	81.7			75		4,174,124		4.37		$	73.86	71
	$102.13 – 110.09		5,974,374			7.71		$	106.28			—		905,451		7.62		$	105.59	—
			43,375,747					$	65.03			$	1,211	34,200,054				$	55.93	$	1,207
	1	No SARS were granted during the years ended December 31, 2013 or 2012. Of the 2,960,595 awards granted during the year ended December 31, 2011, 2,722,689 were SARs.
	2	The difference between a stock award’s exercise price and the underlying stock’s market price at December 31, 2013, for awards with market price greater than the exercise price. Amounts are in millions of dollars.
	The computations of weighted-average exercise prices and aggregate intrinsic values are not applicable to RSUs since an RSU represents an agreement to issue shares of stock at the time of vesting.  At December 31, 2013, there were 3,823,328 outstanding RSUs with a weighted average remaining contractual life of 1.3 years.
	TABLE II— Additional Stock-based Award Information
	(Dollars in millions except per share data)		2013				2012				2011
	Stock Options/SARs activity:
	Weighted-average fair value per share of stock awards granted		$	28.34			$	39.2			$	36.73
	Intrinsic value of stock awards exercised		$	312			$	488			$	618
	Fair value of stock awards vested		$	167			$	66			$	96
	Cash received from stock awards exercised		$	152			$	112			$	161
	RSUs activity:
	Weighted-average fair value per share of stock awards granted		$	84.05			$	104.61			$	97.51
	Fair value of stock awards vested		$	117			$	229			$	143
	Before tax, stock-based compensation expense for 2013, 2012 and 2011 was $231 million, $245 million and $193 million, respectively, with a corresponding income tax benefit of $73 million, $78 million and $61 million, respectively.
In accordance with guidance on share-based payments, we classify stock-based compensation within Cost of goods sold, Selling, general and administrative expenses and Research and development expenses corresponding to the same line item as the cash compensation paid to respective employees, officers and non-employee directors.
We currently use shares in treasury stock to satisfy share award exercises.
The cash tax benefits realized from stock awards exercised for 2013, 2012 and 2011 were $127 million, $217 million and $235 million, respectively. We use the direct only method and tax law ordering approach to calculate the tax effects of stock-based compensation.  In certain jurisdictions, tax deductions for exercises of stock-based awards did not generate a cash benefit.  A tax benefit of approximately $39 million will be recorded in additional paid-in capital when these deductions reduce our future income taxes payable.

Derivative_financial_instrumen

Derivative financial instruments and risk management	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative financial instruments and risk management	'
	Derivative financial instruments and risk management
	Our earnings and cash flow are subject to fluctuations due to changes in foreign currency exchange rates, interest rates and commodity prices.  Our Risk Management Policy (policy) allows for the use of derivative financial instruments to prudently manage foreign currency exchange rate, interest rate and commodity price exposures.  Our policy specifies that derivatives are not to be used for speculative purposes.  Derivatives that we use are primarily foreign currency forward, option and cross currency contracts, interest rate swaps and commodity forward and option contracts.  Our derivative activities are subject to the management, direction and control of our senior financial officers.  Risk management practices, including the use of financial derivative instruments, are presented to the Audit Committee of the Board of Directors at least annually.
	All derivatives are recognized in Statement 3 at their fair value. On the date the derivative contract is entered into, we designate the derivative as (1) a hedge of the fair value of a recognized asset or liability (fair value hedge), (2) a hedge of a forecasted transaction or the variability of cash flow to be paid (cash flow hedge), or (3) an undesignated instrument. Changes in the fair value of a derivative that is qualified, designated and highly effective as a fair value hedge, along with the gain or loss on the hedged recognized asset or liability that is attributable to the hedged risk, are recorded in current earnings. Changes in the fair value of a derivative that is qualified, designated and highly effective as a cash flow hedge are recorded in Accumulated other comprehensive income (loss) (AOCI), to the extent effective, in Statement 3 until they are reclassified to earnings in the same period or periods during which the hedged transaction affects earnings.  Changes in the fair value of undesignated derivative instruments and the ineffective portion of designated derivative instruments are reported in current earnings. Cash flow from designated derivative financial instruments are classified within the same category as the item being hedged on Statement 5.  Cash flow from undesignated derivative financial instruments are included in the investing category on Statement 5.
	We formally document all relationships between hedging instruments and hedged items, as well as the risk-management objective and strategy for undertaking various hedge transactions.  This process includes linking all derivatives that are designated as fair value hedges to specific assets and liabilities in Statement 3 and linking cash flow hedges to specific forecasted transactions or variability of cash flow.
	We also formally assess, both at the hedge’s inception and on an ongoing basis, whether the designated derivatives that are used in hedging transactions are highly effective in offsetting changes in fair values or cash flow of hedged items.  When a derivative is determined not to be highly effective as a hedge or the underlying hedged transaction is no longer probable, we discontinue hedge accounting prospectively, in accordance with the derecognition criteria for hedge accounting.
	A.	Foreign currency exchange rate risk
	Foreign currency exchange rate movements create a degree of risk by affecting the U.S. dollar value of sales made and costs incurred in foreign currencies. Movements in foreign currency rates also affect our competitive position as these changes may affect business practices and/or pricing strategies of non-U.S.-based competitors. Additionally, we have balance sheet positions denominated in foreign currencies, thereby creating exposure to movements in exchange rates.
	Our Machinery and Power Systems operations purchase, manufacture and sell products in many locations around the world. As we have a diversified revenue and cost base, we manage our future foreign currency cash flow exposure on a net basis. We use foreign currency forward and option contracts to manage unmatched foreign currency cash inflow and outflow. Our objective is to minimize the risk of exchange rate movements that would reduce the U.S. dollar value of our foreign currency cash flow. Our policy allows for managing anticipated foreign currency cash flow for up to five years.
	We generally designate as cash flow hedges at inception of the contract any Australian dollar, Brazilian real, British pound, Canadian dollar, Chinese yuan, euro, Indian rupee, Japanese yen, Mexican peso, Singapore dollar, or Swiss franc forward or option contracts that meet the requirements for hedge accounting and the maturity extends beyond the current quarter-end. Designation is performed on a specific exposure basis to support hedge accounting. The remainder of Machinery and Power Systems foreign currency contracts are undesignated, including any hedges designed to protect our competitive exposure.
	As of December 31, 2013, $9 million of deferred net gains, net of tax, included in equity (AOCI in Statement 3), are expected to be reclassified to current earnings (Other income (expense) in Statement 1) over the next twelve months when earnings are affected by the hedged transactions.  The actual amount recorded in Other income (expense) will vary based on exchange rates at the time the hedged transactions impact earnings.
	In managing foreign currency risk for our Financial Products operations, our objective is to minimize earnings volatility resulting from conversion and the remeasurement of net foreign currency balance sheet positions, and future transactions denominated in foreign currencies. Our policy allows the use of foreign currency forward, option and cross currency contracts to offset the risk of currency mismatch between our receivables and debt, and exchange rate risk associated with future transactions denominated in foreign currencies. Substantially all such foreign currency forward, option and cross currency contracts are undesignated.
	B.	Interest rate risk
	Interest rate movements create a degree of risk by affecting the amount of our interest payments and the value of our fixed-rate debt. Our practice is to use interest rate derivatives to manage our exposure to interest rate changes and, in some cases, lower the cost of borrowed funds.
	Our Machinery and Power Systems operations generally use fixed rate debt as a source of funding.  Our objective is to minimize the cost of borrowed funds.  Our policy allows us to enter into fixed-to-floating interest rate swaps and forward rate agreements to meet that objective with the intent to designate as fair value hedges at inception of the contract all fixed-to-floating interest rate swaps.  Designation as a hedge of the fair value of our fixed rate debt is performed to support hedge accounting.
	Financial Products operations has a match-funding policy that addresses interest rate risk by aligning the interest rate profile (fixed or floating rate) of Cat Financial’s debt portfolio with the interest rate profile of their receivables portfolio within predetermined ranges on an ongoing basis. In connection with that policy, we use interest rate derivative instruments to modify the debt structure to match assets within the receivables portfolio. This matched funding reduces the volatility of margins between interest-bearing assets and interest-bearing liabilities, regardless of which direction interest rates move.
	Our policy allows us to use fixed-to-floating, floating-to-fixed, and floating-to-floating interest rate swaps to meet the match-funding objective.  We designate fixed-to-floating interest rate swaps as fair value hedges to protect debt against changes in fair value due to changes in the benchmark interest rate.  We designate most floating-to-fixed interest rate swaps as cash flow hedges to protect against the variability of cash flows due to changes in the benchmark interest rate.
	As of December 31, 2013, $3 million of deferred net losses, net of tax, included in equity (AOCI in Statement 3), related to Financial Products floating-to-fixed interest rate swaps, are expected to be reclassified to current earnings (Interest expense of Financial Products in Statement 1) over the next twelve months.  The actual amount recorded in Interest expense of Financial Products will vary based on interest rates at the time the hedged transactions impact earnings.
	We have, at certain times, liquidated fixed-to-floating and floating-to-fixed interest rate swaps at both Machinery and Power Systems and Financial Products.  The gains or losses associated with these swaps at the time of liquidation are amortized into earnings over the original term of the previously designated hedged item.
	In anticipation of issuing debt for the planned acquisition of Bucyrus International, Inc., we entered into interest rate swaps to manage our exposure to interest rate changes.  For the year ended December 31, 2011, we recognized a net loss of $149 million, included in Other income (expense) in Statement 1.  The contracts were liquidated in conjunction with the debt issuance in May 2011.  These contracts were not designated as hedging instruments, and therefore, did not receive hedge accounting treatment.
	C.	Commodity price risk
	Commodity price movements create a degree of risk by affecting the price we must pay for certain raw material. Our policy is to use commodity forward and option contracts to manage the commodity risk and reduce the cost of purchased materials.
	Our Machinery and Power Systems operations purchase base and precious metals embedded in the components we purchase from suppliers.  Our suppliers pass on to us price changes in the commodity portion of the component cost. In addition, we are subject to price changes on energy products such as natural gas and diesel fuel purchased for operational use.
	Our objective is to minimize volatility in the price of these commodities. Our policy allows us to enter into commodity forward and option contracts to lock in the purchase price of a portion of these commodities within a five-year horizon. All such commodity forward and option contracts are undesignated.
	The location and fair value of derivative instruments reported in Statement 3 are as follows:
	(Millions of dollars)	Consolidated Statement of Financial Position Location		Asset (Liability) Fair Value
				Years ended December 31,
				2013				2012				2011
	Designated derivatives
	Foreign exchange contracts
	Machinery and Power Systems	Receivables — trade and other		$	54			$	28			$	54
	Machinery and Power Systems	Long-term receivables — trade and other		—				—				19
	Machinery and Power Systems	Accrued expenses		(39		)		(66		)		(73		)
	Machinery and Power Systems	Other liabilities		—				—				(10		)
	Interest rate contracts
	Financial Products	Receivables — trade and other		7				17				15
	Financial Products	Long-term receivables — trade and other		115				209				233
	Financial Products	Accrued expenses		(6		)		(8		)		(6		)
				$	131			$	180			$	232
	Undesignated derivatives
	Foreign exchange contracts
	Machinery and Power Systems	Receivables — trade and other		$	19			$	31			$	27
	Machinery and Power Systems	Accrued expenses		(1		)		(63		)		(12		)
	Machinery and Power Systems	Other liabilities		—				—				(85		)
	Financial Products	Receivables — trade and other		7				10				7
	Financial Products	Accrued expenses		(4		)		(6		)		(16		)
	Financial Products	Long-term receivables — trade and other		9				—				—
	Interest rate contracts
	Financial Products	Receivables — trade and other		—				2				—
	Financial Products	Accrued expenses		—				(1		)		(1		)
	Commodity contracts
	Machinery and Power Systems	Receivables — trade and other		—				1				2
	Machinery and Power Systems	Accrued expenses		—				—				(9		)
				$	30			$	(26	)		$	(87	)
	The effect of derivatives designated as hedging instruments on Statement 1 is as follows:
	Fair Value Hedges				Year ended December 31, 2013
	(Millions of dollars)		Classification		Gains (Losses)				Gains (Losses)
					on Derivatives				on Borrowings
	Interest rate contracts
	Financial Products		Other income (expense)		$	(107	)		$	114
					$	(107	)		$	114
					Year ended December 31, 2012
			Classification		Gains (Losses)				Gains (Losses)
					on Derivatives				on Borrowings
Interest rate contracts
Financial Products		Other income (expense)		$	(20	)		$	36
				$	(20	)		$	36
				Year ended December 31, 2011
		Classification		Gains (Losses)				Gains (Losses)
				on Derivatives				on Borrowings
Interest rate contracts
Machinery and Power Systems		Other income (expense)		$	(1	)		$	1
Financial Products		Other income (expense)		39				(44		)
				$	38			$	(43	)
Cash Flow Hedges
(Millions of dollars)		Year ended December 31, 2013
						Recognized in Earnings
		Amount of				Classification of		Amount of Gains (Losses) Reclassified from AOCI to Earnings				Recognized in Earnings (Ineffective Portion)
		Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)
Foreign exchange contracts
Machinery and Power Systems		$	(4	)		Other income (expense)		$	(57	)	2	$	—
Interest rate contracts
Machinery and Power Systems		—				Other income (expense)		(3		)		—
Financial Products		(2		)		Interest expense of Financial Products		(6		)		1			1
		$	(6	)				$	(66	)		$	1
		Year ended December 31, 2012
						Recognized in Earnings
		Amount of				Classification of		Amount of				Recognized in Earnings (Ineffective Portion)
		Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)		Gains (Losses)
								Reclassified
								from AOCI to
								Earnings
Foreign exchange contracts
Machinery and Power Systems		$	(78	)		Other income (expense)		$	(30	)	2	$	—
Interest rate contracts
Financial Products		1				Interest expense of Financial Products		4				(1		)	1
		$	(77	)				$	(26	)		$	(1	)
		Year ended December 31, 2011
						Recognized in Earnings
		Amount of				Classification of		Amount of				Recognized in Earnings (Ineffective Portion)
		Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)		Gains (Losses)
								Reclassified
								from AOCI to
								Earnings
Foreign exchange contracts
Machinery and Power Systems		$	(34	)		Other income (expense)		$	70			$	—
Interest rate contracts
Machinery and Power Systems		—				Other income (expense)		(3		)		—
Financial Products		1				Interest expense of Financial Products		(12		)		(2		)	1
		$	(33	)				$	55			$	(2	)
1	The ineffective portion recognized in earnings is included in Other income (expense).
2	Includes $3 million and $7 million of losses reclassified from AOCI to Other income (expense) in 2013 and 2012, respectively as certain derivatives were dedesignated as the related transactions are no longer probable to occur.
The effect of derivatives not designated as hedging instruments on Statement 1 is as follows:
				Years ended December 31,
(Millions of dollars)		Classification of Gains (Losses)		2013				2012				2011
Foreign exchange contracts
Machinery and Power Systems		Other income (expense)		$	17			$	62			$	62
Financial Products		Other income (expense)		8				6				(15		)
Interest rate contracts
Machinery and Power Systems		Other income (expense)		(1		)		2				(149		)
Financial Products		Other income (expense)		(3		)		—				—
Commodity contracts
Machinery and Power Systems		Other income (expense)		(3		)		2				(17		)
				$	18			$	72			$	(119	)
We enter into International Swaps and Derivatives Association (ISDA) master netting agreements within Machinery & Power Systems and Financial Products that permit the net settlement of amounts owed under their respective derivative contracts. Under these master netting agreements, net settlement generally permits the company or the counterparty to determine the net amount payable for contracts due on the same date and in the same currency for similar types of derivative transactions. The master netting agreements generally also provide for net settlement of all outstanding contracts with a counterparty in the case of an event of default or a termination event.
Collateral is generally not required of the counterparties or of our company under the master netting agreements. As of December 31, 2013, 2012 and 2011, no cash collateral was received or pledged under the master netting agreements.
The effect of the net settlement provisions of the master netting agreements on our derivative balances upon an event of default or termination event is as follows:
December 31, 2013														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
Derivatives
Machinery & Power Systems		$	73			$	—			$	73			$	(32	)	$	—	$	41
Financial Products		138				—				138				(9		)	—		129
Total		$	211			$	—			$	211			$	(41	)	$	—	$	170
December 31, 2013														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
Derivatives
Machinery & Power Systems		$	(40	)		$	—			$	(40	)		$	32		$	—	$	(8	)
Financial Products		(10		)		—				(10		)		9			—		(1		)
Total		$	(50	)		$	—			$	(50	)		$	41		$	—	$	(9	)
December 31, 2012														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
Derivatives
Machinery & Power Systems		$	60			$	—			$	60			$	(59	)	$	—	$	1
Financial Products		238				—				238				(12		)	—		226
Total		$	298			$	—			$	298			$	(71	)	$	—	$	227
December 31, 2012														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
Derivatives
Machinery & Power Systems		$	(129	)		$	—			$	(129	)		$	59		$	—	$	(70	)
Financial Products		(15		)		—				(15		)		12			—		(3		)
Total		$	(144	)		$	—			$	(144	)		$	71		$	—	$	(73	)
December 31, 2011														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
Derivatives
Machinery & Power Systems		$	102			$	—			$	102			$	(102	)	$	—	$	—
Financial Products		255				—				255				(11		)	—		244
Total		$	357			$	—			$	357			$	(113	)	$	—	$	244
December 31, 2011														Gross Amounts Not Offset in the Statement of Financial Position
(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
Derivatives
Machinery & Power Systems		$	(189	)		$	—			$	(189	)		$	102		$	—	$	(87	)
Financial Products		(23		)		—				(23		)		11			—		(12		)
Total		$	(212	)		$	—			$	(212	)		$	113		$	—	$	(99	)

Other_income_expense

Other income (expense)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Other income (expense)	'
	Other income (expense)
			Years ended December 31,
	(Millions of dollars)		2013			2012			2011
	Investment and interest income		$	84		$	82		$	85
	Foreign exchange gains (losses) 1		(254		)	(116		)	21
	License fee income		114			99			80
	Gains (losses) on sale of securities and affiliated companies		21			4			17
	Impairment of available-for-sale securities		(1		)	(2		)	(5		)
	Miscellaneous income (loss)		1			63			(230		)	2
			$	(35	)	$	130		$	(32	)
	1	Includes gains (losses) from foreign exchange derivative contracts.  See Note 3 for further details.
	2	Miscellaneous income (loss) in 2011 includes forward starting swap costs of $149 million (see Note 3) and bridge financing costs of $54 million (see Note 24), both related to the acquisition of Bucyrus.

Income_taxes

Income taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income taxes	'
	Income taxes
	The components of profit before taxes were:
			Years ended December 31,
	(Millions of dollars)		2013				2012				2011
	U.S.		$	1,938			$	4,090			$	2,250
	Non-U.S.		3,190				4,146				4,475
			$	5,128			$	8,236			$	6,725
	Profit before taxes, as shown above, is based on the location of the entity to which such earnings are attributable. Where an entity’s earnings are subject to taxation, however, may not correlate solely to where an entity is located.  Thus, the income tax provision shown below as U.S. or non-U.S. may not correspond to the earnings shown above.
	The components of the provision (benefit) for income taxes were:
			Years ended December 31,
	(Millions of dollars)		2013				2012				2011
	Current tax provision (benefit):
	U.S.		$	407			$	971			$	750
	Non-U.S.		805				1,250				1,014
	State (U.S.)		33				56				72
			1,245				2,277				1,836
	Deferred tax provision (benefit):
	U.S.		79				332				2
	Non-U.S.		(7		)		(89		)		(92		)
	State (U.S.)		2				8				(26		)
			74				251				(116		)
	Total provision (benefit) for income taxes		$	1,319			$	2,528			$	1,720
	We paid net income tax and related interest of $1,544 million, $2,396 million and $1,369 million in 2013, 2012 and 2011, respectively.
	Reconciliation of the U.S. federal statutory rate to effective rate:
	(Millions of dollars)		Years ended December 31,
			2013							2012						2011
	Taxes at U.S. statutory rate		$	1,795			35	%		$	2,882			35	%	$	2,354		35	%
	(Decreases) increases in taxes resulting from:
	Non-U.S. subsidiaries taxed at other than 35%		(268		)		(5.2	)%		(342		)		(4.2	)%	(467		)	(6.9	)%
	State and local taxes, net of federal		23				0.4	%		55				0.7	%	30			0.4	%
	Interest and penalties, net of tax		4				0.1	%		22				0.3	%	25			0.4	%
	U.S. research and production incentives		(91		)		(1.8	)%		(80		)		(1.0	)%	(152		)	(2.3	)%
	Other—net		(2		)		—	%		(27		)		(0.3	)%	(7		)	(0.1	)%
			1,461				28.5	%		2,510				30.5	%	1,783			26.5	%
	Prior year tax and interest adjustments		(55		)		(1.1	)%		(300		)		(3.7	)%	41			0.6	%
	Nondeductible goodwill		—				—	%		318				3.9	%	33			0.5	%
	Release of valuation allowances		—				—	%		—				—	%	(24		)	(0.3	)%
	Non-U.S. earnings reinvestment changes		—				—	%		—				—	%	(113		)	(1.7	)%
	Tax law changes		(87		)		(1.7	)%		—				—	%	—			—	%
	Provision (benefit) for income taxes		$	1,319			25.7	%		$	2,528			30.7	%	$	1,720		25.6	%
	The provision for income taxes for 2013 included a $87 million benefit primarily related to the research and development tax credit that was retroactively extended in 2013 for 2012 and a benefit of $55 million resulting from true-up of estimated amounts used in the tax provision to the 2012 U.S. tax return as filed in September 2013.
	The provision for income taxes for 2012 included a $300 million benefit for adjusting prior year taxes and interest primarily to reflect a settlement reached with the U.S. Internal Revenue Service (IRS) for tax years 2000 to 2006. The largest drivers of the settlement benefit were a $188 million benefit to remeasure and recognize previously unrecognized tax benefits and a $96 million benefit to adjust related interest and penalties, net of tax. This benefit was offset by a negative impact from nondeductible goodwill of $203 million related to the ERA Mining Machinery Limited (Siwei) goodwill impairment and $115 million related to the divestiture of portions of the Bucyrus distribution business. See Note 10 and Note 26 for more information.
	The provision for income taxes for 2011 included a $113 million benefit due to repatriation of non-U.S. earnings with available foreign tax credits in excess of the U.S. tax liability on the dividends and a $24 million benefit for the release of a valuation allowance against the deferred tax assets of certain non-U.S. entities due to tax planning actions implemented in 2011.  These benefits were offset by a charge of $41 million due to an increase in prior year unrecognized tax benefits and a negative impact of $33 million from nondeductible goodwill primarily related to the divestiture of a portion of the Bucyrus distribution business.
	We have recorded income tax expense at U.S. tax rates on all profits, except for undistributed profits of non-U.S. subsidiaries of approximately $17 billion which are considered indefinitely reinvested.  Determination of the amount of unrecognized deferred tax liability related to indefinitely reinvested profits is not feasible.  If management intentions or U.S. tax law changes in the future, there may be a significant negative impact on the provision for income taxes to record an incremental tax liability in the period the change occurs.
	Accounting for income taxes under U.S. GAAP requires that individual tax-paying entities of the company offset all current deferred tax liabilities and assets within each particular tax jurisdiction and present them as a single amount in the Consolidated Financial Position. A similar procedure is followed for all noncurrent deferred tax liabilities and assets. Amounts in different tax jurisdictions cannot be offset against each other. The amount of deferred income taxes at December 31, included on the following lines in Statement 3, are as follows:
			December 31,
	(Millions of dollars)		2013				2012				2011
	Assets:
	Deferred and refundable income taxes		$	877			$	979			$	1,044
	Noncurrent deferred and refundable income taxes		456				1,863				2,005
			1,333				2,842				3,049
	Liabilities:
	Other current liabilities		86				66				69
	Other liabilities		447				484				559
	Deferred income taxes—net		$	800			$	2,292			$	2,421
	Deferred income tax assets and liabilities:
			December 31,
	(Millions of dollars)		2013				2012				2011
	Deferred income tax assets:
	Pension		$	903			$	2,100			$	2,130
	Postemployment benefits other than pensions		1,435				1,678				1,622
	Tax carryforwards		760				663				821
	Warranty reserves		313				358				338
Stock-based compensation		320				281				232
Inventory		112				195				148
Allowance for credit losses		184				170				131
Post sale discounts		146				141				141
Deferred compensation		126				110				102
Other—net		524				491				537
		4,823				6,187				6,202
Deferred income tax liabilities:
Capital and intangible assets		(2,815		)		(2,759		)		(2,866		)
Bond discount		(240		)		(249		)		(37		)
Translation		(133		)		(173		)		(193		)
Undistributed profits of non-U.S. subsidiaries		(90		)		(128		)		(215		)
		(3,278		)		(3,309		)		(3,311		)
Valuation allowance for deferred tax assets		(745		)		(586		)		(470		)
Deferred income taxes—net		$	800			$	2,292			$	2,421
At December 31, 2013, approximately $707 million of U.S. state tax net operating losses (NOLs) and $169 million of U.S. state tax credit carryforwards were available. The state NOLs primarily expire between 2014 and 2033.  The state tax credit carryforwards primarily expire over the next five to fifteen years.  We established a valuation allowance of $188 million for those state NOLs and credit carryforwards that are more likely than not to expire prior to utilization.
At December 31, 2013, amounts and expiration dates of net operating loss carryforwards in various non-U.S. taxing jurisdictions were:
(Millions of dollars)
2014				2015				2016				2017			2018-2034			Unlimited		Total
$	9			$	10			$	13			$	15		$	760		$	1,192	$	1,999
At December 31, 2013 a valuation allowance of $557 million has been recorded at certain non-U.S. entities that have not yet demonstrated consistent and/or sustainable profitability to support the realization of net deferred tax assets.
A reconciliation of the beginning and ending amount of gross unrecognized tax benefits for uncertain tax positions, including positions impacting only the timing of tax benefits, follows.
Reconciliation of unrecognized tax benefits: 1
		Years ended December 31,
(Millions of dollars)		2013				2012				2011
Balance at January 1,		$	715			$	958			$	789
Additions for tax positions related to current year		63				64				118
Additions for tax positions related to prior years		52				178				108
Reductions for tax positions related to prior years		(31		)		(266		)		(30		)
Reductions for settlements 2		(15		)		(191		)		—
Reductions for expiration of statute of limitations		(25		)		(28		)		(27		)
Balance at December 31,		$	759			$	715			$	958
Amount that, if recognized, would impact the effective tax rate		$	726			$	669			$	835
1	Foreign currency translation amounts are included within each line as applicable.
2	Includes cash payment or other reduction of assets to settle liability.
We classify interest and penalties on income taxes as a component of the provision for income taxes. We recognized a net provision (benefit) for interest and penalties of $7 million, $(114) million and $39 million during the years ended December 31, 2013, 2012 and 2011, respectively. The 2012 amount includes a benefit from adjustments for the 2000 through 2006 settlement discussed previously. The total amount of interest and penalties accrued was $59 million, $134 million and $240 million as of December 31, 2013, 2012 and 2011, respectively.
It is reasonably possible that the amount of unrecognized tax benefits will change in the next 12 months.  The IRS is currently examining our U.S. tax returns for 2007 to 2009 including the impact of a loss carryback to 2005. While we have not yet received a Revenue Agent's Report generally issued at the end of the field examination process, we have received Notices of Proposed Adjustment from the IRS relating to U.S. taxation of certain non-U.S. operations and foreign tax credits. We disagree with these proposed adjustments, and to the extent that adjustments are assessed upon completion of the field examination relating to these matters, we would vigorously contest the adjustments in appeals. The completion of the field examination for this audit is expected in 2014. In our major non-U.S. jurisdictions, tax years are typically subject to examination for three to eight years. In the opinion of management, the ultimate disposition of these matters will not have a material adverse effect on our consolidated financial position, liquidity or results of operations. Due to the uncertainty related to the timing and potential outcome of these matters, we can not estimate the range of reasonably possible change in unrecognized tax benefits in the next 12 months.

Cat_Financial_Financing_Activi

Cat Financial Financing Activities	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Cat Financial Financing Activities	'
	Cat Financial Financing Activities
	A.	Wholesale inventory receivables
	Wholesale inventory receivables are receivables of Cat Financial that arise when Cat Financial provides financing for a dealer’s purchase of inventory. These receivables are included in Receivables—trade and other and Long-term receivables—trade and other in Statement 3 and were $1,945 million, $2,152 million, and $1,990 million at December 31, 2013, 2012 and 2011, respectively.
	Contractual maturities of outstanding wholesale inventory receivables:
	(Millions of dollars)		December 31, 2013
	Amounts Due In		Wholesale				Wholesale				Wholesale				Total
			Installment				Finance				Notes
			Contracts				Leases
	2014		$	258			$	125			$	636			$	1,019
	2015		106				95				231				432
	2016		77				58				150				285
	2017		39				31				18				88
	2018		17				13				5				35
	Thereafter		3				—				—				3
			500				322				1,040				1,862
	Guaranteed residual value		—				90				—				90
	Unguaranteed residual value		—				35				—				35
	Less: Unearned income		(8		)		(31		)		(3		)		(42		)
	Total		$	492			$	416			$	1,037			$	1,945
	Please refer to Note 18 and Table III for fair value information.
	B.	Finance receivables
	Finance receivables are receivables of Cat Financial, which generally can be repaid or refinanced without penalty prior to contractual maturity. Total finance receivables reported in Statement 3 are net of an allowance for credit losses.
	Cat Financial provides financing only when acceptable criteria are met. Credit decisions are based on, among other things, the customer’s credit history, financial strength and intended use of equipment. Cat Financial typically maintains a security interest in retail financed equipment and requires physical damage insurance coverage on financed equipment.
	Contractual maturities of outstanding finance receivables:
	(Millions of dollars)		December 31, 2013
	Amounts Due In		Retail				Retail Finance				Retail				Total
			Installment				Leases				Notes
			Contracts
	2014		$	2,105			$	3,234			$	3,627			$	8,966
	2015		1,627				2,183				2,263				6,073
	2016		1,093				1,292				1,758				4,143
	2017		590				581				1,475				2,646
	2018		198				203				669				1,070
	Thereafter		26				139				1,070				1,235
			5,639				7,632				10,862				24,133
	Guaranteed residual value		—				354				—				354
	Unguaranteed residual value		—				486				—				486
	Less: Unearned income		(93		)		(730		)		(89		)		(912		)
	Total		$	5,546			$	7,742			$	10,773			$	24,061
	Please refer to Note 18 and Table III for fair value information.
	C.	Credit quality of financing receivables and allowance for credit losses
	Cat Financial applies a systematic methodology to determine the allowance for credit losses for finance receivables.  Based upon Cat Financial’s analysis of credit losses and risk factors, portfolio segments are as follows:
	•	Customer - Finance receivables with retail customers.
	•	Dealer - Finance receivables with Caterpillar dealers.
	Cat Financial further evaluates portfolio segments by the class of finance receivables, which is defined as a level of information (below a portfolio segment) in which the finance receivables have the same initial measurement attribute and a similar method for assessing and monitoring credit risk.  Typically, Cat Financial’s finance receivables within a geographic area have similar credit risk profiles and methods for assessing and monitoring credit risk.  Cat Financial’s classes, which align with management reporting for credit losses, are as follows:
	•	North America - Finance receivables originated in the United States or Canada.
	•	Europe - Finance receivables originated in Europe, Africa, Middle East and the Commonwealth of Independent States.
	•	Asia Pacific - Finance receivables originated in Australia, New Zealand, China, Japan, South Korea and Southeast Asia.
	•	Mining - Finance receivables related to large mining customers worldwide.
	•	Latin America - Finance receivables originated in Central and South American countries and Mexico.
	•	Caterpillar Power Finance - Finance receivables related to marine vessels with Caterpillar engines worldwide and Caterpillar electrical power generation, gas compression and co-generation systems and non-Caterpillar equipment that is powered by these systems worldwide.
	Impaired loans and finance leases
	For all classes, a loan or finance lease is considered impaired, based on current information and events, if it is probable that Cat Financial will be unable to collect all amounts due according to the contractual terms of the loan or finance lease.  Loans and finance leases reviewed for impairment include loans and finance leases that are past due, non-performing or in bankruptcy. Recognition of income is suspended and the loan or finance lease is placed on non-accrual status when management determines that collection of future income is not probable (generally after 120 days past due except in locations where local regulatory requirements dictate a different method, or in instances in which relevant information is known that warrants placing the loan or finance lease on non-accrual status).  Accrual is resumed, and previously suspended income is recognized, when the loan or finance lease becomes contractually current and/or collection doubts are removed.  Cash receipts on impaired loans or finance leases are recorded against the receivable and then to any unrecognized income.
	During 2013, Cat Financial changed the classification of certain loans and finance leases previously reported as impaired. While these loans and finance leases had been incorrectly reported as impaired, the related allowance for these loans and finance leases was appropriately measured; therefore, this change had no impact on the allowance for credit losses. The impact of incorrectly reporting these loans and finance leases as impaired was not considered material to previously issued financial statements; however, prior period impaired loan and finance lease balances have been revised throughout Notes 6 and 18.
	At December 31, 2013, 2012 and 2011, there were no impaired loans or finance leases for the Dealer portfolio segment.  The average recorded investment for impaired loans and finance leases within the Dealer portfolio segment was zero during 2013, 2012 and 2011.
	Individually impaired loans and finance leases for the Customer portfolio segment were as follows:
		December 31, 2013
	(Millions of dollars)	Recorded				Unpaid				Related
		Investment				Principal				Allowance
						Balance
	Impaired Loans and Finance Leases With No Allowance Recorded
	Customer
	North America	$	23			$	22			$	—
Europe	48				47				—
Asia Pacific	7				7				—
Mining	134				134				—
Latin America	11				11				—
Caterpillar Power Finance	223				222				—
Total	$	446			$	443			$	—
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America	$	13			$	13			$	4
Europe	20				19				7
Asia Pacific	16				16				2
Mining	—				—				—
Latin America	23				23				6
Caterpillar Power Finance	110				106				51
Total	$	182			$	177			$	70
Total Impaired Loans and Finance Leases
Customer
North America	$	36			$	35			$	4
Europe	68				66				7
Asia Pacific	23				23				2
Mining	134				134				—
Latin America	34				34				6
Caterpillar Power Finance	333				328				51
Total	$	628			$	620			$	70
	December 31, 2012
(Millions of dollars)	Recorded				Unpaid				Related
	Investment				Principal				Allowance
					Balance
Impaired Loans and Finance Leases With No Allowance Recorded
Customer
North America	$	28			$	27			$	—
Europe	45				45				—
Asia Pacific	2				2				—
Mining	1				1				—
Latin America	7				7				—
Caterpillar Power Finance	295				295				—
Total	$	378			$	377			$	—
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America	$	25			$	23			$	7
Europe	28				26				11
Asia Pacific	19				19				4
Mining	—				—				—
Latin America	30				30				8
Caterpillar Power Finance	113				109				24
Total	$	215			$	207			$	54
Total Impaired Loans and Finance Leases
Customer
North America	$	53			$	50			$	7
Europe	73				71				11
Asia Pacific	21				21				4
Mining	1				1				—
Latin America	37				37				8
Caterpillar Power Finance	408				404				24
Total	$	593			$	584			$	54
	December 31, 2011
(Millions of dollars)	Recorded				Unpaid				Related
	Investment				Principal				Allowance
					Balance
Impaired Loans and Finance Leases With No Allowance Recorded
Customer
North America	$	83			$	80			$	—
Europe	47				46				—
Asia Pacific	4				4				—
Mining	8				8				—
Latin America	9				9				—
Caterpillar Power Finance	175				170				—
Total	$	326			$	317			$	—
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America	$	23			$	20			$	6
Europe	22				21				8
Asia Pacific	9				9				3
Mining	—				—				—
Latin America	19				19				4
Caterpillar Power Finance	85				85				13
Total	$	158			$	154			$	34
Total Impaired Loans and Finance Leases
Customer
North America	$	106			$	100			$	6
Europe	69				67				8
Asia Pacific	13				13				3
Mining	8				8				—
Latin America	28				28				4
Caterpillar Power Finance	260				255				13
Total	$	484			$	471			$	34
		Years ended December 31,
		2013								2012							2011
(Millions of dollars)		Average				Interest				Average				Interest			Average			Interest
		Recorded				Income				Recorded				Income			Recorded			Income
		Investment				Recognized				Investment				Recognized			Investment			Recognized
Impaired Loans and Finance Leases With No Allowance Recorded
Customer
North America		$	25			$	3			$	50			$	3		$	91		$	4
Europe		49				1				45				1			11			—
Asia Pacific		4				—				3				—			5			—
Mining		61				3				8				—			8			1
Latin America		11				—				6				—			9			1
Caterpillar Power Finance		271				5				220				2			221			6
Total		$	421			$	12			$	332			$	6		$	345		$	12
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America		$	18			$	1			$	25			$	1		$	56		$	2
Europe		22				1				27				1			20			—
Asia Pacific		18				1				15				1			11			1
Mining		1				—				—				—			—			—
Latin America		44				2				27				2			11			—
Caterpillar Power Finance		135				1				94				—			61			—
Total		$	238			$	6			$	188			$	5		$	159		$	3
Total Impaired Loans and Finance Leases
Customer
North America		$	43			$	4			$	75			$	4		$	147		$	6
Europe		71				2				72				2			31			—
Asia Pacific		22				1				18				1			16			1
Mining		62				3				8				—			8			1
Latin America		55				2				33				2			20			1
Caterpillar Power Finance		406				6				314				2			282			6
Total		$	659			$	18			$	520			$	11		$	504		$	15
Non-accrual and past due loans and finance leases
For all classes, Cat Financial considers a loan or finance lease past due if any portion of a contractual payment is due and unpaid for more than 30 days.  Recognition of income is suspended and the loan or finance lease is placed on non-accrual status when management determines that collection of future income is not probable (generally after 120 days past due except in locations where local regulatory requirements dictate a different method, or in instances in which relevant information is known that warrants placing the loan or finance lease on non-accrual status).  Accrual is resumed, and previously suspended income is recognized, when the loan or finance lease becomes contractually current and/or collection doubts are removed.
As of December 31, 2013, 2012 and 2011, there were no loans or finance leases on non-accrual status for the Dealer portfolio segment.
The investment in customer loans and finance leases on non-accrual status was as follows:
		December 31,
(Millions of dollars)		2013				2012				2011
Customer
North America		$	26			$	59			$	112
Europe		28				38				58
Asia Pacific		50				36				24
Mining		23				12				12
Latin America		179				148				108
Caterpillar Power Finance		119				220				158
Total		$	425			$	513			$	472
Aging related to loans and finance leases was as follows:
(Millions of dollars)		December 31, 2013
		31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
										Days Past Due				Due						Finance		Accruing
																				Receivables
Customer
North America		$	37			$	12			$	24			$	73		$	6,508		$	6,581	$	—
Europe		26				15				29				70			2,805			2,875		6
Asia Pacific		54				23				59				136			2,752			2,888		11
Mining		3				—				12				15			2,128			2,143		—
Latin America		54				25				165				244			2,474			2,718		5
Caterpillar Power Finance		55				30				60				145			2,946			3,091		—
Dealer
North America		—				—				—				—			2,283			2,283		—
Europe		—				—				—				—			150			150		—
Asia Pacific		—				—				—				—			583			583		—
Mining		—				—				—				—			1			1		—
Latin America		—				—				—				—			748			748		—
Caterpillar Power Finance		—				—				—				—			—			—		—
Total		$	229			$	105			$	349			$	683		$	23,378		$	24,061	$	22
(Millions of dollars)		December 31, 2012
		31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
										Days Past Due				Due						Finance		Accruing
																				Receivables
Customer
North America		$	35			$	8			$	52			$	95		$	5,872		$	5,967	$	—
Europe		23				9				36				68			2,487			2,555		6
Asia Pacific		53				19				54				126			2,912			3,038		18
Mining		—				1				12				13			1,960			1,973		—
Latin America		62				19				138				219			2,500			2,719		—
Caterpillar Power Finance		15				14				126				155			3,017			3,172		4
Dealer
North America		—				—				—				—			2,063			2,063		—
Europe		—				—				—				—			185			185		—
Asia Pacific		—				—				—				—			751			751		—
Mining		—				—				—				—			1			1		—
Latin America		—				—				—				—			884			884		—
Caterpillar Power Finance		—				—				—				—			—			—		—
Total		$	188			$	70			$	418			$	676		$	22,632		$	23,308	$	28
(Millions of dollars)		December 31, 2011
		31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
										Days Past Due				Due						Finance		Accruing
																				Receivables
Customer
North America		$	74			$	39			$	111			$	224		$	5,378		$	5,602	$	9
Europe		27				11				57				95			2,129			2,224		10
Asia Pacific		47				23				38				108			2,769			2,877		14
Mining		—				—				12				12			1,473			1,485		—
Latin America		32				15				99				146			2,339			2,485		—
Caterpillar Power Finance		14				16				125				155			2,765			2,920		25
Dealer
North America		—				—				—				—			1,689			1,689		—
Europe		—				—				—				—			57			57		—
Asia Pacific		—				—				—				—			161			161		—
Mining		—				—				—				—			—			—		—
Latin America		—				—				—				—			480			480		—
Caterpillar Power Finance		—				—				—				—			—			—		—
Total		$	194			$	104			$	442			$	740		$	19,240		$	19,980	$	58
Allowance for credit loss activity
The allowance for credit losses as of December 31, 2013 was $375 million compared with $423 million as of December 31, 2012.  The overall decrease of $48 million in the allowance for credit losses during the year reflects a $55 million decrease associated with the lower allowance rate, partially offset by a $7 million increase due to an increase in Cat Financial's net finance receivables portfolio. The lower allowance rate reflects write-offs taken in 2013, primarily related to Cat Financial's European marine portfolio that had been previously provided for in the allowance for credit losses, favorable changes in Cat Financial's estimated probabilities of default (due to improved financial health of Cat Financial's customers), continued refinements of estimated loss emergence periods and general improvement in the economic conditions of the industries Cat Financial serves.
The allowance for credit losses as of December 31, 2012 was $423 million compared with $366 million as of December 31, 2011. The overall increase of $57 million in allowance for credit losses during the year reflects a $51 million increase in allowance due to an increase in Cat Financial’s net finance receivables portfolio and a $6 million increase associated with the higher allowance rate.
An analysis of the allowance for credit losses during 2013, 2012 and 2011 was as follows:
(Millions of dollars)		December 31, 2013
		Customer				Dealer				Total
Allowance for Credit Losses:
Balance at beginning of year		$	414			$	9			$	423
Receivables written off		(179		)		—				(179		)
Recoveries on receivables previously written off		56				—				56
Provision for credit losses		83				1				84
Other		(9		)		—				(9		)
Balance at end of year		$	365			$	10			$	375
Individually evaluated for impairment		$	70			$	—			$	70
Collectively evaluated for impairment		295				10				305
Ending Balance		$	365			$	10			$	375
Recorded Investment in Finance Receivables:
Individually evaluated for impairment		$	628			$	—			$	628
Collectively evaluated for impairment		19,668				3,765				23,433
Ending Balance		$	20,296			$	3,765			$	24,061
(Millions of dollars)		December 31, 2012
		Customer				Dealer				Total
Allowance for Credit Losses:
Balance at beginning of year		$	360			$	6			$	366
Receivables written off		(149		)		—				(149		)
Recoveries on receivables previously written off		47				—				47
Provision for credit losses		157				3				160
Other		(1		)		—				(1		)
Balance at end of year		$	414			$	9			$	423
Individually evaluated for impairment		$	54			$	—			$	54
Collectively evaluated for impairment		360				9				369
Ending Balance		$	414			$	9			$	423
Recorded Investment in Finance Receivables:
Individually evaluated for impairment		$	593			$	—			$	593
Collectively evaluated for impairment		18,831				3,884				22,715
Ending Balance		$	19,424			$	3,884			$	23,308
(Millions of dollars)		December 31, 2011
		Customer				Dealer				Total
Allowance for Credit Losses:
Balance at beginning of year		$	357			$	5			$	362
Receivables written off		(210		)		—				(210		)
Recoveries on receivables previously written off		52				—				52
Provision for credit losses		167				1				168
Other		(6		)		—				(6		)
Balance at end of year		$	360			$	6			$	366
Individually evaluated for impairment		$	34			$	—			$	34
Collectively evaluated for impairment		326				6				332
Ending Balance		$	360			$	6			$	366
Recorded Investment in Finance Receivables:
Individually evaluated for impairment		$	484			$	—			$	484
Collectively evaluated for impairment		17,109				2,387				19,496
Ending Balance		$	17,593			$	2,387			$	19,980
Credit quality of finance receivables
The credit quality of finance receivables is reviewed on a monthly basis.  Credit quality indicators include performing and non-performing.  Non-performing is defined as finance receivables currently over 120 days past due and/or on non-accrual status or in bankruptcy.  Finance receivables not meeting the criteria listed above are considered performing.  Non-performing receivables have the highest probability for credit loss.  The allowance for credit losses attributable to non-performing receivables is based on the most probable source of repayment, which is normally the liquidation of collateral.  In determining collateral value, Cat Financial estimates the current fair market value of the collateral less selling costs. In addition, Cat Financial considers credit enhancements such as additional collateral and contractual third-party guarantees in determining the allowance for credit losses attributable to non-performing receivables.
The recorded investment in performing and non-performing finance receivables was as follows:
(Millions of dollars)		December 31, 2013
		Customer				Dealer				Total
Performing
North America		$	6,555			$	2,283			$	8,838
Europe		2,847				150				2,997
Asia Pacific		2,838				583				3,421
Mining		2,120				1				2,121
Latin America		2,539				748				3,287
Caterpillar Power Finance		2,972				—				2,972
Total Performing		$	19,871			$	3,765			$	23,636
Non-Performing
North America		$	26			$	—			$	26
Europe		28				—				28
Asia Pacific		50				—				50
Mining		23				—				23
Latin America		179				—				179
Caterpillar Power Finance		119				—				119
Total Non-Performing		$	425			$	—			$	425
Performing & Non-Performing
North America		$	6,581			$	2,283			$	8,864
Europe		2,875				150				3,025
Asia Pacific		2,888				583				3,471
Mining		2,143				1				2,144
Latin America		2,718				748				3,466
Caterpillar Power Finance		3,091				—				3,091
Total		$	20,296			$	3,765			$	24,061
(Millions of dollars)		December 31, 2012
		Customer				Dealer				Total
Performing
North America		$	5,908			$	2,063			$	7,971
Europe		2,517				185				2,702
Asia Pacific		3,002				751				3,753
Mining		1,961				1				1,962
Latin America		2,571				884				3,455
Caterpillar Power Finance		2,952				—				2,952
Total Performing		$	18,911			$	3,884			$	22,795
Non-Performing
North America		$	59			$	—			$	59
Europe		38				—				38
Asia Pacific		36				—				36
Mining		12				—				12
Latin America		148				—				148
Caterpillar Power Finance		220				—				220
Total Non-Performing		$	513			$	—			$	513
Performing & Non-Performing
North America		$	5,967			$	2,063			$	8,030
Europe		2,555				185				2,740
Asia Pacific		3,038				751				3,789
Mining		1,973				1				1,974
Latin America		2,719				884				3,603
Caterpillar Power Finance		3,172				—				3,172
Total		$	19,424			$	3,884			$	23,308
(Millions of dollars)		December 31, 2011
		Customer				Dealer				Total
Performing
North America		$	5,490			$	1,689			$	7,179
Europe		2,166				57				2,223
Asia Pacific		2,853				161				3,014
Mining		1,473				—				1,473
Latin America		2,377				480				2,857
Caterpillar Power Finance		2,762				—				2,762
Total Performing		$	17,121			$	2,387			$	19,508
Non-Performing
North America		$	112			$	—			$	112
Europe		58				—				58
Asia Pacific		24				—				24
Mining		12				—				12
Latin America		108				—				108
Caterpillar Power Finance		158				—				158
Total Non-Performing		$	472			$	—			$	472
Performing & Non-Performing
North America		$	5,602			$	1,689			$	7,291
Europe		2,224				57				2,281
Asia Pacific		2,877				161				3,038
Mining		1,485				—				1,485
Latin America		2,485				480				2,965
Caterpillar Power Finance		2,920				—				2,920
Total		$	17,593			$	2,387			$	19,980
Troubled Debt Restructurings
A restructuring of a loan or finance lease receivable constitutes a troubled debt restructuring (TDR) when the lender grants a concession it would not otherwise consider to a borrower experiencing financial difficulties.  Concessions granted may include extended contract maturities, inclusion of interest only periods, below market interest rates, and extended skip payment periods.
TDRs are reviewed along with other receivables as part of management’s ongoing evaluation of the adequacy of the allowance for credit losses.  The allowance for credit losses attributable to TDRs is based on the most probable source of repayment, which is normally the liquidation of collateral.  In determining collateral value, Cat Financial estimates the current fair market value of the collateral less selling costs. In addition, Cat Financial factors in credit enhancements such as additional collateral and contractual third-party guarantees in determining the allowance for credit losses attributable to TDRs.
There were no loans or finance lease receivables modified as TDRs during the years ended December 31, 2013, 2012 and 2011 for the Dealer portfolio segment.
Loan and finance lease receivables in the Customer portfolio segment modified as TDRs during the years ended December 31, 2013, 2012, and 2011 were as follows:
(Millions of dollars)		Year ended December 31, 2013
		Number			Pre-TDR				Post-TDR
		of Contracts			Outstanding				Outstanding
					Recorded				Recorded
					Investment				Investment
Customer
North America		62			$	9			$	9
Europe		51			7				7
Asia Pacific		3			1				1
Mining		45			123				123
Latin America		16			2				2
Caterpillar Power Finance 1		17			153				157
Total 2		194			$	295			$	299
		Year ended December 31, 2012
		Number			Pre-TDR				Post-TDR
		of Contracts			Outstanding				Outstanding
					Recorded				Recorded
					Investment				Investment
Customer
North America		98			$	15			$	15
Europe		21			8				8
Asia Pacific		12			3				3
Mining		—			—				—
Latin America		41			5				5
Caterpillar Power Finance 1		27			253				253
Total 2		199			$	284			$	284
		Year ended December 31, 2011
		Number			Pre-TDR				Post-TDR
		of Contracts			Outstanding				Outstanding
					Recorded				Recorded
					Investment				Investment
Customer
North America		71			$	13			$	13
Europe		7			44				44
Asia Pacific		—			—				—
Mining		—			—				—
Latin America		12			10				10
Caterpillar Power Finance 1		35			117				117
Total 2		125			$	184			$	184
1	During the years ended December 31, 2013, 2012 and 2011, $25 million, $24 million and $15 million, respectively, of additional funds were subsequently loaned to a borrower whose terms had been modified in a TDR. The $25 million, $24 million and $15 million of additional funds are not reflected in the table above as no incremental modifications have been made with the borrower during the periods presented. At December 31, 2013, remaining commitments to lend additional funds to a borrower whose terms have been modified in a TDR were $6 million.
2	Modifications include extended contract maturities, inclusion of interest only periods, below market interest rates, and extended skip payment periods.
TDRs in the Customer portfolio segment with a payment default during the years ended December 31, 2013, 2012, and 2011 which had been modified within twelve months prior to the default date, were as follows:
(Millions of dollars)		Year ended December 31, 2013							Year ended December 31, 2012							Year ended December 31, 2011
		Number			Post-TDR				Number			Post-TDR				Number		Post-TDR
		of Contracts			Recorded				of Contracts			Recorded				of Contracts		Recorded
					Investment							Investment						Investment
Customer
North America		19			$	4			49			$	4			48		$	26
Europe		5			—				—			—				1		1
Asia Pacific		—			—				2			1				—		—
Mining		—			—				—			—				—		—
Latin America		—			—				—			—				7		4
Caterpillar Power Finance		2			3				16			21				14		70
Total		26			$	7			67			$	26			70		$	101
D.	Securitized Retail Installment Sale Contracts and Finance Leases
Cat Financial has periodically transferred certain finance receivables relating to their retail installment sale contracts and finance leases to special-purpose entities (SPEs) as part of their asset-backed securitization program.  These SPEs were concluded to be VIEs. Cat Financial determined that they were the primary beneficiary based on their power to direct activities through their role as servicer and their obligation to absorb losses and right to receive benefits and therefore consolidated these securitization SPEs.
On April 25, 2011, Cat Financial exercised a clean-up call on their only outstanding asset-backed securitization transaction.  As a result, Cat Financial had no assets or liabilities related to their securitization program as of  December 31, 2013, 2012 or 2011.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories
	Inventories (principally using the LIFO method) are comprised of the following:
		December 31,
	(Millions of dollars)	2013		2012		2011
	Raw materials	$	2,966	$	3,573	$	3,766
	Work-in-process	2,589		2,920		2,959
	Finished goods	6,785		8,767		7,562
	Supplies	285		287		257
	Total inventories	$	12,625	$	15,547	$	14,544
	We had long-term material purchase obligations of approximately $1,568 million at December 31, 2013.
	During 2013 inventory quantities were reduced. This reduction resulted in a liquidation of LIFO inventory layers carried at lower costs prevailing in prior years as compared with current costs. In 2013, the effect of this reduction of inventory decreased Cost of goods sold by approximately $115 million and increased Profit by approximately $81 million or $0.12 per share.

Property_plant_and_equipment

Property, plant and equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment
					December 31,
	(Millions of dollars)		Useful		2013				2012				2011
			Lives (Years)
	Land		—		$	688			$	723			$	753
	Buildings and land improvements		20-45		6,928				6,214				5,857
	Machinery, equipment and other		10-Mar		16,793				16,073				14,435
	Equipment leased to others		10-Jan		5,365				4,658				4,285
	Construction-in-process		—		1,542				2,264				1,996
	Total property, plant and equipment, at cost				31,316				29,932				27,326
	Less: Accumulated depreciation				(14,241		)		(13,471		)		(12,931		)
	Property, plant and equipment–net				$	17,075			$	16,461			$	14,395
	We had commitments for the purchase or construction of capital assets of approximately $269 million at December 31, 2013.
	Assets recorded under capital leases: 1
			December 31,
	(Millions of dollars)		2013				2012				2011
	Gross capital leases 2		$	125			$	134			$	131
	Less: Accumulated depreciation		(50		)		(58		)		(75		)
	Net capital leases		$	75			$	76			$	56
	1	Included in Property, plant and equipment table above.
	2	Consists primarily of machinery and equipment.
	At December 31, 2013, scheduled minimum rental payments on assets recorded under capital leases were:
	(Millions of dollars)
	2014				2015				2016				2017			2018		Thereafter
	$	10			$	14			$	22			$	7		$	7	$	47
	Equipment leased to others (primarily by Cat Financial):
			December 31,
	(Millions of dollars)		2013				2012				2011
	Equipment leased to others–at original cost		$	5,365			$	4,658			$	4,285
	Less: Accumulated depreciation		(1,521		)		(1,383		)		(1,406		)
	Equipment leased to others–net		$	3,844			$	3,275			$	2,879
	At December 31, 2013, scheduled minimum rental payments to be received for equipment leased to others were:
	(Millions of dollars)
	2014				2015				2016				2017			2018		Thereafter
	$	916			$	626			$	379			$	191		$	95	$	45

Investments_in_unconsolidated_

Investments in unconsolidated affiliated companies	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Investments in unconsolidated affiliated companies	'
	Investments in unconsolidated affiliated companies
	Combined financial information of the unconsolidated affiliated companies accounted for by the equity method (generally on a lag of 3 months or less) was as follows:
	Results of Operations of unconsolidated affiliated companies:
		Years ended December 31,
	(Millions of dollars)	2013			2012		2011
	Results of Operations:
	Sales	$	1,336		$	1,084	$	966
	Cost of sales	1,048			872		797
	Gross profit	$	288		$	212	$	169
	Profit (loss)	$	(28	)	$	28	$	(46	)
	Financial Position of unconsolidated affiliated companies:
		December 31,
	(Millions of dollars)	2013			2012		2011
	Financial Position:
	Assets:
	Current assets	$	683		$	715	$	345
	Property, plant and equipment–net	710			529		200
	Other assets	608			616		9
		2,001			1,860		554
	Liabilities:
	Current liabilities	437			443		220
	Long-term debt due after one year	900			708		72
	Other liabilities	262			170		17
		1,599			1,321		309
	Equity	$	402		$	539	$	245
	Caterpillar’s investments in unconsolidated affiliated companies:
		December 31,
	(Millions of dollars)	2013			2012		2011
	Investments in equity method companies	$	262		$	256	$	111
	Plus: Investments in cost method companies	10			16		22
	Total investments in unconsolidated affiliated companies	$	272		$	272	$	133
	The increase in the 2012 financial position and equity investments amounts from 2011 relate to the sale of a majority interest in Caterpillar's third party logistics business, which occurred on July 31, 2012. Under the terms of the agreement, Caterpillar retained a 35 percent equity interest. The increase is also related to the acquisition of an equity interest in Black Horse LLC, which occurred on December 5, 2012.

Intangible_assets_and_goodwill

Intangible assets and goodwill	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangible assets and goodwill	'
	Intangible assets and goodwill
	A.	Intangible assets
	Intangible assets are comprised of the following:
					December 31, 2013
	(Millions of dollars)		Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,653			$	(539	)		$	2,114
	Intellectual property		11		1,821				(495		)		1,326
	Other		10		274				(136		)		138
	Total finite-lived intangible assets		13		4,748				(1,170		)		3,578
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,766			$	(1,170	)		$	3,596
					December 31, 2012
			Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,756			$	(377	)		$	2,379
	Intellectual property		12		1,767				(342		)		1,425
	Other		10		299				(105		)		194
	Total finite-lived intangible assets		13		4,822				(824		)		3,998
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,840			$	(824	)		$	4,016
					December 31, 2011
			Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,811			$	(213	)		$	2,598
	Intellectual property		11		1,794				(244		)		1,550
	Other		11		299				(97		)		202
	Total finite-lived intangible assets		13		4,904				(554		)		4,350
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,922			$	(554	)		$	4,368
	During 2013, we acquired finite-lived intangible assets aggregating $70 million due to the purchase of Johan Walter Berg AB (Berg). See Note 24 for details on this acquisition.
	Gross customer relationship intangibles of $168 million and related accumulated amortization of $25 million were reclassified from Intangible assets to assets held for sale and/or divested during 2013, and are not included in the December 31, 2013 balances in the table above. These transactions were related to the divestiture of portions of the Bucyrus distribution business. See Note 26 for additional information on divestitures and assets held for sale.
	During 2012, we acquired finite-lived intangible assets aggregating $120 million due to purchases of Siwei ($112 million) and Caterpillar Tohoku Ltd. (Cat Tohoku) ($8 million). See Note 24 for details on these acquisitions.
	Gross customer relationship intangibles of $207 million and related accumulated amortization of $93 million were reclassified from Intangible assets to held for sale and/or divested during 2012, and are not included in the December 31, 2012 balances in the table above. These transactions primarily related to the divestiture of portions of the Bucyrus distribution business and our third party logistics business. See Note 26 for additional information on divestitures and assets held for sale.
	Gross customer relationship intangibles of $51 million and related accumulated amortization of $29 million from the All Other segment were impaired during 2012. Fair value of the intangibles was determined using an income approach based on the present value of discounted cash flows. The impairment of $22 million was recognized in Other operating (income) expenses in Statement 1 and included in the All Other segment.
	During 2011, we acquired finite-lived intangible assets aggregating $4,167 million primarily due to purchases of Bucyrus International, Inc. (Bucyrus) ($3,901 million), Pyroban Group Ltd. (Pyroban) ($41 million) and MWM Holding GmbH (MWM) ($221 million).  See Note 24 for details on these acquisitions.
	As described in Note 26, we sold customer relationship intangibles of $63 million associated with the divestiture of a portion of the Bucyrus distribution business in December 2011.  Additionally, $186 million of customer relationship intangibles were classified as held for sale at December 31, 2011, and are not included in the table above.
	Finite-lived intangible assets are amortized over their estimated useful lives and tested for impairment if events or changes in circumstances indicate that the asset may be impaired.  Indefinite-lived intangible assets are tested for impairment at least annually.
	Amortization expense related to intangible assets was $371 million, $387 million and $233 million for 2013, 2012 and 2011, respectively.
	As of December 31, 2013, amortization expense related to intangible assets is expected to be:
	(Millions of dollars)
	2014				2015				2016				2017				2018				Thereafter
	$	365			$	354			$	333			$	331			$	327			$	1,886
	B.	Goodwill
	During 2013, we acquired net assets with related goodwill of $106 million due to the purchase of Berg. See Note 24 for details on this acquisition.
	As discussed in Note 24, we recorded goodwill of $625 million related to our May 2012 acquisition of Siwei. In November 2012, Caterpillar became aware of inventory accounting discrepancies at Siwei which led to an internal investigation. Caterpillar's investigation determined that Siwei had engaged in accounting misconduct prior to Caterpillar's acquisition of Siwei in mid-2012. The accounting misconduct included inappropriate accounting practices involving improper cost allocation that resulted in overstated profit and improper revenue recognition practices involving early and, at times unsupported, revenue recognition.
	Because of the accounting misconduct identified in the fourth quarter of 2012, Siwei's goodwill was tested for impairment as of November 30, 2012. We determined the carrying value of Siwei, which is a separate reporting unit, exceeded its fair value at the measurement date, requiring step two in the impairment test process.  The fair value of the Siwei reporting unit was determined primarily using an income approach based on the present value of discounted cash flows. We assigned the fair value to the reporting unit's assets and liabilities and determined the implied fair value of goodwill was substantially below the carrying value of the reporting unit's goodwill.  Accordingly, we recognized a $580 million goodwill impairment charge, which resulted in goodwill of $45 million remaining for Siwei as of December 31, 2012. The goodwill impairment was a result of changes in the assumptions used to determine the fair value resulting from the accounting misconduct that occurred before the acquisition. There was no tax benefit associated with this impairment charge. The Siwei goodwill impairment charge is reported in the Resource Industries segment.
	Additionally, during 2012, we recorded goodwill of $22 million related to the acquisition of Cat Tohoku and finalized the allocation of the Bucyrus and MWM purchase prices to identifiable assets and liabilities, adjusting goodwill from our December 31, 2011 preliminary allocation for Bucyrus and MWM by a reduction of $28 million and an increase of $9 million, respectively. See Note 24 for details on these acquisitions.
	During 2011, we acquired net assets with related goodwill aggregating $5,026 million primarily due to purchases of Bucyrus ($4,616 million), Pyroban ($23 million) and MWM ($387 million).  See Note 24 for details on these acquisitions.
	Goodwill of $65 million, $181 million and $409 million was reclassified to held for sale and/or divested during 2013, 2012 and 2011, respectively, and is not included in the December 31, 2013, 2012 and 2011 respective balances in the table below. The reclassified/divested amount in 2013 was related to the divestiture of portions of the Bucyrus distribution business and the sale of certain Power Systems assets that were accounted for as a business. The reclassified/divested amounts in 2012 and 2011 primarily related to the divestiture of portions of the Bucyrus distribution business. See Note 26 for additional information on divestitures and assets held for sale.
	The changes in carrying amount of goodwill by reportable segment for the years ended December 31, 2013, 2012 and 2011 were as follows:
	(Millions of dollars)		December 31, 2012				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2013
	Construction Industries
	Goodwill		$	382			$	—			$	—			$	—			$	(56	)		$	326
	Resource Industries
	Goodwill		4,559				—				(55		)		—				11				4,515
	Impairments		(602		)		—				—				—				—				(602		)
	Net goodwill		3,957				—				(55		)		—				11				3,913
	Power Systems
	Goodwill		2,486				106				(10		)		—				18				2,600
All Other 4
Goodwill		117				—				—				—				—				117
Consolidated total
Goodwill		7,544				106				(65		)		—				(27		)		7,558
Impairments		(602		)		—				—				—				—				(602		)
Net goodwill		$	6,942			$	106			$	(65	)		$	—			$	(27	)		$	6,956
		December 31, 2011				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2012
Construction Industries
Goodwill		$	378			$	22			$	—			$	—			$	(18	)		$	382
Resource Industries
Goodwill		4,121				597				(181		)		—				22				4,559
Impairments		(22		)		—				—				(580		)		—				(602		)
Net goodwill		4,099				597				(181		)		(580		)		22				3,957
Power Systems
Goodwill		2,486				9				—				—				(9		)		2,486
All Other 4
Goodwill		117				—				—				—				—				117
Consolidated total
Goodwill		7,102				628				(181		)		—				(5		)		7,544
Impairments		(22		)		—				—				(580		)		—				(602		)
Net goodwill		$	7,080			$	628			$	(181	)		$	(580	)		$	(5	)		$	6,942
		December 31, 2010				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2011
Construction Industries
Goodwill		$	357			$	—			$	—			$	—			$	21			$	378
Resource Industries
Goodwill		73				4,616				(397		)		—				(171		)		4,121
Impairments		(22		)		—				—				—				—				(22		)
Net goodwill		51				4,616				(397		)		—				(171		)		4,099
Power Systems
Goodwill		2,077				410				—				—				(1		)		2,486
All Other 4
Goodwill		129				—				(12		)		—				—				117
Consolidated total
Goodwill		2,636				5,026				(409		)		—				(151		)		7,102
Impairments		(22		)		—				—				—				—				(22		)
Net goodwill		$	2,614			$	5,026			$	(409	)		$	—			$	(151	)		$	7,080
1	See Note 24 for additional information.
2	See Note 26 for additional information.
3	Other adjustments are comprised primarily of foreign currency translation.
4	Includes All Other operating segment (See Note 23).

Availableforsale_securities

Available-for-sale securities	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Available-for-sale securities	'
	Available-for-sale securities
	We have investments in certain debt and equity securities, primarily at Insurance Services, that have been classified as available-for-sale and recorded at fair value based upon quoted market prices.  These investments are primarily included in Other assets in Statement 3.  Unrealized gains and losses arising from the revaluation of available-for-sale securities are included, net of applicable deferred income taxes, in equity (Accumulated other comprehensive income (loss) in Statement 3).  Realized gains and losses on sales of investments are generally determined using the FIFO (first-in, first-out) method for debt instruments and the specific identification method for equity securities.  Realized gains and losses are included in Other income (expense) in Statement 1.
			December 31, 2013							December 31, 2012							December 31, 2011
	(Millions of dollars)		Cost		Unrealized			Fair		Cost		Unrealized			Fair		Cost		Unrealized			Fair
			Basis		Pretax Net			Value		Basis		Pretax Net			Value		Basis		Pretax Net			Value
					Gains							Gains							Gains
					(Losses)							(Losses)							(Losses)
	Government debt
	U.S. treasury bonds		$	10	$	—		$	10	$	10	$	—		$	10	$	10	$	—		$	10
	Other U.S. and non-U.S. government bonds		119		1			120		144		2			146		90		2			92
	Corporate bonds
	Corporate bonds		612		21			633		626		38			664		542		30			572
	Asset-backed securities		72		—			72		96		—			96		112		(1		)	111
	Mortgage-backed debt securities
	U.S. governmental agency		322		(1		)	321		291		8			299		297		13			310
	Residential		18		—			18		26		(1		)	25		33		(3		)	30
	Commercial		87		6			93		117		10			127		142		3			145
	Equity securities
	Large capitalization value		173		81			254		147		38			185		127		21			148
	Smaller company growth		25		24			49		22		12			34		22		7			29
	Total		$	1,438	$	132		$	1,570	$	1,479	$	107		$	1,586	$	1,375	$	72		$	1,447
	During 2013, 2012 and 2011, charges for other-than-temporary declines in the market values of securities were $1 million, $2 million and $5 million, respectively.  These charges were accounted for as realized losses and were included in Other income (expense) in Statement 1.  The cost basis of the impacted securities was adjusted to reflect these charges.
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2013
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Corporate bonds		$	159	$	2		$	1	$	—	$	160		$	2
	Asset-backed securities		6		—			20		1		26			1
	Mortgage-backed debt securities
	U.S. governmental agency		140		4			65		2		205			6
	Total		$	305	$	6		$	86	$	3	$	391		$	9
	1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2012
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Asset-backed securities		$	—	$	—		$	20	$	3	$	20		$	3
	Mortgage-backed debt securities
	U.S. governmental agency		84		1			15		—		99			1
	Residential		—		—			14		1		14			1
	Equity securities
	Large capitalization value		25		2			10		1		35			3
	Total		$	109	$	3		$	59	$	5	$	168		$	8
	1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2011
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Corporate bonds		$	54	$	1		$	1	$	—	$	55		$	1
	Asset-backed securities		1		—			20		5		21			5
	Mortgage-backed debt securities
	U.S. governmental agency		51		1			—		—		51			1
	Residential		3		—			18		3		21			3
	Commercial		15		—			8		1		23			1
	Equity securities
	Large capitalization value		36		5			6		1		42			6
	Smaller company growth		4		1			—		—		4			1
Total		$	164	$	8		$	53	$	10	$	217		$	18
1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
Corporate Bonds.  The unrealized losses on our investments in corporate bonds and asset-backed securities relate to changes in interest rates and credit-related yield spreads since time of purchase.  We do not intend to sell the investments and it is not likely that we will be required to sell the investments before recovery of their amortized cost basis.  We do not consider these investments to be other-than-temporarily impaired as of December 31, 2013.
Mortgage-Backed Debt Securities.  The unrealized losses on our investments in mortgage-backed securities are a function of higher delinquencies, default rates and underlying market yields since time of purchase.  We do not intend to sell the investments and it is not likely that we will be required to sell these investments before recovery of their amortized cost basis.  We do not consider these investments to be other-than-temporarily impaired as of December 31, 2013.
The cost basis and fair value of the available-for-sale debt securities at December 31, 2013, by contractual maturity, is shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to prepay and creditors may have the right to call obligations.
		December 31, 2013
(Millions of dollars)		Cost Basis		Fair Value
Due in one year or less		$	187	$	188
Due after one year through five years		572		592
Due after five years through ten years		24		25
Due after ten years		30		30
U.S. governmental agency mortgage-backed securities		322		321
Residential mortgage-backed securities		18		18
Commercial mortgage-backed securities		87		93
Total debt securities – available-for-sale		$	1,240	$	1,267
Sales of Securities:
		Years Ended December 31,
(Millions of dollars)		2013		2012			2011
Proceeds from the sale of available-for-sale securities		$	449	$	306		$	247
Gross gains from the sale of available-for-sale securities		$	22	$	6		$	4
Gross losses from the sale of available-for-sale securities		$	2	$	—		$	1

Postemployment_benefit_plans

Postemployment benefit plans	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Postemployment benefit plans	'
	Postemployment benefit plans
	We provide defined benefit pension plans, defined contribution plans and/or other postretirement benefit plans (retirement health care and life insurance) to employees in many of our locations throughout the world. Our defined benefit pension plans provide a benefit based on years of service and/or the employee’s average earnings near retirement. Our defined contribution plans allow employees to contribute a portion of their salary to help save for retirement, and in certain cases, we provide a matching contribution. The benefit obligation related to our non-U.S. defined benefit pension plans are for employees located primarily in Europe, Japan and Brazil. For other postretirement benefits, substantially all of our benefit obligation is for employees located in the United States.
	In February 2012, we announced the closure of the Electro-Motive Diesel facility located in London, Ontario. As a result of the closure, we recognized a $37 million other postretirement benefits curtailment gain. This excludes a $21 million loss of a third-party receivable for other postretirement benefits that was eliminated due to the closure. In addition, a $10 million contractual termination benefit expense was recognized related to statutory pension benefits required to be paid to certain affected employees. As a result, a net gain of $6 million related to the facility closure was recognized in Other operating (income) expenses in Statement 1.
	In August 2012, we announced changes to our U.S. hourly pension plan, which impacted certain hourly employees. For the impacted employees, pension benefit accruals were frozen on January 1, 2013 or will freeze January 1, 2016, at which time employees will become eligible for various provisions of company sponsored 401(k) plans including a matching contribution and an annual employer contribution. The plan changes resulted in a curtailment and required a remeasurement as of August 31, 2012. The curtailment and the remeasurement resulted in a net increase in our Liability for postemployment benefits of $243 million and a net loss of $153 million, net of tax, recognized in Accumulated other comprehensive income (loss). The increase in the liability was primarily due to a decline in the discount rate. Also, the curtailment resulted in expense of $7 million which was recognized in Other operating (income) expenses in Statement 1.
	A.	Benefit obligations
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement
																					Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Change in benefit obligation:
	Benefit obligation, beginning of year		$	15,913		$	14,782		$	13,024		$	4,737		$	4,299		$	3,867		$	5,453		$	5,381		$	5,184
	Service cost		196			185			158			120			108			115			108			92			84
	Interest cost		581			609			651			166			182			182			195			221			253
	Plan amendments		—			—			1			—			12			(24		)	1			(38		)	(121		)
	Actuarial losses (gains)		(1,450		)	1,168			1,635			(41		)	385			312			(658		)	186			306
	Foreign currency exchange rates		—			—			—			(81		)	49			(32		)	(19		)	(11		)	(19		)
	Participant contributions		—			—			—			10			9			9			57			48			44
	Benefits paid - gross		(845		)	(831		)	(823		)	(254		)	(190		)	(187		)	(339		)	(394		)	(388		)
	Less: federal subsidy on benefits paid		—			—			—			—			—			—			8			16			14
	Curtailments, settlements and termination benefits		(7		)	—			(3		)	(56		)	(67		)	(83		)	—			(48		)	(6		)
	Acquisitions, divestitures and other 1		31			—			139			8			(50		)	140			(22		)	—			30
	Benefit obligation, end of year		$	14,419		$	15,913		$	14,782		$	4,609		$	4,737		$	4,299		$	4,784		$	5,453		$	5,381
	Accumulated benefit obligation, end of year		$	14,056		$	15,132		$	14,055		$	4,247		$	4,329		$	3,744
	Weighted-average assumptions used to determine benefit obligation:
	Discount rate 2		4.6		%	3.7		%	4.3		%	4.1		%	3.7		%	4.3		%	4.6		%	3.7		%	4.3		%
	Rate of compensation increase 2		4		%	4.5		%	4.5		%	4.2		%	3.9		%	3.9		%	4		%	4.4		%	4.4		%
	1	In 2013, charge to recognize a previously unrecorded liability related to a subsidiary's pension plans and an adjustment to other postretirement benefits related to certain other benefits. See Note 26 regarding the divestiture of the third party logistics business in 2012 and Note 24 for the acquisition of Bucyrus International in 2011.
	2	End of year rates are used to determine net periodic cost for the subsequent year. See Note 12E.
	Assumed health care cost trend rates have a significant effect on the amounts reported for the health care plans. A one-percentage-point change in assumed health care cost trend rates would have the following effects:
	(Millions of dollars)		One-percentage-			One-percentage-
			point increase			point decrease
	Effect on 2013 service and interest cost components of other postretirement benefit cost		$	26		$	(22	)
	Effect on accumulated postretirement benefit obligation		$	274		$	(230	)
	B.	Plan assets
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement
																					Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Change in plan assets:
	Fair value of plan assets, beginning of year		$	10,981		$	9,997		$	10,760		$	3,426		$	2,818		$	2,880		$	789		$	814		$	996
	Actual return on plan assets		1,722			1,235			(270		)	535			368			(83		)	158			117			(45		)
	Foreign currency exchange rates		—			—			—			(41		)	47			(1		)	—			—			—
	Company contributions		541			580			212			303			446			234			157			204			207
	Participant contributions		—			—			—			10			9			9			57			48			44
	Benefits paid		(845		)	(831		)	(823		)	(254		)	(190		)	(187		)	(339		)	(394		)	(388		)
	Settlements and termination benefits		(4		)	—			—			(30		)	(72		)	(41		)	—			—			—
	Acquisitions / other 1		—			—			118			—			—			7			—			—			—
	Fair value of plan assets, end of year		$	12,395		$	10,981		$	9,997		$	3,949		$	3,426		$	2,818		$	822		$	789		$	814
	1	See Note 24 regarding Bucyrus International in 2011.
	Our current U.S. pension target asset allocations are 60 percent equities and 40 percent fixed income.  Our strategy includes further aligning our investments to our liabilities, while reducing risk in our portfolio. Target allocation policies will be revisited periodically to ensure they reflect the overall objectives of the fund.
	In general, our non-U.S. pension target asset allocations reflect our investment strategy of maximizing the long-term rate of return on plan assets and the resulting funded status, within an appropriate level of risk.  The weighted-average target allocations for the non-U.S. pension plans are 59 percent equities, 32 percent fixed income, 7 percent real estate and 2 percent other.  The target allocations for each plan vary based upon local statutory requirements, demographics of plan participants and funded status.  Plan assets are primarily invested in non-U.S. securities.
	Our target allocations for the other postretirement benefit plans are 70 percent equities and 30 percent fixed income.
	The U.S. plans are rebalanced to plus or minus 5 percentage points of the target asset allocation ranges on a monthly basis.  The frequency of rebalancing for the non-U.S. plans varies depending on the plan. As a result of our diversification strategies, there are no significant concentrations of risk within the portfolio of investments except for the holdings in Caterpillar stock as discussed below.
	The use of certain derivative instruments is permitted where appropriate and necessary for achieving overall investment policy objectives.  The plans do not engage in derivative contracts for speculative purposes.
	The accounting guidance on fair value measurements specifies a fair value hierarchy based upon the observability of inputs used in valuation techniques (Level 1, 2 and 3).  See Note 18 for a discussion of the fair value hierarchy.
	Fair values are determined as follows:
	•	Equity securities are primarily based on valuations for identical instruments in active markets.
	•	Fixed income securities are primarily based upon models that take into consideration such market-based factors as recent sales, risk-free yield curves and prices of similarly rated bonds.
	•	Real estate is stated at the fund’s net asset value or at appraised value.
	•	Cash, short-term instruments and other are based on the carrying amount, which approximates fair value, or the fund’s net asset value.
	The fair value of the pension and other postretirement benefit plan assets by category is summarized below:
			December 31, 2013
	(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
												at Fair Value
	U.S. Pension
Equity securities:
U.S. equities		$	4,337		$	—		$	129		$	4,466
Non-U.S. equities		3,058			—			—			3,058
Fixed income securities:
U.S. corporate bonds		—			2,123			34			2,157
Non-U.S. corporate bonds		—			327			20			347
U.S. government bonds		—			774			—			774
U.S. governmental agency mortgage-backed securities		—			905			—			905
Non-U.S. government bonds		—			52			—			52
Real estate		—			—			8			8
Cash, short-term instruments and other		22			606			—			628
Total U.S. pension assets		$	7,417		$	4,787		$	191		$	12,395
		December 31, 2012
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
U.S. Pension
Equity securities:
U.S. equities		$	4,460		$	3		$	98		$	4,561
Non-U.S. equities		2,691			2			—			2,693
Fixed income securities:
U.S. corporate bonds		—			1,490			23			1,513
Non-U.S. corporate bonds		—			231			10			241
U.S. government bonds		—			694			8			702
U.S. governmental agency mortgage-backed securities		—			794			1			795
Non-U.S. government bonds		—			33			3			36
Real estate		—			—			8			8
Cash, short-term instruments and other		13			419			—			432
Total U.S. pension assets		$	7,164		$	3,666		$	151		$	10,981
		December 31, 2011
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
U.S. Pension
Equity securities:
U.S. equities		$	4,314		$	—		$	77		$	4,391
Non-U.S. equities		2,366			—			—			2,366
Fixed income securities:
U.S. corporate bonds		—			1,178			35			1,213
Non-U.S. corporate bonds		—			143			6			149
U.S. government bonds		—			462			7			469
U.S. governmental agency mortgage-backed securities		—			891			3			894
Non-U.S. government bonds		—			31			—			31
Real estate		—			—			8			8
Cash, short-term instruments and other		48			428			—			476
Total U.S. pension assets		$	6,728		$	3,133		$	136		$	9,997
		December 31, 2013
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Non-U.S. Pension
Equity securities:
U.S. equities		$	607		$	1		$	—		$	608
Non-U.S. equities		1,022			160			—			1,182
Global equities 1		235			54			—			289
Fixed income securities:
U.S. corporate bonds		—			84			9			93
Non-U.S. corporate bonds		—			534			12			546
U.S. government bonds		—			3			—			3
Non-U.S. government bonds		—			418			—			418
Global fixed income 1		—			397			—			397
Real estate		—			136			111			247
Cash, short-term instruments and other 2		141			25			—			166
Total non-U.S. pension assets		$	2,005		$	1,812		$	132		$	3,949
		December 31, 2012
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Non-U.S. Pension
Equity securities:
U.S. equities		$	436		$	2		$	—		$	438
Non-U.S. equities		1,038			118			—			1,156
Global equities 1		244			27			—			271
Fixed income securities:
U.S. corporate bonds		—			37			3			40
Non-U.S. corporate bonds		—			494			2			496
U.S. government bonds		—			3			—			3
Non-U.S. government bonds		—			169			—			169
Global fixed income 1		—			403			—			403
Real estate		—			114			104			218
Cash, short-term instruments and other 2		185			47			—			232
Total non-U.S. pension assets		$	1,903		$	1,414		$	109		$	3,426
		December 31, 2011
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Non-U.S. Pension
Equity securities:
U.S. equities		$	356		$	1		$	—		$	357
Non-U.S. equities		822			84			—			906
Global equities 1		198			40			—			238
Fixed income securities:
U.S. corporate bonds		—			16			4			20
Non-U.S. corporate bonds		—			395			5			400
U.S. government bonds		—			3			—			3
Non-U.S. government bonds		—			200			—			200
Global fixed income 1		—			363			—			363
Real estate		—			100			97			197
Cash, short-term instruments and other 2		109			25			—			134
Total non-U.S. pension assets		$	1,485		$	1,227		$	106		$	2,818
1	Includes funds that invest in both U.S. and non-U.S. securities.
2	Includes funds that invest in multiple asset classes, hedge funds and other.
		December 31, 2013
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	388		$	—		$	—		$	388
Non-U.S. equities		189			—			—			189
Fixed income securities:
U.S. corporate bonds		—			101			—			101
Non-U.S. corporate bonds		—			17			—			17
U.S. government bonds		—			23			—			23
U.S. governmental agency mortgage-backed securities		—			49			—			49
Non-U.S. government bonds		—			2			—			2
Cash, short-term instruments and other		8			45			—			53
Total other postretirement benefit assets		$	585		$	237		$	—		$	822
		December 31, 2012
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	387		$	—		$	—		$	387
Non-U.S. equities		194			—			—			194
Fixed income securities:
U.S. corporate bonds		—			70			—			70
Non-U.S. corporate bonds		—			11			—			11
U.S. government bonds		—			27			—			27
U.S. governmental agency mortgage-backed securities		—			33			—			33
Non-U.S. government bonds		—			2			—			2
Cash, short-term instruments and other		18			47			—			65
Total other postretirement benefit assets		$	599		$	190		$	—		$	789
		December 31, 2011
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	410		$	—		$	—		$	410
Non-U.S. equities		191			—			—			191
Fixed income securities:
U.S. corporate bonds		—			67			—			67
Non-U.S. corporate bonds		—			8			—			8
U.S. government bonds		—			21			—			21
U.S. governmental agency mortgage-backed securities		—			47			—			47
Non-U.S. government bonds		—			1			—			1
Cash, short-term instruments and other		4			65			—			69
Total other postretirement benefit assets		$	605		$	209		$	—		$	814
Below are roll-forwards of assets measured at fair value using Level 3 inputs for the years ended December 31, 2013, 2012 and 2011.  These instruments were valued using pricing models that, in management’s judgment, reflect the assumptions a market participant would use.
(Millions of dollars)		Equities			Fixed Income			Real Estate			Other
U.S. Pension
Balance at December 31, 2010		$	50		$	48		$	10		$	—
Unrealized gains (losses)		(4		)	(2		)	(2		)	—
Realized gains (losses)		1			—			—			—
Purchases, issuances and settlements, net		30			17			—			—
Transfers in and/or out of Level 3		—			(12		)	—			—
Balance at December 31, 2011		$	77		$	51		$	8		$	—
Unrealized gains (losses)		(4		)	—			—			(1		)
Realized gains (losses)		4			2			—			—
Purchases, issuances and settlements, net		21			(4		)	—			1
Transfers in and/or out of Level 3		—			(4		)	—			—
Balance at December 31, 2012		$	98		$	45		$	8		$	—
Unrealized gains (losses)		10			(1		)	—			—
Realized gains (losses)		4			—			—			—
Purchases, issuances and settlements, net		17			12			—			—
Transfers in and/or out of Level 3		—			(2		)	—			—
Balance at December 31, 2013		$	129		$	54		$	8		$	—
Non-U.S. Pension
Balance at December 31, 2010		$	1		$	8		$	90		$	35
Unrealized gains (losses)		—			1			7			—
Realized gains (losses)		—			—			—			3
Purchases, issuances and settlements, net		(1		)	—			—			(38		)
Transfers in and/or out of Level 3		—			—			—			—
Balance at December 31, 2011		$	—		$	9		$	97		$	—
Unrealized gains (losses)		—			—			8			—
Realized gains (losses)		—			—			—			—
Purchases, issuances and settlements, net		—			(1		)	(1		)	—
Transfers in and/or out of Level 3		—			(3		)	—			—
Balance at December 31, 2012		$	—		$	5		$	104		$	—
Unrealized gains (losses)		—			—			7			—
Realized gains (losses)		—			—			—			—
Purchases, issuances and settlements, net		—			16			—			—
Transfers in and/or out of Level 3		—			—			—			—
Balance at December 31, 2013		$	—		$	21		$	111		$	—
Equity securities within plan assets include Caterpillar Inc. common stock in the amounts of:
		U.S. Pension Benefits 1									Non-U.S. Pension Benefits									Other Postretirement
																				Benefits
(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
Caterpillar Inc. common stock		$	495		$	597		$	653		$	—		$	1		$	1		$	—		$	1		$	1
1	Amounts represent 4 percent, 5 percent and 7 percent of total plan assets for 2013, 2012 and 2011, respectively.
C.	Funded status
The funded status of the plans, reconciled to the amount reported on Statement 3, is as follows:
		U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement Benefits
(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
End of Year
Fair value of plan assets		$	12,395		$	10,981		$	9,997		$	3,949		$	3,426		$	2,818		$	822		$	789		$	814
Benefit obligations		14,419			15,913			14,782			4,609			4,737			4,299			4,784			5,453			5,381
Over (under) funded status recognized in financial position		$	(2,024	)	$	(4,932	)	$	(4,785	)	$	(660	)	$	(1,311	)	$	(1,481	)	$	(3,962	)	$	(4,664	)	$	(4,567	)
Components of net amount recognized in financial position:
Other assets (non-current asset)		$	5		$	—		$	—		$	123		$	30		$	3		$	—		$	—		$	—
Accrued wages, salaries and employee benefits (current liability)		(26		)	(23		)	(21		)	(29		)	(27		)	(26		)	(169		)	(169		)	(171		)
Liability for postemployment benefits (non-current liability)		(2,003		)	(4,909		)	(4,764		)	(754		)	(1,314		)	(1,458		)	(3,793		)	(4,495		)	(4,396		)
Net liability recognized		$	(2,024	)	$	(4,932	)	$	(4,785	)	$	(660	)	$	(1,311	)	$	(1,481	)	$	(3,962	)	$	(4,664	)	$	(4,567	)
Amounts recognized in Accumulated other comprehensive income (pre-tax) consist of:
Net actuarial loss (gain)		$	4,396		$	7,286		$	7,044		$	1,373		$	1,907		$	1,712		$	662		$	1,528		$	1,495
Prior service cost (credit)		19			36			63			13			22			15			(84		)	(159		)	(188		)
Transition obligation (asset)		—			—			—			—			—			—			—			3			5
Total		$	4,415		$	7,322		$	7,107		$	1,386		$	1,929		$	1,727		$	578		$	1,372		$	1,312
The estimated amounts that will be amortized from Accumulated other comprehensive income (loss) at December 31, 2013 into net periodic benefit cost (pre-tax) in 2014 are as follows:
(Millions of dollars)		U.S.			Non-U.S.			Other
		Pension Benefits			Pension Benefits			Postretirement
								Benefits
Net actuarial loss (gain)		$	392		$	86		$	41
Prior service cost (credit)		17			1			(54		)
Transition obligation (asset)		—			—			—
Total		$	409		$	87		$	(13	)
The following amounts relate to our pension plans with projected benefit obligations in excess of plan assets:
		U.S. Pension Benefits at Year-end									Non-U.S. Pension Benefits at Year-end
(Millions of dollars)		2013			2012			2011			2013			2012			2011
Projected benefit obligation		$	14,352		$	15,913		$	14,782		$	4,177		$	4,310		$	4,293
Accumulated benefit obligation		$	13,989		$	15,132		$	14,055		$	3,820		$	3,903		$	3,738
Fair value of plan assets		$	12,323		$	10,981		$	9,997		$	3,394		$	2,969		$	2,809
The following amounts relate to our pension plans with accumulated benefit obligations in excess of plan assets:
		U.S. Pension Benefits at Year-end									Non-U.S. Pension Benefits at Year-end
(Millions of dollars)		2013			2012			2011			2013			2012			2011
Projected benefit obligation		$	14,352		$	15,913		$	14,782		$	1,436		$	4,107		$	4,112
Accumulated benefit obligation		$	13,989		$	15,132		$	14,055		$	1,374		$	3,752		$	3,600
Fair value of plan assets		$	12,323		$	10,981		$	9,997		$	797		$	2,806		$	2,661
The accumulated postretirement benefit obligation exceeds plan assets for all of our other postretirement benefit plans for all years presented.
D.	Expected cash flow
Information about the expected cash flow for the pension and other postretirement benefit plans is as follows:
(Millions of dollars)		U.S.			Non-U.S.			Other
		Pension Benefits			Pension Benefits			Postretirement
								Benefits
Employer contributions:
2014 (expected)		$	240		$	270		$	210
Expected benefit payments:
2014		$	890		$	250		$	340
2015		900			210			350
2016		910			220			350
2017		930			220			360
2018		940			220			360
2019-2023		4,810			1,200			1,850
Total		$	9,380		$	2,320		$	3,610
The above table reflects the total employer contributions and benefits expected to be paid from the plan or from company assets and does not include the participants’ share of the cost. The expected benefit payments for our other postretirement benefits include payments for prescription drug benefits. Medicare Part D subsidy amounts expected to be received by the company which will offset other postretirement benefit payments are as follows:
(Millions of dollars)		2014			2015			2016			2017			2018			2019-2023			Total
Other postretirement benefits		$	20		$	20		$	20		$	20		$	20		$	115		$	215
E.	Net periodic cost
		U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement Benefits
(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
Components of net periodic benefit cost:
Service cost		$	196		$	185		$	158		$	120		$	108		$	115		$	108		$	92		$	84
Interest cost		581			609			651			166			182			182			195			221			253
Expected return on plan assets 1		(832		)	(812		)	(798		)	(225		)	(215		)	(210		)	(56		)	(63		)	(70		)
Other adjustments 2		31			—			—			—			—			—			(22		)	—			—
Curtailments, settlements and termination benefits 3		—			7			—			2			38			19			—			(40		)	—
Amortization of:
Transition obligation (asset)		—			—			—			—			—			—			2			2			2
Prior service cost (credit) 4		18			19			20			1			1			3			(73		)	(68		)	(55		)
Net actuarial loss (gain) 5		546			504			451			128			97			74			107			100			108
Total cost included in operating profit		$	540		$	512		$	482		$	192		$	211		$	183		$	261		$	244		$	322
Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax):
Current year actuarial loss (gain)		$	(2,344	)	$	745		$	2,700		$	(406	)	$	225		$	526		$	(759	)	$	133		$	408
Amortization of actuarial (loss) gain		(546		)	(504		)	(451		)	(128		)	(97		)	(72		)	(107		)	(100		)	(108		)
Current year prior service cost (credit)		—			(7		)	—			(7		)	10			(25		)	2			(38		)	(121		)
Amortization of prior service (cost) credit		(18		)	(19		)	(20		)	(1		)	(1		)	(3		)	73			68			55
Amortization of transition (obligation) asset		—			—			—			—			—			—			(2		)	(2		)	(2		)
Total recognized in other comprehensive income		(2,908		)	215			2,229			(542		)	137			426			(793		)	61			232
Total recognized in net periodic cost and other comprehensive income		$	(2,368	)	$	727		$	2,711		$	(350	)	$	348		$	609		$	(532	)	$	305		$	554
Weighted-average assumptions used to determine net cost:
Discount rate		3.7		%	4.3		%	5.1		%	3.7		%	4.3		%	4.6		%	3.7		%	4.3		%	5		%
Expected rate of return on plan assets 6		7.8		%	8		%	8.5		%	6.8		%	7.1		%	7.1		%	7.8		%	8		%	8.5		%
Rate of compensation increase		4.5		%	4.5		%	4.5		%	3.9		%	3.9		%	4.1		%	4.4		%	4.4		%	4.4		%
1	Expected return on plan assets developed using calculated market-related value of plan assets which recognizes differences in expected and actual returns over a three-year period.
2	Charge to recognize a previously unrecorded liability related to a subsidiary's pension plans and an adjustment to other postretirement benefits related to certain other benefits.
3	Curtailments, settlements and termination benefits were recognized in Other operating (income) expenses in Statement 1.
4	Prior service cost (credit) for both pension and other postretirement benefits are generally amortized using the straight-line method over the average remaining service period of active employees expected to receive benefits from the plan. For pension plans in which all or almost all of the plan's participants are inactive and other postretirement benefit plans in which all or almost all of the plan's participants are fully eligible for benefits under the plan, prior service cost (credit) are amortized using the straight-line method over the remaining life expectancy of those participants.
5	Net actuarial loss (gain) for pension and other postretirement benefit plans are generally amortized using the straight-line method over the average remaining service period of active employees expected to receive benefits from the plan. For plans in which all or almost all of the plan’s participants are inactive, net actuarial loss (gain) are amortized using the straight-line method over the remaining life expectancy of the inactive participants.
6	The weighted-average rates for 2014 are 7.8 percent and 6.9 percent for U.S. and non-U.S. pension plans, respectively.
The assumed discount rate is used to discount future benefit obligations back to today’s dollars.  The U.S. discount rate is based on a benefit cash flow-matching approach and represents the rate at which our benefit obligations could effectively be settled as of our measurement date, December 31.  The benefit cash flow-matching approach involves analyzing Caterpillar’s projected cash flows against a high quality bond yield curve, calculated using a wide population of corporate Aa bonds available on the measurement date.  The very highest and lowest yielding bonds (top and bottom 10 percent) are excluded from the analysis.  A similar process is used to determine the assumed discount rate for our most significant non-U.S. plans. This rate is sensitive to changes in interest rates. A decrease in the discount rate would increase our obligation and future expense.
Our U.S. expected long-term rate of return on plan assets is based on our estimate of long-term passive returns for equities and fixed income securities weighted by the allocation of our pension assets. Based on historical performance, we increase the passive returns due to our active management of the plan assets. To arrive at our expected long-term return, the amount added for active management was 1 percent for 2013, 2012 and 2011.  A similar process is used to determine this rate for our non-U.S. plans.
The assumed health care trend rate represents the rate at which health care costs are assumed to increase. We assumed a weighted-average increase of 7.1 percent in our calculation of 2013 benefit expense.  We expect a weighted-average increase of 6.6 percent during 2014.  The 2013 and 2014 rates are assumed to decrease gradually to the ultimate health care trend rate of 5 percent in 2019. This rate represents 3 percent general inflation plus 2 percent additional health care inflation.
F.	Other postemployment benefit plans
We offer long-term disability benefits, continued health care for disabled employees, survivor income benefit insurance and supplemental unemployment benefits to substantially all U.S. employees.
G.	Defined contribution plans
We have both U.S. and non-U.S. employee defined contribution plans to help employees save for retirement. Our primary U.S. 401(k) plan allows eligible employees to contribute a portion of their cash compensation to the plan on a tax-deferred basis. Employees with frozen defined benefit pension accruals are eligible for matching contributions equal to 100 percent of employee contributions to the plan up to 6 percent of cash compensation and an annual employer contribution that ranges from 3 to 5 percent of cash compensation (depending on years of service and age). Employees that are still accruing benefits under a defined benefit pension plan are eligible for matching contributions equal to 50 percent of employee contributions up to 6 percent of cash compensation. Various other U.S. and non-U.S. defined contribution plans allow eligible employees to contribute a portion of their salary to the plans, and in some cases, we provide a matching contribution to the funds.
Total company costs related to U.S. and non-U.S. defined contribution plans were as follows:
(Millions of dollars)		2013			2012			2011
U.S. plans		$	308		$	260		$	219
Non-U.S. plans		64			60			54
		$	372		$	320		$	273
H.	Summary of long-term liability:
		December 31,
(Millions of dollars)		2013			2012			2011
Pensions:
U.S. pensions		$	2,003		$	4,909		$	4,764
Non-U.S. pensions		754			1,314			1,458
Total pensions		2,757			6,223			6,222
Postretirement benefits other than pensions		3,793			4,495			4,396
Other postemployment benefits		99			81			73
Defined contribution		324			286			265
		$	6,973		$	11,085		$	10,956

Shortterm_borrowings

Short-term borrowings	12 Months Ended
	Dec. 31, 2013
Short-term Borrowings Disclosure [Abstract]	'
Short-term borrowings	'
	Short-term borrowings
		December 31,
	(Millions of dollars)	2013			2012				2011
	Machinery and Power Systems:
	Notes payable to banks	$	16		$	484			$	93
	Notes payable to certain former shareholders of Siwei	—			152				—
	Commercial paper	—			—				—
		16			636				93
	Financial Products:
	Notes payable to banks	545			418				527
	Commercial paper	2,502			3,654				2,818
	Demand notes	616			579				550
		3,663			4,651				3,895
	Total short-term borrowings	$	3,679		$	5,287			$	3,988
	The weighted-average interest rates on short-term borrowings outstanding were:
		December 31,
		2013		2012			2011
	Notes payable to banks	6.3	%	5.8	%		7.2	%
	Commercial paper	0.5	%	0.6	%		1	%
	Demand notes	0.8	%	0.8	%		0.9	%
	The notes payable to certain former shareholders of Siwei did not bear interest and were settled during the second quarter of 2013. Please refer to Note 26 for more information. Please refer to Note 18 and Table III for fair value information on short-term borrowings.

Longterm_debt

Long-term debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-term debt	'
	Long-term debt
			December 31,
	(Millions of dollars)		2013		2012		2011
	Machinery and Power Systems:
	Notes—Floating Rate (Three-month USD LIBOR plus 0.17%) due 2013		$	—	$	—	$	750
	Notes—1.375% due 2014		—		750		750
	Notes—5.700% due 2016		506		508		510
	Notes—3.900% due 2021		1,246		1,245		1,245
	Notes—5.200% due 2041		757		757		1,247
	Debentures—7.000% due 2013		—		—		350
	Debentures—0.950% due 2015		500		500		—
	Debentures—1.500% due 2017		500		499		—
	Debentures—7.900% due 2018		899		899		899
	Debentures—9.375% due 2021		120		120		120
	Debentures—2.600% due 2022		498		498		—
	Debentures—8.000% due 2023		82		82		82
	Debentures—6.625% due 2028		193		193		299
	Debentures—7.300% due 2031		241		241		349
	Debentures—5.300% due 2035 1		209		208		206
	Debentures—6.050% due 2036		459		459		748
	Debentures—8.250% due 2038		65		65		248
	Debentures—6.950% due 2042		160		160		250
	Debentures—3.803% due 2042 2		1,168		1,149		—
	Debentures—7.375% due 2097		244		244		297
	Capital lease obligations		97		73		46
	Other		55		16		19
	Total Machinery and Power Systems		7,999		8,666		8,415
	Financial Products:
	Medium-term notes		17,856		18,036		15,701
	Other		864		1,050		828
	Total Financial Products		18,720		19,086		16,529
	Total long-term debt due after one year		$	26,719	$	27,752	$	24,944
	1	Debentures due in 2035 have a face value of $307 million and an effective yield to maturity of 8.69%.
	2	Debentures due in 2042 have a face value of $1,722 million and an effective yield to maturity of 6.33%.
	All outstanding notes and debentures are unsecured and rank equally with one another.
	On June 26, 2012 we issued $500 million of 0.950% Senior Notes due 2015, $500 million of 1.500% Senior Notes due 2017, and $500 million of 2.600% Senior Notes due 2022.
	On August 15, 2012 and August 27, 2012, we exchanged $1.72 billion of newly issued 3.803% Debentures due 2042 and $179 million of cash for $1.33 billion of several series of our outstanding debentures of varying interest rates and maturity dates. This exchange met the requirements to be accounted for as a debt modification.
	On May 24, 2011, we issued $750 million of Floating Rate Senior Notes (Three-month USD LIBOR plus 0.17%) due in 2013. The interest rates for the Floating Rate Senior Notes will be reset quarterly. We also issued $750 million of 1.375% Senior Notes due in 2014, $1.25 billion of 3.900% Senior Notes due in 2021, and $1.25 billion of 5.200% Senior Notes due in 2041.
	We may redeem the 1.375%, 5.700%, 3.900% and 5.200% notes and the 6.625%, 7.300%, 5.300%, 6.050%, 6.950% and 7.375% debentures in whole or in part at our option at any time at a redemption price equal to the greater of 100% of the principal amount or the sum of the present value of the remaining scheduled payments of principal and interest of the notes or debentures to be redeemed. We may redeem some or all of the 0.950% debentures and the 1.500% debentures at our option at any time, and some or all of the 2.600% debentures at any time prior to March 26, 2022 (three months prior to the maturity date of the 2022 debentures), in each case at a redemption price equal to the greater of 100% of the principal amount of the notes being redeemed or at the discounted present value of the notes, calculated in accordance with the terms of the relevant notes. We may redeem some or all of the 3.803% debentures at any time at a redemption price equal to the greater of 100% of the principal amount of the debentures being redeemed or at a make-whole price calculated in accordance with the terms of the debentures. The terms of other notes and debentures do not specify a redemption option prior to maturity.
	Cat Financial's medium term notes are offered by prospectus and are issued through agents at fixed and floating rates. These notes have a weighted average interest rate of 2.8% with remaining maturities up to 12 years at December 31, 2013.
	The aggregate amounts of maturities of long-term debt during each of the years 2014 through 2018, including amounts due within one year and classified as current, are:
			December 31,
	(Millions of dollars)		2014		2015		2016		2017		2018
	Machinery and Power Systems		$	760	$	514	$	538	$	507	$	906
	Financial Products		6,592		6,446		4,796		2,747		2,350
			$	7,352	$	6,960	$	5,334	$	3,254	$	3,256
	Interest paid on short-term and long-term borrowings for 2013, 2012 and 2011 was $1,141 million, $1,404 million and $1,208 million, respectively.
	Please refer to Note 18 and Table III for fair value information on long-term debt.

Credit_commitments

Credit commitments	12 Months Ended
	Dec. 31, 2013
Credit Commitments [Abstract]	'
Credit commitments	'
	Credit commitments
			December 31, 2013
	(Millions of dollars)		Consolidated			Machinery			Financial
						and Power			Products
						Systems
	Credit lines available:
	Global credit facilities		$	10,000		$	2,750		$	7,250
	Other external		4,508			229			4,279
	Total credit lines available		14,508			2,979			11,529
	Less: Commercial paper outstanding		(2,502		)	—			(2,502		)
	Less: Utilized credit		(2,044		)	(16		)	(2,028		)
	Available credit		$	9,962		$	2,963		$	6,999
	We have three global credit facilities with a syndicate of banks totaling $10.00 billion (Credit Facility) available in the aggregate to both Caterpillar and Cat Financial for general liquidity purposes.  Based on management's allocation decision, which can be revised from time to time, the portion of the Credit Facility available to Machinery and Power Systems as of December 31, 2013 was $2.75 billion. Our three Global Credit Facilities are:
	•	The 364-day facility of $3.00 billion (of which $0.82 billion is available to Machinery and Power Systems) expires in September 2014.
	•	The 2010 four-year facility, as amended in September 2013, of $2.60 billion (of which $0.72 billion is available to Machinery and Power Systems) expires in September 2016.
	•	The 2011 five-year facility, as amended in September 2013, of $4.40 billion (of which $1.21 billion is available to Machinery and Power Systems) expires in September 2018.
	Other consolidated credit lines with banks as of December 31, 2013 totaled $4.51 billion. These committed and uncommitted credit lines, which may be eligible for renewal at various future dates or have no specified expiration date, are used primarily by our subsidiaries for local funding requirements.  Caterpillar or Cat Financial may guarantee subsidiary borrowings under these lines.
	At December 31, 2013, Caterpillar's consolidated net worth was $25.03 billion, which was above the $9.00 billion required under the Credit Facility.  The consolidated net worth is defined as the consolidated stockholder's equity including preferred stock but excluding the pension and other postretirement benefits balance within Accumulated other comprehensive income (loss).
	At December 31, 2013, Cat Financial's covenant interest coverage ratio was 1.96 to 1.  This is above the 1.15 to 1 minimum ratio, calculated as (1) profit excluding income taxes, interest expense and net gain/(loss) from interest rate derivatives to (2) interest expense calculated at the end of each calendar quarter for the rolling four quarter period then most recently ended, required by the Credit Facility.
	In addition, at December 31, 2013, Cat Financial's six-month covenant leverage ratio was 8.14 to 1 and year-end covenant leverage ratio was 7.99 to 1.  This is below the maximum ratio of debt to net worth of 10 to 1, calculated (1) on a monthly basis as the average of the leverage ratios determined on the last day of each of the six preceding calendar months and (2) at each December 31, required by the Credit Facility.
	In the event Caterpillar or Cat Financial does not meet one or more of their respective financial covenants under the Credit Facility in the future (and are unable to obtain a consent or waiver), the syndicate of banks may terminate the commitments allocated to the party that does not meet its covenants.  Additionally, in such event, certain of Cat Financial's other lenders under other loan agreements where similar financial covenants or cross default provisions are applicable, may, at their election, choose to pursue remedies under those loan agreements, including accelerating the repayment of outstanding borrowings.  At December 31, 2013, there were no borrowings under the Credit Facility.

Profit_per_share

Profit per share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Profit per share	'
	Profit per share
	Computations of profit per share:
	(Dollars in millions except per share data)		2013		2012		2011
	Profit for the period (A) 1		$	3,789	$	5,681	$	4,928
	Determination of shares (in millions):
	Weighted average number of common shares outstanding (B)		645.2		652.6		645
	Shares issuable on exercise of stock awards, net of shares assumed to be purchased out of proceeds at average market price		13.4		17		21.1
	Average common shares outstanding for fully diluted computation (C) 2		658.6		669.6		666.1
	Profit per share of common stock:
	Assuming no dilution (A/B)		$	5.87	$	8.71	$	7.64
	Assuming full dilution (A/C) 2		$	5.75	$	8.48	$	7.4
	Shares outstanding as of December 31 (in millions)		637.8		655		647.5
	1	Profit attributable to common stockholders.
	2	Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.
	SARs and stock options to purchase 10,152,448, 6,066,777 and 2,902,533 common shares were outstanding in 2013, 2012 and 2011, respectively, but were not included in the computation of diluted earnings per share because the effect would have been antidilutive.
	In February 2007, the Board of Directors authorized the repurchase of $7.5 billion of Caterpillar stock, and in December 2011, the authorization was extended through December 31, 2015. In April 2013, we entered into a definitive agreement with Citibank, N.A. to purchase shares of our common stock under an accelerated stock repurchase transaction (April ASR Agreement), which was completed in June 2013. In accordance with the terms of the April ASR Agreement, a total of 11.5 million shares of our common stock were repurchased at an aggregate cost to Caterpillar of $1.0 billion.
	In July 2013, we entered into a definitive agreement with Société Générale to purchase shares of our common stock under an accelerated stock repurchase transaction (July ASR Agreement), which was completed in September 2013. In accordance with the terms of the July ASR Agreement, a total of 11.9 million shares of our common stock were repurchased at an aggregate cost to Caterpillar of $1.0 billion.
	In January 2014, we completed the current $7.5 billion stock repurchase program as we entered into a definitive agreement with Citibank, N.A. to purchase shares of our common stock under an accelerated stock repurchase transaction (January ASR Agreement). Pursuant to the terms of the January ASR Agreement, we have agreed to repurchase approximately $1.7 billion of our common stock from Citibank, N.A., with an immediate delivery of approximately 17.7 million shares. The final number of shares to be repurchased and the aggregate cost to Caterpillar will be based on Caterpillar's volume-weighted average stock price during the term of the transaction, which is expected to be completed in March 2014.
	In addition, in January 2014, the Board authorized the repurchase of $10 billion of Caterpillar stock, which will expire on December 31, 2018.

Accumulated_other_comprehensiv

Accumulated other comprehensive income (loss)	12 Months Ended
	Dec. 31, 2013
Accumulated other comprehensive income (loss) [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated other comprehensive income (loss)
	Comprehensive income and its components are presented in Statement 2. Changes in Accumulated other comprehensive income (loss), net of tax, included in Statement 4, consisted of the following:
	(Millions of dollars)		Foreign currency translation				Pension and other postretirement benefits			Derivative financial instruments			Available-for-sale securities			Total
	Balance at December 31, 2011		$	206			$	(6,568	)	$	(10	)	$	44		$	(6,328	)
	Balance at December 31, 2012 1		$	456			$	(6,914	)	$	(42	)	$	67		$	(6,433	)
	Other comprehensive income (loss) before reclassifications		(280		)		2,280			(4		)	29			2,025
	Amounts reclassified from accumulated other comprehensive (income) loss		—				482			41			(13		)	510
	Other comprehensive income (loss)		(280		)		2,762			37			16			2,535
	Balance at December 31, 2013		$	176			$	(4,152	)	$	(5	)	$	83		$	(3,898	)
	1	In conjunction with the Cat Japan share redemption, to reflect the increase in our ownership interest in Cat Japan from 67 percent to 100 percent, $107 million was reclassified to Accumulated other comprehensive income (loss) from other components of stockholders' equity and was not included in Comprehensive income during the second quarter of 2012. The amount was comprised of foreign currency translation of $167 million, pension and other postretirement benefits of $(61) million and available-for-sale securities of $1 million.
	The effect of the reclassifications out of Accumulated other comprehensive income (loss) on Statement 1 is as follows:
	(Millions of dollars)		Classification of income (expense)		Year ended December 31, 2013
	Pension and other postretirement benefits:
	Amortization of actuarial gain (loss)		Note 12 1		$	(781	)
	Amortization of prior service credit (cost)		Note 12 1		54
	Amortization of transition asset (obligation)		Note 12 1		(2		)
	Reclassifications before tax				(729		)
	Tax (provision) benefit				247
	Reclassifications net of tax				$	(482	)
	Derivative financial instruments:
	Foreign exchange contracts		Other income (expense)		$	(57	)
	Interest rate contracts		Other income (expense)		(3		)
	Interest rate contracts		Interest expense of Financial Products		(6		)
	Reclassifications before tax				(66		)
	Tax (provision) benefit				25
	Reclassifications net of tax				$	(41	)
	Available-for-sale securities:
	Realized gain (loss) on sale of securities		Other income (expense)		$	19
	Tax (provision) benefit				(6		)
	Reclassifications net of tax				$	13
	Total reclassifications from Accumulated other comprehensive income (loss)				$	(510	)
	1    Amounts are included in the calculation of net periodic benefit cost. See Note 12 for additional information.

Fair_value_disclosures

Fair value disclosures	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair value disclosures	'
	Fair value disclosures
	A.	Fair value measurements
	The guidance on fair value measurements defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants.  This guidance also specifies a fair value hierarchy based upon the observability of inputs used in valuation techniques.  Observable inputs (highest level) reflect market data obtained from independent sources, while unobservable inputs (lowest level) reflect internally developed market assumptions.  In accordance with this guidance, fair value measurements are classified under the following hierarchy:
	•	Level 1 – Quoted prices for identical instruments in active markets.
	•	Level 2 – Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs or significant value-drivers are observable in active markets.
	•	Level 3 – Model-derived valuations in which one or more significant inputs or significant value-drivers are unobservable.
	When available, we use quoted market prices to determine fair value, and we classify such measurements within Level 1.  In some cases where market prices are not available, we make use of observable market based inputs to calculate fair value, in which case the measurements are classified within Level 2.  If quoted or observable market prices are not available, fair value is based upon internally developed models that use, where possible, current market-based parameters such as interest rates, yield curves and currency rates.  These measurements are classified within Level 3.
	Fair value measurements are classified according to the lowest level input or value-driver that is significant to the valuation.  A measurement may therefore be classified within Level 3 even though there may be significant inputs that are readily observable.
	Fair value measurement includes the consideration of nonperformance risk.  Nonperformance risk refers to the risk that an obligation (either by a counterparty or Caterpillar) will not be fulfilled.  For financial assets traded in an active market (Level 1 and certain Level 2), the nonperformance risk is included in the market price.  For certain other financial assets and liabilities (certain Level 2 and Level 3), our fair value calculations have been adjusted accordingly.
	Available-for-sale securities
	Our available-for-sale securities, primarily at Insurance Services, include a mix of equity and debt instruments (see Note 11 for additional information).  Fair values for our U.S. treasury bonds and equity securities are based upon valuations for identical instruments in active markets.  Fair values for other government bonds, corporate bonds and mortgage-backed debt securities are based upon models that take into consideration such market-based factors as recent sales, risk-free yield curves and prices of similarly rated bonds.
	Derivative financial instruments
	The fair value of interest rate swap derivatives is primarily based on models that utilize the appropriate market-based forward swap curves and zero-coupon interest rates to determine discounted cash flows.  The fair value of foreign currency and commodity forward, option and cross currency contracts is based on a valuation model that discounts cash flows resulting from the differential between the contract price and the market-based forward rate.
	Guarantees
	The fair value of guarantees is based on our estimate of the premium a market participant would require to issue the same guarantee in a stand-alone arms-length transaction with an unrelated party. If quoted or observable market prices are not available, fair value is based upon internally developed models that utilize current market-based assumptions.
	Assets and liabilities measured on a recurring basis at fair value, primarily related to Financial Products, included in Statement 3 as of December 31, 2013, 2012 and 2011 are summarized below:
			December 31, 2013
	(Millions of dollars)		Level 1			Level 2		Level 3		Total
										Assets / Liabilities,
										at Fair Value
	Assets
	Available-for-sale securities
	Government debt
	U.S. treasury bonds		$	10		$	—	$	—	$	10
	Other U.S. and non-U.S. government bonds		—			120		—		120
	Corporate bonds
	Corporate bonds		—			633		—		633
	Asset-backed securities		—			72		—		72
	Mortgage-backed debt securities
	U.S. governmental agency		—			321		—		321
	Residential		—			18		—		18
	Commercial		—			93		—		93
	Equity securities
	Large capitalization value		254			—		—		254
	Smaller company growth		49			—		—		49
	Total available-for-sale securities		313			1,257		—		1,570
	Derivative financial instruments, net		—			161		—		161
	Total Assets		$	313		$	1,418	$	—	$	1,731
	Liabilities
	Guarantees		$	—		$	—	$	13	$	13
	Total Liabilities		$	—		$	—	$	13	$	13
			December 31, 2012
	(Millions of dollars)		Level 1			Level 2		Level 3		Total
										Assets / Liabilities,
										at Fair Value
	Assets
	Available-for-sale securities
	Government debt
	U.S. treasury bonds		$	10		$	—	$	—	$	10
	Other U.S. and non-U.S. government bonds		—			146		—		146
	Corporate bonds
	Corporate bonds		—			664		—		664
	Asset-backed securities		—			96		—		96
	Mortgage-backed debt securities
	U.S. governmental agency		—			299		—		299
	Residential		—			25		—		25
	Commercial		—			127		—		127
	Equity securities
	Large capitalization value		185			—		—		185
	Smaller company growth		34			—		—		34
	Total available-for-sale securities		229			1,357		—		1,586
	Derivative financial instruments, net		—			154		—		154
	Total Assets		$	229		$	1,511	$	—	$	1,740
Liabilities
Guarantees		$	—		$	—	$	14	$	14
Total Liabilities		$	—		$	—	$	14	$	14
		December 31, 2011
(Millions of dollars)		Level 1			Level 2		Level 3		Total
									Assets / Liabilities,
									at Fair Value
Assets
Available-for-sale securities
Government debt
U.S. treasury bonds		$	10		$	—	$	—	$	10
Other U.S. and non-U.S. government bonds		—			92		—		92
Corporate bonds
Corporate bonds		—			572		—		572
Asset-backed securities		—			111		—		111
Mortgage-backed debt securities
U.S. governmental agency		—			310		—		310
Residential		—			30		—		30
Commercial		—			145		—		145
Equity securities
Large capitalization value		148			—		—		148
Smaller company growth		29			—		—		29
Total available-for-sale securities		187			1,260		—		1,447
Derivative financial instruments, net		—			145		—		145
Total Assets		$	187		$	1,405	$	—	$	1,592
Liabilities
Guarantees		$	—		$	—	$	7	$	7
Total Liabilities		$	—		$	—	$	7	$	7
Below are roll-forwards of liabilities measured at fair value using Level 3 inputs for the years ended December 31, 2013, 2012 and 2011.  These instruments were valued using pricing models that, in management’s judgment, reflect the assumptions of a market participant.
(Millions of dollars)		Guarantees
Balance at December 31, 2010		$	10
Issuance of guarantees		4
Expiration of guarantees		(7		)
Balance at December 31, 2011		$	7
Acquisitions		6
Issuance of guarantees		7
Expiration of guarantees		(6		)
Balance at December 31, 2012		$	14
Issuance of guarantees		6
Expiration of guarantees		(7		)
Balance at December 31, 2013		$	13
In addition to the amounts above, Cat Financial impaired loans are subject to measurement at fair value on a nonrecurring basis. A loan is considered impaired when management determines that collection of contractual amounts due is not probable.  In these cases, an allowance for credit losses may be established based primarily on the fair value of associated collateral.  As the collateral’s fair value is based on observable market prices and/or current appraised values, the impaired loans are classified as Level 2 measurements. Cat Financial had impaired loans with a fair value of $81 million, $117 million and $96 million for the years ended December 31, 2013, 2012 and 2011, respectively.
B.	Fair values of financial instruments
In addition to the methods and assumptions we use to record the fair value of financial instruments as discussed in the Fair value measurements section above, we used the following methods and assumptions to estimate the fair value of our financial instruments:
Cash and short-term investments
Carrying amount approximated fair value.
Restricted cash and short-term investments
Carrying amount approximated fair value.  Restricted cash and short-term investments are included in Prepaid expenses and other current assets in Statement 3.
Finance receivables
Fair value was estimated by discounting the future cash flows using current rates, representative of receivables with similar remaining maturities.
Wholesale inventory receivables
Fair value was estimated by discounting the future cash flows using current rates, representative of receivables with similar remaining maturities.
Short-term borrowings
Carrying amount approximated fair value.
Long-term debt
Fair value for fixed and floating rate debt was estimated based on quoted market prices.
Please refer to the table below for the fair values of our financial instruments.
TABLE III—Fair Values of Financial Instruments
		2013					2012				2011
(Millions of dollars)		Carrying			Fair		Carrying		Fair		Carrying		Fair		Fair Value Levels	Reference
		Amount			Value		Amount		Value		Amount		Value
Assets at December 31,
Cash and short-term investments		$	6,081		$	6,081	$	5,490	$	5,490	$	3,057	$	3,057	1	Statement 3
Restricted cash and short-term investments		53			53		53		53		87		87		1	Statement 3
Available-for-sale securities		1,570			1,570		1,586		1,586		1,447		1,447		1 & 2	Notes 11 & 19
Finance receivables–net (excluding finance leases 1)		16,049			15,913		15,404		15,359		12,689		12,516		2	Note 6 & 19
Wholesale inventory receivables–net (excluding finance leases 1)		1,529			1,467		1,674		1,609		1,591		1,505		2	Note 6 & 19
Foreign currency contracts–net		45			45		—		—		—		—		2	Notes 3 & 19
Interest rate swaps–net		116			116		219		219		241		241		2	Notes 3 & 19
Commodity contracts–net		—			—		1		1		—		—		2	Notes 3 & 19
Liabilities at December 31,
Short-term borrowings		3,679			3,679		5,287		5,287		3,988		3,988		1	Note 13
Long-term debt (including amounts due within one year):
Machinery and Power Systems		8,759			9,905		9,779		11,969		8,973		10,737		2	Note 14
Financial Products		25,312			25,849		25,077		26,063		21,631		22,674		2	Note 14
Foreign currency contracts–net		—			—		66		66		89		89		2	Notes 3 & 19
Commodity contracts–net		—			—		—		—		7		7		2	Notes 3 & 19
Guarantees		13			13		14		14		7		7		3	Note 21
1	Total excluded items have a net carrying value at December 31, 2013, 2012 and 2011 of $8,053 million, $7,959 million and $7,324 million, respectively.

Concentration_of_credit_risk

Concentration of credit risk	12 Months Ended
	Dec. 31, 2013
Risks and Uncertainties [Abstract]	'
Concentration of credit risk	'
	Concentration of credit risk
	Financial instruments with potential credit risk consist primarily of trade and finance receivables and short-term and long-term investments. Additionally, to a lesser extent, we have a potential credit risk associated with counterparties to derivative contracts.
	Trade receivables are primarily short-term receivables from independently owned and operated dealers and customers which arise in the normal course of business. We perform regular credit evaluations of our dealers and customers. Collateral generally is not required, and the majority of our trade receivables are unsecured. We do, however, when deemed necessary, make use of various devices such as security agreements and letters of credit to protect our interests. No single dealer or customer represents a significant concentration of credit risk.
	Finance receivables and wholesale inventory receivables primarily represent receivables under installment sales contracts, receivables arising from leasing transactions and notes receivable. We generally maintain a secured interest in the equipment financed. No single customer or dealer represents a significant concentration of credit risk.
	Short-term and long-term investments are held with high quality institutions and, by policy, the amount of credit exposure to any one institution is limited. Long-term investments, primarily included in Other assets in Statement 3, are comprised primarily of available-for-sale securities at Insurance Services.
	For derivative contracts, collateral is generally not required of the counterparties or of our company.  The company generally enters into International Swaps and Derivatives Association (ISDA) master netting agreements within Machinery & Power Systems and Financial Products that permit the net settlement of amounts owed under their respective derivative contracts.  Our exposure to credit loss in the event of nonperformance by the counterparties is limited to only those gains that we have recorded, but for which we have not yet received cash payment. The master netting agreements reduce the amount of loss the company would incur should the counterparties fail to meet their obligations.  At December 31, 2013, 2012 and 2011, the maximum exposure to credit loss, including accrued interest, was $251 million, $366 million and $443 million, respectively, before the application of any master netting agreements.  Please refer to Note 18 and Table III above for fair value information.

Operating_leases

Operating leases	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Operating leases	'
	Operating leases
	We lease certain computer and communications equipment, transportation equipment and other property through operating leases. Total rental expense for operating leases was $436 million, $474 million, and $429 million for 2013, 2012 and 2011, respectively.
	Minimum payments for operating leases having initial or remaining non-cancelable terms in excess of one year are:
	Years ended December 31,
	(Millions of dollars)
	2014		2015		2016		2017		2018		Thereafter		Total
	$	244	$	180	$	133	$	99	$	74	$	229	$	959

Guarantees_and_product_warrant

Guarantees and product warranty	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Guarantees and product warranty	'
	Guarantees and product warranty
	We have provided an indemnity to a third-party insurance company for potential losses related to performance bonds issued on behalf of Caterpillar dealers.  The bonds are issued to insure governmental agencies against nonperformance by certain dealers.  We also provided guarantees to a third-party related to the performance of contractual obligations by certain Caterpillar dealers. The guarantees cover potential financial losses incurred by the third-party resulting from the dealers’ nonperformance.
	We provide loan guarantees to third-party lenders for financing associated with machinery purchased by customers. These guarantees have varying terms and are secured by the machinery. In addition, Cat Financial participates in standby letters of credit issued to third parties on behalf of their customers. These standby letters of credit have varying terms and beneficiaries and are secured by customer assets.
	We have provided a guarantee to one of our customers in Brazil related to the performance of contractual obligations by a supplier consortium to which one of our Caterpillar subsidiaries is a member. The guarantees cover potential damages (some of them capped) incurred by the customer resulting from the supplier consortium’s non-performance. The guarantee will expire when the supplier consortium performs all its contractual obligations, which is expected to be completed in 2022.
	We have provided guarantees to third-party lessors for certain properties leased by Cat Logistics Services, LLC, in which we sold a 65 percent equity interest in the third quarter of 2012. See Note 26 for further discussion on this divestiture. The guarantees are for the possibility that the third party logistics business would default on real estate lease payments. The guarantees were granted at lease inception, which was prior to the divestiture, and generally will expire at the end of the lease terms.
	Cat Financial provided a limited indemnity to a third-party bank resulting from the assignment of certain leases to that bank.  The indemnity was for the possibility that the insurers of these leases would become insolvent.  The indemnity expired December 15, 2012.
	No loss has been experienced or is anticipated under any of these guarantees. At December 31, 2013, 2012 and 2011, the related liability was $13 million, $14 million and $7 million, respectively. The maximum potential amount of future payments (undiscounted and without reduction for any amounts that may possibly be recovered under recourse or collateralized provisions) we could be required to make under the guarantees at December 31 are as follows:
	(Millions of dollars)	2013			2012			2011
	Caterpillar dealer guarantees	$	193		$	180		$	140
	Customer guarantees	62			77			96
	Customer guarantees - supplier consortium	364			—			—
	Third party logistics business guarantees	151			176			—
	Limited indemnity	—			—			11
	Other guarantees	35			53			28
	Total guarantees	$	805		$	486		$	275
	Cat Financial provides guarantees to repurchase certain loans of Caterpillar dealers from a special-purpose corporation (SPC) that qualifies as a variable interest entity.  The purpose of the SPC is to provide short-term working capital loans to Caterpillar dealers.  This SPC issues commercial paper and uses the proceeds to fund its loan program.  Cat Financial has a loan purchase agreement with the SPC that obligates Cat Financial to purchase certain loans that are not paid at maturity.  Cat Financial receives a fee for providing this guarantee, which provides a source of liquidity for the SPC.  Cat Financial is the primary beneficiary of the SPC as their guarantees result in Cat Financial having both the power to direct the activities that most significantly impact the SPC’s economic performance and the obligation to absorb losses, and therefore Cat Financial has consolidated the financial statements of the SPC.  As of December 31, 2013, 2012 and 2011, the SPC’s assets of $1,005 million, $927 million and $586 million, respectively, are primarily comprised of loans to dealers, and the SPC’s liabilities of $1,005 million, $927 million and $586 million, respectively, are primarily comprised of commercial paper.  The assets of the SPC are not available to pay Cat Financial's creditors. Cat Financial may be obligated to perform under the guarantee if the SPC experiences losses. No loss has been experienced or is anticipated under this loan purchase agreement.
	Cat Financial is party to agreements in the normal course of business with selected customers and Caterpillar dealers in which we commit to provide a set dollar amount of financing on a pre-approved basis.  We also provide lines of credit to selected customers and Caterpillar dealers, of which a portion remains unused as of the end of the period.  Commitments and lines of credit generally have fixed expiration dates or other termination clauses. It has been our experience that not all commitments and lines of credit will be used. Management applies the same credit policies when making commitments and granting lines of credit as it does for any other financing.
	Cat Financial does not require collateral for these commitments/lines, but if credit is extended, collateral may be required upon funding.  The amount of the unused commitments and lines of credit for dealers as of December 31, 2013, 2012 and 2011 was $10,503 million, $10,863 million and $6,469 million, respectively.  The amount of the unused commitments and lines of credit for customers as of December 31, 2013, 2012 and 2011 was $4,635 million, $4,690 million and $2,785 million, respectively.
	Our product warranty liability is determined by applying historical claim rate experience to the current field population and dealer inventory.  Generally, historical claim rates are based on actual warranty experience for each product by machine model/engine size by customer or dealer location (inside or outside North America).  Specific rates are developed for each product shipment month and are updated monthly based on actual warranty claim experience.
	(Millions of dollars)	2013			2012			2011
	Warranty liability, January 1	$	1,477		$	1,308		$	1,035
	Reduction in liability (payments)	(938		)	(920		)	(926		)
	Increase in liability (new warranties)	828			1,089			1,199
	Warranty liability, December 31	$	1,367		$	1,477		$	1,308

Environmental_and_legal_matter

Environmental and legal matters	12 Months Ended
	Dec. 31, 2013
Environmental Remediation Obligations [Abstract]	'
Environmental and legal matters	'
	Environmental and legal matters
	The company is regulated by federal, state and international environmental laws governing our use, transport and disposal of substances and control of emissions. In addition to governing our manufacturing and other operations, these laws often impact the development of our products, including, but not limited to, required compliance with air emissions standards applicable to internal combustion engines. We have made, and will continue to make, significant research and development and capital expenditures to comply with these emissions standards.
	We are engaged in remedial activities at a number of locations, often with other companies, pursuant to federal and state laws.  When it is probable we will pay remedial costs at a site, and those costs can be reasonably estimated, the investigation, remediation, and operating and maintenance costs are accrued against our earnings.  Costs are accrued based on consideration of currently available data and information with respect to each individual site, including available technologies, current applicable laws and regulations, and prior remediation experience. Where no amount within a range of estimates is more likely, we accrue the minimum. Where multiple potentially responsible parties are involved, we consider our proportionate share of the probable costs. In formulating the estimate of probable costs, we do not consider amounts expected to be recovered from insurance companies or others.  We reassess these accrued amounts on a quarterly basis. The amount recorded for environmental remediation is not material and is included in Accrued expenses in Statement 3. There is no more than a remote chance that a material amount for remedial activities at any individual site, or at all the sites in the aggregate, will be required.
	On October 24, 2013, Progress Rail Services Corporation (Progress Rail), a wholly-owned indirect subsidiary of Caterpillar Inc., received a grand jury subpoena from the U.S. District Court for the Central District of California. The subpoena requests documents and information from Progress Rail, United Industries Corporation, a wholly-owned subsidiary of Progress Rail, and Caterpillar Inc. relating to allegations that Progress Rail conducted improper or unnecessary railcar inspections and repairs and improperly disposed of parts, equipment, tools and other items. In connection with this subpoena, Progress Rail was informed by the U.S. Attorney for the Central District of California that it is a target of a criminal investigation into potential violations of environmental laws and alleged improper business practices. The Company is cooperating with the authorities. The Company is unable to predict the outcome or reasonably estimate the potential loss; however, we currently believe that this matter will not have a material adverse effect on the Company's consolidated results of operation, financial position or liquidity.
	Beginning in September 2010, the company filed a series of legal claims to collect policy proceeds from a third party insurance company to recover amounts paid for covered asbestos defense and settlement costs for occurrences between 1962 and 1981. In the fourth quarter of 2013, the company reached final settlement with the third party insurance company. As a result, a gain of $68 million was recognized in Other operating (income) expense in Statement 1.
	In addition, we are involved in other unresolved legal actions that arise in the normal course of business. The most prevalent of these unresolved actions involve disputes related to product design, manufacture and performance liability (including claimed asbestos and welding fumes exposure), contracts, employment issues, environmental matters or intellectual property rights.  The aggregate range of reasonably possible losses in excess of accrued liabilities, if any, associated with these unresolved legal actions is not material.  In some cases, we cannot reasonably estimate a range of loss because there is insufficient information regarding the matter.  However, there is no more than a remote chance that any liability arising from these matters would be material.  Although it is not possible to predict with certainty the outcome of these unresolved legal actions, we believe that these actions will not individually or in the aggregate have a material adverse effect on our consolidated results of operations, financial position or liquidity.

Segment_information

Segment information	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment information	'
	Segment information
	A.	Basis for segment information
	Our Executive Office is comprised of five Group Presidents, a Senior Vice President and a CEO. Group Presidents are accountable for a related set of end-to-end businesses that they manage.  The Senior Vice President leads the Caterpillar Enterprise System Group, which was formed during the second quarter of 2013 with the goal of improving our manufacturing and supply chain capabilities, driving sustained improvements in customer deliveries, improving operational efficiencies and building on recent product quality improvements. The CEO allocates resources and manages performance at the Group President level.  As such, the CEO serves as our Chief Operating Decision Maker and operating segments are primarily based on the Group President reporting structure.
	Three of our operating segments, Construction Industries, Resource Industries and Power Systems, are led by Group Presidents.  One operating segment, Financial Products, is led by a Group President who has responsibility for Corporate Services.  Corporate Services is a cost center primarily responsible for the performance of certain support functions globally and to provide centralized services; it does not meet the definition of an operating segment. The Caterpillar Enterprise System Group is also a cost center and does not meet the definition of an operating segment.  One Group President leads a smaller operating segment that is included in the All Other operating segment.
	In 2012, a portion of goodwill related to recent acquisitions was allocated to Machinery and Power Systems operating segments and is now a methodology difference between segment and external reporting. The segment information for 2011 has been retrospectively adjusted.
	B.             Description of segments
	We have five operating segments, of which four are reportable segments.  Following is a brief description of our reportable segments and the business activities included in the All Other operating segment:
	Construction Industries:  A segment primarily responsible for supporting customers using machinery in infrastructure and building construction applications. Responsibilities include business strategy, product design, product management and development, manufacturing, marketing, and sales and product support. The product portfolio includes backhoe loaders, small wheel loaders, small track-type tractors, skid steer loaders, multi-terrain loaders, mini excavators, compact wheel loaders, select work tools, small, medium and large track excavators, wheel excavators, medium wheel loaders, compact track loaders, medium track-type tractors, track-type loaders, motor graders and pipelayers. In addition, Construction Industries has responsibility for Power Systems and three wholly-owned dealers in Japan and an integrated manufacturing cost center. Inter-segment sales are a source of revenue for this segment.
	Resource Industries:  A segment primarily responsible for supporting customers using machinery in mining and quarrying applications. Responsibilities include business strategy, product design, product management and development, manufacturing, marketing and sales and product support. The product portfolio includes large track-type tractors, large mining trucks, underground mining equipment, electric rope shovels, draglines, hydraulic shovels, drills, highwall miners, tunnel boring equipment, large wheel loaders, off-highway trucks, articulated trucks, wheel tractor scrapers, wheel dozers, select work tools, forestry products, paving products, industrial and waste products, machinery components and electronics and control systems. Resource Industries also manages areas that provide services to other parts of the company, including integrated manufacturing and research and development. In addition, segment profit includes the impact from divestiture of portions of the Bucyrus distribution business and the acquisition of ERA Mining Machinery Limited, including its wholly-owned subsidiary Zhengzhou Siwei Mechanical & Electrical Manufacturing Co., Ltd., commonly known as Siwei, which was completed during the second quarter of 2012. In the fourth quarter of 2013, Siwei was renamed Caterpillar (Zhengzhou) Ltd. Siwei primarily designs, manufactures, sells and supports underground coal mining equipment in China. Inter-segment sales are a source of revenue for this segment.
	Power Systems:  A segment primarily responsible for supporting customers using reciprocating engines, turbines and related parts across industries serving electric power, industrial, petroleum and marine applications as well as rail-related businesses. Responsibilities include business strategy, product design, product management, development, manufacturing, marketing, sales and product support of reciprocating engine powered generator sets, integrated systems used in the electric power generation industry, reciprocating engines and integrated systems and solutions for the marine and petroleum industries; reciprocating engines supplied to the industrial industry as well as Caterpillar machinery; the business strategy, product design, product management, development, manufacturing, marketing, sales and product support of turbines and turbine-related services; the development, manufacturing, remanufacturing, maintenance, leasing and service of diesel-electric locomotives and components and other rail-related products and services. Inter-segment sales are a source of revenue for this segment.
	Financial Products Segment:  Provides financing to customers and dealers for the purchase and lease of Caterpillar and other equipment, as well as some financing for Caterpillar sales to dealers.  Financing plans include operating and finance leases, installment sale contracts, working capital loans and wholesale financing plans. The segment also provides various forms of insurance to customers and dealers to help support the purchase and lease of our equipment.
	All Other:  Primarily includes activities such as: the remanufacturing of Cat® engines and components and remanufacturing services for other companies as well as the product management, development, manufacturing, marketing and product support of undercarriage, specialty products, hardened bar stock components and ground engaging tools primarily for Caterpillar products; logistics services; the product management, development, marketing, sales and product support of on-highway vocational trucks for North America; distribution services responsible for dealer development and administration, dealer portfolio management and ensuring the most efficient and effective distribution of machines, engines and parts; and the 50/50 joint venture with Navistar (NC2) until it became a wholly owned subsidiary of Navistar effective September 29, 2011. On July 31, 2012, we sold a majority interest in Caterpillar's third party logistics business. Inter-segment sales are a source of revenue for this segment. Results for the All Other operating segment are included as a reconciling item between reportable segments and consolidated external reporting.
	C.             Segment measurement and reconciliations
	There are several methodology differences between our segment reporting and our external reporting.  The following is a list of the more significant methodology differences:
	•	Machinery and Power Systems segment net assets generally include inventories, receivables, property, plant and equipment, goodwill, intangibles, accounts payable, and customer advances.  Liabilities other than accounts payable and customer advances are generally managed at the corporate level and are not included in segment operations.  Financial Products Segment assets generally include all categories of assets.
	•	Segment inventories and cost of sales are valued using a current cost methodology.
	•	Goodwill allocated to segments is amortized using a fixed amount based on a 20 year useful life.  This methodology difference only impacts segment assets; no goodwill amortization expense is included in segment profit. In addition, only a portion of goodwill for certain acquisitions made in 2011 or later has been allocated to segments.
	•	The present value of future lease payments for certain Machinery and Power Systems operating leases is included in segment assets.  The estimated financing component of the lease payments is excluded.
	•	Currency exposures for Machinery and Power Systems are generally managed at the corporate level and the effects of changes in exchange rates on results of operations within the year are not included in segment profit.  The net difference created in the translation of revenues and costs between exchange rates used for U.S. GAAP reporting and exchange rates used for segment reporting are recorded as a methodology difference.
	•	Postretirement benefit expenses are split; segments are generally responsible for service and prior service costs, with the remaining elements of net periodic benefit cost included as a methodology difference.
	•	Machinery and Power Systems segment profit is determined on a pretax basis and excludes interest expense, gains and losses on interest rate swaps and other income/expense items.  Financial Products Segment profit is determined on a pretax basis and includes other income/expense items.
	Reconciling items are created based on accounting differences between segment reporting and our consolidated external reporting. Please refer to pages A-87 to A-91 for financial information regarding significant reconciling items.  Most of our reconciling items are self-explanatory given the above explanations.  For the reconciliation of profit, we have grouped the reconciling items as follows:
	•	Corporate costs:  These costs are related to corporate requirements and strategies that are considered to be for the benefit of the entire organization.
	•	Methodology differences:  See previous discussion of significant accounting differences between segment reporting and consolidated external reporting.
	•	Timing:   Timing differences in the recognition of costs between segment reporting and consolidated external reporting.
	Segment Information
	(Millions of dollars)
	Reportable Segments
			External			Inter-				Total sales				Depreciation			Segment		Segment		Capital
			sales and			segment				and				and			profit		assets at		expenditures
			revenues			sales and				revenues				amortization					December 31
						revenues
	2013
	Construction Industries		$	18,445		$	336			$	18,781			$	576		$	1,363	$	8,429	$	645
	Resource Industries		13,270			871				14,141				758			1,575		11,201		539
	Power Systems		20,155			1,895				22,050				642			3,400		8,492		677
	Machinery and Power Systems		$	51,870		$	3,102			$	54,972			$	1,976		$	6,338	$	28,122	$	1,861
	Financial Products Segment		3,224			—				3,224				789			990		36,980		1,806
	Total		$	55,094		$	3,102			$	58,196			$	2,765		$	7,328	$	65,102	$	3,667
	2012
	Construction Industries		$	19,334		$	470			$	19,804			$	565		$	1,789	$	10,393	$	1,045
	Resource Industries		21,158			1,117				22,275				694			4,318		13,455		1,143
	Power Systems		21,122			2,407				23,529				604			3,434		9,323		960
	Machinery and Power Systems		$	61,614		$	3,994			$	65,608			$	1,863		$	9,541	$	33,171	$	3,148
	Financial Products Segment		3,090			—				3,090				708			763		36,563		1,660
	Total		$	64,704		$	3,994			$	68,698			$	2,571		$	10,304	$	69,734	$	4,808
	2011
	Construction Industries		$	19,667		$	575			$	20,242			$	526		$	2,056	$	7,942	$	915
	Resource Industries		15,629			1,162				16,791				463			3,334		12,292		717
	Power Systems		20,114			2,339				22,453				544			3,053		8,748		834
	Machinery and Power Systems		$	55,410		$	4,076			$	59,486			$	1,533		$	8,443	$	28,982	$	2,466
	Financial Products Segment		3,003			—				3,003				710			587		31,747		1,191
	Total		$	58,413		$	4,076			$	62,489			$	2,243		$	9,030	$	60,729	$	3,657
	Reconciliation of Sales and Revenues:
	(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
			and Power			Products				Adjustments				Total
			Systems
	2013
	Total external sales and revenues from reportable segments		$	51,870		$	3,224			$	—			$	55,094
	All Other operating segment		886			—				—				886
	Other		(62		)	78				(340		)	1	(324		)
	Total sales and revenues		$	52,694		$	3,302			$	(340	)		$	55,656
	2012
Total external sales and revenues from reportable segments		$	61,614		$	3,090			$	—			$	64,704
All Other operating segment		1,501			—				—				1,501
Other		(47		)	70				(353		)	1	(330		)
Total sales and revenues		$	63,068		$	3,160			$	(353	)		$	65,875
2011
Total external sales and revenues from reportable segments		$	55,410		$	3,003			$	—			$	58,413
All Other operating segment		2,021			—				—				2,021
Other		(39		)	54				(311		)	1	(296		)
Total sales and revenues		$	57,392		$	3,057			$	(311	)		$	60,138
1	Elimination of Financial Products revenues from Machinery and Power Systems.
Reconciliation of consolidated profit before taxes:
(Millions of dollars)		Machinery			Financial				Consolidated
		and Power			Products				Total
		Systems
2013
Total profit from reportable segments		$	6,338		$	990			$	7,328
All Other operating segment		663			—				663
Cost centers		119			—				119
Corporate costs		(1,442		)	—				(1,442		)
Timing		89			—				89
Methodology differences:
Inventory/cost of sales		(112		)	—				(112		)
Postretirement benefit expense		(685		)	—				(685		)
Financing costs		(469		)	—				(469		)
Equity in (profit) loss of unconsolidated affiliated companies		6			—				6
Currency		(110		)	—				(110		)
Interest rate swap		(1		)	—				(1		)
Other income/expense methodology differences		(238		)	—				(238		)
Other methodology differences		(50		)	30				(20		)
Total consolidated profit before taxes		$	4,108		$	1,020			$	5,128
2012
Total profit from reportable segments		$	9,541		$	763			$	10,304
All Other operating segment		1,014			—				1,014
Cost centers		17			—				17
Corporate costs		(1,517		)	—				(1,517		)
Timing		(298		)	—				(298		)
Methodology differences:
Inventory/cost of sales		43			—				43
Postretirement benefit expense		(696		)	—				(696		)
Financing costs		(474		)	—				(474		)
Equity in (profit) loss of unconsolidated affiliated companies		(14		)	—				(14		)
Currency		108			—				108
Interest rate swap		2			—				2
Other income/expense methodology differences		(251		)	—				(251		)
Other methodology differences		(19		)	17				(2		)
Total consolidated profit before taxes		$	7,456		$	780			$	8,236
2011
Total profit from reportable segments		$	8,443		$	587			$	9,030
All Other operating segment		837			—				837
Cost centers		14			—				14
Corporate costs		(1,174		)	—				(1,174		)
Timing		(203		)	—				(203		)
Methodology differences:
Inventory/cost of sales		21			—				21
Postretirement benefit expense		(670		)	—				(670		)
Financing costs		(408		)	—				(408		)
Equity in (profit) loss of unconsolidated affiliated companies		24			—				24
Currency		(315		)	—				(315		)
Interest rate swap		(149		)	—				(149		)
Other income/expense methodology differences		(273		)	—				(273		)
Other methodology differences		(42		)	33				(9		)
Total consolidated profit before taxes		$	6,105		$	620			$	6,725
Reconciliation of Assets:
(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
		and Power			Products				Adjustments				Total
		Systems
2013
Total assets from reportable segments		$	28,122		$	36,980			$	—			$	65,102
All Other operating segment		1,431			—				—				1,431
Items not included in segment assets:
Cash and short-term investments		4,597			—				—				4,597
Intercompany receivables		1,219			—				(1,219		)		—
Investment in Financial Products		4,798			—				(4,798		)		—
Deferred income taxes		2,541			—				(525		)		2,016
Goodwill and intangible assets		3,582			—				—				3,582
Property, plant and equipment – net and other assets		1,091			—				—				1,091
Operating lease methodology difference		(290		)	—				—				(290		)
Liabilities included in segment assets		10,372			—				—				10,372
Inventory methodology differences		(2,539		)	—				—				(2,539		)
Other		(220		)	(135		)		(111		)		(466		)
Total assets		$	54,704		$	36,845			$	(6,653	)		$	84,896
2012
Total assets from reportable segments		$	33,171		$	36,563			$	—			$	69,734
All Other operating segment		1,499			—				—				1,499
Items not included in segment assets:
Cash and short-term investments		3,306			—				—				3,306
Intercompany receivables		303			—				(303		)		—
Investment in Financial Products		4,433			—				(4,433		)		—
Deferred income taxes		3,926			—				(516		)		3,410
Goodwill and intangible assets		3,145			—				—				3,145
Property, plant and equipment – net and other assets		668			—				—				668
Operating lease methodology difference		(329		)	—				—				(329		)
Liabilities included in segment assets		10,907			—				—				10,907
Inventory methodology differences		(2,949		)	—				—				(2,949		)
Other		(182		)	(107		)		(132		)		(421		)
Total assets		$	57,898		$	36,456			$	(5,384	)		$	88,970
2011
Total assets from reportable segments		$	28,982		$	31,747			$	—			$	60,729
All Other operating segment		2,035			—				—				2,035
Items not included in segment assets:
Cash and short-term investments		1,829			—				—				1,829
Intercompany receivables		75			—				(75		)		—
Investment in Financial Products		4,035			—				(4,035		)		—
Deferred income taxes		4,109			—				(533		)		3,576
Goodwill and intangible assets		2,816			—				—				2,816
Property, plant and equipment – net and other assets		1,645			—				—				1,645
Operating lease methodology difference		(511		)	—				—				(511		)
Liabilities included in segment assets		11,860			—				—				11,860
Inventory methodology differences		(2,786		)	—				—				(2,786		)
Other		362			(194		)		(143		)		25
Total assets		$	54,451		$	31,553			$	(4,786	)		$	81,218
Reconciliation of Depreciation and amortization:
(Millions of dollars)		Machinery			Financial				Consolidated
		and Power			Products				Total
		Systems
2013
Total depreciation and amortization from reportable segments		$	1,976		$	789			$	2,765
Items not included in segment depreciation and amortization:
All Other operating segment		173			—				173
Cost centers		140			—				140
Other		(16		)	25				9
Total depreciation and amortization		$	2,273		$	814			$	3,087
2012
Total depreciation and amortization from reportable segments		$	1,863		$	708			$	2,571
Items not included in segment depreciation and amortization:
All Other operating segment		168			—				168
Cost centers		89			—				89
Other		(38		)	23				(15		)
Total depreciation and amortization		$	2,082		$	731			$	2,813
2011
Total depreciation and amortization from reportable segments		$	1,533		$	710			$	2,243
Items not included in segment depreciation and amortization:
All Other operating segment		172			—				172
Cost centers		77			—				77
Other		20			15				35
Total depreciation and amortization		$	1,802		$	725			$	2,527
Reconciliation of Capital expenditures:
(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
		and Power			Products				Adjustments				Total
		Systems
2013
Total capital expenditures from reportable segments		$	1,861		$	1,806			$	—			$	3,667
Items not included in segment capital expenditures:
All Other operating segment		340			—				—				340
Cost centers		169			—				—				169
Timing		363			—				—				363
Other		(128		)	105				(70		)		(93		)
Total capital expenditures		$	2,605		$	1,911			$	(70	)		$	4,446
2012
Total capital expenditures from reportable segments		$	3,148		$	1,660			$	—			$	4,808
Items not included in segment capital expenditures:
All Other operating segment		359			—				—				359
Cost centers		175			—				—				175
Timing		(71		)	—				—				(71		)
Other		(176		)	136				(155		)		(195		)
Total capital expenditures		$	3,435		$	1,796			$	(155	)		$	5,076
2011
Total capital expenditures from reportable segments		$	2,466		$	1,191			$	—			$	3,657
Items not included in segment capital expenditures:
All Other operating segment		343			—				—				343
Cost centers		146			—				—				146
Timing		(211		)	—				—				(211		)
Other		(98		)	163				(76		)		(11		)
Total capital expenditures		$	2,646		$	1,354			$	(76	)		$	3,924
Enterprise-wide Disclosures:
Information about Geographic Areas:
													Property, plant and equipment - net
		External sales and revenues 1											December 31,
(Millions of dollars)		2013			2012				2011				2013			2012		2011
Inside United States		$	18,579		$	20,239			$	17,980			$	8,723		$	8,559	$	7,448
Outside United States		37,077			45,636			2	42,158				8,352			7,902		6,947
Total		$	55,656		$	65,875			$	60,138			$	17,075		$	16,461	$	14,395
1	Sales of Machinery and Power Systems are based on dealer or customer location. Revenues from services provided are based on where service is rendered.
2	The only country with greater than 10 percent of external sales and revenues for any of the periods presented, other than the United States, is Australia with $6,822 million as of December 31, 2012.

Acquisitions

Acquisitions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Acquisitions	'
	Acquisitions
	Johan Walter Berg AB
	In September 2013, we acquired 100 percent of the stock of Johan Walter Berg AB (Berg). Berg is a leading manufacturer of mechanically and electrically driven propulsion systems and marine controls for ships. Headquartered in Öckerö Islands, Sweden, Berg has designed and manufactured heavy-duty marine thrusters and controllable pitch propellers since 1929. Its proprietary systems are employed in maritime applications throughout the world that require precise maneuvering and positioning. With the acquisition, Caterpillar will transition from selling only engines and generators to providing complete marine propulsion package systems. The purchase price, net of $9 million of acquired cash, was approximately $166 million. The purchase price includes contingent consideration, payable in 2016, with a fair value of approximately $7 million. The contingent consideration will be based on the revenues achieved by Berg in the period from January 1, 2013 to December 31, 2015 and is capped at €30 million. The contingent consideration will be remeasured each reporting period at its estimated fair value with any adjustment included in Other operating (income) expenses in Statement 1.
	The transaction was financed with available cash. Tangible assets as of the acquisition date were $82 million, recorded at their fair values, and primarily included cash of $9 million, receivables of $13 million, inventories of $32 million and property, plant and equipment of $28 million. Finite-lived intangible assets acquired of $70 million included developed technology, customer relationships, and trade names. The finite lived intangible assets are being amortized on a straight-line basis over a weighted-average amortization period of approximately 11 years. Liabilities assumed as of the acquisition date were $83 million, recorded at their fair values, and primarily included accounts payable of $19 million, customer advances of $31 million and net deferred tax liabilities of $15 million. Goodwill of $106 million, non-deductible for income tax purposes, represented the excess of the consideration transferred over the net assets recognized and represented the estimated future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Factors that contributed to a purchase price resulting in the recognition of goodwill include Berg’s strategic fit into our product portfolio, the opportunity to provide worldwide support to marine operators for a complete, optimized propulsion package, and the acquired assembled workforce. These values represent a preliminary allocation of purchase price subject to finalization of post-closing procedures. The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Power Systems segment in Note 23. Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.
	Black Horse Joint Venture
	In December 2012, Caterpillar and Ariel Corporation (Ariel) contributed $70 million each to obtain a 50 percent equity interest in a newly formed company, Black Horse LLC (Black Horse). Immediately upon formation, Black Horse acquired ProSource, a pump manufacturer headquartered in Houston, Texas. The acquisition of ProSource, which designs and manufactures reciprocating pressure pumps, enables Black Horse to serve the well service market. Black Horse will leverage Caterpillar and Ariel engineering and manufacturing expertise to expand ProSource's existing product line to better serve global oil and gas customers. Frac pumps sold through the combined venture will be branded and sold under the Caterpillar name and will be distributed through the Caterpillar dealer network. Our investment in Black Horse, accounted for by the equity method, is included in Investments in unconsolidated affiliated companies in Statement 3.
	ERA Mining Machinery Limited (Siwei)
	During the second quarter of 2012, Caterpillar, through its wholly-owned subsidiary Caterpillar (Luxembourg) Investment Co. S.A. (CAT Lux), completed a tender offer to acquire the issued shares of ERA Mining Machinery Limited (Siwei), including its wholly-owned subsidiary Zhengzhou Siwei Mechanical Manufacturing Co., Ltd. In the fourth quarter of 2013, Siwei was renamed Caterpillar (Zhengzhou) Ltd. Substantially all of the issued shares of Siwei, a public company listed on the Hong Kong Exchange, were acquired at the end of May 2012. In October 2012, the remaining shares of Siwei common stock were acquired for approximately $7 million in cash. Siwei primarily designs, manufactures, sells and supports underground coal mining equipment in mainland China and is known for its expertise in manufacturing mining roof support equipment. The acquisition supports Caterpillar's long-term commitment to invest in China in order to support our growing base of Chinese customers and will further expand our underground mining business both inside and outside of China.
	The tender offer allowed Siwei shareholders to choose between two types of consideration in exchange for their shares. The alternatives were either cash consideration of HK$0.88 or a HK$1.00 loan note issued by CAT Lux to the former shareholders of Siwei that provided, subject to its terms, for the holder to receive on redemption a minimum of HK$0.75 up to a maximum of HK$1.15 depending on Siwei's consolidated gross profit for 2012 and 2013. Approximately 4 billion Siwei shares were tendered for the cash alternative and approximately 1.6 billion Siwei shares were tendered for the loan note alternative. The purchase price of approximately $677 million was comprised of net cash paid of approximately $444 million ($475 million in cash paid for shares and to cancel share options less cash acquired of $31 million), the fair value of the loan notes of $152 million, approximately $168 million of assumed third-party short term borrowings and notes payable, a loan and interest payable to Caterpillar from Siwei of $51 million, less restricted cash acquired of approximately $138 million. The noncontrolling interest for the outstanding shares not tendered was approximately $7 million.
	The transaction was financed with available cash and included the issuance of loan notes to certain former shareholders of Siwei, which had a debt component and a portion that was contingent consideration. The $152 million fair value represented the minimum redemption amount of the debt component payable in April 2013.
	Tangible assets as of the acquisition date and after giving effect to the adjustments described below were $598 million, recorded at their fair values, and primarily included cash of $31 million, restricted cash of $138 million, receivables of $184 million, inventories of $77 million and property, plant and equipment of $94 million. Finite-lived intangible assets acquired of $112 million were primarily related to customer relationships and also included trade names. The finite-lived intangible assets are being amortized on a straight-line basis over a weighted average amortization period of approximately 14 years. Liabilities assumed as of the acquisition date and after giving effect to the adjustments described below were $626 million, recorded at their fair values, and primarily included accounts payable of $352 million, third-party short term borrowings and notes payable of $168 million and accrued expenses of $37 million. Additionally, deferred tax liabilities were $25 million. Goodwill of $625 million, substantially all of which is non-deductible for income tax purposes, represented the excess of the consideration transferred over the net assets recognized and represented the estimated future economic benefits arising from other assets acquired that could not be individually identified and separately recognized. Goodwill will not be amortized, but will be tested for impairment at least annually. Factors that contributed to a purchase price resulting in the recognition of goodwill include expected cost savings primarily from increased purchasing power for raw materials, improved working capital management, expanded underground mining equipment sales opportunities in China and internationally, along with the acquired assembled workforce. The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Resource Industries segment in Note 23. Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.
	In November 2012, Caterpillar became aware of inventory accounting discrepancies at Siwei which led to an internal investigation. Caterpillar's investigation determined that Siwei had engaged in accounting misconduct prior to Caterpillar's acquisition of Siwei in mid-2012. The accounting misconduct included inappropriate accounting practices involving improper cost allocation that resulted in overstated profit and improper revenue recognition practices involving early and, at times unsupported, revenue recognition. Due to the identified accounting misconduct that occurred before the acquisition, measurement period adjustments were made to the fair value of the acquired assets and assumed liabilities during the fourth quarter of 2012. The fair values presented above are a final allocation of the purchase price and reflect these changes, which are primarily comprised of a decrease in finite-lived intangible assets of $82 million, a decrease in receivables of $29 million, a decrease in inventory of $17 million and a net increase in liabilities of $23 million, resulting in an increase in goodwill of $149 million.
	Because of the accounting misconduct identified in the fourth quarter of 2012, Siwei's goodwill was tested for impairment as of November 30, 2012. We determined the carrying value of Siwei, which is a separate reporting unit, exceeded its fair value at the measurement date, requiring step two in the impairment test process.  The fair value of the Siwei reporting unit was determined primarily using an income approach based on the present value of discounted cash flows. We assigned the fair value to the reporting unit's assets and liabilities and determined the implied fair value of goodwill was substantially below the carrying value of the reporting unit's goodwill.  Accordingly, we recognized a $580 million goodwill impairment charge, which resulted in goodwill of approximately $45 million remaining for Siwei. The goodwill impairment was a result of changes in the assumptions used to determine the fair value resulting from the accounting misconduct that occurred before the acquisition. There was no tax benefit associated with this impairment charge. The Siwei goodwill impairment charge was reported in the fourth quarter of 2012 in the Resource Industries segment.
	In May 2013, Caterpillar and its wholly-owned subsidiaries CAT Lux and Siwei entered into a settlement agreement with two former directors of Siwei and two other parties with an interest in the settlement, including Mining Machinery Limited (MML). The agreement settles the dispute between the parties which arose from Caterpillar's determination that Siwei senior managers had engaged in accounting misconduct for several years prior to Caterpillar's announcement of the completion of its tender offer for Siwei in the second quarter of 2012.
	Under the terms of the settlement agreement, the parties agreed that (i) the loan notes issued by CAT Lux (and guaranteed by Caterpillar) as a portion of the Siwei purchase price and held by MML and (ii) loans made by the two former Siwei directors to Siwei prior to its acquisition by Caterpillar would all be canceled and discharged in exchange for payments by CAT Lux to MML and the two former directors in an aggregate amount of approximately $30 million. As of the settlement in May 2013, the loan notes had a book value of approximately $152 million and the obligation related to the loans by the two former directors was approximately $13 million. The settlement agreement contains a mutual release and discharge of the parties' respective claims with respect to the dispute and contains an agreement by Caterpillar and CAT Lux not to pursue any such claims against either the auditors or former directors of Siwei. The settlement and discharge of the loan obligations resulted in the recognition of a gain of approximately $135 million reported in Other operating (income) expenses in Statement 1 and is included in the Resource Industries segment.
	Caterpillar Tohoku Ltd.
	In March 2012, we acquired 100 percent of the stock of Caterpillar Tohoku Ltd. (Cat Tohoku). Cat Tohoku was an independently owned and operated dealership providing sales, rental, service and after market support for Caterpillar machines and engines in the northeastern part of Japan. The purchase price, net of $18 million of acquired cash, was approximately $206 million. The purchase price included the assumption of $77 million in third-party debt, as well as $64 million net trade payables due to Caterpillar. We paid approximately $59 million at closing, $22 million in July 2012, and $3 million in March 2013. The acquisition of Cat Tohoku supports Caterpillar's efforts to restructure its distribution network in Japan.
	The transaction was financed with available cash. Tangible assets as of the acquisition date were $252 million and primarily included cash of $18 million, receivables of $34 million, inventory of $26 million, and property, plant and equipment of $157 million. Finite-lived intangible assets acquired were $8 million. Liabilities assumed as of the acquisition date were $135 million, recorded at their fair values, and primarily included debt of $77 million and accounts payable of $39 million. Goodwill of $22 million, which is deductible for income tax purposes, represents the excess of cost over the fair value of net tangible assets acquired. The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Construction Industries segment in Note 23. Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.
	MWM Holding GmbH (MWM)
	On October 31, 2011, we acquired 100 percent of the equity in privately held MWM Holding GmbH (MWM).  Headquartered in Mannheim, Germany, MWM is a global supplier of sustainable, natural gas and alternative-fuel engines.  With the acquisition of MWM, Caterpillar expects to expand customer options for sustainable power generation solutions.  The purchase price, net of $94 million of acquired cash, was approximately $774 million (€574 million).
	The transaction was financed with available cash.  Tangible assets as of the acquisition date were $535 million, recorded at their fair values, and primarily included cash of $94 million, receivables of $96 million, inventories of $205 million and property, plant and equipment of $108 million.  Finite-lived intangible assets acquired of $221 million were primarily related to customer relationships and also included intellectual property and trade names.  The finite lived intangible assets are being amortized on a straight-line basis over a weighted average amortization period of approximately 10 years.  Liabilities assumed as of the acquisition date were $284 million, recorded at their fair values, and primarily included accounts payable of $77 million, net deferred tax liabilities of $67 million and advance payments of $43 million.  Goodwill of $396 million, approximately $90 million of which is deductible for income tax purposes, represents the excess of cost over the fair value of the net tangible and intangible assets acquired.  Factors that contributed to a purchase price resulting in the recognition of goodwill include MWM’s strategic fit into our product and services portfolio, aftermarket support opportunities and the acquired assembled workforce.  The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Power Systems segment in Note 23.  Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.
	Pyroban Group Limited
	In August 2011, we acquired 100 percent of the stock of Pyroban Group Limited (Pyroban) for approximately $69 million.  Pyroban is a leading provider of explosion protection safety solutions to the oil, gas, industrial and material handling markets headquartered in the United Kingdom with additional locations in the Netherlands, France, Singapore and China.  We expect this acquisition will allow us to grow our existing position in the oil and gas industry and provide further differentiation versus competition.
	The transaction was financed with available cash.  As of the acquisition date, net tangible assets acquired and liabilities assumed of $5 million were recorded at their fair values.  Finite-lived intangible assets acquired of $41 million included customer relationships and trademarks are being amortized on a straight-line basis over a weighted-average amortization period of approximately 15 years.  Goodwill of $23 million, non-deductible for income tax purposes, represents the excess of cost over the fair value of net tangible and finite-lived intangible assets acquired.  The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and reported in the Power Systems segment in Note 23.  Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.
	Bucyrus International, Inc.
	On July 8, 2011, we completed our acquisition of Bucyrus International, Inc. (Bucyrus).  Bucyrus is a designer, manufacturer and marketer of mining equipment for the surface and underground mining industries.  The total purchase price was approximately $8.8 billion, consisting of $7.4 billion for the purchase of all outstanding shares of Bucyrus common stock at $92 per share and $1.6 billion of assumed Bucyrus debt, substantially all of which was repaid subsequent to closing, net of $0.2 billion of acquired cash.
	We funded the acquisition using available cash, commercial paper borrowings and approximately $4.5 billion of long-term debt issued in May 2011.  On May 24, 2011, we issued $500 million of Floating Rate Senior Notes (Three-month USD LIBOR plus 0.10%) due in 2012 and $750 million of Floating Rate Senior Notes (Three-month USD LIBOR plus 0.17%) due in 2013.  The interest rates for the Floating Rate Senior Notes will be reset quarterly.  We also issued $750 million of 1.375% Senior Notes due in 2014, $1.25 billion of 3.900% Senior Notes due in 2021, and $1.25 billion of 5.200% Senior Notes due in 2041.  The Notes are unsecured obligations of Caterpillar and rank equally with all other senior unsecured indebtedness.
	In December 2011 and continuing in 2012 and 2013, we completed divestitures of portions of the Bucyrus distribution business.  The following disclosures do not reflect the impact of these divestitures (see Note 26 for additional discussion).
	Bucyrus contributed the following to sales and to profit before taxes (inclusive of deal-related and integration costs):
	(Millions of dollars)	July 8, 2011 to December 31, 2011
	Sales	$	2,524
	Profit (loss) before taxes	$	(403	)
	The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Resource Industries segment in Note 23. For the year ended December 31, 2011, we recorded $373 million in costs related to the acquisition of Bucyrus. These acquisition related costs included consulting, legal and advisory fees, severance costs and financing costs.
	During the three months ended December 31, 2011, we adjusted the initial allocation of the purchase price which reduced goodwill by $647 million, the net result of purchase accounting adjustments to the fair value of acquired assets and assumed liabilities. During 2012, we finalized the allocation of the purchase price to identifiable assets and liabilities, reducing the amount allocated to goodwill from our December 31, 2011 preliminary allocation by an additional $28 million. These adjustments primarily included a reduction to goodwill to reflect the tax consequences of the expected reversal of differences in the U.S. GAAP and tax basis of assets and liabilities.
	The following table summarizes our initial and final allocation of the assets acquired and liabilities assumed as of the acquisition date at estimated fair value.
		July 8, 2011
	(Millions of dollars)	Initial			Final
	Assets
	Cash	$	203		$	204
	Receivables - trade and other	693			705
	Prepaid expenses	154			174
	Inventories	2,305			2,223
	Property, plant and equipment - net	692			694
	Intangible assets	3,901			3,901
	Goodwill	5,263			4,588
	Other assets	48			141
	Liabilities
	Short-term borrowings	24			24
	Long-term debt due within one year	16			16
	Accounts payable	444			465
	Accrued expenses	405			433
	Customer advances	668			668
	Other current liabilities	426			76
	Long-term debt due after one year	1,514			1,528
	Noncurrent deferred income tax liabilities	1,874			1,449
	Other liabilities	434			517
	Net assets acquired	$	7,454		$	7,454
	The following table is a summary of the fair value estimates of the acquired identifiable intangible assets and weighted–average useful lives. These intangible assets recorded as a result of the acquisition are being amortized on a straight-line basis over their respective weighted-average useful life.
	(Millions of dollars)
		Fair Value			Weighted-average
					useful life (in years)
	Customer relationships	$	2,337		15
	Intellectual property	1,489			12
Other	75			4
Total	$	3,901		14
Goodwill in the amount of $4,588 million was recorded for the acquisition of Bucyrus.  Goodwill is calculated as the excess of the consideration transferred over the net assets recognized and represents the estimated future economic benefits arising from other assets acquired that could not be individually identified and separately recognized.  Goodwill will not be amortized, but will be tested for impairment at least annually.  Approximately $500 million of the goodwill is deductible for tax purposes.  Goodwill largely consists of expected synergies resulting from the acquisition.  Key areas of expected cost savings include elimination of redundant selling, general and administrative expenses and increased purchasing power for raw materials and supplies.  We also anticipate the acquisition will produce growth synergies as a result of the combined businesses’ broader product portfolio in the mining industry.
A single estimate of fair value results from a complex series of judgments about future events and uncertainties and relies heavily on estimates and assumptions.  The judgments used to determine the estimated fair value assigned to each class of assets acquired and liabilities assumed, as well as asset lives, can materially impact our results of operations.
The unaudited pro forma results presented below include the effects of the Bucyrus acquisition as if it had occurred as of January 1, 2010.  The unaudited pro forma results reflect certain adjustments related to the acquisition, such as the amortization associated with estimates for the acquired intangible assets, fair value adjustments for inventory, contracts and the impact of acquisition financing.  The 2011 supplemental pro forma earnings excluded $373 million of acquisition related costs, including consulting, legal and advisory fees, severance costs and financing expense prior to debt issuance.  Also, the 2011 supplemental pro forma earnings were adjusted to exclude $303 million of nonrecurring expense related to the fair value adjustment to acquisition-date inventory and $25 million acceleration of Bucyrus stock compensation expense.
The pro forma results do not include any anticipated synergies or other expected benefits of the acquisition.  Accordingly, the unaudited pro forma financial information below is not necessarily indicative of either future results of operations or results that might have been achieved had the acquisition been completed on the dates indicated.
(Dollars in millions except per share data)	Year Ended December 31, 2011
Total Sales and revenues	$	62,281
Profit	$	5,401
Profit per common share	$	8.37
Profit per common share – diluted	$	8.11
Balfour Beatty’s Trackwork Business
In May 2011, we acquired 100 percent of the assets and certain liabilities of the United Kingdom trackwork business from Balfour Beatty Rail Limited for approximately $60 million.  The trackwork division specializes in the design and manufacture of special trackwork and associated products for the United Kingdom and international rail markets.  The acquisition supports our strategic initiative to expand the scope and product range of our rail business.
The transaction was financed with available cash.  Tangible assets as of the acquisition date were $82 million, recorded at their fair values, and included receivables of $18 million, inventory of $12 million, and property, plant and equipment of $52 million.  Liabilities assumed as of the acquisition date were $22 million, recorded at their fair values, and primarily included accounts payable of $10 million and accrued expenses of $10 million.  The results of the acquired business for the period from the acquisition date are included in the accompanying consolidated financial statements and are reported in the Power Systems segment in Note 23.  Assuming this transaction had been made at the beginning of any period presented, the consolidated pro forma results would not be materially different from reported results.

Redeemable_Noncontrolling_Inte

Redeemable Noncontrolling Interest - Caterpillar Japan Ltd.	12 Months Ended
	Dec. 31, 2013
Redeemable Noncontrolling Interest Disclosure Abstract	'
Redeemable Noncontrolling Interest - Caterpillar Japan Ltd.	'
	Redeemable Noncontrolling Interest – Caterpillar Japan Ltd.
	On August 1, 2008, Shin Caterpillar Mitsubishi Ltd. (SCM) completed the first phase of a share redemption plan whereby SCM redeemed half of Mitsubishi Heavy Industries' (MHI’s) shares in SCM. This resulted in Caterpillar owning 67 percent of the outstanding shares of SCM and MHI owning the remaining 33 percent. As part of the share redemption, SCM was renamed Caterpillar Japan Ltd. (Cat Japan) and we consolidated its financial statements. On April 2, 2012, we redeemed the remaining 33 percent interest at its carrying amount, resulting in Caterpillar becoming the sole owner of Cat Japan. Caterpillar paid $444 million (36.5 billion Japanese Yen) to acquire the remaining equity interest held in Cat Japan by MHI.

Divestitures_and_Assets_held_f

Divestitures and Assets held for sale	12 Months Ended
	Dec. 31, 2013
Divestitures and Assets held for sale	'
Divestitures and Assets held for sale	'
	Divestitures and Assets held for sale
	Bucyrus Distribution Business Divestitures
	In conjunction with our acquisition of Bucyrus in July 2011, we announced our intention to sell the Bucyrus distribution business to Caterpillar dealers that support mining customers around the world in a series of individual transactions.  Bucyrus predominantly employed a direct to end customer model to sell and support products.  The intention is for all Bucyrus products to be sold and serviced by Caterpillar dealers, consistent with our long-held distribution strategy.  These transitions are occurring in phases based on the mining business opportunity within each dealer territory.
	As portions of the Bucyrus distribution business are sold or classified as held for sale, they will not qualify as discontinued operations because Caterpillar expects significant continuing direct cash flows from the Caterpillar dealers after the divestitures. The gain or loss on disposal, along with the continuing operations of these disposal groups, will be reported in the Resource Industries segment. Goodwill will be allocated to each disposal group using the relative fair value method. The value of the customer relationship intangibles related to each portion of the Bucyrus distribution business to be sold will be included in the disposal groups. The disposal groups will be recorded at the lower of their carrying value or fair value less cost to sell. In 2013 and 2012, we recorded asset impairment charges of $11 million and $27 million respectively, related to disposal groups being sold to Caterpillar dealers. Fair value was determined based upon the negotiated sales price. The impairments were recorded in Other operating (income) expenses and included in the Resource Industries segment. The portions of the distribution business that were sold were not material to our results of operations, financial position or cash flow.
	In 2013, we completed 19 sale transactions whereby we sold portions of the Bucyrus distribution business to Caterpillar dealers for an aggregate price of $466 million. A portion of these transactions are subject to certain working capital adjustments. For the full year 2013, after-tax profit was unfavorably impacted by $39 million as a result of the Bucyrus distribution divestiture activities. This is comprised of $95 million of income related to sales transactions, a $34 million unfavorable adjustment due to a change in estimate to increase the reserve for parts returns related to prior sale transactions (both included in Other operating (income) expenses), costs incurred related to the Bucyrus distribution divestiture activities of $104 million (included in Selling, general and administrative expenses) and an income tax benefit of $4 million.
	Assets sold in 2013 included customer relationship intangibles of $127 million, other assets of $65 million, which consisted primarily of inventory and fixed assets, and allocated goodwill of $56 million related to the divested portions of the Bucyrus distribution business.
	As part of the 2013 divestitures, Cat Financial provided $132 million of financing to five of the Caterpillar dealers.
	In 2012, we completed 12 sale transactions whereby we sold portions of the Bucyrus distribution business to Caterpillar dealers for an aggregate price of $1,443 million, which included $38 million of working capital adjustments paid throughout 2013. For the full year 2012, after-tax profit was unfavorably impacted by $28 million as a result of the Bucyrus distribution divestiture activities. This is comprised of $310 million of income (included in Other operating (income) expenses) related to sales transactions, offset by costs incurred related to the Bucyrus distribution divestiture activities of $177 million (included in Selling, general and administrative expenses) and income tax of $161 million.
	Assets sold in 2012 included customer relationship intangibles of $256 million, other assets of $254 million, which consisted primarily of inventory and fixed assets, and allocated goodwill of $405 million related to the divested portions of the Bucyrus distribution business.
	As part of the 2012 divestitures, Cat Financial provided $739 million of financing to five of the Caterpillar dealers.
	In December 2011, we completed one sale transaction whereby we sold a portion of the Bucyrus distribution business to a Caterpillar dealer for $337 million, which includes a $23 million working capital adjustment paid in the third quarter of 2012.  After-tax profit was favorably impacted by $9 million in 2011 as a result of the Bucyrus distribution business divestiture activities. This is comprised of $96 million of income (included in Other operating (income) expenses) primarily related to the sale transaction, offset by costs incurred related to the Bucyrus distribution business divestiture activities of $32 million (included in Selling, general and administrative expenses) and income tax of $55 million.  Assets sold included customer relationship intangibles of $63 million, other assets of $53 million, which consisted primarily of inventory and fixed assets, and allocated goodwill of $101 million.
	As of December 31, 2013, ten divestiture transactions were classified as held for sale and are expected to close in 2014. Current assets held for sale were included in Prepaid expenses and other current assets and non-current assets held for sale were included in Other assets in Statement 3.
	The major classes of assets held for sale for a portion of the Bucyrus distribution business were as follows:
		December 31,
	(Millions of dollars)	2013		2012		2011
	Receivables – trade and other	$	—	$	—	$	25
	Inventories	14		30		109
	Current assets held for sale	$	14	$	30	$	134
	Property, plant and equipment – net	$	5	$	—	$	28
	Intangible assets	44		32		186
	Goodwill	45		52		296
	Non-current assets held for sale	$	94	$	84	$	510
	Third Party Logistics Business Divestiture
	On July 31, 2012, Platinum Equity acquired a 65 percent equity interest in Caterpillar Logistics Services LLC, the third party logistics division of our wholly owned subsidiary, Caterpillar Logistics Inc., for $567 million subject to certain working capital adjustments. The purchase price of $567 million was comprised of a $107 million equity contribution from Platinum Equity to, and third party debt raised by, Caterpillar Logistics Services LLC. The sale of the third party logistics business supports Caterpillar's increased focus on the continuing growth opportunities in its core businesses. Under the terms of the agreement, Caterpillar retained a 35 percent equity interest.
	As a result of the divestiture, we recorded a pretax gain of $278 million (included in Other operating (income) expenses). In addition, we recognized $8 million of incremental incentive compensation expense. The fair value of our retained noncontrolling interest was $58 million, as determined by the $107 million equity contribution from Platinum Equity, and was included in Investments in unconsolidated affiliated companies in Statement 3. The disposal did not qualify as discontinued operations because Caterpillar has significant continuing involvement through its noncontrolling interest. The financial impact of the disposal was reported in the All Other operating segment. Results for our remaining interest will be recorded in Equity in profit (loss) of unconsolidated affiliated companies and are reported in the All Other operating segment.
	The controlling financial interest in Caterpillar Logistics Services LLC was not material to our results of operations, financial position or cash flow.
	Carter Machinery
	In March 2011, we sold 100 percent of the equity in Carter Machinery Company Inc. for $364 million.  Carter Machinery is a Caterpillar dealership headquartered in Salem, Virginia, and has operations and stores covering Virginia and nine counties in southeast West Virginia.  The current senior management of Carter Machinery, which led the buy-out of Carter Machinery from Caterpillar, remained in place.  A retired Caterpillar Vice President is now CEO and principal owner of Carter Machinery.  Caterpillar had owned Carter Machinery since 1988.  Carter Machinery was the only dealership in the United States that was not independently owned.  Continued Caterpillar ownership did not align with our comprehensive business strategy, resulting in the sale.
	As part of the divestiture, Cat Financial provided $348 million of financing to the buyer.  The loan is included in Receivables – finance and Long-term receivables – finance in Statement 3.  We recorded a pre-tax gain of $24 million included in Other operating (income) expenses in Statement 1 and was reported in the All Other operating segment.  The sale did not qualify as discontinued operations because Caterpillar has significant continuing direct cash flows with Carter Machinery after the divestiture.  The sale of Carter Machinery was not material to our results of operations, financial position or cash flow.

Restructuring_Costs

Restructuring Costs	12 Months Ended
	Dec. 31, 2013
Restructuring Charges [Abstract]	'
Restructuring Costs	'
	Restructuring costs
	Restructuring costs for 2013, 2012, and 2011 were $200 million, $94 million and $112 million, respectively, and were recognized in Other operating (income) expenses in Statement 1. The 2013 restructuring costs included $151 million of employee separation costs, $41 million of fixed asset impairments and $8 million of other restructuring costs. The 2012 and 2011 costs were for employee separations.
	The most significant charges in 2013 were for the restructuring of management and support functions and the closure or downsizing of several facilities related to our mining business which is included in the Resource Industries segment. The separation charges in 2012 were primarily in the Power Systems segment and were related to the closure of the Electro-Motive Diesel facility located in London, Ontario and separation programs in Europe. The separation charges in 2011 were primarily in the Resource Industries segment and were related to the acquisition of Bucyrus.
	Our accounting for separations was dependent upon how the particular program was designed.  For voluntary programs, eligible separation costs were recognized at the time of employee acceptance.  For involuntary programs, eligible costs were recognized when management had approved the program, the affected employees had been properly notified and the costs were estimable.
	The following table summarizes the 2011, 2012 and 2013 employee separation activity:
	(Millions of dollars)	Total
	Liability balance at December 31, 2010	$	22
	Increase in liability (separation charges)	112
	Reduction in liability (payments and other adjustments)	(44		)
	Liability balance at December 31, 2011	$	90
	Increase in liability (separation charges)	94
	Reduction in liability (payments and other adjustments)	(155		)
	Liability balance at December 31, 2012	$	29
	Increase in liability (separation charges)	151
	Reduction in liability (payments and other adjustments)	(91		)
	Liability balance at December 31, 2013	$	89
	The remaining liability balance as of December 31, 2013 represents costs for employees that have either not yet separated from the Company or their full severance has not yet been paid.  The majority of these remaining costs are expected to be paid in 2014.
	In December 2013, we announced a restructuring plan for our Gosselies, Belgium facility. This restructuring plan is designed to improve the competitiveness of our European manufacturing footprint and achieve competitiveness in our European operations by refocusing our current Gosselies operations on final machine assembly, test and paint with limited component and fabrication operations. These actions will include reshaping our supply base for more efficient sourcing, improving factory efficiencies and workforce reductions. Our proposals were subject to Belgian Ministerial approval. We estimate the employee cash separation costs to be about $300 million before tax, which represents substantially all of the restructuring costs to be incurred under the plan. In February 2014, our proposals were approved by the Belgian Minister of Employment and we expect to recognize substantially all of these separation-related charges throughout 2014.

Selected_quarterly_financial_r

Selected quarterly financial results (unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Selected quarterly financial results (unaudited)	'
	Selected quarterly financial results (unaudited)
			2013 Quarter 3
	(Dollars in millions except per share data)		1st			2nd			3rd			4th
	Sales and revenues		$	13,210		$	14,621		$	13,423		$	14,402
	Less: Revenues		(726		)	(735		)	(745		)	(756		)
	Sales		12,484			13,886			12,678			13,646
	Cost of goods sold		9,639			10,773			9,774			10,541
	Gross margin		2,845			3,113			2,904			3,105
	Profit 1		$	880		$	960		$	946		$	1,003
	Profit per common share		$	1.34		$	1.48		$	1.48		$	1.57
	Profit per common share–diluted 2		$	1.31		$	1.45		$	1.45		$	1.54
			2012 Quarter 3
			1st			2nd			3rd			4th
	Sales and revenues		$	15,981		$	17,374		$	16,445		$	16,075
	Less: Revenues		(693		)	(690		)	(706		)	(718		)
	Sales		15,288			16,684			15,739			15,357
	Cost of goods sold		11,237			12,280			11,639			11,899
	Gross margin		4,051			4,404			4,100			3,458
	Profit 1, 4		$	1,586		$	1,699		$	1,699		$	697
	Profit per common share 4		$	2.44		$	2.6		$	2.6		$	1.07
	Profit per common share–diluted 2, 4		$	2.37		$	2.54		$	2.54		$	1.04
	1	Profit attributable to common stockholders.
	2	Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.
	3	See Note 24 - Acquisitions and Note 26 - Divestitures and Assets held for sale for additional information.
	4	The fourth quarter 2012 includes a goodwill impairment charge related to Siwei of $580 million.

Subsequent_Event

Subsequent Event	12 Months Ended
	Dec. 31, 2013
Subsequent Event [Abstract]	'
Subsequent Events	'
	Subsequent Event
	In January 2014, we completed the current $7.5 billion stock repurchase program as we entered into a definitive agreement with Citibank, N.A. to purchase shares of our common stock under an accelerated stock repurchase transaction (January ASR Agreement). Pursuant to the terms of the January ASR Agreement, we have agreed to repurchase approximately $1.7 billion of our common stock from Citibank, N.A., with an immediate delivery of approximately 17.7 million shares. The final number of shares to be repurchased and the aggregate cost to Caterpillar will be based on Caterpillar's volume-weighted average stock price during the term of the transaction, which is expected to be completed in March 2014.
	In addition, in January 2014, the Board authorized the repurchase of $10 billion of Caterpillar stock, which will expire on December 31, 2018.

Operations_and_summary_of_sign1

Operations and summary of significant accounting policies (Policies)	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Basis of Presentation, Policy	'
	B.	Basis of presentation
	The consolidated financial statements include the accounts of Caterpillar Inc. and its subsidiaries where we have a controlling financial interest.
	We consolidate all variable interest entities (VIEs) where Caterpillar Inc. is the primary beneficiary.  For VIEs, we assess whether we are the primary beneficiary as prescribed by the accounting guidance on the consolidation of VIEs.  The primary beneficiary of a VIE is the party that has both the power to direct the activities that most significantly impact the entity’s economic performance, and the obligation to absorb losses or the right to receive benefits that could potentially be significant to the VIE.
	Investments in companies that are owned 20 percent to 50 percent or are less than 20 percent owned and for which we have significant influence are accounted for by the equity method.  See Note 9 for further discussion.
	Certain amounts for prior years have been reclassified to conform with the current-year financial statement presentation.
	We have revised previously reported cash flows from operating and financing activities on Statement 5 for the years ended December 31, 2012 and 2011 to correct for the impact of interest payments on certain Cat Financial bank borrowings. Cash provided by operating activities decreased from the amounts previously reported by $57 million and $53 million for the years ended December 31, 2012 and 2011, respectively. Cash provided by financing activities increased by the same amounts for the respective periods. Management has concluded that the impact was not material to any annual period.
	We have also revised previously reported balances on Statement 3 as of December 31, 2012 and 2011 to correct for customer advances invoiced but not yet paid. Receivables - trade and other decreased from the amounts previously reported by $386 million and $228 million as of December 31, 2012 and 2011, respectively. Customer advances decreased from the amounts previously reported by $340 million and $204 million as of December 31, 2012 and 2011, respectively. Other (long-term) liabilities also decreased from the amounts previously reported by $46 million and $24 million as of December 31, 2012 and 2011, respectively. Although the revision did not impact Net cash provided by (used for) operating activities on Statement 5, we have revised the impacted operating cash flow line items for the years ended December 31, 2012 and 2011. Management has concluded that the impact was not material to any period presented.
	Shipping and handling costs are included in Cost of goods sold in Statement 1.  Other operating (income) expenses primarily include Cat Financial’s depreciation of equipment leased to others, Insurance Services’ underwriting expenses, gains (losses) on disposal of long-lived assets and business divestitures, long-lived asset impairment charges, legal settlements, employee separation charges and benefit plan curtailment, settlement and contractual termination benefits.
	Prepaid expenses and other current assets in Statement 3 include prepaid rent, prepaid insurance, assets held for sale, core to be returned for remanufacturing, restricted cash and other short-term investments, and other prepaid items.
Sales and Revenue Recognition, Policy	'
	C.	Sales and revenue recognition
	Sales of Machinery and Power Systems are recognized and earned when all the following criteria are satisfied:  (a) persuasive evidence of a sales arrangement exists; (b) price is fixed and determinable; (c) collectability is reasonably assured; and (d) delivery has occurred.  Persuasive evidence of an arrangement and a fixed or determinable price exist once we receive an order or contract from a customer or independently owned and operated dealer.  We assess collectability at the time of the sale and if collectability is not reasonably assured, the sale is deferred and not recognized until collectability is probable or payment is received.  Typically, where product is produced and sold in the same country, title and risk of ownership transfer when the product is shipped.  Products that are exported from a country for sale typically pass title and risk of ownership at the border of the destination country.
	Sales of certain turbine machinery units, draglines, large shovels and long wall roof supports are recognized under accounting for construction-type contracts, primarily using the percentage-of-completion method.  Revenue is recognized based upon progress towards completion, which is estimated and continually updated over the course of construction.  We provide for any loss that we expect to incur on these contracts when that loss is probable.
	Our remanufacturing operations are primarily focused on the remanufacture of Cat engines and components and rail related products.  In this business, used engines and related components (core) are inspected, cleaned and remanufactured.  In connection with the sale of most of our remanufactured product, we collect a deposit from the dealer that is repaid if the dealer returns an acceptable core within a specified time period.  Caterpillar owns and has title to the cores when they are returned from dealers.  The rebuilt engine or component (the core plus any new content) is then sold as a remanufactured product to dealers and customers.  Revenue is recognized pursuant to the same criteria as machinery and power systems sales noted above (title to the entire remanufactured product passes to the dealer upon sale).  At the time of sale, the deposit is recognized in Other current liabilities in Statement 3.  In addition, the core to be returned is recognized as an asset in Prepaid expenses and other current assets in Statement 3 at the estimated replacement cost (based on historical experience with useable cores).  Upon receipt of an acceptable core, we repay the deposit and relieve the liability.  The returned core is then included in inventory.  In the event that the deposit is forfeited (i.e. upon failure by the dealer to return an acceptable core in the specified time period), we recognize the core deposit and the cost of the core in Sales and Cost of goods sold, respectively.
	No right of return exists on sales of equipment.  Replacement part returns are estimable and accrued at the time a sale is recognized.
	We provide discounts to dealers through merchandising programs.  We have numerous programs that are designed to promote the sale of our products.  The most common dealer programs provide a discount when the dealer sells a product to a targeted end user.  The cost of these discounts is estimated based on historical experience and known changes in merchandising programs and is reported as a reduction to sales when the product sale is recognized.
	Our standard dealer invoice terms are established by marketing region. Our invoice terms for end-user customer sales are established by the responsible business unit. When a sale is made to a dealer, the dealer is responsible for payment even if the product is not sold to an end customer. Dealers and customers must make payment within the established invoice terms to avoid potential interest costs. Interest at or above prevailing market rates may be charged on any past due balance, and generally our practice is to not forgive this interest. In 2013, terms were extended to not more than one year for $706 million of receivables, which represent approximately 1 percent of consolidated sales. In 2012 and 2011, terms were extended to not more than one year for $354 million and $341 million of receivables, respectively, which represent less than 1 percent of consolidated sales.
	We establish a bad debt allowance for Machinery and Power Systems receivables when it becomes probable that the receivable will not be collected.  Our allowance for bad debts is not significant.
	Revenues of Financial Products primarily represent the following Cat Financial revenues:
	•	Retail finance revenue on finance leases and installment sale contracts is recognized over the term of the contract at a constant rate of return on the scheduled outstanding principal balance.  Revenue on retail notes is recognized based on the daily balance of retail receivables outstanding and the applicable effective interest rate.
	•	Operating lease revenue is recorded on a straight-line basis in the period earned over the life of the contract.
	•	Cat Financial provides wholesale inventory financing to dealers. Wholesale finance revenue on installment sale contracts and finance leases related to financing dealer inventory and rental fleets is recognized over the term of the contract at a constant rate of return on the scheduled outstanding principal balance.  Revenue on wholesale notes is recognized based on the daily balance of wholesale receivables outstanding and the applicable effective interest rate.
	•	Loan origination and commitment fees are deferred and amortized to revenue using the interest method over the life of the finance receivables.
	Recognition of income is suspended and the loan or finance lease is placed on non-accrual status when management determines that collection of future income is not probable (generally after 120 days past due except in locations where local regulatory requirements dictate a different method, or instances in which relevant information is known that warrants placing the loan or finance lease on non-accrual status). Accrual is resumed, and previously suspended income is recognized, when the receivable becomes contractually current and/or collection doubts are removed. See Note 6 for more information.
	Sales and revenues are presented net of sales and other related taxes.
Inventories, Policy	'
	D.	Inventories
	Inventories are stated at the lower of cost or market. Cost is principally determined using the last-in, first-out (LIFO) method. The value of inventories on the LIFO basis represented about 60 percent of total inventories at December 31, 2013 and 2012, and about 65 percent at December 31, 2011.
	If the FIFO (first-in, first-out) method had been in use, inventories would have been $2,504 million, $2,750 million and $2,422 million higher than reported at December 31, 2013, 2012 and 2011, respectively.
Depreciation and Amortization, Policy	'
	E.	Depreciation and amortization
	Depreciation of plant and equipment is computed principally using accelerated methods. Depreciation on equipment leased to others, primarily for Financial Products, is computed using the straight-line method over the term of the lease. The depreciable basis is the original cost of the equipment less the estimated residual value of the equipment at the end of the lease term. In 2013, 2012 and 2011, Cat Financial depreciation on equipment leased to others was $768 million, $688 million and $690 million, respectively, and was included in Other operating (income) expenses in Statement 1. In 2013, 2012 and 2011, consolidated depreciation expense was $2,710 million, $2,421 million and $2,240 million, respectively. Amortization of purchased finite-lived intangibles is computed principally using the straight-line method, generally not to exceed a period of 20 years.
Foreign Currency Translation, Policy	'
	F.	Foreign currency translation
	The functional currency for most of our Machinery and Power Systems consolidated companies is the U.S. dollar. The functional currency for most of our Financial Products and affiliates accounted for under the equity method is the respective local currency.  Gains and losses resulting from the remeasurement of foreign currency amounts to the functional currency are included in Other income (expense) in Statement 1. Gains and losses resulting from translating assets and liabilities from the functional currency to U.S. dollars are included in Accumulated other comprehensive income (loss) in Statement 3.
Derivative Financial Instruments, Policy	'
	G.	Derivative financial instruments
	Our earnings and cash flow are subject to fluctuations due to changes in foreign currency exchange rates, interest rates and commodity prices.  Our Risk Management Policy (policy) allows for the use of derivative financial instruments to prudently manage foreign currency exchange rate, interest rate and commodity price exposures. Our policy specifies that derivatives are not to be used for speculative purposes. Derivatives that we use are primarily foreign currency forward, option, and cross currency contracts, interest rate swaps, and commodity forward and option contracts. All derivatives are recorded at fair value.  See Note 3 for more information.
Income Taxes, Policy	'
	H.	Income taxes
	The provision for income taxes is determined using the asset and liability approach taking into account guidance related to uncertain tax positions.  Tax laws require items to be included in tax filings at different times than the items are reflected in the financial statements.  A current liability is recognized for the estimated taxes payable for the current year.  Deferred taxes represent the future tax consequences expected to occur when the reported amounts of assets and liabilities are recovered or paid.  Deferred taxes are adjusted for enacted changes in tax rates and tax laws.  Valuation allowances are recorded to reduce deferred tax assets when it is more likely than not that a tax benefit will not be realized.
Estimates in Financial Statements, Policy	'
	I.	Estimates in financial statements
	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect reported amounts. The more significant estimates include: residual values for leased assets, fair values for goodwill impairment tests, impairment of available-for-sale securities, warranty liability, stock-based compensation and reserves for product liability and insurance losses, postretirement benefits, post-sale discounts, credit losses and income taxes.
Goodwill, Policy	'
	K.	Goodwill
	For acquisitions accounted for as a business combination, goodwill represents the excess of the cost over the fair value of the net assets acquired.  We are required to test goodwill for impairment, at the reporting unit level, annually and when events or circumstances indicate the fair value of a reporting unit may be below its carrying value.  A reporting unit is an operating segment or one level below an operating segment (referred to as a component) to which goodwill is assigned when initially recorded. We assign goodwill to reporting units based on our integration plans and the expected synergies resulting from the acquisition.  Because Caterpillar is a highly integrated company, the businesses we acquire are sometimes combined with or integrated into existing reporting units.  When changes occur in the composition of our operating segments or reporting units, goodwill is reassigned to the affected reporting units based on their relative fair values.
	We test goodwill for impairment annually and whenever events or circumstances make it more likely than not that an impairment may have occurred.  We perform our annual goodwill impairment test as of October 1 and monitor for interim triggering events on an ongoing basis.  Goodwill is reviewed for impairment utilizing a qualitative assessment or a two-step process.  We have an option to make a qualitative assessment of a reporting unit’s goodwill for impairment.  If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary.  For reporting units where we perform the two-step process, the first step requires us to compare the fair value of each reporting unit, which we primarily determine using an income approach based on the present value of discounted cash flows, to the respective carrying value, which includes goodwill.  If the fair value of the reporting unit exceeds its carrying value, the goodwill is not considered impaired.  If the carrying value is higher than the fair value, there is an indication that an impairment may exist and the second step is required.  In step two, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair values assigned to its assets and liabilities.  If the implied fair value of goodwill is less than the carrying value of the reporting unit’s goodwill, the difference is recognized as an impairment loss.  See Note 10 for further details.
Assets Held for Sale, Policy	'
	L.	Assets held for sale
	For those businesses where management has committed to a plan to divest, which is typically demonstrated by approval from the Board of Directors or Group President, each business is valued at the lower of its carrying amount or estimated fair value less cost to sell. If the carrying amount of the business exceeds its estimated fair value, an impairment loss is recognized. The fair values are estimated using accepted valuation techniques such as a discounted cash flow model, valuations performed by third parties, or indicative bids, when available. A number of significant estimates and assumptions are involved in the application of these techniques, including the forecasting of markets and market share, sales volumes and prices, costs and expenses, and multiple other factors. Management considers historical experience and all available information at the time the estimates are made; however, the fair values that are ultimately realized upon the sale of the businesses to be divested may differ from the estimated fair values reflected in the Consolidated Financial Statements.

Derivative_financial_instrumen1

Derivative financial instruments and risk management (Policies)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Risk Management Policy	'
	A.	Foreign currency exchange rate risk
	Foreign currency exchange rate movements create a degree of risk by affecting the U.S. dollar value of sales made and costs incurred in foreign currencies. Movements in foreign currency rates also affect our competitive position as these changes may affect business practices and/or pricing strategies of non-U.S.-based competitors. Additionally, we have balance sheet positions denominated in foreign currencies, thereby creating exposure to movements in exchange rates.
	Our Machinery and Power Systems operations purchase, manufacture and sell products in many locations around the world. As we have a diversified revenue and cost base, we manage our future foreign currency cash flow exposure on a net basis. We use foreign currency forward and option contracts to manage unmatched foreign currency cash inflow and outflow. Our objective is to minimize the risk of exchange rate movements that would reduce the U.S. dollar value of our foreign currency cash flow. Our policy allows for managing anticipated foreign currency cash flow for up to five years.
	We generally designate as cash flow hedges at inception of the contract any Australian dollar, Brazilian real, British pound, Canadian dollar, Chinese yuan, euro, Indian rupee, Japanese yen, Mexican peso, Singapore dollar, or Swiss franc forward or option contracts that meet the requirements for hedge accounting and the maturity extends beyond the current quarter-end. Designation is performed on a specific exposure basis to support hedge accounting. The remainder of Machinery and Power Systems foreign currency contracts are undesignated, including any hedges designed to protect our competitive exposure.
	As of December 31, 2013, $9 million of deferred net gains, net of tax, included in equity (AOCI in Statement 3), are expected to be reclassified to current earnings (Other income (expense) in Statement 1) over the next twelve months when earnings are affected by the hedged transactions.  The actual amount recorded in Other income (expense) will vary based on exchange rates at the time the hedged transactions impact earnings.
	In managing foreign currency risk for our Financial Products operations, our objective is to minimize earnings volatility resulting from conversion and the remeasurement of net foreign currency balance sheet positions, and future transactions denominated in foreign currencies. Our policy allows the use of foreign currency forward, option and cross currency contracts to offset the risk of currency mismatch between our receivables and debt, and exchange rate risk associated with future transactions denominated in foreign currencies. Substantially all such foreign currency forward, option and cross currency contracts are undesignated.
	B.	Interest rate risk
	Interest rate movements create a degree of risk by affecting the amount of our interest payments and the value of our fixed-rate debt. Our practice is to use interest rate derivatives to manage our exposure to interest rate changes and, in some cases, lower the cost of borrowed funds.
	Our Machinery and Power Systems operations generally use fixed rate debt as a source of funding.  Our objective is to minimize the cost of borrowed funds.  Our policy allows us to enter into fixed-to-floating interest rate swaps and forward rate agreements to meet that objective with the intent to designate as fair value hedges at inception of the contract all fixed-to-floating interest rate swaps.  Designation as a hedge of the fair value of our fixed rate debt is performed to support hedge accounting.
	Financial Products operations has a match-funding policy that addresses interest rate risk by aligning the interest rate profile (fixed or floating rate) of Cat Financial’s debt portfolio with the interest rate profile of their receivables portfolio within predetermined ranges on an ongoing basis. In connection with that policy, we use interest rate derivative instruments to modify the debt structure to match assets within the receivables portfolio. This matched funding reduces the volatility of margins between interest-bearing assets and interest-bearing liabilities, regardless of which direction interest rates move.
	Our policy allows us to use fixed-to-floating, floating-to-fixed, and floating-to-floating interest rate swaps to meet the match-funding objective.  We designate fixed-to-floating interest rate swaps as fair value hedges to protect debt against changes in fair value due to changes in the benchmark interest rate.  We designate most floating-to-fixed interest rate swaps as cash flow hedges to protect against the variability of cash flows due to changes in the benchmark interest rate.
	As of December 31, 2013, $3 million of deferred net losses, net of tax, included in equity (AOCI in Statement 3), related to Financial Products floating-to-fixed interest rate swaps, are expected to be reclassified to current earnings (Interest expense of Financial Products in Statement 1) over the next twelve months.  The actual amount recorded in Interest expense of Financial Products will vary based on interest rates at the time the hedged transactions impact earnings.
	We have, at certain times, liquidated fixed-to-floating and floating-to-fixed interest rate swaps at both Machinery and Power Systems and Financial Products.  The gains or losses associated with these swaps at the time of liquidation are amortized into earnings over the original term of the previously designated hedged item.
	In anticipation of issuing debt for the planned acquisition of Bucyrus International, Inc., we entered into interest rate swaps to manage our exposure to interest rate changes.  For the year ended December 31, 2011, we recognized a net loss of $149 million, included in Other income (expense) in Statement 1.  The contracts were liquidated in conjunction with the debt issuance in May 2011.  These contracts were not designated as hedging instruments, and therefore, did not receive hedge accounting treatment.
	C.	Commodity price risk
	Commodity price movements create a degree of risk by affecting the price we must pay for certain raw material. Our policy is to use commodity forward and option contracts to manage the commodity risk and reduce the cost of purchased materials.
	Our Machinery and Power Systems operations purchase base and precious metals embedded in the components we purchase from suppliers.  Our suppliers pass on to us price changes in the commodity portion of the component cost. In addition, we are subject to price changes on energy products such as natural gas and diesel fuel purchased for operational use.
	Our objective is to minimize volatility in the price of these commodities. Our policy allows us to enter into commodity forward and option contracts to lock in the purchase price of a portion of these commodities within a five-year horizon. All such commodity forward and option contracts are undesignated.

Stockbased_compensation_Tables

Stock-based compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule providing assumptions used in determining the fair value of stock-based awards	'
	The following table provides the assumptions used in determining the fair value of the stock-based awards for the years ended December 31, 2013, 2012 and 2011, respectively.
		Grant Year
		2013			2012			2011
	Weighted-average dividend yield	2.1	%		2.2	%		2.2	%
	Weighted-average volatility	30.6	%		35	%		32.7	%
	Range of volatilities	23.4-40.6%			33.3-40.4%			20.9-45.4%
	Range of risk-free interest rates	0.16-1.88%			0.17-2.00%			0.25-3.51%
	Weighted-average expected lives	8 years			7 years			8 years
Schedule of stock-based compensation activity	'
	Please refer to Tables I and II below for additional information on our stock-based awards.
	TABLE I — Financial Information Related to Stock-based Compensation
		2013							2012					2011
		Shares			Weighted-				Shares			Weighted-		Shares		Weighted-
					Average							Average				Average
					Exercise							Exercise				Exercise
					Price							Price				Price
	Stock options/SARs activity:
	Outstanding at beginning of year	45,827,599			$	59.45			50,372,991			$	53.01	57,882,998		$	48.5
	Granted to officers and key employees 1	4,276,060			$	89.75			3,318,188			$	110.09	2,960,595		$	102.13
	Exercised	(6,476,082	)		$	41.1			(7,708,343	)		$	38.73	(10,149,476	)	$	41.78
	Forfeited / expired	(251,830	)		$	84.64			(155,237	)		$	67.5	(321,126	)	$	48.02
	Outstanding at end of year	43,375,747			$	65.03			45,827,599			$	59.45	50,372,991		$	53.01
	Exercisable at year-end	34,200,054			$	55.93			33,962,000			$	51.75	35,523,057		$	52.66
	RSUs activity:
	Outstanding at beginning of year	3,580,220							4,281,490					4,650,241
	Granted to officers and key employees	1,614,870							1,429,939					1,082,032
	Vested	(1,286,934	)						(2,077,485	)				(1,382,539	)
	Forfeited	(84,828	)						(53,724	)				(68,244	)
	Outstanding at end of year	3,823,328							3,580,220					4,281,490
	Stock options/SARs outstanding and exercisable:
			Outstanding											Exercisable
	Exercise Prices		Shares Outstanding at 12/31/13			Weighted-		Weighted-				Aggregate		Shares Outstanding at 12/31/13		Weighted-		Weighted-		Aggregate
						Average		Average				Intrinsic Value 2				Average		Average		Intrinsic Value 2
						Remaining		Exercise Price								Remaining		Exercise Price
						Contractual Life (Years)										Contractual Life (Years)
	$22.17 – 38.63		7,775,953			3.2		$	29.03			$	481	7,775,953		3.2		$	29.03	$	481
	$40.64 – 57.85		11,656,943			4.06		$	52.71			444		11,656,943		4.06		$	52.71	444
	$63.04 – 72.05		9,687,583			2.48		$	69.05			211		9,687,583		2.48		$	69.05	211
	$73.20 – 89.75		8,280,894			6.69		$	81.7			75		4,174,124		4.37		$	73.86	71
	$102.13 – 110.09		5,974,374			7.71		$	106.28			—		905,451		7.62		$	105.59	—
			43,375,747					$	65.03			$	1,211	34,200,054				$	55.93	$	1,207
	1	No SARS were granted during the years ended December 31, 2013 or 2012. Of the 2,960,595 awards granted during the year ended December 31, 2011, 2,722,689 were SARs.
	2	The difference between a stock award’s exercise price and the underlying stock’s market price at December 31, 2013, for awards with market price greater than the exercise price. Amounts are in millions of dollars.
Schedule of financial information related to stock-based compensation	'
	TABLE II— Additional Stock-based Award Information
	(Dollars in millions except per share data)		2013				2012				2011
	Stock Options/SARs activity:
	Weighted-average fair value per share of stock awards granted		$	28.34			$	39.2			$	36.73
	Intrinsic value of stock awards exercised		$	312			$	488			$	618
	Fair value of stock awards vested		$	167			$	66			$	96
	Cash received from stock awards exercised		$	152			$	112			$	161
	RSUs activity:
	Weighted-average fair value per share of stock awards granted		$	84.05			$	104.61			$	97.51
	Fair value of stock awards vested		$	117			$	229			$	143

Derivative_financial_instrumen2

Derivative financial instruments and risk management (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Location and fair value of derivative instruments reported in the Consolidated Financial Position	'
	The location and fair value of derivative instruments reported in Statement 3 are as follows:
	(Millions of dollars)	Consolidated Statement of Financial Position Location		Asset (Liability) Fair Value
				Years ended December 31,
				2013				2012				2011
	Designated derivatives
	Foreign exchange contracts
	Machinery and Power Systems	Receivables — trade and other		$	54			$	28			$	54
	Machinery and Power Systems	Long-term receivables — trade and other		—				—				19
	Machinery and Power Systems	Accrued expenses		(39		)		(66		)		(73		)
	Machinery and Power Systems	Other liabilities		—				—				(10		)
	Interest rate contracts
	Financial Products	Receivables — trade and other		7				17				15
	Financial Products	Long-term receivables — trade and other		115				209				233
	Financial Products	Accrued expenses		(6		)		(8		)		(6		)
				$	131			$	180			$	232
	Undesignated derivatives
	Foreign exchange contracts
	Machinery and Power Systems	Receivables — trade and other		$	19			$	31			$	27
	Machinery and Power Systems	Accrued expenses		(1		)		(63		)		(12		)
	Machinery and Power Systems	Other liabilities		—				—				(85		)
	Financial Products	Receivables — trade and other		7				10				7
	Financial Products	Accrued expenses		(4		)		(6		)		(16		)
	Financial Products	Long-term receivables — trade and other		9				—				—
	Interest rate contracts
	Financial Products	Receivables — trade and other		—				2				—
	Financial Products	Accrued expenses		—				(1		)		(1		)
	Commodity contracts
	Machinery and Power Systems	Receivables — trade and other		—				1				2
	Machinery and Power Systems	Accrued expenses		—				—				(9		)
				$	30			$	(26	)		$	(87	)
Effect of derivatives designated as hedging instruments on Consolidated Results of Operations	'
	The effect of derivatives designated as hedging instruments on Statement 1 is as follows:
	Fair Value Hedges				Year ended December 31, 2013
	(Millions of dollars)		Classification		Gains (Losses)				Gains (Losses)
					on Derivatives				on Borrowings
	Interest rate contracts
	Financial Products		Other income (expense)		$	(107	)		$	114
					$	(107	)		$	114
					Year ended December 31, 2012
			Classification		Gains (Losses)				Gains (Losses)
					on Derivatives				on Borrowings
	Interest rate contracts
	Financial Products		Other income (expense)		$	(20	)		$	36
					$	(20	)		$	36
					Year ended December 31, 2011
			Classification		Gains (Losses)				Gains (Losses)
					on Derivatives				on Borrowings
	Interest rate contracts
	Machinery and Power Systems		Other income (expense)		$	(1	)		$	1
	Financial Products		Other income (expense)		39				(44		)
					$	38			$	(43	)
	Cash Flow Hedges
	(Millions of dollars)		Year ended December 31, 2013
							Recognized in Earnings
			Amount of				Classification of		Amount of Gains (Losses) Reclassified from AOCI to Earnings				Recognized in Earnings (Ineffective Portion)
			Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)
	Foreign exchange contracts
	Machinery and Power Systems		$	(4	)		Other income (expense)		$	(57	)	2	$	—
	Interest rate contracts
	Machinery and Power Systems		—				Other income (expense)		(3		)		—
	Financial Products		(2		)		Interest expense of Financial Products		(6		)		1			1
			$	(6	)				$	(66	)		$	1
			Year ended December 31, 2012
							Recognized in Earnings
			Amount of				Classification of		Amount of				Recognized in Earnings (Ineffective Portion)
			Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)		Gains (Losses)
									Reclassified
									from AOCI to
									Earnings
	Foreign exchange contracts
	Machinery and Power Systems		$	(78	)		Other income (expense)		$	(30	)	2	$	—
	Interest rate contracts
	Financial Products		1				Interest expense of Financial Products		4				(1		)	1
			$	(77	)				$	(26	)		$	(1	)
			Year ended December 31, 2011
							Recognized in Earnings
			Amount of				Classification of		Amount of				Recognized in Earnings (Ineffective Portion)
			Gains (Losses) Recognized in AOCI (Effective Portion)				Gains (Losses)		Gains (Losses)
									Reclassified
									from AOCI to
									Earnings
	Foreign exchange contracts
	Machinery and Power Systems		$	(34	)		Other income (expense)		$	70			$	—
	Interest rate contracts
	Machinery and Power Systems		—				Other income (expense)		(3		)		—
	Financial Products		1				Interest expense of Financial Products		(12		)		(2		)	1
			$	(33	)				$	55			$	(2	)
	1	The ineffective portion recognized in earnings is included in Other income (expense).
	2	Includes $3 million and $7 million of losses reclassified from AOCI to Other income (expense) in 2013 and 2012, respectively as certain derivatives were dedesignated as the related transactions are no longer probable to occur.
Effect of derivatives not designated as hedging instruments on the Consolidated Results of Operations	'
	The effect of derivatives not designated as hedging instruments on Statement 1 is as follows:
					Years ended December 31,
	(Millions of dollars)		Classification of Gains (Losses)		2013				2012				2011
	Foreign exchange contracts
	Machinery and Power Systems		Other income (expense)		$	17			$	62			$	62
	Financial Products		Other income (expense)		8				6				(15		)
	Interest rate contracts
	Machinery and Power Systems		Other income (expense)		(1		)		2				(149		)
	Financial Products		Other income (expense)		(3		)		—				—
	Commodity contracts
	Machinery and Power Systems		Other income (expense)		(3		)		2				(17		)
					$	18			$	72			$	(119	)
Effect of net settlement provisions of the master netting agreements on derivative assets	'
	December 31, 2012														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
	Derivatives
	Machinery & Power Systems		$	60			$	—			$	60			$	(59	)	$	—	$	1
	Financial Products		238				—				238				(12		)	—		226
	Total		$	298			$	—			$	298			$	(71	)	$	—	$	227
	December 31, 2011														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
	Derivatives
	Machinery & Power Systems		$	102			$	—			$	102			$	(102	)	$	—	$	—
	Financial Products		255				—				255				(11		)	—		244
	Total		$	357			$	—			$	357			$	(113	)	$	—	$	244
	The effect of the net settlement provisions of the master netting agreements on our derivative balances upon an event of default or termination event is as follows:
	December 31, 2013														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Assets				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Assets Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Received		Net Amount of Assets
	Derivatives
	Machinery & Power Systems		$	73			$	—			$	73			$	(32	)	$	—	$	41
	Financial Products		138				—				138				(9		)	—		129
	Total		$	211			$	—			$	211			$	(41	)	$	—	$	170
Effect of net settlement provisions of the master netting agreements on derivative liabilities	'
	December 31, 2013														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
	Derivatives
	Machinery & Power Systems		$	(40	)		$	—			$	(40	)		$	32		$	—	$	(8	)
	Financial Products		(10		)		—				(10		)		9			—		(1		)
	Total		$	(50	)		$	—			$	(50	)		$	41		$	—	$	(9	)
	December 31, 2012														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
	Derivatives
	Machinery & Power Systems		$	(129	)		$	—			$	(129	)		$	59		$	—	$	(70	)
	Financial Products		(15		)		—				(15		)		12			—		(3		)
	Total		$	(144	)		$	—			$	(144	)		$	71		$	—	$	(73	)
	December 31, 2011														Gross Amounts Not Offset in the Statement of Financial Position
	(Millions of dollars)		Gross Amount of Recognized Liabilities				Gross Amounts Offset in the Statement of Financial Position				Net Amount of Liabilities Presented in the Statement of Financial Position				Financial Instruments			Cash Collateral Pledged		Net Amount of Liabilities
	Derivatives
	Machinery & Power Systems		$	(189	)		$	—			$	(189	)		$	102		$	—	$	(87	)
	Financial Products		(23		)		—				(23		)		11			—		(12		)
	Total		$	(212	)		$	—			$	(212	)		$	113		$	—	$	(99	)

Other_income_expense_Tables

Other income (expense) (Tables)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Other income (expense)	'
			Years ended December 31,
	(Millions of dollars)		2013			2012			2011
	Investment and interest income		$	84		$	82		$	85
	Foreign exchange gains (losses) 1		(254		)	(116		)	21
	License fee income		114			99			80
	Gains (losses) on sale of securities and affiliated companies		21			4			17
	Impairment of available-for-sale securities		(1		)	(2		)	(5		)
	Miscellaneous income (loss)		1			63			(230		)	2
			$	(35	)	$	130		$	(32	)
	1	Includes gains (losses) from foreign exchange derivative contracts.  See Note 3 for further details.
	2	Miscellaneous income (loss) in 2011 includes forward starting swap costs of $149 million (see Note 3) and bridge financing costs of $54 million (see Note 24), both related to the acquisition of Bucyrus.

Income_taxes_Tables

Income taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Components of profit (loss) before taxes	'
	The components of profit before taxes were:
			Years ended December 31,
	(Millions of dollars)		2013				2012				2011
	U.S.		$	1,938			$	4,090			$	2,250
	Non-U.S.		3,190				4,146				4,475
			$	5,128			$	8,236			$	6,725
Components of the provision (benefit) for income taxes	'
	The components of the provision (benefit) for income taxes were:
			Years ended December 31,
	(Millions of dollars)		2013				2012				2011
	Current tax provision (benefit):
	U.S.		$	407			$	971			$	750
	Non-U.S.		805				1,250				1,014
	State (U.S.)		33				56				72
			1,245				2,277				1,836
	Deferred tax provision (benefit):
	U.S.		79				332				2
	Non-U.S.		(7		)		(89		)		(92		)
	State (U.S.)		2				8				(26		)
			74				251				(116		)
	Total provision (benefit) for income taxes		$	1,319			$	2,528			$	1,720
Reconciliation of the U.S. federal statutory rate to effective rate	'
	Reconciliation of the U.S. federal statutory rate to effective rate:
	(Millions of dollars)		Years ended December 31,
			2013							2012						2011
	Taxes at U.S. statutory rate		$	1,795			35	%		$	2,882			35	%	$	2,354		35	%
	(Decreases) increases in taxes resulting from:
	Non-U.S. subsidiaries taxed at other than 35%		(268		)		(5.2	)%		(342		)		(4.2	)%	(467		)	(6.9	)%
	State and local taxes, net of federal		23				0.4	%		55				0.7	%	30			0.4	%
	Interest and penalties, net of tax		4				0.1	%		22				0.3	%	25			0.4	%
	U.S. research and production incentives		(91		)		(1.8	)%		(80		)		(1.0	)%	(152		)	(2.3	)%
	Other—net		(2		)		—	%		(27		)		(0.3	)%	(7		)	(0.1	)%
			1,461				28.5	%		2,510				30.5	%	1,783			26.5	%
	Prior year tax and interest adjustments		(55		)		(1.1	)%		(300		)		(3.7	)%	41			0.6	%
	Nondeductible goodwill		—				—	%		318				3.9	%	33			0.5	%
	Release of valuation allowances		—				—	%		—				—	%	(24		)	(0.3	)%
	Non-U.S. earnings reinvestment changes		—				—	%		—				—	%	(113		)	(1.7	)%
	Tax law changes		(87		)		(1.7	)%		—				—	%	—			—	%
	Provision (benefit) for income taxes		$	1,319			25.7	%		$	2,528			30.7	%	$	1,720		25.6	%
Deferred income tax assets and liabilities	'
	The amount of deferred income taxes at December 31, included on the following lines in Statement 3, are as follows:
			December 31,
	(Millions of dollars)		2013				2012				2011
	Assets:
	Deferred and refundable income taxes		$	877			$	979			$	1,044
	Noncurrent deferred and refundable income taxes		456				1,863				2,005
			1,333				2,842				3,049
	Liabilities:
	Other current liabilities		86				66				69
	Other liabilities		447				484				559
	Deferred income taxes—net		$	800			$	2,292			$	2,421
	Deferred income tax assets and liabilities:
			December 31,
	(Millions of dollars)		2013				2012				2011
	Deferred income tax assets:
	Pension		$	903			$	2,100			$	2,130
	Postemployment benefits other than pensions		1,435				1,678				1,622
	Tax carryforwards		760				663				821
	Warranty reserves		313				358				338
	Stock-based compensation		320				281				232
	Inventory		112				195				148
	Allowance for credit losses		184				170				131
	Post sale discounts		146				141				141
	Deferred compensation		126				110				102
	Other—net		524				491				537
			4,823				6,187				6,202
	Deferred income tax liabilities:
	Capital and intangible assets		(2,815		)		(2,759		)		(2,866		)
	Bond discount		(240		)		(249		)		(37		)
	Translation		(133		)		(173		)		(193		)
	Undistributed profits of non-U.S. subsidiaries		(90		)		(128		)		(215		)
			(3,278		)		(3,309		)		(3,311		)
	Valuation allowance for deferred tax assets		(745		)		(586		)		(470		)
	Deferred income taxes—net		$	800			$	2,292			$	2,421
Summary of net operating loss carryforwards	'
	At December 31, 2013, amounts and expiration dates of net operating loss carryforwards in various non-U.S. taxing jurisdictions were:
	(Millions of dollars)
	2014				2015				2016				2017			2018-2034			Unlimited		Total
	$	9			$	10			$	13			$	15		$	760		$	1,192	$	1,999
Reconciliation of unrecognized tax benefits	'
	Reconciliation of unrecognized tax benefits: 1
			Years ended December 31,
	(Millions of dollars)		2013				2012				2011
	Balance at January 1,		$	715			$	958			$	789
	Additions for tax positions related to current year		63				64				118
	Additions for tax positions related to prior years		52				178				108
	Reductions for tax positions related to prior years		(31		)		(266		)		(30		)
	Reductions for settlements 2		(15		)		(191		)		—
	Reductions for expiration of statute of limitations		(25		)		(28		)		(27		)
	Balance at December 31,		$	759			$	715			$	958
	Amount that, if recognized, would impact the effective tax rate		$	726			$	669			$	835
	1	Foreign currency translation amounts are included within each line as applicable.
	2	Includes cash payment or other reduction of assets to settle liability.

Cat_Financial_Financing_Activi1

Cat Financial Financing Activities (Tables)	12 Months Ended
	Dec. 31, 2013
Receivables [Abstract]	'
Contractual maturities of outstanding wholesale inventory receivables	'
	Contractual maturities of outstanding wholesale inventory receivables:
	(Millions of dollars)		December 31, 2013
	Amounts Due In		Wholesale				Wholesale				Wholesale				Total
			Installment				Finance				Notes
			Contracts				Leases
	2014		$	258			$	125			$	636			$	1,019
	2015		106				95				231				432
	2016		77				58				150				285
	2017		39				31				18				88
	2018		17				13				5				35
	Thereafter		3				—				—				3
			500				322				1,040				1,862
	Guaranteed residual value		—				90				—				90
	Unguaranteed residual value		—				35				—				35
	Less: Unearned income		(8		)		(31		)		(3		)		(42		)
	Total		$	492			$	416			$	1,037			$	1,945
Contractual maturities of outstanding finance receivables	'
	Contractual maturities of outstanding finance receivables:
	(Millions of dollars)		December 31, 2013
	Amounts Due In		Retail				Retail Finance				Retail				Total
			Installment				Leases				Notes
			Contracts
	2014		$	2,105			$	3,234			$	3,627			$	8,966
	2015		1,627				2,183				2,263				6,073
	2016		1,093				1,292				1,758				4,143
	2017		590				581				1,475				2,646
	2018		198				203				669				1,070
	Thereafter		26				139				1,070				1,235
			5,639				7,632				10,862				24,133
	Guaranteed residual value		—				354				—				354
	Unguaranteed residual value		—				486				—				486
	Less: Unearned income		(93		)		(730		)		(89		)		(912		)
	Total		$	5,546			$	7,742			$	10,773			$	24,061
Impaired loans and finance leases	'
	Individually impaired loans and finance leases for the Customer portfolio segment were as follows:
		December 31, 2013
	(Millions of dollars)	Recorded				Unpaid				Related
		Investment				Principal				Allowance
						Balance
	Impaired Loans and Finance Leases With No Allowance Recorded
	Customer
	North America	$	23			$	22			$	—
	Europe	48				47				—
	Asia Pacific	7				7				—
	Mining	134				134				—
	Latin America	11				11				—
	Caterpillar Power Finance	223				222				—
	Total	$	446			$	443			$	—
	Impaired Loans and Finance Leases With An Allowance Recorded
	Customer
	North America	$	13			$	13			$	4
	Europe	20				19				7
	Asia Pacific	16				16				2
	Mining	—				—				—
	Latin America	23				23				6
	Caterpillar Power Finance	110				106				51
	Total	$	182			$	177			$	70
	Total Impaired Loans and Finance Leases
	Customer
	North America	$	36			$	35			$	4
	Europe	68				66				7
	Asia Pacific	23				23				2
	Mining	134				134				—
	Latin America	34				34				6
	Caterpillar Power Finance	333				328				51
	Total	$	628			$	620			$	70
		December 31, 2012
	(Millions of dollars)	Recorded				Unpaid				Related
		Investment				Principal				Allowance
						Balance
	Impaired Loans and Finance Leases With No Allowance Recorded
	Customer
	North America	$	28			$	27			$	—
	Europe	45				45				—
	Asia Pacific	2				2				—
	Mining	1				1				—
	Latin America	7				7				—
	Caterpillar Power Finance	295				295				—
	Total	$	378			$	377			$	—
	Impaired Loans and Finance Leases With An Allowance Recorded
	Customer
	North America	$	25			$	23			$	7
	Europe	28				26				11
	Asia Pacific	19				19				4
	Mining	—				—				—
	Latin America	30				30				8
	Caterpillar Power Finance	113				109				24
	Total	$	215			$	207			$	54
	Total Impaired Loans and Finance Leases
	Customer
	North America	$	53			$	50			$	7
	Europe	73				71				11
	Asia Pacific	21				21				4
	Mining	1				1				—
	Latin America	37				37				8
	Caterpillar Power Finance	408				404				24
	Total	$	593			$	584			$	54
	December 31, 2011
(Millions of dollars)	Recorded				Unpaid				Related
	Investment				Principal				Allowance
					Balance
Impaired Loans and Finance Leases With No Allowance Recorded
Customer
North America	$	83			$	80			$	—
Europe	47				46				—
Asia Pacific	4				4				—
Mining	8				8				—
Latin America	9				9				—
Caterpillar Power Finance	175				170				—
Total	$	326			$	317			$	—
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America	$	23			$	20			$	6
Europe	22				21				8
Asia Pacific	9				9				3
Mining	—				—				—
Latin America	19				19				4
Caterpillar Power Finance	85				85				13
Total	$	158			$	154			$	34
Total Impaired Loans and Finance Leases
Customer
North America	$	106			$	100			$	6
Europe	69				67				8
Asia Pacific	13				13				3
Mining	8				8				—
Latin America	28				28				4
Caterpillar Power Finance	260				255				13
Total	$	484			$	471			$	34
		Years ended December 31,
		2013								2012							2011
(Millions of dollars)		Average				Interest				Average				Interest			Average			Interest
		Recorded				Income				Recorded				Income			Recorded			Income
		Investment				Recognized				Investment				Recognized			Investment			Recognized
Impaired Loans and Finance Leases With No Allowance Recorded
Customer
North America		$	25			$	3			$	50			$	3		$	91		$	4
Europe		49				1				45				1			11			—
Asia Pacific		4				—				3				—			5			—
Mining		61				3				8				—			8			1
Latin America		11				—				6				—			9			1
Caterpillar Power Finance		271				5				220				2			221			6
Total		$	421			$	12			$	332			$	6		$	345		$	12
Impaired Loans and Finance Leases With An Allowance Recorded
Customer
North America		$	18			$	1			$	25			$	1		$	56		$	2
Europe		22				1				27				1			20			—
Asia Pacific		18				1				15				1			11			1
Mining		1				—				—				—			—			—
Latin America		44				2				27				2			11			—
Caterpillar Power Finance		135				1				94				—			61			—
Total		$	238			$	6			$	188			$	5		$	159		$	3
Total Impaired Loans and Finance Leases
Customer
North America		$	43			$	4			$	75			$	4		$	147		$	6
Europe		71				2				72				2			31			—
Asia Pacific		22				1				18				1			16			1
Mining		62				3				8				—			8			1
Latin America		55				2				33				2			20			1
Caterpillar Power Finance		406				6				314				2			282			6
Total		$	659			$	18			$	520			$	11		$	504		$	15
Investment in loans and finance leases on non-accrual status	'
	The investment in customer loans and finance leases on non-accrual status was as follows:
			December 31,
	(Millions of dollars)		2013				2012				2011
	Customer
	North America		$	26			$	59			$	112
	Europe		28				38				58
	Asia Pacific		50				36				24
	Mining		23				12				12
	Latin America		179				148				108
	Caterpillar Power Finance		119				220				158
	Total		$	425			$	513			$	472
Aging related to loans and finance leases	'
	Aging related to loans and finance leases was as follows:
	(Millions of dollars)		December 31, 2013
			31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
											Days Past Due				Due						Finance		Accruing
																					Receivables
	Customer
	North America		$	37			$	12			$	24			$	73		$	6,508		$	6,581	$	—
	Europe		26				15				29				70			2,805			2,875		6
	Asia Pacific		54				23				59				136			2,752			2,888		11
	Mining		3				—				12				15			2,128			2,143		—
	Latin America		54				25				165				244			2,474			2,718		5
	Caterpillar Power Finance		55				30				60				145			2,946			3,091		—
	Dealer
	North America		—				—				—				—			2,283			2,283		—
	Europe		—				—				—				—			150			150		—
	Asia Pacific		—				—				—				—			583			583		—
	Mining		—				—				—				—			1			1		—
	Latin America		—				—				—				—			748			748		—
	Caterpillar Power Finance		—				—				—				—			—			—		—
	Total		$	229			$	105			$	349			$	683		$	23,378		$	24,061	$	22
	(Millions of dollars)		December 31, 2012
			31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
											Days Past Due				Due						Finance		Accruing
																					Receivables
	Customer
	North America		$	35			$	8			$	52			$	95		$	5,872		$	5,967	$	—
	Europe		23				9				36				68			2,487			2,555		6
	Asia Pacific		53				19				54				126			2,912			3,038		18
	Mining		—				1				12				13			1,960			1,973		—
	Latin America		62				19				138				219			2,500			2,719		—
	Caterpillar Power Finance		15				14				126				155			3,017			3,172		4
	Dealer
	North America		—				—				—				—			2,063			2,063		—
	Europe		—				—				—				—			185			185		—
	Asia Pacific		—				—				—				—			751			751		—
	Mining		—				—				—				—			1			1		—
	Latin America		—				—				—				—			884			884		—
	Caterpillar Power Finance		—				—				—				—			—			—		—
	Total		$	188			$	70			$	418			$	676		$	22,632		$	23,308	$	28
	(Millions of dollars)		December 31, 2011
			31-60 Days Past Due				61-90 Days Past Due				91+				Total Past			Current			Total		91+ Still
											Days Past Due				Due						Finance		Accruing
																					Receivables
	Customer
	North America		$	74			$	39			$	111			$	224		$	5,378		$	5,602	$	9
	Europe		27				11				57				95			2,129			2,224		10
	Asia Pacific		47				23				38				108			2,769			2,877		14
	Mining		—				—				12				12			1,473			1,485		—
	Latin America		32				15				99				146			2,339			2,485		—
	Caterpillar Power Finance		14				16				125				155			2,765			2,920		25
	Dealer
	North America		—				—				—				—			1,689			1,689		—
	Europe		—				—				—				—			57			57		—
	Asia Pacific		—				—				—				—			161			161		—
	Mining		—				—				—				—			—			—		—
	Latin America		—				—				—				—			480			480		—
	Caterpillar Power Finance		—				—				—				—			—			—		—
	Total		$	194			$	104			$	442			$	740		$	19,240		$	19,980	$	58
Allowance for credit losses and recorded investment in finance receivables	'
	An analysis of the allowance for credit losses during 2013, 2012 and 2011 was as follows:
	(Millions of dollars)		December 31, 2013
			Customer				Dealer				Total
	Allowance for Credit Losses:
	Balance at beginning of year		$	414			$	9			$	423
	Receivables written off		(179		)		—				(179		)
	Recoveries on receivables previously written off		56				—				56
	Provision for credit losses		83				1				84
	Other		(9		)		—				(9		)
	Balance at end of year		$	365			$	10			$	375
	Individually evaluated for impairment		$	70			$	—			$	70
	Collectively evaluated for impairment		295				10				305
	Ending Balance		$	365			$	10			$	375
	Recorded Investment in Finance Receivables:
	Individually evaluated for impairment		$	628			$	—			$	628
	Collectively evaluated for impairment		19,668				3,765				23,433
	Ending Balance		$	20,296			$	3,765			$	24,061
	(Millions of dollars)		December 31, 2012
			Customer				Dealer				Total
	Allowance for Credit Losses:
	Balance at beginning of year		$	360			$	6			$	366
	Receivables written off		(149		)		—				(149		)
	Recoveries on receivables previously written off		47				—				47
	Provision for credit losses		157				3				160
	Other		(1		)		—				(1		)
	Balance at end of year		$	414			$	9			$	423
	Individually evaluated for impairment		$	54			$	—			$	54
	Collectively evaluated for impairment		360				9				369
	Ending Balance		$	414			$	9			$	423
	Recorded Investment in Finance Receivables:
	Individually evaluated for impairment		$	593			$	—			$	593
	Collectively evaluated for impairment		18,831				3,884				22,715
	Ending Balance		$	19,424			$	3,884			$	23,308
	(Millions of dollars)		December 31, 2011
			Customer				Dealer				Total
	Allowance for Credit Losses:
	Balance at beginning of year		$	357			$	5			$	362
	Receivables written off		(210		)		—				(210		)
	Recoveries on receivables previously written off		52				—				52
	Provision for credit losses		167				1				168
	Other		(6		)		—				(6		)
	Balance at end of year		$	360			$	6			$	366
	Individually evaluated for impairment		$	34			$	—			$	34
	Collectively evaluated for impairment		326				6				332
	Ending Balance		$	360			$	6			$	366
	Recorded Investment in Finance Receivables:
	Individually evaluated for impairment		$	484			$	—			$	484
	Collectively evaluated for impairment		17,109				2,387				19,496
	Ending Balance		$	17,593			$	2,387			$	19,980
Recorded investment of performing and non-performing finance receivables	'
	The recorded investment in performing and non-performing finance receivables was as follows:
	(Millions of dollars)		December 31, 2013
			Customer				Dealer				Total
	Performing
	North America		$	6,555			$	2,283			$	8,838
	Europe		2,847				150				2,997
	Asia Pacific		2,838				583				3,421
	Mining		2,120				1				2,121
	Latin America		2,539				748				3,287
	Caterpillar Power Finance		2,972				—				2,972
	Total Performing		$	19,871			$	3,765			$	23,636
	Non-Performing
	North America		$	26			$	—			$	26
	Europe		28				—				28
	Asia Pacific		50				—				50
	Mining		23				—				23
	Latin America		179				—				179
	Caterpillar Power Finance		119				—				119
	Total Non-Performing		$	425			$	—			$	425
	Performing & Non-Performing
	North America		$	6,581			$	2,283			$	8,864
	Europe		2,875				150				3,025
	Asia Pacific		2,888				583				3,471
	Mining		2,143				1				2,144
	Latin America		2,718				748				3,466
	Caterpillar Power Finance		3,091				—				3,091
	Total		$	20,296			$	3,765			$	24,061
	(Millions of dollars)		December 31, 2012
			Customer				Dealer				Total
	Performing
	North America		$	5,908			$	2,063			$	7,971
	Europe		2,517				185				2,702
	Asia Pacific		3,002				751				3,753
	Mining		1,961				1				1,962
	Latin America		2,571				884				3,455
	Caterpillar Power Finance		2,952				—				2,952
	Total Performing		$	18,911			$	3,884			$	22,795
	Non-Performing
	North America		$	59			$	—			$	59
	Europe		38				—				38
	Asia Pacific		36				—				36
	Mining		12				—				12
	Latin America		148				—				148
	Caterpillar Power Finance		220				—				220
	Total Non-Performing		$	513			$	—			$	513
	Performing & Non-Performing
	North America		$	5,967			$	2,063			$	8,030
	Europe		2,555				185				2,740
	Asia Pacific		3,038				751				3,789
	Mining		1,973				1				1,974
	Latin America		2,719				884				3,603
	Caterpillar Power Finance		3,172				—				3,172
	Total		$	19,424			$	3,884			$	23,308
	(Millions of dollars)		December 31, 2011
			Customer				Dealer				Total
	Performing
	North America		$	5,490			$	1,689			$	7,179
	Europe		2,166				57				2,223
	Asia Pacific		2,853				161				3,014
	Mining		1,473				—				1,473
	Latin America		2,377				480				2,857
	Caterpillar Power Finance		2,762				—				2,762
	Total Performing		$	17,121			$	2,387			$	19,508
Non-Performing
North America		$	112			$	—			$	112
Europe		58				—				58
Asia Pacific		24				—				24
Mining		12				—				12
Latin America		108				—				108
Caterpillar Power Finance		158				—				158
Total Non-Performing		$	472			$	—			$	472
Performing & Non-Performing
North America		$	5,602			$	1,689			$	7,291
Europe		2,224				57				2,281
Asia Pacific		2,877				161				3,038
Mining		1,485				—				1,485
Latin America		2,485				480				2,965
Caterpillar Power Finance		2,920				—				2,920
Total		$	17,593			$	2,387			$	19,980
Loans and finance receivables modified as TDRs	'
	Loan and finance lease receivables in the Customer portfolio segment modified as TDRs during the years ended December 31, 2013, 2012, and 2011 were as follows:
	(Millions of dollars)		Year ended December 31, 2013
			Number			Pre-TDR				Post-TDR
			of Contracts			Outstanding				Outstanding
						Recorded				Recorded
						Investment				Investment
	Customer
	North America		62			$	9			$	9
	Europe		51			7				7
	Asia Pacific		3			1				1
	Mining		45			123				123
	Latin America		16			2				2
	Caterpillar Power Finance 1		17			153				157
	Total 2		194			$	295			$	299
			Year ended December 31, 2012
			Number			Pre-TDR				Post-TDR
			of Contracts			Outstanding				Outstanding
						Recorded				Recorded
						Investment				Investment
	Customer
	North America		98			$	15			$	15
	Europe		21			8				8
	Asia Pacific		12			3				3
	Mining		—			—				—
	Latin America		41			5				5
	Caterpillar Power Finance 1		27			253				253
	Total 2		199			$	284			$	284
			Year ended December 31, 2011
			Number			Pre-TDR				Post-TDR
			of Contracts			Outstanding				Outstanding
						Recorded				Recorded
						Investment				Investment
	Customer
	North America		71			$	13			$	13
	Europe		7			44				44
	Asia Pacific		—			—				—
	Mining		—			—				—
	Latin America		12			10				10
	Caterpillar Power Finance 1		35			117				117
	Total 2		125			$	184			$	184
	1	During the years ended December 31, 2013, 2012 and 2011, $25 million, $24 million and $15 million, respectively, of additional funds were subsequently loaned to a borrower whose terms had been modified in a TDR. The $25 million, $24 million and $15 million of additional funds are not reflected in the table above as no incremental modifications have been made with the borrower during the periods presented. At December 31, 2013, remaining commitments to lend additional funds to a borrower whose terms have been modified in a TDR were $6 million.
	2	Modifications include extended contract maturities, inclusion of interest only periods, below market interest rates, and extended skip payment periods.
TDRs with a payment default which had been modified within twelve months prior to the default date	'
	TDRs in the Customer portfolio segment with a payment default during the years ended December 31, 2013, 2012, and 2011 which had been modified within twelve months prior to the default date, were as follows:
	(Millions of dollars)		Year ended December 31, 2013							Year ended December 31, 2012							Year ended December 31, 2011
			Number			Post-TDR				Number			Post-TDR				Number		Post-TDR
			of Contracts			Recorded				of Contracts			Recorded				of Contracts		Recorded
						Investment							Investment						Investment
	Customer
	North America		19			$	4			49			$	4			48		$	26
	Europe		5			—				—			—				1		1
	Asia Pacific		—			—				2			1				—		—
	Mining		—			—				—			—				—		—
	Latin America		—			—				—			—				7		4
	Caterpillar Power Finance		2			3				16			21				14		70
	Total		26			$	7			67			$	26			70		$	101

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories (principally using the LIFO method) are comprised of the following:
		December 31,
	(Millions of dollars)	2013		2012		2011
	Raw materials	$	2,966	$	3,573	$	3,766
	Work-in-process	2,589		2,920		2,959
	Finished goods	6,785		8,767		7,562
	Supplies	285		287		257
	Total inventories	$	12,625	$	15,547	$	14,544

Property_plant_and_equipment_T

Property, plant and equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
					December 31,
	(Millions of dollars)		Useful		2013				2012				2011
			Lives (Years)
	Land		—		$	688			$	723			$	753
	Buildings and land improvements		20-45		6,928				6,214				5,857
	Machinery, equipment and other		10-Mar		16,793				16,073				14,435
	Equipment leased to others		10-Jan		5,365				4,658				4,285
	Construction-in-process		—		1,542				2,264				1,996
	Total property, plant and equipment, at cost				31,316				29,932				27,326
	Less: Accumulated depreciation				(14,241		)		(13,471		)		(12,931		)
	Property, plant and equipment–net				$	17,075			$	16,461			$	14,395
Assets recorded under capital leases	'
	Assets recorded under capital leases: 1
			December 31,
	(Millions of dollars)		2013				2012				2011
	Gross capital leases 2		$	125			$	134			$	131
	Less: Accumulated depreciation		(50		)		(58		)		(75		)
	Net capital leases		$	75			$	76			$	56
	1	Included in Property, plant and equipment table above.
	2	Consists primarily of machinery and equipment.
Scheduled minimum rental payments on assets recorded under capital leases	'
	At December 31, 2013, scheduled minimum rental payments on assets recorded under capital leases were:
	(Millions of dollars)
	2014				2015				2016				2017			2018		Thereafter
	$	10			$	14			$	22			$	7		$	7	$	47
Equipment leased to others	'
	Equipment leased to others (primarily by Cat Financial):
			December 31,
	(Millions of dollars)		2013				2012				2011
	Equipment leased to others–at original cost		$	5,365			$	4,658			$	4,285
	Less: Accumulated depreciation		(1,521		)		(1,383		)		(1,406		)
	Equipment leased to others–net		$	3,844			$	3,275			$	2,879
Scheduled minimum rental payments to be received for equipment leased to others	'
	At December 31, 2013, scheduled minimum rental payments to be received for equipment leased to others were:
	(Millions of dollars)
	2014				2015				2016				2017			2018		Thereafter
	$	916			$	626			$	379			$	191		$	95	$	45

Investments_in_unconsolidated_1

Investments in unconsolidated affiliated companies (Tables)	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Results of Operations of unconsolidated affiliated companies	'
	Combined financial information of the unconsolidated affiliated companies accounted for by the equity method (generally on a lag of 3 months or less) was as follows:
	Results of Operations of unconsolidated affiliated companies:
		Years ended December 31,
	(Millions of dollars)	2013			2012		2011
	Results of Operations:
	Sales	$	1,336		$	1,084	$	966
	Cost of sales	1,048			872		797
	Gross profit	$	288		$	212	$	169
	Profit (loss)	$	(28	)	$	28	$	(46	)
Financial Position of unconsolidated affiliated companies	'
	Financial Position of unconsolidated affiliated companies:
		December 31,
	(Millions of dollars)	2013			2012		2011
	Financial Position:
	Assets:
	Current assets	$	683		$	715	$	345
	Property, plant and equipment–net	710			529		200
	Other assets	608			616		9
		2,001			1,860		554
	Liabilities:
	Current liabilities	437			443		220
	Long-term debt due after one year	900			708		72
	Other liabilities	262			170		17
		1,599			1,321		309
	Equity	$	402		$	539	$	245
Caterpillar's investments in unconsolidated affiliated companies	'
	Caterpillar’s investments in unconsolidated affiliated companies:
		December 31,
	(Millions of dollars)	2013			2012		2011
	Investments in equity method companies	$	262		$	256	$	111
	Plus: Investments in cost method companies	10			16		22
	Total investments in unconsolidated affiliated companies	$	272		$	272	$	133

Intangible_assets_and_goodwill1

Intangible assets and goodwill (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Intangible assets	'
	Intangible assets are comprised of the following:
					December 31, 2013
	(Millions of dollars)		Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,653			$	(539	)		$	2,114
	Intellectual property		11		1,821				(495		)		1,326
	Other		10		274				(136		)		138
	Total finite-lived intangible assets		13		4,748				(1,170		)		3,578
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,766			$	(1,170	)		$	3,596
					December 31, 2012
			Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,756			$	(377	)		$	2,379
	Intellectual property		12		1,767				(342		)		1,425
	Other		10		299				(105		)		194
	Total finite-lived intangible assets		13		4,822				(824		)		3,998
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,840			$	(824	)		$	4,016
					December 31, 2011
			Weighted		Gross				Accumulated				Net
			Amortizable		Carrying				Amortization
			Life (Years)		Amount
	Customer relationships		15		$	2,811			$	(213	)		$	2,598
	Intellectual property		11		1,794				(244		)		1,550
	Other		11		299				(97		)		202
	Total finite-lived intangible assets		13		4,904				(554		)		4,350
	Indefinite-lived intangible assets - In-process research & development				18				—				18
	Total intangible assets				$	4,922			$	(554	)		$	4,368
Expected amortization expense related to intangible assets	'
	As of December 31, 2013, amortization expense related to intangible assets is expected to be:
	(Millions of dollars)
	2014				2015				2016				2017				2018				Thereafter
	$	365			$	354			$	333			$	331			$	327			$	1,886
Goodwill	'
	The changes in carrying amount of goodwill by reportable segment for the years ended December 31, 2013, 2012 and 2011 were as follows:
	(Millions of dollars)		December 31, 2012				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2013
	Construction Industries
	Goodwill		$	382			$	—			$	—			$	—			$	(56	)		$	326
	Resource Industries
	Goodwill		4,559				—				(55		)		—				11				4,515
	Impairments		(602		)		—				—				—				—				(602		)
	Net goodwill		3,957				—				(55		)		—				11				3,913
	Power Systems
	Goodwill		2,486				106				(10		)		—				18				2,600
	All Other 4
	Goodwill		117				—				—				—				—				117
	Consolidated total
	Goodwill		7,544				106				(65		)		—				(27		)		7,558
	Impairments		(602		)		—				—				—				—				(602		)
	Net goodwill		$	6,942			$	106			$	(65	)		$	—			$	(27	)		$	6,956
			December 31, 2011				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2012
	Construction Industries
	Goodwill		$	378			$	22			$	—			$	—			$	(18	)		$	382
	Resource Industries
	Goodwill		4,121				597				(181		)		—				22				4,559
	Impairments		(22		)		—				—				(580		)		—				(602		)
	Net goodwill		4,099				597				(181		)		(580		)		22				3,957
	Power Systems
	Goodwill		2,486				9				—				—				(9		)		2,486
	All Other 4
	Goodwill		117				—				—				—				—				117
	Consolidated total
	Goodwill		7,102				628				(181		)		—				(5		)		7,544
	Impairments		(22		)		—				—				(580		)		—				(602		)
	Net goodwill		$	7,080			$	628			$	(181	)		$	(580	)		$	(5	)		$	6,942
			December 31, 2010				Acquisitions 1				Held for Sale and Business Divestitures 2				Impairment Loss				Other Adjustments 3				December 31, 2011
	Construction Industries
	Goodwill		$	357			$	—			$	—			$	—			$	21			$	378
	Resource Industries
	Goodwill		73				4,616				(397		)		—				(171		)		4,121
	Impairments		(22		)		—				—				—				—				(22		)
	Net goodwill		51				4,616				(397		)		—				(171		)		4,099
	Power Systems
	Goodwill		2,077				410				—				—				(1		)		2,486
	All Other 4
	Goodwill		129				—				(12		)		—				—				117
	Consolidated total
	Goodwill		2,636				5,026				(409		)		—				(151		)		7,102
	Impairments		(22		)		—				—				—				—				(22		)
	Net goodwill		$	2,614			$	5,026			$	(409	)		$	—			$	(151	)		$	7,080
	1	See Note 24 for additional information.
	2	See Note 26 for additional information.
	3	Other adjustments are comprised primarily of foreign currency translation.
	4	Includes All Other operating segment (See Note 23).

Availableforsale_securities_Ta

Available-for-sale securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Schedule of available-for-sale securities	'
			December 31, 2013							December 31, 2012							December 31, 2011
	(Millions of dollars)		Cost		Unrealized			Fair		Cost		Unrealized			Fair		Cost		Unrealized			Fair
			Basis		Pretax Net			Value		Basis		Pretax Net			Value		Basis		Pretax Net			Value
					Gains							Gains							Gains
					(Losses)							(Losses)							(Losses)
	Government debt
	U.S. treasury bonds		$	10	$	—		$	10	$	10	$	—		$	10	$	10	$	—		$	10
	Other U.S. and non-U.S. government bonds		119		1			120		144		2			146		90		2			92
	Corporate bonds
	Corporate bonds		612		21			633		626		38			664		542		30			572
	Asset-backed securities		72		—			72		96		—			96		112		(1		)	111
	Mortgage-backed debt securities
	U.S. governmental agency		322		(1		)	321		291		8			299		297		13			310
	Residential		18		—			18		26		(1		)	25		33		(3		)	30
	Commercial		87		6			93		117		10			127		142		3			145
	Equity securities
	Large capitalization value		173		81			254		147		38			185		127		21			148
	Smaller company growth		25		24			49		22		12			34		22		7			29
	Total		$	1,438	$	132		$	1,570	$	1,479	$	107		$	1,586	$	1,375	$	72		$	1,447
Investments in an unrealized loss position that are not other-than-temporarily impaired	'
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2013
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Corporate bonds		$	159	$	2		$	1	$	—	$	160		$	2
	Asset-backed securities		6		—			20		1		26			1
	Mortgage-backed debt securities
	U.S. governmental agency		140		4			65		2		205			6
	Total		$	305	$	6		$	86	$	3	$	391		$	9
	1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2012
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Asset-backed securities		$	—	$	—		$	20	$	3	$	20		$	3
	Mortgage-backed debt securities
	U.S. governmental agency		84		1			15		—		99			1
	Residential		—		—			14		1		14			1
	Equity securities
	Large capitalization value		25		2			10		1		35			3
	Total		$	109	$	3		$	59	$	5	$	168		$	8
	1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
	Investments in an unrealized loss position that are not other-than-temporarily impaired:
			December 31, 2011
			Less than 12 months 1					12 months or more 1				Total
	(Millions of dollars)		Fair		Unrealized			Fair		Unrealized		Fair			Unrealized
			Value		Losses			Value		Losses		Value			Losses
	Corporate bonds
	Corporate bonds		$	54	$	1		$	1	$	—	$	55		$	1
	Asset-backed securities		1		—			20		5		21			5
	Mortgage-backed debt securities
	U.S. governmental agency		51		1			—		—		51			1
	Residential		3		—			18		3		21			3
	Commercial		15		—			8		1		23			1
	Equity securities
	Large capitalization value		36		5			6		1		42			6
	Smaller company growth		4		1			—		—		4			1
	Total		$	164	$	8		$	53	$	10	$	217		$	18
	1	Indicates length of time that individual securities have been in a continuous unrealized loss position.
Cost basis and fair value of the available-for-sale debt securities by contractual maturity	'
			December 31, 2013
	(Millions of dollars)		Cost Basis		Fair Value
	Due in one year or less		$	187	$	188
	Due after one year through five years		572		592
	Due after five years through ten years		24		25
	Due after ten years		30		30
	U.S. governmental agency mortgage-backed securities		322		321
	Residential mortgage-backed securities		18		18
	Commercial mortgage-backed securities		87		93
	Total debt securities – available-for-sale		$	1,240	$	1,267
Schedule of proceeds and gross gain and losses from the sale of available-for-sale securities	'
	Sales of Securities:
			Years Ended December 31,
	(Millions of dollars)		2013		2012			2011
	Proceeds from the sale of available-for-sale securities		$	449	$	306		$	247
	Gross gains from the sale of available-for-sale securities		$	22	$	6		$	4
	Gross losses from the sale of available-for-sale securities		$	2	$	—		$	1

Postemployment_benefit_plans_T

Postemployment benefit plans (Tables)	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Change in benefit obligation and assumptions used to determine benefit obligation	'
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement
																					Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Change in benefit obligation:
	Benefit obligation, beginning of year		$	15,913		$	14,782		$	13,024		$	4,737		$	4,299		$	3,867		$	5,453		$	5,381		$	5,184
	Service cost		196			185			158			120			108			115			108			92			84
	Interest cost		581			609			651			166			182			182			195			221			253
	Plan amendments		—			—			1			—			12			(24		)	1			(38		)	(121		)
	Actuarial losses (gains)		(1,450		)	1,168			1,635			(41		)	385			312			(658		)	186			306
	Foreign currency exchange rates		—			—			—			(81		)	49			(32		)	(19		)	(11		)	(19		)
	Participant contributions		—			—			—			10			9			9			57			48			44
	Benefits paid - gross		(845		)	(831		)	(823		)	(254		)	(190		)	(187		)	(339		)	(394		)	(388		)
	Less: federal subsidy on benefits paid		—			—			—			—			—			—			8			16			14
	Curtailments, settlements and termination benefits		(7		)	—			(3		)	(56		)	(67		)	(83		)	—			(48		)	(6		)
	Acquisitions, divestitures and other 1		31			—			139			8			(50		)	140			(22		)	—			30
	Benefit obligation, end of year		$	14,419		$	15,913		$	14,782		$	4,609		$	4,737		$	4,299		$	4,784		$	5,453		$	5,381
	Accumulated benefit obligation, end of year		$	14,056		$	15,132		$	14,055		$	4,247		$	4,329		$	3,744
	Weighted-average assumptions used to determine benefit obligation:
	Discount rate 2		4.6		%	3.7		%	4.3		%	4.1		%	3.7		%	4.3		%	4.6		%	3.7		%	4.3		%
	Rate of compensation increase 2		4		%	4.5		%	4.5		%	4.2		%	3.9		%	3.9		%	4		%	4.4		%	4.4		%
	1	In 2013, charge to recognize a previously unrecorded liability related to a subsidiary's pension plans and an adjustment to other postretirement benefits related to certain other benefits. See Note 26 regarding the divestiture of the third party logistics business in 2012 and Note 24 for the acquisition of Bucyrus International in 2011.
	2	End of year rates are used to determine net periodic cost for the subsequent year. See Note 12E.
Effects of one-percentage point change in the assumed health care cost trend rates	'
	A one-percentage-point change in assumed health care cost trend rates would have the following effects:
	(Millions of dollars)		One-percentage-			One-percentage-
			point increase			point decrease
	Effect on 2013 service and interest cost components of other postretirement benefit cost		$	26		$	(22	)
	Effect on accumulated postretirement benefit obligation		$	274		$	(230	)
Change in plan assets	'
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement
																					Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Change in plan assets:
	Fair value of plan assets, beginning of year		$	10,981		$	9,997		$	10,760		$	3,426		$	2,818		$	2,880		$	789		$	814		$	996
	Actual return on plan assets		1,722			1,235			(270		)	535			368			(83		)	158			117			(45		)
	Foreign currency exchange rates		—			—			—			(41		)	47			(1		)	—			—			—
	Company contributions		541			580			212			303			446			234			157			204			207
	Participant contributions		—			—			—			10			9			9			57			48			44
	Benefits paid		(845		)	(831		)	(823		)	(254		)	(190		)	(187		)	(339		)	(394		)	(388		)
	Settlements and termination benefits		(4		)	—			—			(30		)	(72		)	(41		)	—			—			—
	Acquisitions / other 1		—			—			118			—			—			7			—			—			—
	Fair value of plan assets, end of year		$	12,395		$	10,981		$	9,997		$	3,949		$	3,426		$	2,818		$	822		$	789		$	814
	1	See Note 24 regarding Bucyrus International in 2011.
Fair value of pension and other postretirement benefit plan assets, by category	'
	The fair value of the pension and other postretirement benefit plan assets by category is summarized below:
			December 31, 2013
	(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
												at Fair Value
	U.S. Pension
	Equity securities:
	U.S. equities		$	4,337		$	—		$	129		$	4,466
	Non-U.S. equities		3,058			—			—			3,058
	Fixed income securities:
	U.S. corporate bonds		—			2,123			34			2,157
	Non-U.S. corporate bonds		—			327			20			347
	U.S. government bonds		—			774			—			774
	U.S. governmental agency mortgage-backed securities		—			905			—			905
	Non-U.S. government bonds		—			52			—			52
	Real estate		—			—			8			8
	Cash, short-term instruments and other		22			606			—			628
	Total U.S. pension assets		$	7,417		$	4,787		$	191		$	12,395
			December 31, 2012
	(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
												at Fair Value
	U.S. Pension
	Equity securities:
	U.S. equities		$	4,460		$	3		$	98		$	4,561
	Non-U.S. equities		2,691			2			—			2,693
	Fixed income securities:
	U.S. corporate bonds		—			1,490			23			1,513
	Non-U.S. corporate bonds		—			231			10			241
	U.S. government bonds		—			694			8			702
	U.S. governmental agency mortgage-backed securities		—			794			1			795
	Non-U.S. government bonds		—			33			3			36
	Real estate		—			—			8			8
	Cash, short-term instruments and other		13			419			—			432
	Total U.S. pension assets		$	7,164		$	3,666		$	151		$	10,981
			December 31, 2011
	(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
												at Fair Value
	U.S. Pension
	Equity securities:
	U.S. equities		$	4,314		$	—		$	77		$	4,391
	Non-U.S. equities		2,366			—			—			2,366
	Fixed income securities:
	U.S. corporate bonds		—			1,178			35			1,213
	Non-U.S. corporate bonds		—			143			6			149
	U.S. government bonds		—			462			7			469
	U.S. governmental agency mortgage-backed securities		—			891			3			894
	Non-U.S. government bonds		—			31			—			31
	Real estate		—			—			8			8
	Cash, short-term instruments and other		48			428			—			476
	Total U.S. pension assets		$	6,728		$	3,133		$	136		$	9,997
			December 31, 2013
	(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
												at Fair Value
	Non-U.S. Pension
	Equity securities:
	U.S. equities		$	607		$	1		$	—		$	608
	Non-U.S. equities		1,022			160			—			1,182
	Global equities 1		235			54			—			289
	Fixed income securities:
	U.S. corporate bonds		—			84			9			93
	Non-U.S. corporate bonds		—			534			12			546
	U.S. government bonds		—			3			—			3
	Non-U.S. government bonds		—			418			—			418
	Global fixed income 1		—			397			—			397
Real estate		—			136			111			247
Cash, short-term instruments and other 2		141			25			—			166
Total non-U.S. pension assets		$	2,005		$	1,812		$	132		$	3,949
		December 31, 2012
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Non-U.S. Pension
Equity securities:
U.S. equities		$	436		$	2		$	—		$	438
Non-U.S. equities		1,038			118			—			1,156
Global equities 1		244			27			—			271
Fixed income securities:
U.S. corporate bonds		—			37			3			40
Non-U.S. corporate bonds		—			494			2			496
U.S. government bonds		—			3			—			3
Non-U.S. government bonds		—			169			—			169
Global fixed income 1		—			403			—			403
Real estate		—			114			104			218
Cash, short-term instruments and other 2		185			47			—			232
Total non-U.S. pension assets		$	1,903		$	1,414		$	109		$	3,426
		December 31, 2011
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Non-U.S. Pension
Equity securities:
U.S. equities		$	356		$	1		$	—		$	357
Non-U.S. equities		822			84			—			906
Global equities 1		198			40			—			238
Fixed income securities:
U.S. corporate bonds		—			16			4			20
Non-U.S. corporate bonds		—			395			5			400
U.S. government bonds		—			3			—			3
Non-U.S. government bonds		—			200			—			200
Global fixed income 1		—			363			—			363
Real estate		—			100			97			197
Cash, short-term instruments and other 2		109			25			—			134
Total non-U.S. pension assets		$	1,485		$	1,227		$	106		$	2,818
1	Includes funds that invest in both U.S. and non-U.S. securities.
2	Includes funds that invest in multiple asset classes, hedge funds and other.
		December 31, 2013
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	388		$	—		$	—		$	388
Non-U.S. equities		189			—			—			189
Fixed income securities:
U.S. corporate bonds		—			101			—			101
Non-U.S. corporate bonds		—			17			—			17
U.S. government bonds		—			23			—			23
U.S. governmental agency mortgage-backed securities		—			49			—			49
Non-U.S. government bonds		—			2			—			2
Cash, short-term instruments and other		8			45			—			53
Total other postretirement benefit assets		$	585		$	237		$	—		$	822
		December 31, 2012
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	387		$	—		$	—		$	387
Non-U.S. equities		194			—			—			194
Fixed income securities:
U.S. corporate bonds		—			70			—			70
Non-U.S. corporate bonds		—			11			—			11
U.S. government bonds		—			27			—			27
U.S. governmental agency mortgage-backed securities		—			33			—			33
Non-U.S. government bonds		—			2			—			2
Cash, short-term instruments and other		18			47			—			65
Total other postretirement benefit assets		$	599		$	190		$	—		$	789
		December 31, 2011
(Millions of dollars)		Level 1			Level 2			Level 3			Total Assets,
											at Fair Value
Other Postretirement Benefits
Equity securities:
U.S. equities		$	410		$	—		$	—		$	410
Non-U.S. equities		191			—			—			191
Fixed income securities:
U.S. corporate bonds		—			67			—			67
Non-U.S. corporate bonds		—			8			—			8
U.S. government bonds		—			21			—			21
U.S. governmental agency mortgage-backed securities		—			47			—			47
Non-U.S. government bonds		—			1			—			1
Cash, short-term instruments and other		4			65			—			69
Total other postretirement benefit assets		$	605		$	209		$	—		$	814
Roll forward of assets measured at fair value using level 3 inputs	'
	Below are roll-forwards of assets measured at fair value using Level 3 inputs for the years ended December 31, 2013, 2012 and 2011.  These instruments were valued using pricing models that, in management’s judgment, reflect the assumptions a market participant would use.
	(Millions of dollars)		Equities			Fixed Income			Real Estate			Other
	U.S. Pension
	Balance at December 31, 2010		$	50		$	48		$	10		$	—
	Unrealized gains (losses)		(4		)	(2		)	(2		)	—
	Realized gains (losses)		1			—			—			—
	Purchases, issuances and settlements, net		30			17			—			—
	Transfers in and/or out of Level 3		—			(12		)	—			—
	Balance at December 31, 2011		$	77		$	51		$	8		$	—
	Unrealized gains (losses)		(4		)	—			—			(1		)
	Realized gains (losses)		4			2			—			—
	Purchases, issuances and settlements, net		21			(4		)	—			1
	Transfers in and/or out of Level 3		—			(4		)	—			—
	Balance at December 31, 2012		$	98		$	45		$	8		$	—
	Unrealized gains (losses)		10			(1		)	—			—
	Realized gains (losses)		4			—			—			—
	Purchases, issuances and settlements, net		17			12			—			—
	Transfers in and/or out of Level 3		—			(2		)	—			—
	Balance at December 31, 2013		$	129		$	54		$	8		$	—
	Non-U.S. Pension
	Balance at December 31, 2010		$	1		$	8		$	90		$	35
	Unrealized gains (losses)		—			1			7			—
	Realized gains (losses)		—			—			—			3
	Purchases, issuances and settlements, net		(1		)	—			—			(38		)
	Transfers in and/or out of Level 3		—			—			—			—
	Balance at December 31, 2011		$	—		$	9		$	97		$	—
	Unrealized gains (losses)		—			—			8			—
	Realized gains (losses)		—			—			—			—
	Purchases, issuances and settlements, net		—			(1		)	(1		)	—
	Transfers in and/or out of Level 3		—			(3		)	—			—
	Balance at December 31, 2012		$	—		$	5		$	104		$	—
	Unrealized gains (losses)		—			—			7			—
	Realized gains (losses)		—			—			—			—
	Purchases, issuances and settlements, net		—			16			—			—
	Transfers in and/or out of Level 3		—			—			—			—
	Balance at December 31, 2013		$	—		$	21		$	111		$	—
Common stock of Caterpillar Inc. included in Equity Securities within plan assets	'
	Equity securities within plan assets include Caterpillar Inc. common stock in the amounts of:
			U.S. Pension Benefits 1									Non-U.S. Pension Benefits									Other Postretirement
																					Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Caterpillar Inc. common stock		$	495		$	597		$	653		$	—		$	1		$	1		$	—		$	1		$	1
	1	Amounts represent 4 percent, 5 percent and 7 percent of total plan assets for 2013, 2012 and 2011, respectively.
Defined benefit plan funded status, components of net amount recognized in financial position and accumulated other comprehensive income	'
	The funded status of the plans, reconciled to the amount reported on Statement 3, is as follows:
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	End of Year
	Fair value of plan assets		$	12,395		$	10,981		$	9,997		$	3,949		$	3,426		$	2,818		$	822		$	789		$	814
	Benefit obligations		14,419			15,913			14,782			4,609			4,737			4,299			4,784			5,453			5,381
	Over (under) funded status recognized in financial position		$	(2,024	)	$	(4,932	)	$	(4,785	)	$	(660	)	$	(1,311	)	$	(1,481	)	$	(3,962	)	$	(4,664	)	$	(4,567	)
	Components of net amount recognized in financial position:
	Other assets (non-current asset)		$	5		$	—		$	—		$	123		$	30		$	3		$	—		$	—		$	—
	Accrued wages, salaries and employee benefits (current liability)		(26		)	(23		)	(21		)	(29		)	(27		)	(26		)	(169		)	(169		)	(171		)
	Liability for postemployment benefits (non-current liability)		(2,003		)	(4,909		)	(4,764		)	(754		)	(1,314		)	(1,458		)	(3,793		)	(4,495		)	(4,396		)
	Net liability recognized		$	(2,024	)	$	(4,932	)	$	(4,785	)	$	(660	)	$	(1,311	)	$	(1,481	)	$	(3,962	)	$	(4,664	)	$	(4,567	)
	Amounts recognized in Accumulated other comprehensive income (pre-tax) consist of:
	Net actuarial loss (gain)		$	4,396		$	7,286		$	7,044		$	1,373		$	1,907		$	1,712		$	662		$	1,528		$	1,495
	Prior service cost (credit)		19			36			63			13			22			15			(84		)	(159		)	(188		)
	Transition obligation (asset)		—			—			—			—			—			—			—			3			5
	Total		$	4,415		$	7,322		$	7,107		$	1,386		$	1,929		$	1,727		$	578		$	1,372		$	1,312
Estimated amounts that will be amortized from Accumulated other comprehensive income (loss) into net periodic benefit cost (pre-tax) in the next fiscal year	'
	The estimated amounts that will be amortized from Accumulated other comprehensive income (loss) at December 31, 2013 into net periodic benefit cost (pre-tax) in 2014 are as follows:
	(Millions of dollars)		U.S.			Non-U.S.			Other
			Pension Benefits			Pension Benefits			Postretirement
									Benefits
	Net actuarial loss (gain)		$	392		$	86		$	41
	Prior service cost (credit)		17			1			(54		)
	Transition obligation (asset)		—			—			—
	Total		$	409		$	87		$	(13	)
Schedule of pension plans with projected benefit obligation in excess of plan assets for all U.S and Non U.S Pension benefits	'
	The following amounts relate to our pension plans with projected benefit obligations in excess of plan assets:
			U.S. Pension Benefits at Year-end									Non-U.S. Pension Benefits at Year-end
	(Millions of dollars)		2013			2012			2011			2013			2012			2011
	Projected benefit obligation		$	14,352		$	15,913		$	14,782		$	4,177		$	4,310		$	4,293
	Accumulated benefit obligation		$	13,989		$	15,132		$	14,055		$	3,820		$	3,903		$	3,738
	Fair value of plan assets		$	12,323		$	10,981		$	9,997		$	3,394		$	2,969		$	2,809
Schedule of pension plans with accumulated benefit obligation in excess of plan assets for all U.S and Non U.S Pension benefits	'
	The following amounts relate to our pension plans with accumulated benefit obligations in excess of plan assets:
			U.S. Pension Benefits at Year-end									Non-U.S. Pension Benefits at Year-end
	(Millions of dollars)		2013			2012			2011			2013			2012			2011
	Projected benefit obligation		$	14,352		$	15,913		$	14,782		$	1,436		$	4,107		$	4,112
	Accumulated benefit obligation		$	13,989		$	15,132		$	14,055		$	1,374		$	3,752		$	3,600
	Fair value of plan assets		$	12,323		$	10,981		$	9,997		$	797		$	2,806		$	2,661
Information about the expected cash flow for the pension and other postretirement benefit plans	'
	Information about the expected cash flow for the pension and other postretirement benefit plans is as follows:
	(Millions of dollars)		U.S.			Non-U.S.			Other
			Pension Benefits			Pension Benefits			Postretirement
									Benefits
	Employer contributions:
	2014 (expected)		$	240		$	270		$	210
	Expected benefit payments:
	2014		$	890		$	250		$	340
	2015		900			210			350
	2016		910			220			350
	2017		930			220			360
	2018		940			220			360
	2019-2023		4,810			1,200			1,850
	Total		$	9,380		$	2,320		$	3,610
Expected Medicare Part D subsidy receipts	'
	Medicare Part D subsidy amounts expected to be received by the company which will offset other postretirement benefit payments are as follows:
	(Millions of dollars)		2014			2015			2016			2017			2018			2019-2023			Total
	Other postretirement benefits		$	20		$	20		$	20		$	20		$	20		$	115		$	215
Components of net periodic benefit cost, other changes in plan assets and benefits obligations recognized in other comprehensive income and weighted-average assumptions used to determine net cost	'
			U.S. Pension Benefits									Non-U.S. Pension Benefits									Other Postretirement Benefits
	(Millions of dollars)		2013			2012			2011			2013			2012			2011			2013			2012			2011
	Components of net periodic benefit cost:
	Service cost		$	196		$	185		$	158		$	120		$	108		$	115		$	108		$	92		$	84
	Interest cost		581			609			651			166			182			182			195			221			253
	Expected return on plan assets 1		(832		)	(812		)	(798		)	(225		)	(215		)	(210		)	(56		)	(63		)	(70		)
	Other adjustments 2		31			—			—			—			—			—			(22		)	—			—
	Curtailments, settlements and termination benefits 3		—			7			—			2			38			19			—			(40		)	—
	Amortization of:
	Transition obligation (asset)		—			—			—			—			—			—			2			2			2
	Prior service cost (credit) 4		18			19			20			1			1			3			(73		)	(68		)	(55		)
	Net actuarial loss (gain) 5		546			504			451			128			97			74			107			100			108
	Total cost included in operating profit		$	540		$	512		$	482		$	192		$	211		$	183		$	261		$	244		$	322
	Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax):
	Current year actuarial loss (gain)		$	(2,344	)	$	745		$	2,700		$	(406	)	$	225		$	526		$	(759	)	$	133		$	408
	Amortization of actuarial (loss) gain		(546		)	(504		)	(451		)	(128		)	(97		)	(72		)	(107		)	(100		)	(108		)
	Current year prior service cost (credit)		—			(7		)	—			(7		)	10			(25		)	2			(38		)	(121		)
	Amortization of prior service (cost) credit		(18		)	(19		)	(20		)	(1		)	(1		)	(3		)	73			68			55
	Amortization of transition (obligation) asset		—			—			—			—			—			—			(2		)	(2		)	(2		)
	Total recognized in other comprehensive income		(2,908		)	215			2,229			(542		)	137			426			(793		)	61			232
	Total recognized in net periodic cost and other comprehensive income		$	(2,368	)	$	727		$	2,711		$	(350	)	$	348		$	609		$	(532	)	$	305		$	554
	Weighted-average assumptions used to determine net cost:
	Discount rate		3.7		%	4.3		%	5.1		%	3.7		%	4.3		%	4.6		%	3.7		%	4.3		%	5		%
	Expected rate of return on plan assets 6		7.8		%	8		%	8.5		%	6.8		%	7.1		%	7.1		%	7.8		%	8		%	8.5		%
	Rate of compensation increase		4.5		%	4.5		%	4.5		%	3.9		%	3.9		%	4.1		%	4.4		%	4.4		%	4.4		%
	1	Expected return on plan assets developed using calculated market-related value of plan assets which recognizes differences in expected and actual returns over a three-year period.
	2	Charge to recognize a previously unrecorded liability related to a subsidiary's pension plans and an adjustment to other postretirement benefits related to certain other benefits.
	3	Curtailments, settlements and termination benefits were recognized in Other operating (income) expenses in Statement 1.
	4	Prior service cost (credit) for both pension and other postretirement benefits are generally amortized using the straight-line method over the average remaining service period of active employees expected to receive benefits from the plan. For pension plans in which all or almost all of the plan's participants are inactive and other postretirement benefit plans in which all or almost all of the plan's participants are fully eligible for benefits under the plan, prior service cost (credit) are amortized using the straight-line method over the remaining life expectancy of those participants.
	5	Net actuarial loss (gain) for pension and other postretirement benefit plans are generally amortized using the straight-line method over the average remaining service period of active employees expected to receive benefits from the plan. For plans in which all or almost all of the plan’s participants are inactive, net actuarial loss (gain) are amortized using the straight-line method over the remaining life expectancy of the inactive participants.
	6	The weighted-average rates for 2014 are 7.8 percent and 6.9 percent for U.S. and non-U.S. pension plans, respectively.
Company costs related to U.S. and non-U.S. defined contribution plans	'
	Total company costs related to U.S. and non-U.S. defined contribution plans were as follows:
	(Millions of dollars)		2013			2012			2011
	U.S. plans		$	308		$	260		$	219
	Non-U.S. plans		64			60			54
			$	372		$	320		$	273
Summary of long-term liability for postemployment benefit plans	'
			December 31,
	(Millions of dollars)		2013			2012			2011
	Pensions:
	U.S. pensions		$	2,003		$	4,909		$	4,764
	Non-U.S. pensions		754			1,314			1,458
	Total pensions		2,757			6,223			6,222
	Postretirement benefits other than pensions		3,793			4,495			4,396
	Other postemployment benefits		99			81			73
	Defined contribution		324			286			265
			$	6,973		$	11,085		$	10,956

Shortterm_borrowings_Tables

Short-term borrowings (Tables)	12 Months Ended
	Dec. 31, 2013
Short-term Borrowings Disclosure [Abstract]	'
Short-term borrowings	'
		December 31,
	(Millions of dollars)	2013			2012				2011
	Machinery and Power Systems:
	Notes payable to banks	$	16		$	484			$	93
	Notes payable to certain former shareholders of Siwei	—			152				—
	Commercial paper	—			—				—
		16			636				93
	Financial Products:
	Notes payable to banks	545			418				527
	Commercial paper	2,502			3,654				2,818
	Demand notes	616			579				550
		3,663			4,651				3,895
	Total short-term borrowings	$	3,679		$	5,287			$	3,988
Weighted-average interest rates on short-term borrowings	'
	The weighted-average interest rates on short-term borrowings outstanding were:
		December 31,
		2013		2012			2011
	Notes payable to banks	6.3	%	5.8	%		7.2	%
	Commercial paper	0.5	%	0.6	%		1	%
	Demand notes	0.8	%	0.8	%		0.9	%

Longterm_debt_Tables

Long-term debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Long-term debt	'
			December 31,
	(Millions of dollars)		2013		2012		2011
	Machinery and Power Systems:
	Notes—Floating Rate (Three-month USD LIBOR plus 0.17%) due 2013		$	—	$	—	$	750
	Notes—1.375% due 2014		—		750		750
	Notes—5.700% due 2016		506		508		510
	Notes—3.900% due 2021		1,246		1,245		1,245
	Notes—5.200% due 2041		757		757		1,247
	Debentures—7.000% due 2013		—		—		350
	Debentures—0.950% due 2015		500		500		—
	Debentures—1.500% due 2017		500		499		—
	Debentures—7.900% due 2018		899		899		899
	Debentures—9.375% due 2021		120		120		120
	Debentures—2.600% due 2022		498		498		—
	Debentures—8.000% due 2023		82		82		82
	Debentures—6.625% due 2028		193		193		299
	Debentures—7.300% due 2031		241		241		349
	Debentures—5.300% due 2035 1		209		208		206
	Debentures—6.050% due 2036		459		459		748
	Debentures—8.250% due 2038		65		65		248
	Debentures—6.950% due 2042		160		160		250
	Debentures—3.803% due 2042 2		1,168		1,149		—
	Debentures—7.375% due 2097		244		244		297
	Capital lease obligations		97		73		46
	Other		55		16		19
	Total Machinery and Power Systems		7,999		8,666		8,415
	Financial Products:
	Medium-term notes		17,856		18,036		15,701
	Other		864		1,050		828
	Total Financial Products		18,720		19,086		16,529
	Total long-term debt due after one year		$	26,719	$	27,752	$	24,944
	1	Debentures due in 2035 have a face value of $307 million and an effective yield to maturity of 8.69%.
	2	Debentures due in 2042 have a face value of $1,722 million and an effective yield to maturity of 6.33%.
Aggregate amounts of maturities of long-term debt	'
	The aggregate amounts of maturities of long-term debt during each of the years 2014 through 2018, including amounts due within one year and classified as current, are:
			December 31,
	(Millions of dollars)		2014		2015		2016		2017		2018
	Machinery and Power Systems		$	760	$	514	$	538	$	507	$	906
	Financial Products		6,592		6,446		4,796		2,747		2,350
			$	7,352	$	6,960	$	5,334	$	3,254	$	3,256

Credit_commitments_Tables

Credit commitments (Tables)	12 Months Ended
	Dec. 31, 2013
Credit Commitments [Abstract]	'
Credit commitments	'
		December 31, 2013
	(Millions of dollars)	Consolidated			Machinery			Financial
					and Power			Products
					Systems
	Credit lines available:
	Global credit facilities	$	10,000		$	2,750		$	7,250
	Other external	4,508			229			4,279
	Total credit lines available	14,508			2,979			11,529
	Less: Commercial paper outstanding	(2,502		)	—			(2,502		)
	Less: Utilized credit	(2,044		)	(16		)	(2,028		)
	Available credit	$	9,962		$	2,963		$	6,999

Profit_per_share_Tables

Profit per share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Computations of Profit Per Share	'
	Computations of profit per share:
	(Dollars in millions except per share data)		2013		2012		2011
	Profit for the period (A) 1		$	3,789	$	5,681	$	4,928
	Determination of shares (in millions):
	Weighted average number of common shares outstanding (B)		645.2		652.6		645
	Shares issuable on exercise of stock awards, net of shares assumed to be purchased out of proceeds at average market price		13.4		17		21.1
	Average common shares outstanding for fully diluted computation (C) 2		658.6		669.6		666.1
	Profit per share of common stock:
	Assuming no dilution (A/B)		$	5.87	$	8.71	$	7.64
	Assuming full dilution (A/C) 2		$	5.75	$	8.48	$	7.4
	Shares outstanding as of December 31 (in millions)		637.8		655		647.5
	1	Profit attributable to common stockholders.
	2	Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.

Accumulated_other_comprehensiv1

Accumulated other comprehensive income (loss) (Tables)	12 Months Ended
	Dec. 31, 2013
Accumulated other comprehensive income (loss) [Abstract]	'
Schedule of Accumulated other comprehensive income (loss)	'
	Changes in Accumulated other comprehensive income (loss), net of tax, included in Statement 4, consisted of the following:
	(Millions of dollars)		Foreign currency translation				Pension and other postretirement benefits			Derivative financial instruments			Available-for-sale securities			Total
	Balance at December 31, 2011		$	206			$	(6,568	)	$	(10	)	$	44		$	(6,328	)
	Balance at December 31, 2012 1		$	456			$	(6,914	)	$	(42	)	$	67		$	(6,433	)
	Other comprehensive income (loss) before reclassifications		(280		)		2,280			(4		)	29			2,025
	Amounts reclassified from accumulated other comprehensive (income) loss		—				482			41			(13		)	510
	Other comprehensive income (loss)		(280		)		2,762			37			16			2,535
	Balance at December 31, 2013		$	176			$	(4,152	)	$	(5	)	$	83		$	(3,898	)
	1	In conjunction with the Cat Japan share redemption, to reflect the increase in our ownership interest in Cat Japan from 67 percent to 100 percent, $107 million was reclassified to Accumulated other comprehensive income (loss) from other components of stockholders' equity and was not included in Comprehensive income during the second quarter of 2012. The amount was comprised of foreign currency translation of $167 million, pension and other postretirement benefits of $(61) million and available-for-sale securities of $1 million.
Reclassification out of Accumulated other comprehensive income (loss)	'
	The effect of the reclassifications out of Accumulated other comprehensive income (loss) on Statement 1 is as follows:
	(Millions of dollars)		Classification of income (expense)		Year ended December 31, 2013
	Pension and other postretirement benefits:
	Amortization of actuarial gain (loss)		Note 12 1		$	(781	)
	Amortization of prior service credit (cost)		Note 12 1		54
	Amortization of transition asset (obligation)		Note 12 1		(2		)
	Reclassifications before tax				(729		)
	Tax (provision) benefit				247
	Reclassifications net of tax				$	(482	)
	Derivative financial instruments:
	Foreign exchange contracts		Other income (expense)		$	(57	)
	Interest rate contracts		Other income (expense)		(3		)
	Interest rate contracts		Interest expense of Financial Products		(6		)
	Reclassifications before tax				(66		)
	Tax (provision) benefit				25
	Reclassifications net of tax				$	(41	)
	Available-for-sale securities:
	Realized gain (loss) on sale of securities		Other income (expense)		$	19
	Tax (provision) benefit				(6		)
	Reclassifications net of tax				$	13
	Total reclassifications from Accumulated other comprehensive income (loss)				$	(510	)
	1    Amounts are included in the calculation of net periodic benefit cost. See Note 12 for additional information.

Fair_value_disclosures_Tables

Fair value disclosures (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Assets and liabilities measured on a recurring basis at fair value	'
	Assets and liabilities measured on a recurring basis at fair value, primarily related to Financial Products, included in Statement 3 as of December 31, 2013, 2012 and 2011 are summarized below:
			December 31, 2013
	(Millions of dollars)		Level 1			Level 2		Level 3		Total
										Assets / Liabilities,
										at Fair Value
	Assets
	Available-for-sale securities
	Government debt
	U.S. treasury bonds		$	10		$	—	$	—	$	10
	Other U.S. and non-U.S. government bonds		—			120		—		120
	Corporate bonds
	Corporate bonds		—			633		—		633
	Asset-backed securities		—			72		—		72
	Mortgage-backed debt securities
	U.S. governmental agency		—			321		—		321
	Residential		—			18		—		18
	Commercial		—			93		—		93
	Equity securities
	Large capitalization value		254			—		—		254
	Smaller company growth		49			—		—		49
	Total available-for-sale securities		313			1,257		—		1,570
	Derivative financial instruments, net		—			161		—		161
	Total Assets		$	313		$	1,418	$	—	$	1,731
	Liabilities
	Guarantees		$	—		$	—	$	13	$	13
	Total Liabilities		$	—		$	—	$	13	$	13
			December 31, 2012
	(Millions of dollars)		Level 1			Level 2		Level 3		Total
										Assets / Liabilities,
										at Fair Value
	Assets
	Available-for-sale securities
	Government debt
	U.S. treasury bonds		$	10		$	—	$	—	$	10
	Other U.S. and non-U.S. government bonds		—			146		—		146
	Corporate bonds
	Corporate bonds		—			664		—		664
	Asset-backed securities		—			96		—		96
	Mortgage-backed debt securities
	U.S. governmental agency		—			299		—		299
	Residential		—			25		—		25
	Commercial		—			127		—		127
	Equity securities
	Large capitalization value		185			—		—		185
	Smaller company growth		34			—		—		34
	Total available-for-sale securities		229			1,357		—		1,586
	Derivative financial instruments, net		—			154		—		154
	Total Assets		$	229		$	1,511	$	—	$	1,740
	Liabilities
	Guarantees		$	—		$	—	$	14	$	14
	Total Liabilities		$	—		$	—	$	14	$	14
			December 31, 2011
	(Millions of dollars)		Level 1			Level 2		Level 3		Total
										Assets / Liabilities,
										at Fair Value
	Assets
	Available-for-sale securities
	Government debt
	U.S. treasury bonds		$	10		$	—	$	—	$	10
	Other U.S. and non-U.S. government bonds		—			92		—		92
	Corporate bonds
	Corporate bonds		—			572		—		572
	Asset-backed securities		—			111		—		111
Mortgage-backed debt securities
U.S. governmental agency		—			310		—		310
Residential		—			30		—		30
Commercial		—			145		—		145
Equity securities
Large capitalization value		148			—		—		148
Smaller company growth		29			—		—		29
Total available-for-sale securities		187			1,260		—		1,447
Derivative financial instruments, net		—			145		—		145
Total Assets		$	187		$	1,405	$	—	$	1,592
Liabilities
Guarantees		$	—		$	—	$	7	$	7
Total Liabilities		$	—		$	—	$	7	$	7
Roll-forwards of liabilities measured at fair value using Level 3 inputs	'
	Below are roll-forwards of liabilities measured at fair value using Level 3 inputs for the years ended December 31, 2013, 2012 and 2011.  These instruments were valued using pricing models that, in management’s judgment, reflect the assumptions of a market participant.
	(Millions of dollars)		Guarantees
	Balance at December 31, 2010		$	10
	Issuance of guarantees		4
	Expiration of guarantees		(7		)
	Balance at December 31, 2011		$	7
	Acquisitions		6
	Issuance of guarantees		7
	Expiration of guarantees		(6		)
	Balance at December 31, 2012		$	14
	Issuance of guarantees		6
	Expiration of guarantees		(7		)
	Balance at December 31, 2013		$	13
Fair values of financial instruments	'
	Please refer to the table below for the fair values of our financial instruments.
	TABLE III—Fair Values of Financial Instruments
			2013					2012				2011
	(Millions of dollars)		Carrying			Fair		Carrying		Fair		Carrying		Fair		Fair Value Levels	Reference
			Amount			Value		Amount		Value		Amount		Value
	Assets at December 31,
	Cash and short-term investments		$	6,081		$	6,081	$	5,490	$	5,490	$	3,057	$	3,057	1	Statement 3
	Restricted cash and short-term investments		53			53		53		53		87		87		1	Statement 3
	Available-for-sale securities		1,570			1,570		1,586		1,586		1,447		1,447		1 & 2	Notes 11 & 19
	Finance receivables–net (excluding finance leases 1)		16,049			15,913		15,404		15,359		12,689		12,516		2	Note 6 & 19
	Wholesale inventory receivables–net (excluding finance leases 1)		1,529			1,467		1,674		1,609		1,591		1,505		2	Note 6 & 19
	Foreign currency contracts–net		45			45		—		—		—		—		2	Notes 3 & 19
	Interest rate swaps–net		116			116		219		219		241		241		2	Notes 3 & 19
	Commodity contracts–net		—			—		1		1		—		—		2	Notes 3 & 19
	Liabilities at December 31,
	Short-term borrowings		3,679			3,679		5,287		5,287		3,988		3,988		1	Note 13
	Long-term debt (including amounts due within one year):
	Machinery and Power Systems		8,759			9,905		9,779		11,969		8,973		10,737		2	Note 14
	Financial Products		25,312			25,849		25,077		26,063		21,631		22,674		2	Note 14
	Foreign currency contracts–net		—			—		66		66		89		89		2	Notes 3 & 19
	Commodity contracts–net		—			—		—		—		7		7		2	Notes 3 & 19
	Guarantees		13			13		14		14		7		7		3	Note 21
	1	Total excluded items have a net carrying value at December 31, 2013, 2012 and 2011 of $8,053 million, $7,959 million and $7,324 million, respectively.

Operating_leases_Tables

Operating leases (Tables)	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Minimum payments for operating leases having initial or remaining non-cancelable terms in excess of one year	'
	Minimum payments for operating leases having initial or remaining non-cancelable terms in excess of one year are:
	Years ended December 31,
	(Millions of dollars)
	2014		2015		2016		2017		2018		Thereafter		Total
	$	244	$	180	$	133	$	99	$	74	$	229	$	959

Guarantees_and_product_warrant1

Guarantees and product warranty (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Guarantees	'
	The maximum potential amount of future payments (undiscounted and without reduction for any amounts that may possibly be recovered under recourse or collateralized provisions) we could be required to make under the guarantees at December 31 are as follows:
	(Millions of dollars)	2013			2012			2011
	Caterpillar dealer guarantees	$	193		$	180		$	140
	Customer guarantees	62			77			96
	Customer guarantees - supplier consortium	364			—			—
	Third party logistics business guarantees	151			176			—
	Limited indemnity	—			—			11
	Other guarantees	35			53			28
	Total guarantees	$	805		$	486		$	275
Product warranty	'
	(Millions of dollars)	2013			2012			2011
	Warranty liability, January 1	$	1,477		$	1,308		$	1,035
	Reduction in liability (payments)	(938		)	(920		)	(926		)
	Increase in liability (new warranties)	828			1,089			1,199
	Warranty liability, December 31	$	1,367		$	1,477		$	1,308

Segment_information_Tables

Segment information (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Reportable Segments	'
	Segment Information
	(Millions of dollars)
	Reportable Segments
			External			Inter-				Total sales				Depreciation			Segment		Segment		Capital
			sales and			segment				and				and			profit		assets at		expenditures
			revenues			sales and				revenues				amortization					December 31
						revenues
	2013
	Construction Industries		$	18,445		$	336			$	18,781			$	576		$	1,363	$	8,429	$	645
	Resource Industries		13,270			871				14,141				758			1,575		11,201		539
	Power Systems		20,155			1,895				22,050				642			3,400		8,492		677
	Machinery and Power Systems		$	51,870		$	3,102			$	54,972			$	1,976		$	6,338	$	28,122	$	1,861
	Financial Products Segment		3,224			—				3,224				789			990		36,980		1,806
	Total		$	55,094		$	3,102			$	58,196			$	2,765		$	7,328	$	65,102	$	3,667
	2012
	Construction Industries		$	19,334		$	470			$	19,804			$	565		$	1,789	$	10,393	$	1,045
	Resource Industries		21,158			1,117				22,275				694			4,318		13,455		1,143
	Power Systems		21,122			2,407				23,529				604			3,434		9,323		960
	Machinery and Power Systems		$	61,614		$	3,994			$	65,608			$	1,863		$	9,541	$	33,171	$	3,148
	Financial Products Segment		3,090			—				3,090				708			763		36,563		1,660
	Total		$	64,704		$	3,994			$	68,698			$	2,571		$	10,304	$	69,734	$	4,808
	2011
	Construction Industries		$	19,667		$	575			$	20,242			$	526		$	2,056	$	7,942	$	915
	Resource Industries		15,629			1,162				16,791				463			3,334		12,292		717
	Power Systems		20,114			2,339				22,453				544			3,053		8,748		834
	Machinery and Power Systems		$	55,410		$	4,076			$	59,486			$	1,533		$	8,443	$	28,982	$	2,466
	Financial Products Segment		3,003			—				3,003				710			587		31,747		1,191
	Total		$	58,413		$	4,076			$	62,489			$	2,243		$	9,030	$	60,729	$	3,657
Reconciliation of Sales and revenues	'
	Reconciliation of Sales and Revenues:
	(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
			and Power			Products				Adjustments				Total
			Systems
	2013
	Total external sales and revenues from reportable segments		$	51,870		$	3,224			$	—			$	55,094
	All Other operating segment		886			—				—				886
	Other		(62		)	78				(340		)	1	(324		)
	Total sales and revenues		$	52,694		$	3,302			$	(340	)		$	55,656
	2012
	Total external sales and revenues from reportable segments		$	61,614		$	3,090			$	—			$	64,704
	All Other operating segment		1,501			—				—				1,501
	Other		(47		)	70				(353		)	1	(330		)
	Total sales and revenues		$	63,068		$	3,160			$	(353	)		$	65,875
	2011
	Total external sales and revenues from reportable segments		$	55,410		$	3,003			$	—			$	58,413
	All Other operating segment		2,021			—				—				2,021
	Other		(39		)	54				(311		)	1	(296		)
	Total sales and revenues		$	57,392		$	3,057			$	(311	)		$	60,138
	1	Elimination of Financial Products revenues from Machinery and Power Systems.
Reconciliation of Consolidated profit before taxes	'
	Reconciliation of consolidated profit before taxes:
	(Millions of dollars)		Machinery			Financial				Consolidated
			and Power			Products				Total
			Systems
	2013
	Total profit from reportable segments		$	6,338		$	990			$	7,328
	All Other operating segment		663			—				663
	Cost centers		119			—				119
	Corporate costs		(1,442		)	—				(1,442		)
	Timing		89			—				89
	Methodology differences:
	Inventory/cost of sales		(112		)	—				(112		)
	Postretirement benefit expense		(685		)	—				(685		)
	Financing costs		(469		)	—				(469		)
	Equity in (profit) loss of unconsolidated affiliated companies		6			—				6
	Currency		(110		)	—				(110		)
	Interest rate swap		(1		)	—				(1		)
	Other income/expense methodology differences		(238		)	—				(238		)
	Other methodology differences		(50		)	30				(20		)
	Total consolidated profit before taxes		$	4,108		$	1,020			$	5,128
	2012
	Total profit from reportable segments		$	9,541		$	763			$	10,304
	All Other operating segment		1,014			—				1,014
	Cost centers		17			—				17
	Corporate costs		(1,517		)	—				(1,517		)
	Timing		(298		)	—				(298		)
	Methodology differences:
	Inventory/cost of sales		43			—				43
	Postretirement benefit expense		(696		)	—				(696		)
	Financing costs		(474		)	—				(474		)
	Equity in (profit) loss of unconsolidated affiliated companies		(14		)	—				(14		)
	Currency		108			—				108
	Interest rate swap		2			—				2
	Other income/expense methodology differences		(251		)	—				(251		)
	Other methodology differences		(19		)	17				(2		)
	Total consolidated profit before taxes		$	7,456		$	780			$	8,236
	2011
	Total profit from reportable segments		$	8,443		$	587			$	9,030
	All Other operating segment		837			—				837
	Cost centers		14			—				14
	Corporate costs		(1,174		)	—				(1,174		)
	Timing		(203		)	—				(203		)
	Methodology differences:
	Inventory/cost of sales		21			—				21
	Postretirement benefit expense		(670		)	—				(670		)
	Financing costs		(408		)	—				(408		)
	Equity in (profit) loss of unconsolidated affiliated companies		24			—				24
	Currency		(315		)	—				(315		)
	Interest rate swap		(149		)	—				(149		)
	Other income/expense methodology differences		(273		)	—				(273		)
	Other methodology differences		(42		)	33				(9		)
	Total consolidated profit before taxes		$	6,105		$	620			$	6,725
Reconciliation of Assets	'
	Reconciliation of Assets:
	(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
			and Power			Products				Adjustments				Total
			Systems
	2013
	Total assets from reportable segments		$	28,122		$	36,980			$	—			$	65,102
	All Other operating segment		1,431			—				—				1,431
	Items not included in segment assets:
	Cash and short-term investments		4,597			—				—				4,597
	Intercompany receivables		1,219			—				(1,219		)		—
	Investment in Financial Products		4,798			—				(4,798		)		—
	Deferred income taxes		2,541			—				(525		)		2,016
	Goodwill and intangible assets		3,582			—				—				3,582
	Property, plant and equipment – net and other assets		1,091			—				—				1,091
	Operating lease methodology difference		(290		)	—				—				(290		)
	Liabilities included in segment assets		10,372			—				—				10,372
	Inventory methodology differences		(2,539		)	—				—				(2,539		)
	Other		(220		)	(135		)		(111		)		(466		)
	Total assets		$	54,704		$	36,845			$	(6,653	)		$	84,896
	2012
	Total assets from reportable segments		$	33,171		$	36,563			$	—			$	69,734
	All Other operating segment		1,499			—				—				1,499
	Items not included in segment assets:
	Cash and short-term investments		3,306			—				—				3,306
	Intercompany receivables		303			—				(303		)		—
	Investment in Financial Products		4,433			—				(4,433		)		—
	Deferred income taxes		3,926			—				(516		)		3,410
	Goodwill and intangible assets		3,145			—				—				3,145
	Property, plant and equipment – net and other assets		668			—				—				668
	Operating lease methodology difference		(329		)	—				—				(329		)
	Liabilities included in segment assets		10,907			—				—				10,907
	Inventory methodology differences		(2,949		)	—				—				(2,949		)
	Other		(182		)	(107		)		(132		)		(421		)
	Total assets		$	57,898		$	36,456			$	(5,384	)		$	88,970
	2011
	Total assets from reportable segments		$	28,982		$	31,747			$	—			$	60,729
	All Other operating segment		2,035			—				—				2,035
	Items not included in segment assets:
	Cash and short-term investments		1,829			—				—				1,829
	Intercompany receivables		75			—				(75		)		—
	Investment in Financial Products		4,035			—				(4,035		)		—
	Deferred income taxes		4,109			—				(533		)		3,576
	Goodwill and intangible assets		2,816			—				—				2,816
	Property, plant and equipment – net and other assets		1,645			—				—				1,645
	Operating lease methodology difference		(511		)	—				—				(511		)
	Liabilities included in segment assets		11,860			—				—				11,860
	Inventory methodology differences		(2,786		)	—				—				(2,786		)
	Other		362			(194		)		(143		)		25
	Total assets		$	54,451		$	31,553			$	(4,786	)		$	81,218
Reconciliation of Depreciation and amortization	'
	Reconciliation of Depreciation and amortization:
	(Millions of dollars)		Machinery			Financial				Consolidated
			and Power			Products				Total
			Systems
	2013
	Total depreciation and amortization from reportable segments		$	1,976		$	789			$	2,765
	Items not included in segment depreciation and amortization:
	All Other operating segment		173			—				173
	Cost centers		140			—				140
	Other		(16		)	25				9
	Total depreciation and amortization		$	2,273		$	814			$	3,087
	2012
	Total depreciation and amortization from reportable segments		$	1,863		$	708			$	2,571
	Items not included in segment depreciation and amortization:
	All Other operating segment		168			—				168
	Cost centers		89			—				89
	Other		(38		)	23				(15		)
	Total depreciation and amortization		$	2,082		$	731			$	2,813
	2011
	Total depreciation and amortization from reportable segments		$	1,533		$	710			$	2,243
	Items not included in segment depreciation and amortization:
	All Other operating segment		172			—				172
	Cost centers		77			—				77
	Other		20			15				35
	Total depreciation and amortization		$	1,802		$	725			$	2,527
Reconciliation of Capital expenditures	'
	Reconciliation of Capital expenditures:
	(Millions of dollars)		Machinery			Financial				Consolidating				Consolidated
			and Power			Products				Adjustments				Total
			Systems
	2013
	Total capital expenditures from reportable segments		$	1,861		$	1,806			$	—			$	3,667
	Items not included in segment capital expenditures:
	All Other operating segment		340			—				—				340
	Cost centers		169			—				—				169
	Timing		363			—				—				363
	Other		(128		)	105				(70		)		(93		)
	Total capital expenditures		$	2,605		$	1,911			$	(70	)		$	4,446
	2012
	Total capital expenditures from reportable segments		$	3,148		$	1,660			$	—			$	4,808
	Items not included in segment capital expenditures:
	All Other operating segment		359			—				—				359
	Cost centers		175			—				—				175
	Timing		(71		)	—				—				(71		)
	Other		(176		)	136				(155		)		(195		)
	Total capital expenditures		$	3,435		$	1,796			$	(155	)		$	5,076
	2011
	Total capital expenditures from reportable segments		$	2,466		$	1,191			$	—			$	3,657
	Items not included in segment capital expenditures:
	All Other operating segment		343			—				—				343
	Cost centers		146			—				—				146
	Timing		(211		)	—				—				(211		)
	Other		(98		)	163				(76		)		(11		)
	Total capital expenditures		$	2,646		$	1,354			$	(76	)		$	3,924
Information about Geographic Areas	'
	Information about Geographic Areas:
														Property, plant and equipment - net
			External sales and revenues 1											December 31,
	(Millions of dollars)		2013			2012				2011				2013			2012		2011
	Inside United States		$	18,579		$	20,239			$	17,980			$	8,723		$	8,559	$	7,448
	Outside United States		37,077			45,636			2	42,158				8,352			7,902		6,947
	Total		$	55,656		$	65,875			$	60,138			$	17,075		$	16,461	$	14,395
	1	Sales of Machinery and Power Systems are based on dealer or customer location. Revenues from services provided are based on where service is rendered.
	2	The only country with greater than 10 percent of external sales and revenues for any of the periods presented, other than the United States, is Australia with $6,822 million as of December 31, 2012.

Acquisitions_Tables

Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Business Acquisition, Contribution to Sales and Profit Before Taxes	'
	Bucyrus contributed the following to sales and to profit before taxes (inclusive of deal-related and integration costs):
	(Millions of dollars)	July 8, 2011 to December 31, 2011
	Sales	$	2,524
	Profit (loss) before taxes	$	(403	)
Summary of initial and final allocation of assets acquired and liabilities assumed as of the acquisition date at estimated fair value	'
	The following table summarizes our initial and final allocation of the assets acquired and liabilities assumed as of the acquisition date at estimated fair value.
		July 8, 2011
	(Millions of dollars)	Initial			Final
	Assets
	Cash	$	203		$	204
	Receivables - trade and other	693			705
	Prepaid expenses	154			174
	Inventories	2,305			2,223
	Property, plant and equipment - net	692			694
	Intangible assets	3,901			3,901
	Goodwill	5,263			4,588
	Other assets	48			141
	Liabilities
	Short-term borrowings	24			24
	Long-term debt due within one year	16			16
	Accounts payable	444			465
	Accrued expenses	405			433
	Customer advances	668			668
	Other current liabilities	426			76
	Long-term debt due after one year	1,514			1,528
	Noncurrent deferred income tax liabilities	1,874			1,449
	Other liabilities	434			517
	Net assets acquired	$	7,454		$	7,454
Summary of fair value estimates of the acquired identifiable intangible assets, weighted average useful lives, and balance of accumulated amortization	'
	The following table is a summary of the fair value estimates of the acquired identifiable intangible assets and weighted–average useful lives. These intangible assets recorded as a result of the acquisition are being amortized on a straight-line basis over their respective weighted-average useful life.
	(Millions of dollars)
		Fair Value			Weighted-average
					useful life (in years)
	Customer relationships	$	2,337		15
	Intellectual property	1,489			12
	Other	75			4
	Total	$	3,901		14
Unaudited pro forma financial information	'
	(Dollars in millions except per share data)	Year Ended December 31, 2011
	Total Sales and revenues	$	62,281
	Profit	$	5,401
	Profit per common share	$	8.37
	Profit per common share – diluted	$	8.11

Divestitures_and_Assets_held_f1

Divestitures and Assets held for sale (Tables)	12 Months Ended
	Dec. 31, 2013
Divestitures and Assets held for sale	'
Major classes of assets held for sale	'
	The major classes of assets held for sale for a portion of the Bucyrus distribution business were as follows:
		December 31,
	(Millions of dollars)	2013		2012		2011
	Receivables – trade and other	$	—	$	—	$	25
	Inventories	14		30		109
	Current assets held for sale	$	14	$	30	$	134
	Property, plant and equipment – net	$	5	$	—	$	28
	Intangible assets	44		32		186
	Goodwill	45		52		296
	Non-current assets held for sale	$	94	$	84	$	510

Restructuring_Costs_Tables

Restructuring Costs (Tables)	12 Months Ended
	Dec. 31, 2013
Restructuring Charges [Abstract]	'
Summary of separation activity	'
	The following table summarizes the 2011, 2012 and 2013 employee separation activity:
	(Millions of dollars)	Total
	Liability balance at December 31, 2010	$	22
	Increase in liability (separation charges)	112
	Reduction in liability (payments and other adjustments)	(44		)
	Liability balance at December 31, 2011	$	90
	Increase in liability (separation charges)	94
	Reduction in liability (payments and other adjustments)	(155		)
	Liability balance at December 31, 2012	$	29
	Increase in liability (separation charges)	151
	Reduction in liability (payments and other adjustments)	(91		)
	Liability balance at December 31, 2013	$	89

Selected_quarterly_financial_r1

Selected quarterly financial results (unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Selected quarterly financial results	'
			2013 Quarter 3
	(Dollars in millions except per share data)		1st			2nd			3rd			4th
	Sales and revenues		$	13,210		$	14,621		$	13,423		$	14,402
	Less: Revenues		(726		)	(735		)	(745		)	(756		)
	Sales		12,484			13,886			12,678			13,646
	Cost of goods sold		9,639			10,773			9,774			10,541
	Gross margin		2,845			3,113			2,904			3,105
	Profit 1		$	880		$	960		$	946		$	1,003
	Profit per common share		$	1.34		$	1.48		$	1.48		$	1.57
	Profit per common share–diluted 2		$	1.31		$	1.45		$	1.45		$	1.54
			2012 Quarter 3
			1st			2nd			3rd			4th
	Sales and revenues		$	15,981		$	17,374		$	16,445		$	16,075
	Less: Revenues		(693		)	(690		)	(706		)	(718		)
	Sales		15,288			16,684			15,739			15,357
	Cost of goods sold		11,237			12,280			11,639			11,899
	Gross margin		4,051			4,404			4,100			3,458
	Profit 1, 4		$	1,586		$	1,699		$	1,699		$	697
	Profit per common share 4		$	2.44		$	2.6		$	2.6		$	1.07
	Profit per common share–diluted 2, 4		$	2.37		$	2.54		$	2.54		$	1.04
	1	Profit attributable to common stockholders.
	2	Diluted by assumed exercise of stock-based compensation awards using the treasury stock method.
	3	See Note 24 - Acquisitions and Note 26 - Divestitures and Assets held for sale for additional information.
	4	The fourth quarter 2012 includes a goodwill impairment charge related to Siwei of $580 million.

Operations_and_summary_of_sign2

Operations and summary of significant accounting policies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	countries
	places_of_business
	dealer_rental_outlets
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'	'	'
Ownership percentage of investments in companies below which the entity must exercise significant influence in order to be accounted for under the equity method	20.00%	'	'
Standard invoice terms, maximum extension period (in years)	'1 year	'1 year	'1 year
Standard invoice terms, amount of extension allowed to receivables	$706	$354	$341
Percentage of consolidated sales representing extension to standard invoice terms not more than one year	1.00%	1.00%	1.00%
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Percentage of value of inventories on the LIFO basis to total inventories	60.00%	60.00%	65.00%
Incremental value of inventory if FIFO method had been in use	2,504	2,750	2,422
Depreciation on equipment leased to others	768	688	690
Consolidated depreciation expense	$2,710	$2,421	$2,240
Summary of Significant Accounting Policies	'	'	'
Number of countries served by dealers	182	'	'
Number of dealer places of business	3,454	'	'
Number of dealer rental outlets	1,202	'	'
Maximum amortizable period of purchased intangibles (in years)	'13 years	'13 years	'13 years
Maximum	'	'	'
Summary of Significant Accounting Policies	'	'	'
Ownership percentage of investments in companies accounted for under the equity method (as a percent)	50.00%	'	'
Maximum amortizable period of purchased intangibles (in years)	'20 years	'	'
Minimum	'	'	'
Summary of Significant Accounting Policies	'	'	'
Ownership percentage of investments in companies accounted for under the equity method (as a percent)	20.00%	'	'
Inside United States	'	'	'
Summary of Significant Accounting Policies	'	'	'
Number of dealers	48	'	'
Outside the United States	'	'	'
Summary of Significant Accounting Policies	'	'	'
Number of dealers	130	'	'
Perkins	'	'	'
Summary of Significant Accounting Policies	'	'	'
Number of distributors	100	'	'
Number of countries where distributors are located	180	'	'
Caterpillar Northern Ireland Ltd (F.G. Wilson)	'	'	'
Summary of Significant Accounting Policies	'	'	'
Number of distributors	264	'	'
Number of countries where distributors are located	145	'	'
MaK	'	'	'
Summary of Significant Accounting Policies	'	'	'
Number of distributors	19	'	'
Number of countries where distributors are located	130	'	'

Operations_and_summary_of_sign3

Operations and summary of significant accounting policies (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net cash provided by (used for) operating activities	$10,191	$5,184	$6,957
Net cash provided by (used for) financing activities	-4,511	3,606	4,019
Receivables - trade and other	8,413	9,706	10,057
Customer advances	2,360	2,638	2,487
Other liabilities	3,029	3,136	3,559
Statement revision	'	'	'
Net cash provided by (used for) operating activities	'	-57	-53
Net cash provided by (used for) financing activities	'	57	53
Receivables - trade and other	'	-386	-228
Customer advances	'	-340	-204
Other liabilities	'	($46)	($24)

Stockbased_compensation_Detail

Stock-based compensation (Details) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'	'
Common shares issued from treasury stock for stock-based compensation (in shares)	6,258,692	7,515,149	8,710,630
Vesting period of 2013, 2012 and 2011 awards, after the date of grant (in years)	'3 years	'	'
Required minimum age of a participant upon separation from service to meet the criteria for Long Service Separation (in years)	'55 years	'	'
Minimum term of service to meet criteria for Long Service Separation (in years)	'5 years	'	'
Term life of SARs and option awards (in years)	'10 years	'	'
Term life of vested options/SARs from separation date (in years)	'5 years	'	'
Requisite service period (in months)	'6 months	'	'
Assumptions used in determining the fair value of the stock-based awards	'	'	'
Weighted-average dividend yield (as a percent)	2.10%	2.20%	2.20%
Weighted-average volatility (as a percent)	30.60%	35.00%	32.70%
Volatilities, low end of range (as a percent)	23.40%	33.30%	20.90%
Volatilities, high end of range (as a percent)	40.60%	40.40%	45.40%
Risk-free interest rates, low end of range (as a percent)	0.16%	0.17%	0.25%
Risk-free interest rates, high end of range (as a percent)	1.88%	2.00%	3.51%
Weighted-average expected lives (in years)	'8 years	'7 years	'8 years
Unrecognized compensation cost related to nonvested stock-based compensation awards (in dollars)	$193	'	'
Term of amortization of unrecognized compensation cost over weighted-average remaining requisite service periods (in years)	'1 year 9 months	'	'
Stock options/SARs activity	'	'	'
Outstanding at beginning of year (in shares)	45,827,599	50,372,991	57,882,998
Granted to officers and key employees (in shares)	4,276,060	3,318,188	2,960,595
Exercised (in shares)	-6,476,082	-7,708,343	-10,149,476
Forfeited / expired (in shares)	-251,830	-155,237	-321,126
Outstanding at end of year (in shares)	43,375,747	45,827,599	50,372,991
Number of stock awards exercisable at end of the period (in shares)	34,200,054	33,962,000	35,523,057
Restricted stock units activity	'	'	'
Outstanding at beginning of year (in shares)	3,580,220	4,281,490	4,650,241
Granted to officers and key employees (in shares)	1,614,870	1,429,939	1,082,032
Vested (in shares)	-1,286,934	-2,077,485	-1,382,539
Forfeited (in shares)	-84,828	-53,724	-68,244
Outstanding at end of year (in shares)	3,823,328	3,580,220	4,281,490
Weighted- Average Exercise Price for stock options and stock appreciation rights	'	'	'
Outstanding at beginning of year (in dollars per share)	$59.45	$53.01	$48.50
Granted to officers and key employees (in dollars per share)	$89.75	$110.09	$102.13
Exercised (in dollars per share)	$41.10	$38.73	$41.78
Forfeited / expired (in dollars per share)	$84.64	$67.50	$48.02
Outstanding at end of year (in dollars per share)	$65.03	$59.45	$53.01
Exercisable at year-end (in dollars per share)	$55.93	$51.75	$52.66
SARs Granted to officers and key employees (in shares)	0	0	2,722,689

Stockbased_compensation_Detail1

Stock-based compensation (Details 2) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Stock options and Stock appreciation rights outstanding	'	'	'	'
Weighted Average Exercise Price (in dollars per share)	$65.03	$59.45	$53.01	$48.50
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	34,200,054	33,962,000	35,523,057	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$55.93	$51.75	$52.66	'
Additional Stock-based Award Information under Stock Option and Stock Appreciation Rights	'	'	'	'
Weighted-average fair value per share of stock awards granted (in dollars per share)	$28.34	$39.20	$36.73	'
Intrinsic value of stock awards exercised	$312	$488	$618	'
Fair value of stock awards vested	167	66	96	'
Cash received from stock awards exercised	152	112	161	'
Additional Stock-based Award Information under Restricted Stock Units Activity	'	'	'	'
Weighted average fair value per share of stock awards granted (in dollars per share)	$84.05	$104.61	$97.51	'
Fair value of stock awards vested	117	229	143	'
Weighted average remaining contractual life (in years)	'1 year 3 months	'	'	'
Stock-based compensation expense, before tax (in dollars)	231	245	193	'
Income tax benefit corresponding to stock-based compensation expense	73	78	61	'
Cash tax benefits realized from stock awards exercised	127	217	235	'
Tax benefit recordable in APIC on reduction of future income taxes payable	39	'	'	'
Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	43,375,747	'	'	'
Weighted Average Exercise Price (in dollars per share)	$65.03	'	'	'
Aggregate Intrinsic Value outstanding	1,211	'	'	'
Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	34,200,054	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$55.93	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	1,207	'	'	'
Exercise Price Range 22.17 To 38.63 | Minimum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$22.17	'	'	'
Exercise Price Range 22.17 To 38.63 | Maximum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$38.63	'	'	'
Exercise Price Range 22.17 To 38.63 | Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	7,775,953	'	'	'
Weighted Average Remaining Contractual Life outstanding (in Years)	'3 years 2 months 13 days	'	'	'
Weighted Average Exercise Price (in dollars per share)	$29.03	'	'	'
Aggregate Intrinsic Value outstanding	481	'	'	'
Exercise Price Range 22.17 To 38.63 | Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	7,775,953	'	'	'
Weighted-Average Remaining Contractual Life of Stock awards exercisable (in years)	'3 years 2 months 13 days	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$29.03	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	481	'	'	'
Exercise Price Range 40.64 To 57.85 | Minimum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$40.64	'	'	'
Exercise Price Range 40.64 To 57.85 | Maximum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$57.85	'	'	'
Exercise Price Range 40.64 To 57.85 | Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	11,656,943	'	'	'
Weighted Average Remaining Contractual Life outstanding (in Years)	'4 years 23 days	'	'	'
Weighted Average Exercise Price (in dollars per share)	$52.71	'	'	'
Aggregate Intrinsic Value outstanding	444	'	'	'
Exercise Price Range 40.64 To 57.85 | Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	11,656,943	'	'	'
Weighted-Average Remaining Contractual Life of Stock awards exercisable (in years)	'4 years 23 days	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$52.71	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	444	'	'	'
Exercise Price Range 63.04 To 72.05 | Minimum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$63.04	'	'	'
Exercise Price Range 63.04 To 72.05 | Maximum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$72.05	'	'	'
Exercise Price Range 63.04 To 72.05 | Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	9,687,583	'	'	'
Weighted Average Remaining Contractual Life outstanding (in Years)	'2 years 5 months 23 days	'	'	'
Weighted Average Exercise Price (in dollars per share)	$69.05	'	'	'
Aggregate Intrinsic Value outstanding	211	'	'	'
Exercise Price Range 63.04 To 72.05 | Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	9,687,583	'	'	'
Weighted-Average Remaining Contractual Life of Stock awards exercisable (in years)	'2 years 5 months 23 days	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$69.05	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	211	'	'	'
Exercise Price Range 73.20 To 89.75 | Minimum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$73.20	'	'	'
Exercise Price Range 73.20 To 89.75 | Maximum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$89.75	'	'	'
Exercise Price Range 73.20 To 89.75 | Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	8,280,894	'	'	'
Weighted Average Remaining Contractual Life outstanding (in Years)	'6 years 8 months 9 days	'	'	'
Weighted Average Exercise Price (in dollars per share)	$81.70	'	'	'
Aggregate Intrinsic Value outstanding	75	'	'	'
Exercise Price Range 73.20 To 89.75 | Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	4,174,124	'	'	'
Weighted-Average Remaining Contractual Life of Stock awards exercisable (in years)	'4 years 4 months 15 days	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$73.86	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	71	'	'	'
Exercise Price Range 102.13 To 110.09 | Minimum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$102.13	'	'	'
Exercise Price Range 102.13 To 110.09 | Maximum	'	'	'	'
Stock Options/SARs outstanding and exercisable	'	'	'	'
Exercise Price (in dollars per share)	$110.09	'	'	'
Exercise Price Range 102.13 To 110.09 | Stock options and stock appreciation rights outstanding	'	'	'	'
Stock options and Stock appreciation rights outstanding	'	'	'	'
Stock option and stock appreciation rights outstanding at the end of the year (in shares)	5,974,374	'	'	'
Weighted Average Remaining Contractual Life outstanding (in Years)	'7 years 8 months 15 days	'	'	'
Weighted Average Exercise Price (in dollars per share)	$106.28	'	'	'
Aggregate Intrinsic Value outstanding	0	'	'	'
Exercise Price Range 102.13 To 110.09 | Stock options and stock appreciation rights exercisable	'	'	'	'
Stock options and Stock appreciation rights exercisable	'	'	'	'
Number of stock awards exercisable at end of the period (in shares)	905,451	'	'	'
Weighted-Average Remaining Contractual Life of Stock awards exercisable (in years)	'7 years 7 months 14 days	'	'	'
Weighted-Average Exercise Price of Stock awards exercisable (in dollars per share)	$105.59	'	'	'
Aggregate Intrinsic Value of Stock awards exercisable	$0	'	'	'

Derivative_financial_instrumen3

Derivative financial instruments and risk management (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2011
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Foreign currency cash flow hedges, maximum period (in years)	'5 years	'
Deferred net gains, foreign currency exchange rate risk, to be reclassified from equity to current earnings over the next twelve months	$9	'
Deferred net losses, interest rate risk, to be reclassified from equity to current earnings over the next twelve months	3	'
Loss on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	'	$149
Commodity forward and option contracts, maximum period (in years)	'5 years	'

Derivative_financial_instrumen4

Derivative financial instruments and risk management (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Derivatives Fair Value	'	'	'
Asset Fair Value	$211	$298	$357
Liability Fair Value	-50	-144	-212
Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	73	60	102
Liability Fair Value	-40	-129	-189
Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	138	238	255
Liability Fair Value	-10	-15	-23
Designated derivatives	'	'	'
Derivatives Fair Value	'	'	'
Asset (Liability) Fair Value	131	180	232
Designated derivatives | Foreign exchange contracts | Receivables - trade and other | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	54	28	54
Designated derivatives | Foreign exchange contracts | Long-term receivables - trade and other | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	0	0	19
Designated derivatives | Foreign exchange contracts | Accrued expenses | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	-39	-66	-73
Designated derivatives | Foreign exchange contracts | Other liabilities | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	0	0	-10
Designated derivatives | Interest rate contracts | Receivables - trade and other | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	7	17	15
Designated derivatives | Interest rate contracts | Long-term receivables - trade and other | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	115	209	233
Designated derivatives | Interest rate contracts | Accrued expenses | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	-6	-8	-6
Undesignated derivatives	'	'	'
Derivatives Fair Value	'	'	'
Asset (Liability) Fair Value	30	-26	-87
Undesignated derivatives | Foreign exchange contracts | Receivables - trade and other | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	19	31	27
Undesignated derivatives | Foreign exchange contracts | Receivables - trade and other | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	7	10	7
Undesignated derivatives | Foreign exchange contracts | Long-term receivables - trade and other | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	9	0	0
Undesignated derivatives | Foreign exchange contracts | Accrued expenses | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	-1	-63	-12
Undesignated derivatives | Foreign exchange contracts | Accrued expenses | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	-4	-6	-16
Undesignated derivatives | Foreign exchange contracts | Other liabilities | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	0	0	-85
Undesignated derivatives | Interest rate contracts | Receivables - trade and other | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	0	2	0
Undesignated derivatives | Interest rate contracts | Accrued expenses | Financial Products	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	0	-1	-1
Undesignated derivatives | Commodity contracts | Receivables - trade and other | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Asset Fair Value	0	1	2
Undesignated derivatives | Commodity contracts | Accrued expenses | Machinery and Power Systems	'	'	'
Derivatives Fair Value	'	'	'
Liability Fair Value	$0	$0	($9)

Derivative_financial_instrumen5

Derivative financial instruments and risk management (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Designated derivatives | Fair Value Hedges	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives	($107)	($20)	$38
Gains (Losses) on Borrowings	114	36	-43
Designated derivatives | Fair Value Hedges | Interest rate contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives	'	'	-1
Gains (Losses) on Borrowings	'	'	1
Designated derivatives | Fair Value Hedges | Interest rate contracts | Financial Products | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives	-107	-20	39
Gains (Losses) on Borrowings	114	36	-44
Designated derivatives | Cash Flow Hedges	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	-6	-77	-33
Amount of Gains (Losses) Reclassified from AOCI to Earnings	-66	-26	55
Recognized in Earnings (Ineffective Portion)	1	-1	-2
Designated derivatives | Cash Flow Hedges | Foreign exchange contracts | Machinery and Power Systems	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	-4	-78	-34
Designated derivatives | Cash Flow Hedges | Foreign exchange contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Reclassified from AOCI to Earnings	-57	-30	70
Recognized in Earnings (Ineffective Portion)	0	0	0
Gains (Losses) reclassified from AOCI to earnings for derivatives dedesignated as related transactions are no longer probable to occur	-3	-7	'
Designated derivatives | Cash Flow Hedges | Interest rate contracts | Machinery and Power Systems	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	0	'	0
Designated derivatives | Cash Flow Hedges | Interest rate contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Reclassified from AOCI to Earnings	-3	'	-3
Recognized in Earnings (Ineffective Portion)	0	'	0
Designated derivatives | Cash Flow Hedges | Interest rate contracts | Financial Products	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Recognized in AOCI (Effective Portion)	-2	1	1
Designated derivatives | Cash Flow Hedges | Interest rate contracts | Financial Products | Interest expense of Financial Products	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Amount of Gains (Losses) Reclassified from AOCI to Earnings	-6	4	-12
Recognized in Earnings (Ineffective Portion)	1	-1	-2
Undesignated derivatives	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	18	72	-119
Undesignated derivatives | Foreign exchange contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	17	62	62
Undesignated derivatives | Foreign exchange contracts | Financial Products | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	8	6	-15
Undesignated derivatives | Interest rate contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	-1	2	-149
Undesignated derivatives | Interest rate contracts | Financial Products | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	-3	0	0
Undesignated derivatives | Commodity contracts | Machinery and Power Systems | Other Income (Expense)	'	'	'
Derivative Instruments Gain (Loss)	'	'	'
Gains (Losses) on Derivatives Not Designated as Hedging Instruments	($3)	$2	($17)

Derivative_financial_instrumen6

Derivative financial instruments and risk management (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Offsetting Assets	'	'	'
Gross Amount of Recognized Assets	$211	$298	$357
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amount of Assets Presented in the Statement of Financial Position	211	298	357
Financial Instruments	-41	-71	-113
Cash Collateral Received	0	0	0
Net Amount of Assets	170	227	244
Machinery and Power Systems	'	'	'
Offsetting Assets	'	'	'
Gross Amount of Recognized Assets	73	60	102
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amount of Assets Presented in the Statement of Financial Position	73	60	102
Financial Instruments	-32	-59	-102
Cash Collateral Received	0	0	0
Net Amount of Assets	41	1	0
Financial Products	'	'	'
Offsetting Assets	'	'	'
Gross Amount of Recognized Assets	138	238	255
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amount of Assets Presented in the Statement of Financial Position	138	238	255
Financial Instruments	-9	-12	-11
Cash Collateral Received	0	0	0
Net Amount of Assets	$129	$226	$244

Derivative_financial_instrumen7

Derivative financial instruments and risk management (Details 5) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Offsetting Liabilities	'	'	'
Gross Amount of Recognized Liabilities	($50)	($144)	($212)
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	-50	-144	-212
Financial Instruments	41	71	113
Cash Collateral Pledged	0	0	0
Net Amount of Liabilities	-9	-73	-99
Machinery and Power Systems	'	'	'
Offsetting Liabilities	'	'	'
Gross Amount of Recognized Liabilities	-40	-129	-189
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	-40	-129	-189
Financial Instruments	32	59	102
Cash Collateral Pledged	0	0	0
Net Amount of Liabilities	-8	-70	-87
Financial Products	'	'	'
Offsetting Liabilities	'	'	'
Gross Amount of Recognized Liabilities	-10	-15	-23
Gross Amounts Offset in the Statement of Financial Position	0	0	0
Net Amounts of Liabilities Presented in the Statement of Financial Position	-10	-15	-23
Financial Instruments	9	12	11
Cash Collateral Pledged	0	0	0
Net Amount of Liabilities	($1)	($3)	($12)

Other_income_expense_Details

Other income (expense) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other Income and Expenses [Abstract]	'	'	'
Investment and interest income	$84	$82	$85
Foreign exchange gains (losses)	-254	-116	21
License fee income	114	99	80
Gains (losses) on sale of securities and affiliated companies	21	4	17
Impairment of available-for-sale securities	-1	-2	-5
Miscellaneous income (loss)	1	63	-230
Other income (expense)	-35	130	-32
Forward starting swap costs included in Miscellaneous income (loss)	'	'	149
Bridge financing costs	'	'	$54

Income_taxes_Details

Income taxes (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Components of profit (loss) before taxes	'	'	'
U.S	$1,938	$4,090	$2,250
Non-U.S	3,190	4,146	4,475
Consolidated profit before taxes	5,128	8,236	6,725
Current tax provision (benefit):	'	'	'
U.S.	407	971	750
Non-U.S.	805	1,250	1,014
State (U.S.)	33	56	72
Current tax provision (benefit)	1,245	2,277	1,836
Deferred tax provision (benefit):	'	'	'
U.S.	79	332	2
Non-U.S.	-7	-89	-92
State (U.S.)	2	8	-26
Deferred tax provision (benefit)	74	251	-116
Provision (benefit) for income taxes	1,319	2,528	1,720
Income taxes paid	$1,544	$2,396	$1,369

Income_taxes_Details_2

Income taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of the U.S. federal statutory rate to effective rate:	'	'	'
Taxes at U.S. statutory rate	$1,795,000,000	$2,882,000,000	$2,354,000,000
U. S. statutory tax rate (as a percent)	35.00%	35.00%	35.00%
(Decreases) increases in taxes resulting from:	'	'	'
Non-U.S. subsidiaries taxed at other than 35%	-268,000,000	-342,000,000	-467,000,000
Non-U.S. subsidiaries taxed at other than 35% (as a percent)	-5.20%	-4.20%	-6.90%
State and local taxes, net of federal	23,000,000	55,000,000	30,000,000
State and local taxes, net of federal (as a percent)	0.40%	0.70%	0.40%
Interest and penalties, net of tax	4,000,000	22,000,000	25,000,000
Interest and penalties, net of tax (as a percent)	0.10%	0.30%	0.40%
U.S. research and production incentives	-91,000,000	-80,000,000	-152,000,000
U.S. research and production incentives (as a percent)	-1.80%	-1.00%	-2.30%
Other-net	-2,000,000	-27,000,000	-7,000,000
Other-net (as a percent)	0.00%	-0.30%	-0.10%
Total of taxes at statutory rate plus increases and decreases	1,461,000,000	2,510,000,000	1,783,000,000
Total of tax rates at statutory rate plus increases and decreases in the rate (as a percent)	28.50%	30.50%	26.50%
Prior year tax and interest adjustments	-55,000,000	-300,000,000	41,000,000
Prior year tax and interest adjustments (as a percent)	-1.10%	-3.70%	0.60%
Nondeductible goodwill	0	318,000,000	33,000,000
Nondeductible goodwill (as a percent)	0.00%	3.90%	0.50%
Release of valuation allowances	0	0	-24,000,000
Release of valuation allowances (as a percent)	0.00%	0.00%	-0.30%
Non-U.S. earnings reinvestment changes	0	0	-113,000,000
Non-U.S. earnings reinvestment changes (as a percent)	0.00%	0.00%	-1.70%
Tax law changes	-87,000,000	0	0
Tax law changes (as a percent)	-1.70%	0.00%	0.00%
Provision (benefit) for income taxes	1,319,000,000	2,528,000,000	1,720,000,000
Provision (benefit) for income taxes (as a percent)	25.70%	30.70%	25.60%
Benefit from research and development tax credit retroactively extended	-87,000,000	0	0
Settlement benefit, previously unrecognized tax benefits	'	-188,000,000	'
Settlement benefit, interest and penalties	'	-96,000,000	'
Impairment of nondeductible goodwill	'	203,000,000	'
Divestiture of nondeductible goodwill	'	115,000,000	33,000,000
Undistributed profits of non-U.S. subsidiaries considered indefinitely reinvested	$17,000,000,000	'	'

Income_taxes_Details_3

Income taxes (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Deferred tax assets	'	'	'
Deferred and refundable income taxes	$877	$979	$1,044
Noncurrent deferred and refundable income taxes	456	1,863	2,005
Total deferred tax assets	1,333	2,842	3,049
Deferred tax liabilities	'	'	'
Other current liabilities	86	66	69
Other liabilities	447	484	559
Deferred income taxes-net	$800	$2,292	$2,421

Income_taxes_Details_4

Income taxes (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Deferred income tax assets:	'	'	'
Pension	$903	$2,100	$2,130
Postemployment benefits other than pensions	1,435	1,678	1,622
Tax carryforwards	760	663	821
Warranty reserves	313	358	338
Stock based compensation	320	281	232
Inventory	112	195	148
Allowance for credit losses	184	170	131
Post sale discounts	146	141	141
Deferred compensation	126	110	102
Other-net	524	491	537
Deferred income tax assets, Total	4,823	6,187	6,202
Deferred income tax liabilities:	'	'	'
Capital and intangible assets	-2,815	-2,759	-2,866
Bond discount	-240	-249	-37
Translation	-133	-173	-193
Undistributed profits of non-U.S. subsidiaries	-90	-128	-215
Deferred income tax liabilities, Total	-3,278	-3,309	-3,311
Valuation allowance for deferred tax assets	-745	-586	-470
Deferred income taxes-net	$800	$2,292	$2,421

Income_taxes_Details_5

Income taxes (Details 5) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Millions, unless otherwise specified

U.S. state taxing jurisdictions

U.S. state taxing jurisdictions

U.S. state taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

Non-U.S. taxing jurisdictions

2014-2033

Over the next five to fifteen years

2014

2015

2016

2017

2018-2034

Unlimited

Operating loss and Tax credit carryforwards

'

'

'

'

'

'

'

'

'

'

'

'

'

Net operating loss carryforwards

'

'

'

'

$707

'

$1,999

$9

$10

$13

$15

$760

$1,192

Tax credit carryforwards

'

'

'

'

'

169

'

'

'

'

'

'

'

Valuation allowance for deferred tax assets

($745)

($586)

($470)

($188)

'

'

($557)

'

'

'

'

'

'

State tax credit carryforward expiration date, minimum

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

State tax credit carryforwards expiration date, maximum

'

'

'

'

'

'15 years

'

'

'

'

'

'

'

Income_taxes_Details_6

Income taxes (Details 6) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of the beginning and ending amount of gross unrecognized tax benefits	'	'	'
Unrecognized tax benefits, beginning	$715	$958	$789
Additions for tax positions related to current year	63	64	118
Additions for tax positions related to prior years	52	178	108
Reductions for tax positions related to prior years	-31	-266	-30
Reductions for settlements	-15	-191	0
Reductions for expiration of statute of limitations	-25	-28	-27
Unrecognized tax benefits, ending	759	715	958
Unrecognized tax benefits that, if recognized, would impact the effective tax rate	726	669	835
Interest and penalties, recognized	7	-114	39
Interest and penalties, accrued	$59	$134	$240
Length of time tax year subject to examination, minimum	'3 years	'	'
Length of time tax years subject to examination, maximum	'8 years	'	'

Cat_Financial_Financing_Activi2

Cat Financial Financing Activities (Details) (Wholesale Receivables, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Contractual maturities of wholesale inventory receivables	'	'	'
2014	$1,019	'	'
2015	432	'	'
2016	285	'	'
2017	88	'	'
2018	35	'	'
Thereafter	3	'	'
Total Amounts Due	1,862	'	'
Guaranteed residual value	90	'	'
Unguaranteed residual value	35	'	'
Less: Unearned Income	-42	'	'
Total	1,945	2,152	1,990
Wholesale Installment Contracts	'	'	'
Contractual maturities of wholesale inventory receivables	'	'	'
2014	258	'	'
2015	106	'	'
2016	77	'	'
2017	39	'	'
2018	17	'	'
Thereafter	3	'	'
Total Amounts Due	500	'	'
Guaranteed residual value	0	'	'
Unguaranteed residual value	0	'	'
Less: Unearned Income	-8	'	'
Total	492	'	'
Wholesale Finance Leases	'	'	'
Contractual maturities of wholesale inventory receivables	'	'	'
2014	125	'	'
2015	95	'	'
2016	58	'	'
2017	31	'	'
2018	13	'	'
Thereafter	0	'	'
Total Amounts Due	322	'	'
Guaranteed residual value	90	'	'
Unguaranteed residual value	35	'	'
Less: Unearned Income	-31	'	'
Total	416	'	'
Wholesale Notes	'	'	'
Contractual maturities of wholesale inventory receivables	'	'	'
2014	636	'	'
2015	231	'	'
2016	150	'	'
2017	18	'	'
2018	5	'	'
Thereafter	0	'	'
Total Amounts Due	1,040	'	'
Guaranteed residual value	0	'	'
Unguaranteed residual value	0	'	'
Less: Unearned Income	-3	'	'
Total	$1,037	'	'

Cat_Financial_Financing_Activi3

Cat Financial Financing Activities (Details 2) (Finance Receivables, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Contractual maturities of outstanding finance receivables	'	'	'
2014	$8,966	'	'
2015	6,073	'	'
2016	4,143	'	'
2017	2,646	'	'
2018	1,070	'	'
Thereafter	1,235	'	'
Total amounts due	24,133	'	'
Guaranteed Residual value	354	'	'
Unguaranteed Residual value	486	'	'
Less: Unearned Income	-912	'	'
Total Finance Receivables	24,061	23,308	19,980
Retail Installment Contracts	'	'	'
Contractual maturities of outstanding finance receivables	'	'	'
2014	2,105	'	'
2015	1,627	'	'
2016	1,093	'	'
2017	590	'	'
2018	198	'	'
Thereafter	26	'	'
Total amounts due	5,639	'	'
Guaranteed Residual value	0	'	'
Unguaranteed Residual value	0	'	'
Less: Unearned Income	-93	'	'
Total Finance Receivables	5,546	'	'
Retail finance leases	'	'	'
Contractual maturities of outstanding finance receivables	'	'	'
2014	3,234	'	'
2015	2,183	'	'
2016	1,292	'	'
2017	581	'	'
2018	203	'	'
Thereafter	139	'	'
Total amounts due	7,632	'	'
Guaranteed Residual value	354	'	'
Unguaranteed Residual value	486	'	'
Less: Unearned Income	-730	'	'
Total Finance Receivables	7,742	'	'
Retail Notes	'	'	'
Contractual maturities of outstanding finance receivables	'	'	'
2014	3,627	'	'
2015	2,263	'	'
2016	1,758	'	'
2017	1,475	'	'
2018	669	'	'
Thereafter	1,070	'	'
Total amounts due	10,862	'	'
Guaranteed Residual value	0	'	'
Unguaranteed Residual value	0	'	'
Less: Unearned Income	-89	'	'
Total Finance Receivables	$10,773	'	'

Cat_Financial_Financing_Activi4

Cat Financial Financing Activities (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Impaired loans and finance leases	'	'	'
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Finance Receivables	'	'	'
Impaired loans and finance leases	'	'	'
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Finance Receivables | Customer	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	$446	$378	$326
Unpaid Principal Balance With No Allowance Recorded	443	377	317
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	182	215	158
Unpaid Principal Balance With An Allowance Recorded	177	207	154
Related Allowance	70	54	34
Recorded Investment, Total	628	593	484
Unpaid Principal Balance, Total	620	584	471
Related Allowance, Total	70	54	34
Average Recorded Investment With No Allowance Recorded	421	332	345
Interest Income Recognized With No Allowance Recorded	12	6	12
Average Recorded Investment With An Allowance Recorded	238	188	159
Interest Income Recognized With An Allowance Recorded	6	5	3
Average Recorded Investment, Total	659	520	504
Interest Income Recognized, Total	18	11	15
Finance Receivables | Customer | North America	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	23	28	83
Unpaid Principal Balance With No Allowance Recorded	22	27	80
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	13	25	23
Unpaid Principal Balance With An Allowance Recorded	13	23	20
Related Allowance	4	7	6
Recorded Investment, Total	36	53	106
Unpaid Principal Balance, Total	35	50	100
Related Allowance, Total	4	7	6
Average Recorded Investment With No Allowance Recorded	25	50	91
Interest Income Recognized With No Allowance Recorded	3	3	4
Average Recorded Investment With An Allowance Recorded	18	25	56
Interest Income Recognized With An Allowance Recorded	1	1	2
Average Recorded Investment, Total	43	75	147
Interest Income Recognized, Total	4	4	6
Finance Receivables | Customer | Europe	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	48	45	47
Unpaid Principal Balance With No Allowance Recorded	47	45	46
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	20	28	22
Unpaid Principal Balance With An Allowance Recorded	19	26	21
Related Allowance	7	11	8
Recorded Investment, Total	68	73	69
Unpaid Principal Balance, Total	66	71	67
Related Allowance, Total	7	11	8
Average Recorded Investment With No Allowance Recorded	49	45	11
Interest Income Recognized With No Allowance Recorded	1	1	0
Average Recorded Investment With An Allowance Recorded	22	27	20
Interest Income Recognized With An Allowance Recorded	1	1	0
Average Recorded Investment, Total	71	72	31
Interest Income Recognized, Total	2	2	0
Finance Receivables | Customer | Asia Pacific	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	7	2	4
Unpaid Principal Balance With No Allowance Recorded	7	2	4
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	16	19	9
Unpaid Principal Balance With An Allowance Recorded	16	19	9
Related Allowance	2	4	3
Recorded Investment, Total	23	21	13
Unpaid Principal Balance, Total	23	21	13
Related Allowance, Total	2	4	3
Average Recorded Investment With No Allowance Recorded	4	3	5
Interest Income Recognized With No Allowance Recorded	0	0	0
Average Recorded Investment With An Allowance Recorded	18	15	11
Interest Income Recognized With An Allowance Recorded	1	1	1
Average Recorded Investment, Total	22	18	16
Interest Income Recognized, Total	1	1	1
Finance Receivables | Customer | Mining	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	134	1	8
Unpaid Principal Balance With No Allowance Recorded	134	1	8
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	0	0	0
Unpaid Principal Balance With An Allowance Recorded	0	0	0
Related Allowance	0	0	0
Recorded Investment, Total	134	1	8
Unpaid Principal Balance, Total	134	1	8
Related Allowance, Total	0	0	0
Average Recorded Investment With No Allowance Recorded	61	8	8
Interest Income Recognized With No Allowance Recorded	3	0	1
Average Recorded Investment With An Allowance Recorded	1	0	0
Interest Income Recognized With An Allowance Recorded	0	0	0
Average Recorded Investment, Total	62	8	8
Interest Income Recognized, Total	3	0	1
Finance Receivables | Customer | Latin America	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	11	7	9
Unpaid Principal Balance With No Allowance Recorded	11	7	9
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	23	30	19
Unpaid Principal Balance With An Allowance Recorded	23	30	19
Related Allowance	6	8	4
Recorded Investment, Total	34	37	28
Unpaid Principal Balance, Total	34	37	28
Related Allowance, Total	6	8	4
Average Recorded Investment With No Allowance Recorded	11	6	9
Interest Income Recognized With No Allowance Recorded	0	0	1
Average Recorded Investment With An Allowance Recorded	44	27	11
Interest Income Recognized With An Allowance Recorded	2	2	0
Average Recorded Investment, Total	55	33	20
Interest Income Recognized, Total	2	2	1
Finance Receivables | Customer | Caterpillar Power Finance	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment With No Allowance Recorded	223	295	175
Unpaid Principal Balance With No Allowance Recorded	222	295	170
Related Allowance With No Allowance Recorded	0	0	0
Recorded Investment With An Allowance Recorded	110	113	85
Unpaid Principal Balance With An Allowance Recorded	106	109	85
Related Allowance	51	24	13
Recorded Investment, Total	333	408	260
Unpaid Principal Balance, Total	328	404	255
Related Allowance, Total	51	24	13
Average Recorded Investment With No Allowance Recorded	271	220	221
Interest Income Recognized With No Allowance Recorded	5	2	6
Average Recorded Investment With An Allowance Recorded	135	94	61
Interest Income Recognized With An Allowance Recorded	1	0	0
Average Recorded Investment, Total	406	314	282
Interest Income Recognized, Total	6	2	6
Finance Receivables | Dealer	'	'	'
Impaired loans and finance leases	'	'	'
Recorded Investment, Total	0	0	0
Average Recorded Investment, Total	$0	$0	$0

Cat_Financial_Financing_Activi5

Cat Financial Financing Activities (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Non-accrual and past due loans and finance leases	'	'	'
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Finance Receivables	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Period after which unpaid installments are considered as past due (in days)	'30 days	'	'
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	$229	$188	$194
61-90 days past due	105	70	104
91 or more days past due	349	418	442
Total Past Due	683	676	740
Current	23,378	22,632	19,240
Total Finance Receivables	24,061	23,308	19,980
91+ Still Accruing	22	28	58
Finance Receivables | North America	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	8,864	8,030	7,291
Finance Receivables | Europe	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	3,025	2,740	2,281
Finance Receivables | Asia Pacific	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	3,471	3,789	3,038
Finance Receivables | Mining	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	2,144	1,974	1,485
Finance Receivables | Latin America	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	3,466	3,603	2,965
Finance Receivables | Caterpillar Power Finance	'	'	'
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	3,091	3,172	2,920
Finance Receivables | Customer	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	425	513	472
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	20,296	19,424	17,593
Finance Receivables | Customer | North America	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	26	59	112
Aging related to loans and finance leases	'	'	'
31-60 days past due	37	35	74
61-90 days past due	12	8	39
91 or more days past due	24	52	111
Total Past Due	73	95	224
Current	6,508	5,872	5,378
Total Finance Receivables	6,581	5,967	5,602
91+ Still Accruing	0	0	9
Finance Receivables | Customer | Europe	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	28	38	58
Aging related to loans and finance leases	'	'	'
31-60 days past due	26	23	27
61-90 days past due	15	9	11
91 or more days past due	29	36	57
Total Past Due	70	68	95
Current	2,805	2,487	2,129
Total Finance Receivables	2,875	2,555	2,224
91+ Still Accruing	6	6	10
Finance Receivables | Customer | Asia Pacific	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	50	36	24
Aging related to loans and finance leases	'	'	'
31-60 days past due	54	53	47
61-90 days past due	23	19	23
91 or more days past due	59	54	38
Total Past Due	136	126	108
Current	2,752	2,912	2,769
Total Finance Receivables	2,888	3,038	2,877
91+ Still Accruing	11	18	14
Finance Receivables | Customer | Mining	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	23	12	12
Aging related to loans and finance leases	'	'	'
31-60 days past due	3	0	0
61-90 days past due	0	1	0
91 or more days past due	12	12	12
Total Past Due	15	13	12
Current	2,128	1,960	1,473
Total Finance Receivables	2,143	1,973	1,485
91+ Still Accruing	0	0	0
Finance Receivables | Customer | Latin America	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	179	148	108
Aging related to loans and finance leases	'	'	'
31-60 days past due	54	62	32
61-90 days past due	25	19	15
91 or more days past due	165	138	99
Total Past Due	244	219	146
Current	2,474	2,500	2,339
Total Finance Receivables	2,718	2,719	2,485
91+ Still Accruing	5	0	0
Finance Receivables | Customer | Caterpillar Power Finance	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	119	220	158
Aging related to loans and finance leases	'	'	'
31-60 days past due	55	15	14
61-90 days past due	30	14	16
91 or more days past due	60	126	125
Total Past Due	145	155	155
Current	2,946	3,017	2,765
Total Finance Receivables	3,091	3,172	2,920
91+ Still Accruing	0	4	25
Finance Receivables | Dealer	'	'	'
Non-accrual and past due loans and finance leases	'	'	'
Investment in loans and finance leases on nonaccrual status	0	0	0
Aging related to loans and finance leases	'	'	'
Total Finance Receivables	3,765	3,884	2,387
Finance Receivables | Dealer | North America	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	2,283	2,063	1,689
Total Finance Receivables	2,283	2,063	1,689
91+ Still Accruing	0	0	0
Finance Receivables | Dealer | Europe	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	150	185	57
Total Finance Receivables	150	185	57
91+ Still Accruing	0	0	0
Finance Receivables | Dealer | Asia Pacific	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	583	751	161
Total Finance Receivables	583	751	161
91+ Still Accruing	0	0	0
Finance Receivables | Dealer | Mining	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	1	1	0
Total Finance Receivables	1	1	0
91+ Still Accruing	0	0	0
Finance Receivables | Dealer | Latin America	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	748	884	480
Total Finance Receivables	748	884	480
91+ Still Accruing	0	0	0
Finance Receivables | Dealer | Caterpillar Power Finance	'	'	'
Aging related to loans and finance leases	'	'	'
31-60 days past due	0	0	0
61-90 days past due	0	0	0
91 or more days past due	0	0	0
Total Past Due	0	0	0
Current	0	0	0
Total Finance Receivables	0	0	0
91+ Still Accruing	$0	$0	$0

Cat_Financial_Financing_Activi6

Cat Financial Financing Activities (Details 5) (Finance Receivables, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finance Receivables	'	'	'
Increase (decrease) in the allowance for credit losses during the year	($48)	$57	'
Increase (decrease) in allowance for credit losses due to change in allowance rate	-55	6	'
Increase (decrease) in allowance for credit losses due to change in net finance receivables portfolio	7	51	'
Allowance for credit loss activity:	'	'	'
Balance at beginning of year	423	366	362
Receivables written off	-179	-149	-210
Recoveries on receivables previously written off	56	47	52
Provision for credit losses	84	160	168
Other-net	-9	-1	-6
Balance at end of year	375	423	366
Allowance for Credit Losses:	'	'	'
Individually evaluated for impairment	70	54	34
Collectively evaluated for impairment	305	369	332
Ending Balance - allowance for credit losses	375	423	366
Recorded Investment in Finance Receivables:	'	'	'
Individually evaluated for impairment	628	593	484
Collectively evaluated for impairment	23,433	22,715	19,496
Ending balance-recorded investment in finance receivables	24,061	23,308	19,980
Customer	'	'	'
Allowance for credit loss activity:	'	'	'
Balance at beginning of year	414	360	357
Receivables written off	-179	-149	-210
Recoveries on receivables previously written off	56	47	52
Provision for credit losses	83	157	167
Other-net	-9	-1	-6
Balance at end of year	365	414	360
Allowance for Credit Losses:	'	'	'
Individually evaluated for impairment	70	54	34
Collectively evaluated for impairment	295	360	326
Ending Balance - allowance for credit losses	365	414	360
Recorded Investment in Finance Receivables:	'	'	'
Individually evaluated for impairment	628	593	484
Collectively evaluated for impairment	19,668	18,831	17,109
Ending balance-recorded investment in finance receivables	20,296	19,424	17,593
Dealer	'	'	'
Allowance for credit loss activity:	'	'	'
Balance at beginning of year	9	6	5
Receivables written off	0	0	0
Recoveries on receivables previously written off	0	0	0
Provision for credit losses	1	3	1
Other-net	0	0	0
Balance at end of year	10	9	6
Allowance for Credit Losses:	'	'	'
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	10	9	6
Ending Balance - allowance for credit losses	10	9	6
Recorded Investment in Finance Receivables:	'	'	'
Individually evaluated for impairment	0	0	0
Collectively evaluated for impairment	3,765	3,884	2,387
Ending balance-recorded investment in finance receivables	$3,765	$3,884	$2,387

Cat_Financial_Financing_Activi7

Cat Financial Financing Activities (Details 6) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finance Receivables	'	'	'
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Finance Receivables	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	$24,061	$23,308	$19,980
Period after which collection of future income is considered as not probable (in days)	'120 days	'	'
Finance Receivables | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	23,636	22,795	19,508
Finance Receivables | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	425	513	472
Finance Receivables | North America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	8,864	8,030	7,291
Finance Receivables | North America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	8,838	7,971	7,179
Finance Receivables | North America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	26	59	112
Finance Receivables | Europe	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,025	2,740	2,281
Finance Receivables | Europe | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,997	2,702	2,223
Finance Receivables | Europe | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	28	38	58
Finance Receivables | Asia Pacific	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,471	3,789	3,038
Finance Receivables | Asia Pacific | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,421	3,753	3,014
Finance Receivables | Asia Pacific | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	50	36	24
Finance Receivables | Mining	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,144	1,974	1,485
Finance Receivables | Mining | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,121	1,962	1,473
Finance Receivables | Mining | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	23	12	12
Finance Receivables | Latin America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,466	3,603	2,965
Finance Receivables | Latin America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,287	3,455	2,857
Finance Receivables | Latin America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	179	148	108
Finance Receivables | Caterpillar Power Finance	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,091	3,172	2,920
Finance Receivables | Caterpillar Power Finance | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,972	2,952	2,762
Finance Receivables | Caterpillar Power Finance | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	119	220	158
Finance Receivables | Customer	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	20,296	19,424	17,593
Finance Receivables | Customer | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	19,871	18,911	17,121
Finance Receivables | Customer | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	425	513	472
Finance Receivables | Customer | North America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	6,581	5,967	5,602
Finance Receivables | Customer | North America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	6,555	5,908	5,490
Finance Receivables | Customer | North America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	26	59	112
Finance Receivables | Customer | Europe	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,875	2,555	2,224
Finance Receivables | Customer | Europe | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,847	2,517	2,166
Finance Receivables | Customer | Europe | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	28	38	58
Finance Receivables | Customer | Asia Pacific	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,888	3,038	2,877
Finance Receivables | Customer | Asia Pacific | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,838	3,002	2,853
Finance Receivables | Customer | Asia Pacific | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	50	36	24
Finance Receivables | Customer | Mining	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,143	1,973	1,485
Finance Receivables | Customer | Mining | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,120	1,961	1,473
Finance Receivables | Customer | Mining | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	23	12	12
Finance Receivables | Customer | Latin America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,718	2,719	2,485
Finance Receivables | Customer | Latin America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,539	2,571	2,377
Finance Receivables | Customer | Latin America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	179	148	108
Finance Receivables | Customer | Caterpillar Power Finance	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,091	3,172	2,920
Finance Receivables | Customer | Caterpillar Power Finance | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,972	2,952	2,762
Finance Receivables | Customer | Caterpillar Power Finance | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	119	220	158
Finance Receivables | Dealer	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,765	3,884	2,387
Finance Receivables | Dealer | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	3,765	3,884	2,387
Finance Receivables | Dealer | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | North America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,283	2,063	1,689
Finance Receivables | Dealer | North America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	2,283	2,063	1,689
Finance Receivables | Dealer | North America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Europe	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	150	185	57
Finance Receivables | Dealer | Europe | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	150	185	57
Finance Receivables | Dealer | Europe | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Asia Pacific	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	583	751	161
Finance Receivables | Dealer | Asia Pacific | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	583	751	161
Finance Receivables | Dealer | Asia Pacific | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Mining	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	1	1	0
Finance Receivables | Dealer | Mining | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	1	1	0
Finance Receivables | Dealer | Mining | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Latin America	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	748	884	480
Finance Receivables | Dealer | Latin America | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	748	884	480
Finance Receivables | Dealer | Latin America | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Caterpillar Power Finance	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Caterpillar Power Finance | Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	0	0	0
Finance Receivables | Dealer | Caterpillar Power Finance | Non-Performing	'	'	'
Finance Receivables	'	'	'
Ending balance-recorded investment in finance receivables	$0	$0	$0

Cat_Financial_Financing_Activi8

Cat Financial Financing Activities (Details 7) (Finance Receivables, USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	Contracts	Contracts	Contracts
Customer	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	194	199	125
Pre-TDR Outstanding Recorded Investment	$295	$284	$184
Post-TDR Outstanding Recorded Investment	299	284	184
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	26	67	70
Post-TDR Recorded Investment	7	26	101
Customer | North America	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	62	98	71
Pre-TDR Outstanding Recorded Investment	9	15	13
Post-TDR Outstanding Recorded Investment	9	15	13
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	19	49	48
Post-TDR Recorded Investment	4	4	26
Customer | Europe	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	51	21	7
Pre-TDR Outstanding Recorded Investment	7	8	44
Post-TDR Outstanding Recorded Investment	7	8	44
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	5	0	1
Post-TDR Recorded Investment	0	0	1
Customer | Asia Pacific	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	3	12	0
Pre-TDR Outstanding Recorded Investment	1	3	0
Post-TDR Outstanding Recorded Investment	1	3	0
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	0	2	0
Post-TDR Recorded Investment	0	1	0
Customer | Mining	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	45	0	0
Pre-TDR Outstanding Recorded Investment	123	0	0
Post-TDR Outstanding Recorded Investment	123	0	0
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	0	0	0
Post-TDR Recorded Investment	0	0	0
Customer | Latin America	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	16	41	12
Pre-TDR Outstanding Recorded Investment	2	5	10
Post-TDR Outstanding Recorded Investment	2	5	10
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	0	0	7
Post-TDR Recorded Investment	0	0	4
Customer | Caterpillar Power Finance	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	17	27	35
Pre-TDR Outstanding Recorded Investment	153	253	117
Post-TDR Outstanding Recorded Investment	157	253	117
Additional investments not recorded	25	24	15
Remaining commitments	6	'	'
TDRs which had been modified within twelve months prior to the default date	'	'	'
Number of Contracts	2	16	14
Post-TDR Recorded Investment	$3	$21	$70
Dealer	'	'	'
Loan and finance lease receivables modified as TDRs	'	'	'
Number of Contracts (in contracts)	0	0	0

Cat_Financial_Financing_Activi9

Cat Financial Financing Activities (Details 8) (Asset-backed securities, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Asset-backed securities	'	'	'
Finance Receivables	'	'	'
Restricted assets of consolidated VIE	$0	$0	$0
Restricted liabilities of consolidated VIE	$0	$0	$0

Inventories_Details

Inventories (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Inventory Disclosure [Abstract]	'	'	'
Raw materials	$2,966	$3,573	$3,766
Work-in-process	2,589	2,920	2,959
Finished goods	6,785	8,767	7,562
Supplies	285	287	257
Total inventories	12,625	15,547	14,544
Long-term material purchase obligations	1,568	'	'
Liquidation of LIFO layers effect on cost of goods sold	115	'	'
Liquidation of LIFO layers effect on profit	$81	'	'
Liquidation of LIFO layers effect on profit per share	$0.12	'	'

Property_plant_and_equipment_D

Property, plant and equipment (Details) (USD $)

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

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

In Millions, unless otherwise specified

Land

Land

Land

Buildings and land improvements

Buildings and land improvements

Buildings and land improvements

Machinery, equipment and other

Machinery, equipment and other

Machinery, equipment and other

Equipment leased to others

Equipment leased to others

Equipment leased to others

Construction-in-process

Construction-in-process

Construction-in-process

Minimum

Minimum

Minimum

Maximum

Maximum

Maximum

Buildings and land improvements

Machinery, equipment and other

Equipment leased to others

Buildings and land improvements

Machinery, equipment and other

Equipment leased to others

Property, plant and equipment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Useful Lives (Years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'20 years

'3 years

'1 year

'45 years

'10 years

'10 years

Total property, plant and equipment, at cost

$31,316

$29,932

$27,326

$688

$723

$753

$6,928

$6,214

$5,857

$16,793

$16,073

$14,435

$5,365

$4,658

$4,285

$1,542

$2,264

$1,996

'

'

'

'

'

'

Less: Accumulated depreciation

-14,241

-13,471

-12,931

'

'

'

'

'

'

'

'

'

-1,521

-1,383

-1,406

'

'

'

'

'

'

'

'

'

Property, plant and equipment - net

17,075

16,461

14,395

'

'

'

'

'

'

'

'

'

3,844

3,275

2,879

'

'

'

'

'

'

'

'

'

Commitments for the purchase or construction of capital assets

269

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assets recorded under capital leases

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross capital leases

125

134

131

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Less: Accumulated depreciation

-50

-58

-75

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net capital leases

75

76

56

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum rental payments on assets recorded under capital leases were:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

10

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2015

14

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2016

22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2017

7

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2018

7

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

47

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Minimum rental payments to be received for equipment leased to others were:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

916

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2015

626

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2016

379

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2017

191

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2018

95

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

$45

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investments_in_unconsolidated_2

Investments in unconsolidated affiliated companies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jul. 31, 2012
				Third party logistics business
Results of Operations of unconsolidated affiliated companies:	'	'	'	'
Sales	$1,336	$1,084	$966	'
Cost of sales	1,048	872	797	'
Gross profit	288	212	169	'
Profit (loss)	-28	28	-46	'
Assets:	'	'	'	'
Current assets	683	715	345	'
Property, plant and equipment - net	710	529	200	'
Other assets	608	616	9	'
Assets	2,001	1,860	554	'
Liabilities:	'	'	'	'
Current liabilities	437	443	220	'
Long-term debt due after one year	900	708	72	'
Other liabilities	262	170	17	'
Liabilities	1,599	1,321	309	'
Equity	402	539	245	'
Caterpillar's investments in unconsolidated affiliated companies:	'	'	'	'
Investments in equity method companies	262	256	111	'
Plus: Investments in cost method companies	10	16	22	'
Total investments in unconsolidated affiliated companies	$272	$272	$133	'
Disposal groups	'	'	'	'
Percentage of equity interest retained in subsidiary (as a percent)	'	'	'	35.00%

Intangible_assets_and_goodwill2

Intangible assets and goodwill (Details) (USD $)

12 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

1 Months Ended

12 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 30, 2013

31-May-12

Mar. 31, 2012

Dec. 31, 2011

Aug. 31, 2011

Oct. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Johan Walter Berg AB

ERA Mining Machinery Limited (Siwei)

Caterpillar Tohoku Ltd.

Bucyrus International, Inc.

Pyroban Group Limited

MWM Holding GmbH

Customer relationships

Customer relationships

Customer relationships

Customer relationships

Intellectual property

Intellectual property

Intellectual property

Other

Other

Other

Bucyrus International, Inc.

Intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted Amortizable Life (in years)

'13 years

'13 years

'13 years

'

'

'

'

'

'

'15 years

'15 years

'15 years

'

'11 years

'12 years

'11 years

'10 years

'10 years

'11 years

Gross Carrying Amount

$4,748

$4,822

$4,904

'

'

'

'

'

'

$2,653

$2,756

$2,811

'

$1,821

$1,767

$1,794

$274

$299

$299

Accumulated Amortization

-1,170

-824

-554

'

'

'

'

'

'

-539

-377

-213

'

-495

-342

-244

-136

-105

-97

Net

3,578

3,998

4,350

'

'

'

'

'

'

2,114

2,379

2,598

'

1,326

1,425

1,550

138

194

202

Indefinite-lived intangible assets - In-process research & development

18

18

18

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total intangible assets, net

3,596

4,016

4,368

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total intangible assets, gross carrying amount

4,766

4,840

4,922

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-lived intangible assets acquired

70

120

4,167

70

112

8

3,901

41

221

'

'

'

'

'

'

'

'

'

'

Gross intangible assets classified to held for sale and/or divested

'

'

'

'

'

'

'

'

'

168

207

'

'

'

'

'

'

'

'

Accumulated amortization classified to held for sale and/or divested

'

'

'

'

'

'

'

'

'

-25

-93

'

'

'

'

'

'

'

'

Impaired finite-lived intangible assets, gross

'

'

'

'

'

'

'

'

'

'

51

'

'

'

'

'

'

'

'

Impaired finite-lived intangible assets, accumulated amortization

'

'

'

'

'

'

'

'

'

'

-29

'

'

'

'

'

'

'

'

Finite-lived intangible asset impairment

'

'

'

'

'

'

'

'

'

'

22

'

'

'

'

'

'

'

'

Customer relationship intangibles sold

'

'

'

'

'

'

'

'

'

'

'

'

63

'

'

'

'

'

'

Intangible assets classified as held for sale

'

'

'

'

'

'

'

'

'

'

'

'

186

'

'

'

'

'

'

Amortization expense

371

387

233

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2014

365

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2015

354

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2016

333

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2017

331

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2018

327

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Thereafter

$1,886

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intangible_assets_and_goodwill3

Intangible assets and goodwill (Details 2) (USD $)

3 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Sep. 30, 2013

31-May-12

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2012

Aug. 31, 2011

Oct. 31, 2011

Dec. 31, 2012

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

Johan Walter Berg AB

Johan Walter Berg AB

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

Caterpillar Tohoku Ltd.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Pyroban Group Limited

MWM Holding GmbH

MWM Holding GmbH

Construction Industries

Construction Industries

Construction Industries

Resource Industries

Resource Industries

Resource Industries

Power Systems

Power Systems

Power Systems

Other

Other

Other

Carrying amount of goodwill by reportable segment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill acquired

'

$106

$628

$5,026

$106

'

$625

'

$22

'

$4,616

'

$23

$387

'

$0

$22

$0

$0

$597

$4,616

$106

$9

$410

$0

$0

$0

Goodwill final allocation of purchase price adjustment, increase (decrease)

'

'

'

'

'

'

'

149

'

-647

'

-28

'

'

9

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill reclassified to held for sale and/or divested

'

65

181

409

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill, beginning of year

'

7,544

7,102

2,636

'

'

'

'

'

'

'

'

'

'

'

382

378

357

4,559

4,121

73

2,486

2,486

2,077

117

117

129

Impairments, beginning of year

'

-602

-22

-22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-602

-22

-22

'

'

'

'

'

'

Net Goodwill, beginning of year

'

6,942

7,080

2,614

'

106

'

'

'

'

'

'

'

'

'

382

378

357

3,957

4,099

51

2,486

2,486

2,077

117

117

129

Acquisitions

'

106

628

5,026

106

'

625

'

22

'

4,616

'

23

387

'

0

22

0

0

597

4,616

106

9

410

0

0

0

Held for Sale and Business Divestitures

'

-65

-181

-409

'

'

'

'

'

'

'

'

'

'

'

0

0

0

-55

-181

-397

-10

0

0

0

0

-12

Impairment Loss

-580

0

-580

0

'

'

'

-580

'

'

'

'

'

'

'

0

0

0

0

-580

0

0

0

0

0

0

0

Other Adjustments

'

-27

-5

-151

'

'

'

'

'

'

'

'

'

'

'

-56

-18

21

11

22

-171

18

-9

-1

0

0

0

Goodwill, end of year

7,544

7,558

7,544

7,102

'

'

'

'

'

'

'

'

'

'

'

326

382

378

4,515

4,559

4,121

2,600

2,486

2,486

117

117

117

Impairments, end of year

-602

-602

-602

-22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-602

-602

-22

'

'

'

'

'

'

Net Goodwill, end of year

$6,942

$6,956

$6,942

$7,080

'

$106

$625

$45

$22

'

'

'

$23

'

'

$326

$382

$378

$3,913

$3,957

$4,099

$2,600

$2,486

$2,486

$117

$117

$117

Availableforsale_securities_De

Available-for-sale securities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	$1,438	$1,479	$1,375
Unrealized pretax net gains (losses)	132	107	72
Fair Value	1,570	1,586	1,447
U.S. treasury bonds	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	10	10	10
Unrealized pretax net gains (losses)	0	0	0
Fair Value	10	10	10
Other U.S. and non-U.S. government bonds	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	119	144	90
Unrealized pretax net gains (losses)	1	2	2
Fair Value	120	146	92
Corporate bonds	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	612	626	542
Unrealized pretax net gains (losses)	21	38	30
Fair Value	633	664	572
Asset-backed securities	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	72	96	112
Unrealized pretax net gains (losses)	0	0	-1
Fair Value	72	96	111
U.S. governmental agency mortgage-backed securities	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	322	291	297
Unrealized pretax net gains (losses)	-1	8	13
Fair Value	321	299	310
Residential	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	18	26	33
Unrealized pretax net gains (losses)	0	-1	-3
Fair Value	18	25	30
Commercial	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	87	117	142
Unrealized pretax net gains (losses)	6	10	3
Fair Value	93	127	145
Large capitalization value	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	173	147	127
Unrealized pretax net gains (losses)	81	38	21
Fair Value	254	185	148
Smaller company growth	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	25	22	22
Unrealized pretax net gains (losses)	24	12	7
Fair Value	$49	$34	$29

Availableforsale_securities_De1

Available-for-sale securities (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]	'	'	'
Charges for other-than-temporary declines in the value of securities	$1	$2	$5
Less than 12 months	'	'	'
Fair Value	305	109	164
Unrealized Losses	6	3	8
12 months or more	'	'	'
Fair Value	86	59	53
Unrealized Losses	3	5	10
Total	'	'	'
Fair Value	391	168	217
Unrealized Losses	9	8	18
Corporate bonds	'	'	'
Less than 12 months	'	'	'
Fair Value	159	'	54
Unrealized Losses	2	'	1
12 months or more	'	'	'
Fair Value	1	'	1
Unrealized Losses	0	'	0
Total	'	'	'
Fair Value	160	'	55
Unrealized Losses	2	'	1
Asset-backed securities	'	'	'
Less than 12 months	'	'	'
Fair Value	6	0	1
Unrealized Losses	0	0	0
12 months or more	'	'	'
Fair Value	20	20	20
Unrealized Losses	1	3	5
Total	'	'	'
Fair Value	26	20	21
Unrealized Losses	1	3	5
U.S. governmental agency mortgage-backed securities	'	'	'
Less than 12 months	'	'	'
Fair Value	140	84	51
Unrealized Losses	4	1	1
12 months or more	'	'	'
Fair Value	65	15	0
Unrealized Losses	2	0	0
Total	'	'	'
Fair Value	205	99	51
Unrealized Losses	6	1	1
Residential	'	'	'
Less than 12 months	'	'	'
Fair Value	'	0	3
Unrealized Losses	'	0	0
12 months or more	'	'	'
Fair Value	'	14	18
Unrealized Losses	'	1	3
Total	'	'	'
Fair Value	'	14	21
Unrealized Losses	'	1	3
Commercial	'	'	'
Less than 12 months	'	'	'
Fair Value	'	'	15
Unrealized Losses	'	'	0
12 months or more	'	'	'
Fair Value	'	'	8
Unrealized Losses	'	'	1
Total	'	'	'
Fair Value	'	'	23
Unrealized Losses	'	'	1
Large capitalization value	'	'	'
Less than 12 months	'	'	'
Fair Value	'	25	36
Unrealized Losses	'	2	5
12 months or more	'	'	'
Fair Value	'	10	6
Unrealized Losses	'	1	1
Total	'	'	'
Fair Value	'	35	42
Unrealized Losses	'	3	6
Smaller company growth	'	'	'
Less than 12 months	'	'	'
Fair Value	'	'	4
Unrealized Losses	'	'	1
12 months or more	'	'	'
Fair Value	'	'	0
Unrealized Losses	'	'	0
Total	'	'	'
Fair Value	'	'	4
Unrealized Losses	'	'	$1

Availableforsale_securities_De2

Available-for-sale securities (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]	'	'	'
Due in one year or less, Cost Basis	$187	'	'
Due after one year through five years, Cost Basis	572	'	'
Due after five years through ten years, Cost Basis	24	'	'
Due after ten years, Cost Basis	30	'	'
Due in one year or less, Fair Value	188	'	'
Due after one year through five years, Fair Value	592	'	'
Due after five years through ten years, Fair Value	25	'	'
Due after ten years, Fair Value	30	'	'
Cost Basis	1,240	'	'
Fair Value	1,267	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	1,438	1,479	1,375
Fair Value	1,570	1,586	1,447
Available-for-sale Securities, Proceeds, Gains and Losses	'	'	'
Proceeds from the sale of available-for-sale securities	449	306	247
Gross gains from the sale of available-for-sale securities	22	6	4
Gross losses from the sale of available-for-sale securities	2	0	1
U.S. governmental agency mortgage-backed securities	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	322	291	297
Fair Value	321	299	310
Residential	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	18	26	33
Fair Value	18	25	30
Commercial	'	'	'
Schedule of Available-for-sale Securities	'	'	'
Cost Basis	87	117	142
Fair Value	$93	$127	$145

Postemployment_benefit_plans_D

Postemployment benefit plans (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Feb. 29, 2012	Aug. 31, 2012	Feb. 29, 2012	Feb. 29, 2012
		U.S. Pension Benefits	Non-U.S. Pension Benefits	Other Postretirement Benefits
Amendments to Pension and Other Postretirement Benefit Plans	'	'	'	'
Curtailments, settlements and termination benefits	'	$7	$10	($37)
Defined benefit plan loss of third party receivable	'	'	'	21
Net gain due to facility closure	6	'	'	'
Net increase in liability due to curtailment and remeasurement	'	243	'	'
Decrease (increase) in accumulated other comprehensive income	'	$153	'	'

Postemployment_benefit_plans_D1

Postemployment benefit plans (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
U.S. Pension Benefits	'	'	'
Change in benefit obligation:	'	'	'
Benefit obligation, beginning of year	$15,913	$14,782	$13,024
Service cost	196	185	158
Interest cost	581	609	651
Plan amendments	0	0	1
Actuarial losses (gains)	-1,450	1,168	1,635
Foreign currency exchange rates	0	0	0
Participant contributions	0	0	0
Benefits paid - gross	-845	-831	-823
Less: federal subsidy on benefits paid	0	0	0
Curtailments, settlements and termination benefits	-7	0	-3
Acquisitions, divestitures and other	31	0	139
Benefit obligation, end of year	14,419	15,913	14,782
Accumulated benefit obligation, end of year	14,056	15,132	14,055
Weighted-average assumptions used to determine benefit obligation:	'	'	'
Discount rate (as a percent)	4.60%	3.70%	4.30%
Rate of compensation increase (as a percent)	4.00%	4.50%	4.50%
Non-U.S. Pension Benefits	'	'	'
Change in benefit obligation:	'	'	'
Benefit obligation, beginning of year	4,737	4,299	3,867
Service cost	120	108	115
Interest cost	166	182	182
Plan amendments	0	12	-24
Actuarial losses (gains)	-41	385	312
Foreign currency exchange rates	-81	49	-32
Participant contributions	10	9	9
Benefits paid - gross	-254	-190	-187
Less: federal subsidy on benefits paid	0	0	0
Curtailments, settlements and termination benefits	-56	-67	-83
Acquisitions, divestitures and other	8	-50	140
Benefit obligation, end of year	4,609	4,737	4,299
Accumulated benefit obligation, end of year	4,247	4,329	3,744
Weighted-average assumptions used to determine benefit obligation:	'	'	'
Discount rate (as a percent)	4.10%	3.70%	4.30%
Rate of compensation increase (as a percent)	4.20%	3.90%	3.90%
Other Postretirement Benefits	'	'	'
Change in benefit obligation:	'	'	'
Benefit obligation, beginning of year	5,453	5,381	5,184
Service cost	108	92	84
Interest cost	195	221	253
Plan amendments	1	-38	-121
Actuarial losses (gains)	-658	186	306
Foreign currency exchange rates	-19	-11	-19
Participant contributions	57	48	44
Benefits paid - gross	-339	-394	-388
Less: federal subsidy on benefits paid	8	16	14
Curtailments, settlements and termination benefits	0	-48	-6
Acquisitions, divestitures and other	-22	0	30
Benefit obligation, end of year	4,784	5,453	5,381
Weighted-average assumptions used to determine benefit obligation:	'	'	'
Discount rate (as a percent)	4.60%	3.70%	4.30%
Rate of compensation increase (as a percent)	4.00%	4.40%	4.40%
Effect of a one-percentage-point change in assumed health care cost trend	'	'	'
Effect of a one-percentage-point increase in current year service and interest cost components of other postretirement benefit cost	26	'	'
Effect of a one-percentage-point decrease in current year service and interest cost components of other postretirement benefit cost	-22	'	'
Effect of a one-percentage-point increase on accumulated postretirement benefit obligation	274	'	'
Effect of a one-percentage-point decrease on accumulated postretirement benefit obligation	($230)	'	'

Postemployment_benefit_plans_D2

Postemployment benefit plans (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
U.S. Pension Benefits	'	'	'
Change in plan assets:	'	'	'
Fair value of plan assets, beginning of year	$10,981	$9,997	$10,760
Actual return on plan assets	1,722	1,235	-270
Foreign currency exchange rates	0	0	0
Company contributions	541	580	212
Participant contributions	0	0	0
Benefits paid	-845	-831	-823
Settlements and termination benefits	-4	0	0
Acquisitions / other	0	0	118
Fair value of plan assets, end of year	12,395	10,981	9,997
Information about plan asset allocations	'	'	'
Rebalancing of plan assets outside of target allocation (as a percent)	5.00%	'	'
U.S. Pension Benefits | Equities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	60.00%	'	'
U.S. Pension Benefits | Debt securities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	40.00%	'	'
U.S. Pension Benefits | Real estate	'	'	'
Change in plan assets:	'	'	'
Fair value of plan assets, end of year	8	8	8
Non-U.S. Pension Benefits	'	'	'
Change in plan assets:	'	'	'
Fair value of plan assets, beginning of year	3,426	2,818	2,880
Actual return on plan assets	535	368	-83
Foreign currency exchange rates	-41	47	-1
Company contributions	303	446	234
Participant contributions	10	9	9
Benefits paid	-254	-190	-187
Settlements and termination benefits	-30	-72	-41
Acquisitions / other	0	0	7
Fair value of plan assets, end of year	3,949	3,426	2,818
Non-U.S. Pension Benefits | Equities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	59.00%	'	'
Non-U.S. Pension Benefits | Debt securities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	32.00%	'	'
Non-U.S. Pension Benefits | Real estate	'	'	'
Change in plan assets:	'	'	'
Fair value of plan assets, beginning of year	218	'	'
Fair value of plan assets, end of year	247	'	197
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	7.00%	'	'
Non-U.S. Pension Benefits | Other	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	2.00%	'	'
Other Postretirement Benefits	'	'	'
Change in plan assets:	'	'	'
Fair value of plan assets, beginning of year	789	814	996
Actual return on plan assets	158	117	-45
Foreign currency exchange rates	0	0	0
Company contributions	157	204	207
Participant contributions	57	48	44
Benefits paid	-339	-394	-388
Settlements and termination benefits	0	0	0
Acquisitions / other	0	0	0
Fair value of plan assets, end of year	$822	$789	$814
Other Postretirement Benefits | Equities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	70.00%	'	'
Other Postretirement Benefits | Debt securities	'	'	'
Information about plan asset allocations	'	'	'
Target allocation of plan assets (as a percent)	30.00%	'	'

Postemployment_benefit_plans_D3

Postemployment benefit plans (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
U.S. Pension Benefits	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	$12,395	$10,981	$9,997	$10,760
Caterpillar Inc. common stock	495	597	653	'
Percentage of Caterpillar common stock to total plan assets	4.00%	5.00%	7.00%	'
U.S. Pension Benefits | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	4,466	4,561	4,391	'
U.S. Pension Benefits | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	3,058	2,693	2,366	'
U.S. Pension Benefits | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	2,157	1,513	1,213	'
U.S. Pension Benefits | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	347	241	149	'
U.S. Pension Benefits | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	774	702	469	'
U.S. Pension Benefits | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	905	795	894	'
U.S. Pension Benefits | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	52	36	31	'
U.S. Pension Benefits | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	8	8	8	'
U.S. Pension Benefits | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	628	432	476	'
U.S. Pension Benefits | Level 1	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	7,417	7,164	6,728	'
U.S. Pension Benefits | Level 1 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	4,337	4,460	4,314	'
U.S. Pension Benefits | Level 1 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	3,058	2,691	2,366	'
U.S. Pension Benefits | Level 1 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 1 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	22	13	48	'
U.S. Pension Benefits | Level 2	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	4,787	3,666	3,133	'
U.S. Pension Benefits | Level 2 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	3	0	'
U.S. Pension Benefits | Level 2 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	2	0	'
U.S. Pension Benefits | Level 2 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	2,123	1,490	1,178	'
U.S. Pension Benefits | Level 2 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	327	231	143	'
U.S. Pension Benefits | Level 2 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	774	694	462	'
U.S. Pension Benefits | Level 2 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	905	794	891	'
U.S. Pension Benefits | Level 2 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	52	33	31	'
U.S. Pension Benefits | Level 2 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 2 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	606	419	428	'
U.S. Pension Benefits | Level 3	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	191	151	136	'
U.S. Pension Benefits | Level 3 | Equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	129	98	77	50
U.S. Pension Benefits | Level 3 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	129	98	77	'
U.S. Pension Benefits | Level 3 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
U.S. Pension Benefits | Level 3 | Fixed income securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	54	45	51	48
U.S. Pension Benefits | Level 3 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	34	23	35	'
U.S. Pension Benefits | Level 3 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	20	10	6	'
U.S. Pension Benefits | Level 3 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	8	7	'
U.S. Pension Benefits | Level 3 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	1	3	'
U.S. Pension Benefits | Level 3 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	3	0	'
U.S. Pension Benefits | Level 3 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	8	8	8	10
U.S. Pension Benefits | Level 3 | Other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	0
U.S. Pension Benefits | Level 3 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	3,949	3,426	2,818	2,880
Caterpillar Inc. common stock	0	1	1	'
Non-U.S. Pension Benefits | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	608	438	357	'
Non-U.S. Pension Benefits | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	1,182	1,156	906	'
Non-U.S. Pension Benefits | Global equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	289	271	238	'
Non-U.S. Pension Benefits | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	93	40	20	'
Non-U.S. Pension Benefits | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	546	496	400	'
Non-U.S. Pension Benefits | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	3	3	3	'
Non-U.S. Pension Benefits | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	418	169	200	'
Non-U.S. Pension Benefits | Global fixed income	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	397	403	363	'
Non-U.S. Pension Benefits | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	247	218	197	'
Non-U.S. Pension Benefits | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	166	232	134	'
Non-U.S. Pension Benefits | Level 1	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	2,005	1,903	1,485	'
Non-U.S. Pension Benefits | Level 1 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	607	436	356	'
Non-U.S. Pension Benefits | Level 1 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	1,022	1,038	822	'
Non-U.S. Pension Benefits | Level 1 | Global equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	235	244	198	'
Non-U.S. Pension Benefits | Level 1 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | Global fixed income	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 1 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	141	185	109	'
Non-U.S. Pension Benefits | Level 2	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	1,812	1,414	1,227	'
Non-U.S. Pension Benefits | Level 2 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	1	2	1	'
Non-U.S. Pension Benefits | Level 2 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	160	118	84	'
Non-U.S. Pension Benefits | Level 2 | Global equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	54	27	40	'
Non-U.S. Pension Benefits | Level 2 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	84	37	16	'
Non-U.S. Pension Benefits | Level 2 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	534	494	395	'
Non-U.S. Pension Benefits | Level 2 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	3	3	3	'
Non-U.S. Pension Benefits | Level 2 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	418	169	200	'
Non-U.S. Pension Benefits | Level 2 | Global fixed income	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	397	403	363	'
Non-U.S. Pension Benefits | Level 2 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	136	114	100	'
Non-U.S. Pension Benefits | Level 2 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	25	47	25	'
Non-U.S. Pension Benefits | Level 3	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	132	109	106	'
Non-U.S. Pension Benefits | Level 3 | Equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	1
Non-U.S. Pension Benefits | Level 3 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Global equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Fixed income securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	21	5	9	8
Non-U.S. Pension Benefits | Level 3 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	9	3	4	'
Non-U.S. Pension Benefits | Level 3 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	12	2	5	'
Non-U.S. Pension Benefits | Level 3 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Global fixed income	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Non-U.S. Pension Benefits | Level 3 | Real estate	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	111	104	97	90
Non-U.S. Pension Benefits | Level 3 | Other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	35
Non-U.S. Pension Benefits | Level 3 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	822	789	814	996
Caterpillar Inc. common stock	0	1	1	'
Other Postretirement Benefits | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	388	387	410	'
Other Postretirement Benefits | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	189	194	191	'
Other Postretirement Benefits | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	101	70	67	'
Other Postretirement Benefits | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	17	11	8	'
Other Postretirement Benefits | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	23	27	21	'
Other Postretirement Benefits | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	49	33	47	'
Other Postretirement Benefits | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	2	2	1	'
Other Postretirement Benefits | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	53	65	69	'
Other Postretirement Benefits | Level 1	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	585	599	605	'
Other Postretirement Benefits | Level 1 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	388	387	410	'
Other Postretirement Benefits | Level 1 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	189	194	191	'
Other Postretirement Benefits | Level 1 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 1 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 1 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 1 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 1 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 1 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	8	18	4	'
Other Postretirement Benefits | Level 2	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	237	190	209	'
Other Postretirement Benefits | Level 2 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 2 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 2 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	101	70	67	'
Other Postretirement Benefits | Level 2 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	17	11	8	'
Other Postretirement Benefits | Level 2 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	23	27	21	'
Other Postretirement Benefits | Level 2 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	49	33	47	'
Other Postretirement Benefits | Level 2 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	2	2	1	'
Other Postretirement Benefits | Level 2 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	45	47	65	'
Other Postretirement Benefits | Level 3	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | Non-U.S. equities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | Non-U.S. corporate bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | U.S. governmental agency mortgage-backed securities	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | Non-U.S. government bonds	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	0	0	0	'
Other Postretirement Benefits | Level 3 | Cash, short-term instruments and other	'	'	'	'
Defined Benefit Plan Disclosure	'	'	'	'
Total Assets, at Fair Value	$0	$0	$0	'

Postemployment_benefit_plans_D4

Postemployment benefit plans (Details 5) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

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

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, 2010

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

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, 2010

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

In Millions, unless otherwise specified

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Non-U.S. Pension Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Other Postretirement Benefits

Real estate

Real estate

Real estate

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Real estate

Real estate

Real estate

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Level 3

Equities

Equities

Equities

Fixed income securities

Fixed income securities

Fixed income securities

Real estate

Real estate

Real estate

Other

Other

Other

Equities

Equities

Equities

Fixed income securities

Fixed income securities

Fixed income securities

Real estate

Real estate

Real estate

Other

Other

Other

Change in Fair Value of Plan Assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of plan assets, beginning of year

$12,395

$10,981

$9,997

$10,760

$8

$8

$8

$191

$151

$136

$98

$77

$50

$45

$51

$48

$8

$8

$10

$0

$0

$0

$3,949

$3,426

$2,818

$2,880

$247

$218

$197

$132

$109

$106

$0

$0

$1

$5

$9

$8

$104

$97

$90

$0

$0

$35

$822

$789

$814

$996

$0

$0

$0

Unrealized gains (losses)

'

'

'

'

'

'

'

'

'

'

10

-4

-4

-1

0

-2

0

0

-2

0

-1

0

'

'

'

'

'

'

'

'

'

'

0

0

0

0

0

1

7

8

7

0

0

0

'

'

'

'

'

'

'

Realized gains (losses)

'

'

'

'

'

'

'

'

'

'

4

4

1

0

2

0

0

0

0

0

0

0

'

'

'

'

'

'

'

'

'

'

0

0

0

0

0

0

0

0

0

0

0

3

'

'

'

'

'

'

'

Purchases, issuances and settlements

'

'

'

'

'

'

'

'

'

'

17

21

30

12

-4

17

0

0

0

0

1

0

'

'

'

'

'

'

'

'

'

'

0

0

-1

16

-1

0

0

-1

0

0

0

-38

'

'

'

'

'

'

'

Transfers in and/or out of Level 3

'

'

'

'

'

'

'

'

'

'

0

0

0

-2

-4

-12

0

0

0

0

0

0

'

'

'

'

'

'

'

'

'

'

0

0

0

0

-3

0

0

0

0

0

0

0

'

'

'

'

'

'

'

Fair value of plan assets, end of year

$12,395

$10,981

$9,997

$10,760

$8

$8

$8

$191

$151

$136

$129

$98

$77

$54

$45

$51

$8

$8

$8

$0

$0

$0

$3,949

$3,426

$2,818

$2,880

$247

$218

$197

$132

$109

$106

$0

$0

$0

$21

$5

$9

$111

$104

$97

$0

$0

$0

$822

$789

$814

$996

$0

$0

$0

Postemployment_benefit_plans_D5

Postemployment benefit plans (Details 6) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
U.S. Pension Benefits	'	'	'	'
Funded Status, end of year	'	'	'	'
Fair value of plan assets, end of year	$12,395	$10,981	$9,997	$10,760
Benefit obligations, end of year	14,419	15,913	14,782	13,024
Over (under) funded status recognized in financial position	-2,024	-4,932	-4,785	'
Components of net amount recognized in financial position:	'	'	'	'
Other assets (non-current asset)	5	0	0	'
Accrued wages, salaries and employee benefits (current liability)	-26	-23	-21	'
Liability for postemployment benefits (non-current liability)	-2,003	-4,909	-4,764	'
Net liability recognized	-2,024	-4,932	-4,785	'
Amounts recognized in Accumulated other comprehensive income (pre-tax) consist of:	'	'	'	'
Net actuarial loss (gain)	4,396	7,286	7,044	'
Prior service cost (credit)	19	36	63	'
Transition obligation (asset)	0	0	0	'
Total	4,415	7,322	7,107	'
Estimated amounts that will be amortized from Accumulated other comprehensive income (loss) during the next fiscal year	'	'	'	'
Actuarial loss (gain)	392	'	'	'
Prior service cost (credit)	17	'	'	'
Transition obligation (asset)	0	'	'	'
Total	409	'	'	'
Pension plans with projected benefit obligations in excess of plan assets	'	'	'	'
Projected benefit obligation	14,352	15,913	14,782	'
Accumulated benefit obligation	13,989	15,132	14,055	'
Fair value of plan assets	12,323	10,981	9,997	'
Pension plans with accumulated benefit obligations in excess of plan assets	'	'	'	'
Projected benefit obligation	14,352	15,913	14,782	'
Accumulated benefit obligation	13,989	15,132	14,055	'
Fair value of plan assets	12,323	10,981	9,997	'
Non-U.S. Pension Benefits	'	'	'	'
Funded Status, end of year	'	'	'	'
Fair value of plan assets, end of year	3,949	3,426	2,818	2,880
Benefit obligations, end of year	4,609	4,737	4,299	3,867
Over (under) funded status recognized in financial position	-660	-1,311	-1,481	'
Components of net amount recognized in financial position:	'	'	'	'
Other assets (non-current asset)	123	30	3	'
Accrued wages, salaries and employee benefits (current liability)	-29	-27	-26	'
Liability for postemployment benefits (non-current liability)	-754	-1,314	-1,458	'
Net liability recognized	-660	-1,311	-1,481	'
Amounts recognized in Accumulated other comprehensive income (pre-tax) consist of:	'	'	'	'
Net actuarial loss (gain)	1,373	1,907	1,712	'
Prior service cost (credit)	13	22	15	'
Transition obligation (asset)	0	0	0	'
Total	1,386	1,929	1,727	'
Estimated amounts that will be amortized from Accumulated other comprehensive income (loss) during the next fiscal year	'	'	'	'
Actuarial loss (gain)	86	'	'	'
Prior service cost (credit)	1	'	'	'
Transition obligation (asset)	0	'	'	'
Total	87	'	'	'
Pension plans with projected benefit obligations in excess of plan assets	'	'	'	'
Projected benefit obligation	4,177	4,310	4,293	'
Accumulated benefit obligation	3,820	3,903	3,738	'
Fair value of plan assets	3,394	2,969	2,809	'
Pension plans with accumulated benefit obligations in excess of plan assets	'	'	'	'
Projected benefit obligation	1,436	4,107	4,112	'
Accumulated benefit obligation	1,374	3,752	3,600	'
Fair value of plan assets	797	2,806	2,661	'
Other Postretirement Benefits	'	'	'	'
Funded Status, end of year	'	'	'	'
Fair value of plan assets, end of year	822	789	814	996
Benefit obligations, end of year	4,784	5,453	5,381	5,184
Over (under) funded status recognized in financial position	-3,962	-4,664	-4,567	'
Components of net amount recognized in financial position:	'	'	'	'
Other assets (non-current asset)	0	0	0	'
Accrued wages, salaries and employee benefits (current liability)	-169	-169	-171	'
Liability for postemployment benefits (non-current liability)	-3,793	-4,495	-4,396	'
Net liability recognized	-3,962	-4,664	-4,567	'
Amounts recognized in Accumulated other comprehensive income (pre-tax) consist of:	'	'	'	'
Net actuarial loss (gain)	662	1,528	1,495	'
Prior service cost (credit)	-84	-159	-188	'
Transition obligation (asset)	0	3	5	'
Total	578	1,372	1,312	'
Estimated amounts that will be amortized from Accumulated other comprehensive income (loss) during the next fiscal year	'	'	'	'
Actuarial loss (gain)	41	'	'	'
Prior service cost (credit)	-54	'	'	'
Transition obligation (asset)	0	'	'	'
Total	($13)	'	'	'

Postemployment_benefit_plans_D6

Postemployment benefit plans (Details 7) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
U.S. Pension Benefits	'
Expected cash flow for pension and other Postretirement benefit plans	'
Employer contribution expected for 2014	$240
Expected benefit payments for 2014	890
Expected benefit payments for 2015	900
Expected benefit payments for 2016	910
Expected benefit payments for 2017	930
Expected benefit payments for 2018	940
Expected benefit payments from 2019-2023	4,810
Total expected benefit payments	9,380
Non-U.S. Pension Benefits	'
Expected cash flow for pension and other Postretirement benefit plans	'
Employer contribution expected for 2014	270
Expected benefit payments for 2014	250
Expected benefit payments for 2015	210
Expected benefit payments for 2016	220
Expected benefit payments for 2017	220
Expected benefit payments for 2018	220
Expected benefit payments from 2019-2023	1,200
Total expected benefit payments	2,320
Other Postretirement Benefits	'
Expected cash flow for pension and other Postretirement benefit plans	'
Employer contribution expected for 2014	210
Expected benefit payments for 2014	340
Expected benefit payments for 2015	350
Expected benefit payments for 2016	350
Expected benefit payments for 2017	360
Expected benefit payments for 2018	360
Expected benefit payments from 2019-2023	1,850
Total expected benefit payments	3,610
Other postretirement benefits, Medicare Part D subsidy expected	'
Other postretirement benefits, Medicare Part D subsidy expected in 2014	20
Other postretirement benefits, Medicare Part D subsidy expected in 2015	20
Other postretirement benefits, Medicare Part D subsidy expected in 2016	20
Other postretirement benefits, Medicare Part D subsidy expected in 2017	20
Other postretirement benefits, Medicare Part D subsidy expected in 2018	20
Other postretirement benefits, Medicare Part D subsidy expected from 2019-2023	115
Total expected Medicare D subsidy receipts	$215

Postemployment_benefit_plans_D7

Postemployment benefit plans (Details 8) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
U.S. Pension Benefits	'	'	'
Components of net periodic benefit cost	'	'	'
Service cost	$196	$185	$158
Interest cost	581	609	651
Expected return on plan assets	-832	-812	-798
Other adjustments	31	0	0
Curtailments, settlements and termination benefits	0	7	0
Amortization of:	'	'	'
Transition obligation / (asset)	0	0	0
Prior service cost / (credit)	18	19	20
Net actuarial loss / (gain)	546	504	451
Total cost included in operating profit	540	512	482
Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax):	'	'	'
Current year actuarial loss (gain)	-2,344	745	2,700
Amortization of actuarial (loss) gain	-546	-504	-451
Current year prior service cost (credit)	0	-7	0
Amortization of prior service (cost) credit	-18	-19	-20
Amortization of transition (obligation) asset	0	0	0
Total recognized in other comprehensive income	-2,908	215	2,229
Total recognized in net periodic cost and other comprehensive income	-2,368	727	2,711
Weighted-average assumptions used to determine net cost:	'	'	'
Discount rate (as a percent)	3.70%	4.30%	5.10%
Expected return on plan assets (as a percent)	7.80%	8.00%	8.50%
Rate of compensation increase (as a percent)	4.50%	4.50%	4.50%
Expected return on plan assets, next fiscal year (as a percent)	7.80%	'	'
Percentage of the highest and lowest yielding bonds that were excluded from the discount rate calculation (as a percent)	10.00%	'	'
Additional percentage amount added to long-term passive rate of returns to arrive at the long-term expected rate of return (as a percent)	1.00%	1.00%	1.00%
Non-U.S. Pension Benefits	'	'	'
Components of net periodic benefit cost	'	'	'
Service cost	120	108	115
Interest cost	166	182	182
Expected return on plan assets	-225	-215	-210
Other adjustments	0	0	0
Curtailments, settlements and termination benefits	2	38	19
Amortization of:	'	'	'
Transition obligation / (asset)	0	0	0
Prior service cost / (credit)	1	1	3
Net actuarial loss / (gain)	128	97	74
Total cost included in operating profit	192	211	183
Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax):	'	'	'
Current year actuarial loss (gain)	-406	225	526
Amortization of actuarial (loss) gain	-128	-97	-72
Current year prior service cost (credit)	-7	10	-25
Amortization of prior service (cost) credit	-1	-1	-3
Amortization of transition (obligation) asset	0	0	0
Total recognized in other comprehensive income	-542	137	426
Total recognized in net periodic cost and other comprehensive income	-350	348	609
Weighted-average assumptions used to determine net cost:	'	'	'
Discount rate (as a percent)	3.70%	4.30%	4.60%
Expected return on plan assets (as a percent)	6.80%	7.10%	7.10%
Rate of compensation increase (as a percent)	3.90%	3.90%	4.10%
Expected return on plan assets, next fiscal year (as a percent)	6.90%	'	'
Other Postretirement Benefits	'	'	'
Components of net periodic benefit cost	'	'	'
Service cost	108	92	84
Interest cost	195	221	253
Expected return on plan assets	-56	-63	-70
Other adjustments	-22	0	0
Curtailments, settlements and termination benefits	0	-40	0
Amortization of:	'	'	'
Transition obligation / (asset)	2	2	2
Prior service cost / (credit)	-73	-68	-55
Net actuarial loss / (gain)	107	100	108
Total cost included in operating profit	261	244	322
Other changes in plan assets and benefit obligations recognized in other comprehensive income (pre-tax):	'	'	'
Current year actuarial loss (gain)	-759	133	408
Amortization of actuarial (loss) gain	-107	-100	-108
Current year prior service cost (credit)	2	-38	-121
Amortization of prior service (cost) credit	73	68	55
Amortization of transition (obligation) asset	-2	-2	-2
Total recognized in other comprehensive income	-793	61	232
Total recognized in net periodic cost and other comprehensive income	($532)	$305	$554
Weighted-average assumptions used to determine net cost:	'	'	'
Discount rate (as a percent)	3.70%	4.30%	5.00%
Expected return on plan assets (as a percent)	7.80%	8.00%	8.50%
Rate of compensation increase (as a percent)	4.40%	4.40%	4.40%
Assumed increase in health care trend rate	'	'	'
Assumed increase in health care trend rate over the current period to calculate benefit expenses (as a percent)	7.10%	'	'
Assumed increase in health care trend rate for the next year to calculate benefit expenses (as a percent)	6.60%	'	'
Year that heath care trend rate is assumed to reach ultimate trend rate (year)	'2019	'	'
Ultimate health care cost trend rate (as a percent)	5.00%	'	'
General inflation rate that forms a part of ultimate health care trend rate (as a percent)	3.00%	'	'
Additional healthcare inflation rate that forms a part of ultimate health care trend rate (as a percent)	2.00%	'	'

Postemployment_benefit_plans_D8

Postemployment benefit plans (Details 9) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined contribution plans	'	'	'
Costs related to defined contribution plans	$372	$320	$273
U.S. Plans	'	'	'
Defined contribution plans	'	'	'
Percentage that the employer generally matches of employee contributions to U.S. defined contribution plans	100.00%	'	'
Employee compensation percentage contributed to defined contribution plan eligible for employer matching contributions	6.00%	'	'
New annual employer contribution, percentage of compensation, low end of range	3.00%	'	'
New annual employer contribution, percentage of compensation, high end of range	5.00%	'	'
Percentage that the employer generally matches of employee contributions to U.S. defined contribution plans for employees accruing benefits under a defined benefit plan	50.00%	'	'
Compensation percentage contributed to defined contribution plan eligible for employer matching contributions, for employees accruing benefits under defined benefit pension plan	6.00%	'	'
Costs related to defined contribution plans	308	260	219
Non-U.S. Plans	'	'	'
Defined contribution plans	'	'	'
Costs related to defined contribution plans	$64	$60	$54

Postemployment_benefit_plans_D9

Postemployment benefit plans (Details 10) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Summary of long-term liability:	'	'	'
Postretirement benefits other than pensions	$3,793	$4,495	$4,396
Other postemployment benefits	99	81	73
Defined contribution	324	286	265
Liability for postemployment benefits, long term	6,973	11,085	10,956
Pension plans	'	'	'
Summary of long-term liability:	'	'	'
Pensions	2,757	6,223	6,222
U.S. Pension Benefits	'	'	'
Summary of long-term liability:	'	'	'
Pensions	2,003	4,909	4,764
Non-U.S. Pension Benefits	'	'	'
Summary of long-term liability:	'	'	'
Pensions	$754	$1,314	$1,458

Shortterm_borrowings_Details

Short-term borrowings (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Short-term borrowings:	'	'	'
Short-term borrowings	$3,679	$5,287	$3,988
Notes payable to banks	'	'	'
Short-term borrowings:	'	'	'
Weighted-average interest rates on short-term borrowings (as a percent)	6.30%	5.80%	7.20%
Commercial paper	'	'	'
Short-term borrowings:	'	'	'
Weighted-average interest rates on short-term borrowings (as a percent)	0.50%	0.60%	1.00%
Demand Notes [Member]	'	'	'
Short-term borrowings:	'	'	'
Weighted-average interest rates on short-term borrowings (as a percent)	0.80%	0.80%	0.90%
Machinery and Power Systems	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	16	636	93
Machinery and Power Systems | Notes payable to banks	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	16	484	93
Machinery and Power Systems | Notes payable to former shareholders of Siwei [Member]	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	0	152	0
Machinery and Power Systems | Commercial paper	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	0	0	0
Financial Products	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	3,663	4,651	3,895
Financial Products | Notes payable to banks	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	545	418	527
Financial Products | Commercial paper	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	2,502	3,654	2,818
Financial Products | Demand Notes [Member]	'	'	'
Short-term borrowings:	'	'	'
Short-term borrowings	$616	$579	$550

Longterm_debt_Details

Long-term debt (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Long-term Debt	'	'	'
Total Machinery And Power Systems	$7,999	$8,666	$8,415
Total Financial Products	18,720	19,086	16,529
Total long-term debt due after one year	26,719	27,752	24,944
Machinery and Power Systems	'	'	'
Long-term Debt	'	'	'
Total Machinery And Power Systems	7,999	8,666	8,415
Other	55	16	19
Machinery and Power Systems | Notes-Floating Rate (Three-month USD LIBOR plus 0.17%) due 2013	'	'	'
Long-term Debt	'	'	'
Notes	0	0	750
Debt instrument, interest rate (as a percent)	0.17%	'	'
Basis for variable interest rate	'Three-month USD LIBOR plus 0.17%	'	'
Machinery and Power Systems | Notes-1.375% due 2014	'	'	'
Long-term Debt	'	'	'
Notes	0	750	750
Debt instrument, interest rate (as a percent)	1.38%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Notes-5.700% due 2016	'	'	'
Long-term Debt	'	'	'
Notes	506	508	510
Debt instrument, interest rate (as a percent)	5.70%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Notes-3.900% due 2021	'	'	'
Long-term Debt	'	'	'
Notes	1,246	1,245	1,245
Debt instrument, interest rate (as a percent)	3.90%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Notes-5.200% due 2041	'	'	'
Long-term Debt	'	'	'
Notes	757	757	1,247
Debt instrument, interest rate (as a percent)	5.20%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-7.000% due 2013	'	'	'
Long-term Debt	'	'	'
Debentures	0	0	350
Debt instrument, interest rate (as a percent)	7.00%	'	'
Machinery and Power Systems | Debentures-0.950% due 2015	'	'	'
Long-term Debt	'	'	'
Debentures	500	500	0
Debt instrument, interest rate (as a percent)	0.95%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-1.500% due 2017	'	'	'
Long-term Debt	'	'	'
Debentures	500	499	0
Debt instrument, interest rate (as a percent)	1.50%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-7.900% due 2018	'	'	'
Long-term Debt	'	'	'
Debentures	899	899	899
Debt instrument, interest rate (as a percent)	7.90%	'	'
Machinery and Power Systems | Debentures-9.375% due 2021	'	'	'
Long-term Debt	'	'	'
Debentures	120	120	120
Debt instrument, interest rate (as a percent)	9.38%	'	'
Machinery and Power Systems | Debentures-2.600% due 2022	'	'	'
Long-term Debt	'	'	'
Debentures	498	498	0
Debt instrument, interest rate (as a percent)	2.60%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-8.000% due 2023	'	'	'
Long-term Debt	'	'	'
Debentures	82	82	82
Debt instrument, interest rate (as a percent)	8.00%	'	'
Machinery and Power Systems | Debentures-6.625% due 2028	'	'	'
Long-term Debt	'	'	'
Debentures	193	193	299
Debt instrument, interest rate (as a percent)	6.63%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-7.300% due 2031	'	'	'
Long-term Debt	'	'	'
Debentures	241	241	349
Debt instrument, interest rate (as a percent)	7.30%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-5.300% due 2035	'	'	'
Long-term Debt	'	'	'
Debentures	209	208	206
Debt instrument, interest rate (as a percent)	5.30%	'	'
Debentures, face value	307	'	'
Debentures' effective yield to maturity (as a percent)	8.69%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-6.050% due 2036	'	'	'
Long-term Debt	'	'	'
Debentures	459	459	748
Debt instrument, interest rate (as a percent)	6.05%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-8.250% due 2038	'	'	'
Long-term Debt	'	'	'
Debentures	65	65	248
Debt instrument, interest rate (as a percent)	8.25%	'	'
Machinery and Power Systems | Debentures-6.950% due 2042	'	'	'
Long-term Debt	'	'	'
Debentures	160	160	250
Debt instrument, interest rate (as a percent)	6.95%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-3.803% due 2042	'	'	'
Long-term Debt	'	'	'
Debentures	1,168	1,149	0
Debt instrument, interest rate (as a percent)	3.80%	'	'
Debentures, face value	1,722	'	'
Debentures' effective yield to maturity (as a percent)	6.33%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Debentures-7.375% due 2097	'	'	'
Long-term Debt	'	'	'
Debentures	244	244	297
Debt instrument, interest rate (as a percent)	7.38%	'	'
Percentage of the redemption price to the principal amount of debentures to be redeemed	100.00%	'	'
Machinery and Power Systems | Capital lease obligations	'	'	'
Long-term Debt	'	'	'
Capital lease obligations	97	73	46
Financial Products	'	'	'
Long-term Debt	'	'	'
Medium-term notes	17,856	18,036	15,701
Other	864	1,050	828
Total Financial Products	$18,720	$19,086	$16,529

Longterm_debt_Details_2

Long-term debt (Details 2) (USD $)

1 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Aug. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jun. 30, 2012

Jun. 30, 2012

Jun. 30, 2012

31-May-11

31-May-11

24-May-11

31-May-11

24-May-11

31-May-11

24-May-11

Dec. 31, 2013

Dec. 31, 2013

0.950% Senior Notes due in 2015

1.500% Senior Notes due in 2017

2.600% Senior Notes due 2022

Floating Rate Senior Notes due in 2013

1.375% Senior Notes due in 2014

1.375% Senior Notes due in 2014

3.90% Senior Notes due in 2021

3.90% Senior Notes due in 2021

5.20% Senior Notes due in 2041

5.20% Senior Notes due in 2041

Machinery and Power Systems

Financial Products

Long-term Debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Notes

'

'

'

'

$500

$500

$500

$750

$750

'

$1,250

'

$1,250

'

'

'

Debt instrument, interest rate (as a percent)

'

'

'

'

0.95%

1.50%

2.60%

'

'

1.38%

'

3.90%

'

5.20%

'

'

Debt exchange new debentures amount

1,720

1,722

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt exchange new debentures interest rate (as a percent)

3.80%

3.80%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt exchange cash paid

179

179

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt exchange original debentures amount

1,330

1,325

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Medium-term notes, weighted-average interest rate (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.80%

Medium-term notes, maximum remaining maturity (in years)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'12 years

2014

'

7,352

'

'

'

'

'

'

'

'

'

'

'

'

760

6,592

2015

'

6,960

'

'

'

'

'

'

'

'

'

'

'

'

514

6,446

2016

'

5,334

'

'

'

'

'

'

'

'

'

'

'

'

538

4,796

2017

'

3,254

'

'

'

'

'

'

'

'

'

'

'

'

507

2,747

2018

'

3,256

'

'

'

'

'

'

'

'

'

'

'

'

906

2,350

Interest paid on short-term and long-term borrowings

'

$1,141

$1,404

$1,208

'

'

'

'

'

'

'

'

'

'

'

'

Basis for variable interest rate

'

'

'

'

'

'

'

'Three-month USD LIBOR

'

'

'

'

'

'

'

'

Additional average spread over LIBOR (as a percent)

'

'

'

'

'

'

'

0.17%

'

'

'

'

'

'

'

'

Credit_commitments_Details

Credit commitments (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
Credit lines available:	'
Global credit facilities	10,000,000,000
Other external	4,508,000,000
Total credit lines available	14,508,000,000
Less: Commercial paper outstanding	-2,502,000,000
Less: Utilized credit	-2,044,000,000
Available credit	9,962,000,000
Number of global credit facilities	3
Consolidated net worth	25,030,000,000
Minimum consolidated net worth required under credit facilities	9,000,000,000
Cat Financial	'
Credit lines available:	'
Interest coverage ratio, numerator	1.96
Interest coverage ratio, denominator	1
Minimum interest coverage ratio required under credit facilities, numerator	1.15
Minimum interest coverage ratio required under credit facilities, denominator	1
Six-month leverage ratio, numerator	8.14
Six month leverage ratio, denominator	1
Year-end leverage ratio, numerator	7.99
Year-end leverage ratio denominator	1
Maximum leverage ratio permissible under credit facility, numerator	10
Maximum leverage ratio permissible under credit facility, denominator	1
Credit Facility	'
Credit lines available:	'
Global credit facilities	10,000,000,000
364-day facility expires in September 2014	'
Credit lines available:	'
Global credit facilities	3,000,000,000
Duration of credit facility (in years or days)	'364 days
Four-year facility expires in September 2016	'
Credit lines available:	'
Global credit facilities	2,600,000,000
Duration of credit facility (in years or days)	'4 years
Five-year facility expires in September 2018	'
Credit lines available:	'
Global credit facilities	4,400,000,000
Duration of credit facility (in years or days)	'5 years
Consolidated credit lines with banks	'
Credit lines available:	'
Other external	4,510,000,000
Machinery and Power Systems	'
Credit lines available:	'
Global credit facilities	2,750,000,000
Other external	229,000,000
Total credit lines available	2,979,000,000
Less: Commercial paper outstanding	0
Less: Utilized credit	-16,000,000
Available credit	2,963,000,000
Machinery and Power Systems | Credit Facility	'
Credit lines available:	'
Global credit facilities	2,750,000,000
Machinery and Power Systems | 364-day facility expires in September 2014	'
Credit lines available:	'
Global credit facilities	820,000,000
Machinery and Power Systems | Four-year facility expires in September 2016	'
Credit lines available:	'
Global credit facilities	720,000,000
Machinery and Power Systems | Five-year facility expires in September 2018	'
Credit lines available:	'
Global credit facilities	1,210,000,000
Financial Products	'
Credit lines available:	'
Global credit facilities	7,250,000,000
Other external	4,279,000,000
Total credit lines available	11,529,000,000
Less: Commercial paper outstanding	-2,502,000,000
Less: Utilized credit	-2,028,000,000
Available credit	6,999,000,000

Profit_per_share_Details

Profit per share (Details) (USD $)

1 Months Ended

3 Months Ended

12 Months Ended

Jan. 31, 2014

Feb. 28, 2007

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

Earnings Per Share [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

Profit for the period (A) (in millions of dollars)

'

'

$1,003,000,000

$946,000,000

$960,000,000

$880,000,000

$697,000,000

$1,699,000,000

$1,699,000,000

$1,586,000,000

$3,789,000,000

[1]

$5,681,000,000

[1]

$4,928,000,000

[1]

Weighted-average common shares outstanding (millions)

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average number of common shares outstanding (B) (in shares)

'

'

'

'

'

'

'

'

'

'

645,200,000

652,600,000

645,000,000

Shares issuable on exercise of stock awards, net of shares assumed to be purchased out of proceeds at average market price (in shares)

'

'

'

'

'

'

'

'

'

'

13,400,000

17,000,000

21,100,000

Average common shares outstanding for fully diluted computation (C) (in shares)

'

'

'

'

'

'

'

'

'

'

658,600,000

[2]

669,600,000

[2]

666,100,000

[2]

Profit (loss) per share of common stock:

'

'

'

'

'

'

'

'

'

'

'

'

'

Assuming no dilution (A/B) (in dollars per share)

'

'

$1.57

$1.48

$1.48

$1.34

$1.07

$2.60

$2.60

$2.44

$5.87

$8.71

$7.64

Assuming full dilution (A/C) (in dollars per share)

'

'

$1.54

$1.45

$1.45

$1.31

$1.04

$2.54

$2.54

$2.37

$5.75

[2]

$8.48

[2]

$7.40

[2]

Shares outstanding as of December 31

'

'

637,800,000

'

'

'

655,000,000

'

'

'

637,800,000

655,000,000

647,500,000

Common shares under SARs and stock options not included in the computation of diluted earnings per share (in shares)

'

'

'

'

'

'

'

'

'

'

10,152,448

6,066,777

2,902,533

Common Stock Repurchase [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Repurchase Program, Authorized Amount

10,000,000,000

7,500,000,000

'

'

'

'

'

'

'

'

'

'

'

Common shares repurchased (in shares)

17,719,132

'

'

11,942,737

11,542,106

'

'

'

'

'

23,484,843

0

0

Payments for repurchase of common stock

$1,700,000,000

'

'

$1,000,000,000

$1,000,000,000

'

'

'

'

'

$2,000,000,000

$0

$0

[1]

1 Profit attributable to common stockholders.

[2]

2 Diluted by assumed exercise of stock-based compensation awards, using the treasury stock method.

Accumulated_other_comprehensiv2

Accumulated other comprehensive income (loss) (Details) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Dec. 31, 2013	Dec. 31, 2012		Apr. 02, 2012	Dec. 31, 2011	Aug. 01, 2008
Accumulated other comprehensive income (loss), end of period	'	($3,898)	($6,433)	[1]	'	($6,328)	'
Other comprehensive income (loss), before reclassifications	'	2,025	'		'	'	'
Amounts reclassified from accumulated other comprehensive (income) loss	'	510	'		'	'	'
Other comprehensive income (loss)	'	2,535	'		'	'	'
Noncontrolling Interest, Ownership Percentage by Parent	'	'	'		100.00%	'	67.00%
Noncontrolling interest share redemption reclassified to Accumulated other comprehensive income (loss)	107	'	'		'	'	'
Foreign currency translation reclassified to Accumulated other comprehensive income (loss)	167	'	'		'	'	'
Pension and other postretirement benefits reclassified to Accumulated other comprehensive income (loss)	-61	'	'		'	'	'
Available for sale securities reclassified to Accumulated other comprehensive income (loss)	1	'	'		'	'	'
Foreign currency translation	'	'	'		'	'	'
Accumulated other comprehensive income (loss), end of period	'	176	456	[1]	'	206	'
Other comprehensive income (loss), before reclassifications	'	-280	'		'	'	'
Amounts reclassified from accumulated other comprehensive (income) loss	'	0	'		'	'	'
Other comprehensive income (loss)	'	-280	'		'	'	'
Pension and other postretirement benefits	'	'	'		'	'	'
Accumulated other comprehensive income (loss), end of period	'	-4,152	-6,914	[1]	'	-6,568	'
Other comprehensive income (loss), before reclassifications	'	2,280	'		'	'	'
Amounts reclassified from accumulated other comprehensive (income) loss	'	482	'		'	'	'
Other comprehensive income (loss)	'	2,762	'		'	'	'
Derivative financial instruments	'	'	'		'	'	'
Accumulated other comprehensive income (loss), end of period	'	-5	-42	[1]	'	-10	'
Other comprehensive income (loss), before reclassifications	'	-4	'		'	'	'
Amounts reclassified from accumulated other comprehensive (income) loss	'	41	'		'	'	'
Other comprehensive income (loss)	'	37	'		'	'	'
Available-for-sale securities	'	'	'		'	'	'
Accumulated other comprehensive income (loss), end of period	'	83	67	[1]	'	44	'
Other comprehensive income (loss), before reclassifications	'	29	'		'	'	'
Amounts reclassified from accumulated other comprehensive (income) loss	'	-13	'		'	'	'
Other comprehensive income (loss)	'	$16	'		'	'	'
[1]	In conjunction with the Cat Japan share redemption, to reflect the increase in our ownership interest in Cat Japan from 67 percent to 100 percent, $107 million was reclassified to Accumulated other comprehensive income (loss) from other components of stockholders' equity and was not included in Comprehensive income during the second quarter of 2012. The amount was comprised of foreign currency translation of $167 million, pension and other postretirement benefits of $(61) million and available-for-sale securities of $1 million

Accumulated_other_comprehensiv3

Accumulated other comprehensive income (loss) (Details 2) (USD $)

3 Months Ended

12 Months Ended

In Millions, 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

Other income (expense)

'

'

'

'

'

'

'

'

($35)

$130

($32)

Interest expense of Financial Products

'

'

'

'

'

'

'

'

-727

-797

-826

Tax (provision) benefit

'

'

'

'

'

'

'

'

-1,319

-2,528

-1,720

Reclassifications net of tax

1,003

946

960

880

697

1,699

1,699

1,586

3,789

[1]

5,681

[1]

4,928

[1]

Reclassification out of Accumulated Other Comprehensive Income

'

'

'

'

'

'

'

'

'

'

'

Reclassifications net of tax

'

'

'

'

'

'

'

'

-510

'

'

Reclassification out of Accumulated Other Comprehensive Income | Pension and other postretirement benefits

'

'

'

'

'

'

'

'

'

'

'

Amortization of actuarial gain (loss)

'

'

'

'

'

'

'

'

-781

'

'

Amortization of prior service credit (cost)

'

'

'

'

'

'

'

'

54

'

'

Amortization of transition asset (obligation)

'

'

'

'

'

'

'

'

-2

'

'

Reclassifications before tax

'

'

'

'

'

'

'

'

-729

'

'

Tax (provision) benefit

'

'

'

'

'

'

'

'

247

'

'

Reclassifications net of tax

'

'

'

'

'

'

'

'

-482

'

'

Reclassification out of Accumulated Other Comprehensive Income | Derivative financial instruments

'

'

'

'

'

'

'

'

'

'

'

Reclassifications before tax

'

'

'

'

'

'

'

'

-66

'

'

Tax (provision) benefit

'

'

'

'

'

'

'

'

25

'

'

Reclassifications net of tax

'

'

'

'

'

'

'

'

-41

'

'

Reclassification out of Accumulated Other Comprehensive Income | Derivative financial instruments | Foreign exchange contracts

'

'

'

'

'

'

'

'

'

'

'

Other income (expense)

'

'

'

'

'

'

'

'

-57

'

'

Reclassification out of Accumulated Other Comprehensive Income | Derivative financial instruments | Interest rate contracts | Machinery and Power Systems

'

'

'

'

'

'

'

'

'

'

'

Other income (expense)

'

'

'

'

'

'

'

'

-3

'

'

Reclassification out of Accumulated Other Comprehensive Income | Derivative financial instruments | Interest rate contracts | Financial Products

'

'

'

'

'

'

'

'

'

'

'

Interest expense of Financial Products

'

'

'

'

'

'

'

'

-6

'

'

Reclassification out of Accumulated Other Comprehensive Income | Available-for-sale securities

'

'

'

'

'

'

'

'

'

'

'

Other income (expense)

'

'

'

'

'

'

'

'

19

'

'

Tax (provision) benefit

'

'

'

'

'

'

'

'

-6

'

'

Reclassifications net of tax

'

'

'

'

'

'

'

'

$13

'

'

[1]

1 Profit attributable to common stockholders.

Fair_value_disclosures_Details

Fair value disclosures (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Assets	'	'	'
Available-for-sale securities	$1,570	$1,586	$1,447
Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	1,570	1,586	1,447
Derivative financial instruments, net	161	154	145
Total Assets	1,731	1,740	1,592
Liabilities	'	'	'
Guarantees	13	14	7
Total Liabilities	13	14	7
U.S. treasury bonds	'	'	'
Assets	'	'	'
Available-for-sale securities	10	10	10
U.S. treasury bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	10	10	10
Other U.S. and non-U.S. government bonds	'	'	'
Assets	'	'	'
Available-for-sale securities	120	146	92
Other U.S. and non-U.S. government bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	120	146	92
Corporate bonds	'	'	'
Assets	'	'	'
Available-for-sale securities	633	664	572
Corporate bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	633	664	572
Asset-backed securities	'	'	'
Assets	'	'	'
Available-for-sale securities	72	96	111
Asset-backed securities | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	72	96	111
U.S. governmental agency | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	321	299	310
Residential	'	'	'
Assets	'	'	'
Available-for-sale securities	18	25	30
Residential | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	18	25	30
Commercial	'	'	'
Assets	'	'	'
Available-for-sale securities	93	127	145
Commercial | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	93	127	145
Large capitalization value	'	'	'
Assets	'	'	'
Available-for-sale securities	254	185	148
Large capitalization value | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	254	185	148
Smaller company growth	'	'	'
Assets	'	'	'
Available-for-sale securities	49	34	29
Smaller company growth | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	49	34	29
Level 1 | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	313	229	187
Derivative financial instruments, net	0	0	0
Total Assets	313	229	187
Liabilities	'	'	'
Guarantees	0	0	0
Total Liabilities	0	0	0
Level 1 | U.S. treasury bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	10	10	10
Level 1 | Other U.S. and non-U.S. government bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | Corporate bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | Asset-backed securities | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | U.S. governmental agency | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | Residential | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | Commercial | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 1 | Large capitalization value | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	254	185	148
Level 1 | Smaller company growth | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	49	34	29
Level 2 | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	1,257	1,357	1,260
Derivative financial instruments, net	161	154	145
Total Assets	1,418	1,511	1,405
Liabilities	'	'	'
Guarantees	0	0	0
Total Liabilities	0	0	0
Level 2 | U.S. treasury bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 2 | Other U.S. and non-U.S. government bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	120	146	92
Level 2 | Corporate bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	633	664	572
Level 2 | Asset-backed securities | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	72	96	111
Level 2 | U.S. governmental agency | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	321	299	310
Level 2 | Residential | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	18	25	30
Level 2 | Commercial | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	93	127	145
Level 2 | Large capitalization value | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 2 | Smaller company growth | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Derivative financial instruments, net	0	0	0
Total Assets	0	0	0
Liabilities	'	'	'
Guarantees	13	14	7
Total Liabilities	13	14	7
Level 3 | U.S. treasury bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Other U.S. and non-U.S. government bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Corporate bonds | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Asset-backed securities | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | U.S. governmental agency | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Residential | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Commercial | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Large capitalization value | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	0	0	0
Level 3 | Smaller company growth | Recurring basis	'	'	'
Assets	'	'	'
Available-for-sale securities	$0	$0	$0

Fair_value_disclosures_Details1

Fair value disclosures (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Level 2 | Financial Products | Nonrecurring basis	'	'	'
Fair value of impaired loans	'	'	'
Impaired loans	$81	$117	$96
Level 3 | Guarantees | Recurring basis	'	'	'
Roll-forward of liabilities measured at fair value using Level 3 inputs	'	'	'
Balance at beginning of year	14	7	10
Acquisitions	'	6	'
Issuance of guarantees	6	7	4
Expiration of guarantees	-7	-6	-7
Balance at end of year	$13	$14	$7

Fair_value_disclosures_Details2

Fair value disclosures (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified
Assets	'	'	'	'
Cash and short-term investments	$6,081	$5,490	$3,057	$3,592
Available-for-sale securities	1,570	1,586	1,447	'
Liabilities	'	'	'	'
Short-term borrowings	3,679	5,287	3,988	'
Machinery and Power Systems	'	'	'	'
Liabilities	'	'	'	'
Short-term borrowings	16	636	93	'
Financial Products	'	'	'	'
Liabilities	'	'	'	'
Short-term borrowings	3,663	4,651	3,895	'
Carrying Amount	'	'	'	'
Assets	'	'	'	'
Cash and short-term investments	6,081	5,490	3,057	'
Restricted cash and short-term investments	53	53	87	'
Available-for-sale securities	1,570	1,586	1,447	'
Finance receivables-net (excluding finance leases)	16,049	15,404	12,689	'
Wholesale inventory receivables-net (excluding finance leases)	1,529	1,674	1,591	'
Foreign currency contracts-net	45	0	0	'
Interest rate swaps-net	116	219	241	'
Commodity contracts-net	0	1	0	'
Liabilities	'	'	'	'
Short-term borrowings	3,679	5,287	3,988	'
Foreign currency contracts-net	0	66	89	'
Commodity contracts-net	0	0	7	'
Guarantees	13	14	7	'
Carrying Amount | Machinery and Power Systems	'	'	'	'
Liabilities	'	'	'	'
Long-term debt (including amounts due within one year)	8,759	9,779	8,973	'
Carrying Amount | Financial Products	'	'	'	'
Liabilities	'	'	'	'
Long-term debt (including amounts due within one year)	25,312	25,077	21,631	'
Carrying amount of assets excluded from measurement at fair value	'	'	'	'
Assets	'	'	'	'
Finance leases	8,053	7,959	7,324	'
Level 1 | Fair Value	'	'	'	'
Assets	'	'	'	'
Cash and short-term investments	6,081	5,490	3,057	'
Restricted cash and short-term investments	53	53	87	'
Liabilities	'	'	'	'
Short-term borrowings	3,679	5,287	3,988	'
Level 1 & 2 | Fair Value	'	'	'	'
Assets	'	'	'	'
Available-for-sale securities	1,570	1,586	1,447	'
Level 2 | Fair Value	'	'	'	'
Assets	'	'	'	'
Finance receivables-net (excluding finance leases)	15,913	15,359	12,516	'
Wholesale inventory receivables-net (excluding finance leases)	1,467	1,609	1,505	'
Foreign currency contracts-net	45	0	0	'
Interest rate swaps-net	116	219	241	'
Commodity contracts-net	0	1	0	'
Liabilities	'	'	'	'
Foreign currency contracts-net	0	66	89	'
Commodity contracts-net	0	0	7	'
Level 2 | Fair Value | Machinery and Power Systems	'	'	'	'
Liabilities	'	'	'	'
Long-term debt (including amounts due within one year)	9,905	11,969	10,737	'
Level 2 | Fair Value | Financial Products	'	'	'	'
Liabilities	'	'	'	'
Long-term debt (including amounts due within one year)	25,849	26,063	22,674	'
Level 3 | Fair Value	'	'	'	'
Liabilities	'	'	'	'
Guarantees	$13	$14	$7	'

Concentration_of_credit_risk_D

Concentration of credit risk (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Risks and Uncertainties [Abstract]	'	'	'
Derivative contracts, maximum exposure to credit loss	$251	$366	$443

Operating_leases_Details

Operating leases (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]	'	'	'
Rental expense for operating leases	$436	$474	$429
Minimum payments for operating leases having initial or remaining non-cancelable terms	'	'	'
2014	244	'	'
2015	180	'	'
2016	133	'	'
2017	99	'	'
2018	74	'	'
Thereafter	229	'	'
Total	$959	'	'

Guarantees_and_product_warrant2

Guarantees and product warranty (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Jul. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Commitments and Contingencies Disclosure [Abstract]	'	'	'	'
Related liability	$13	$14	'	$7
Guarantor Obligations	'	'	'	'
Percentage of equity interest sold in subsidiary (as a percent)	'	'	65.00%	'
Guarantees, maximum potential amount of future payments	805	486	'	275
Financial Special-Purpose Company's assets in Consolidated Statement of Financial Position	1,005	927	'	586
Financial Special-Purpose Company's liabilities in Consolidated Statement of Financial Position	1,005	927	'	586
Unused commitments and lines of credit for dealers	10,503	10,863	'	6,469
Unused commitments and lines of credit for customers	4,635	4,690	'	2,785
Caterpillar dealer guarantees	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	193	180	'	140
Customer guarantees	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	62	77	'	96
Customer guarantees-supplier consortium	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	364	0	'	0
Third party logistics business	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	151	176	'	0
Limited indemnity	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	0	0	'	11
Other guarantees	'	'	'	'
Guarantor Obligations	'	'	'	'
Guarantees, maximum potential amount of future payments	$35	$53	'	$28

Guarantees_and_product_warrant3

Guarantees and product warranty (Details 2) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Movement in Standard Product Warranty Accrual	'	'	'
Warranty liability, beginning balance	$1,477	$1,308	$1,035
Reduction in liability (payments)	-938	-920	-926
Increase in liability (new warranties)	828	1,089	1,199
Warranty liability, ending balance	$1,367	$1,477	$1,308

Environmental_and_legal_matter1

Environmental and legal matters (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Environmental Remediation Obligations [Abstract]	'
Gain from settlement with third party insurance company	$68

Segment_information_Details

Segment information (Details) (USD $)	3 Months Ended								12 Months Ended
In Millions, 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
									group_presidents
									segments
Segment Reporting Information	'	'	'	'	'	'	'	'	'	'	'
Number of group presidents	'	'	'	'	'	'	'	'	5	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Number of operating segments led by Group Presidents	'	'	'	'	'	'	'	'	3	'	'
Number of operating segments led by Group president responsible for corporate services	'	'	'	'	'	'	'	'	1	'	'
Number of smaller operating segments led by Group President	'	'	'	'	'	'	'	'	1	'	'
Number of operating segments	'	'	'	'	'	'	'	'	5	'	'
Number of reportable segments	'	'	'	'	'	'	'	'	4	'	'
Useful life to amortize goodwill for segment assets	'	'	'	'	'	'	'	'	'20 years	'	'
Sales and revenues	$14,402	$13,423	$14,621	$13,210	$16,075	$16,445	$17,374	$15,981	$55,656	$65,875	$60,138
Depreciation and amortization	'	'	'	'	'	'	'	'	3,087	2,813	2,527
Consolidated profit before taxes	'	'	'	'	'	'	'	'	5,128	8,236	6,725
Segment assets	84,896	'	'	'	88,970	'	'	'	84,896	88,970	81,218
Capital expenditures	'	'	'	'	'	'	'	'	4,446	5,076	3,924
Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	58,196	68,698	62,489
Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	55,094	64,704	58,413
Depreciation and amortization	'	'	'	'	'	'	'	'	2,765	2,571	2,243
Consolidated profit before taxes	'	'	'	'	'	'	'	'	7,328	10,304	9,030
Segment assets	65,102	'	'	'	69,734	'	'	'	65,102	69,734	60,729
Capital expenditures	'	'	'	'	'	'	'	'	3,667	4,808	3,657
Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,102	3,994	4,076
Machinery and Power Systems | Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	54,972	65,608	59,486
Machinery and Power Systems | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	51,870	61,614	55,410
Depreciation and amortization	'	'	'	'	'	'	'	'	1,976	1,863	1,533
Consolidated profit before taxes	'	'	'	'	'	'	'	'	6,338	9,541	8,443
Segment assets	28,122	'	'	'	33,171	'	'	'	28,122	33,171	28,982
Capital expenditures	'	'	'	'	'	'	'	'	1,861	3,148	2,466
Machinery and Power Systems | Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,102	3,994	4,076
Construction Industries | Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	18,781	19,804	20,242
Construction Industries | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	18,445	19,334	19,667
Depreciation and amortization	'	'	'	'	'	'	'	'	576	565	526
Consolidated profit before taxes	'	'	'	'	'	'	'	'	1,363	1,789	2,056
Segment assets	8,429	'	'	'	10,393	'	'	'	8,429	10,393	7,942
Capital expenditures	'	'	'	'	'	'	'	'	645	1,045	915
Construction Industries | Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	336	470	575
Resource Industries | Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	14,141	22,275	16,791
Resource Industries | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	13,270	21,158	15,629
Depreciation and amortization	'	'	'	'	'	'	'	'	758	694	463
Consolidated profit before taxes	'	'	'	'	'	'	'	'	1,575	4,318	3,334
Segment assets	11,201	'	'	'	13,455	'	'	'	11,201	13,455	12,292
Capital expenditures	'	'	'	'	'	'	'	'	539	1,143	717
Resource Industries | Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	871	1,117	1,162
Power Systems | Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	22,050	23,529	22,453
Power Systems | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	20,155	21,122	20,114
Depreciation and amortization	'	'	'	'	'	'	'	'	642	604	544
Consolidated profit before taxes	'	'	'	'	'	'	'	'	3,400	3,434	3,053
Segment assets	8,492	'	'	'	9,323	'	'	'	8,492	9,323	8,748
Capital expenditures	'	'	'	'	'	'	'	'	677	960	834
Power Systems | Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	1,895	2,407	2,339
Financial Products Segment | Reportable Segments Including Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,224	3,090	3,003
Financial Products Segment | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,224	3,090	3,003
Depreciation and amortization	'	'	'	'	'	'	'	'	789	708	710
Consolidated profit before taxes	'	'	'	'	'	'	'	'	990	763	587
Segment assets	36,980	'	'	'	36,563	'	'	'	36,980	36,563	31,747
Capital expenditures	'	'	'	'	'	'	'	'	1,806	1,660	1,191
Financial Products Segment | Intersegment Eliminations	'	'	'	'	'	'	'	'	'	'	'
Reportable Segments	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	$0	$0	$0

Segment_information_Details_2

Segment information (Details 2) (USD $)	3 Months Ended								12 Months Ended
In Millions, 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
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	$14,402	$13,423	$14,621	$13,210	$16,075	$16,445	$17,374	$15,981	$55,656	$65,875	$60,138
Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	55,094	64,704	58,413
All Other operating segment	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	886	1,501	2,021
Other	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	-324	-330	-296
Consolidating Adjustments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	-340	-353	-311
Consolidating Adjustments | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	0	0	0
Consolidating Adjustments | All Other operating segment	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	0	0	0
Consolidating Adjustments | Other	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	-340	-353	-311
Machinery and Power Systems | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	51,870	61,614	55,410
Machinery and Power Systems | Business	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	52,694	63,068	57,392
Machinery and Power Systems | Business | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	51,870	61,614	55,410
Machinery and Power Systems | Business | All Other operating segment	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	886	1,501	2,021
Machinery and Power Systems | Business | Other	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	-62	-47	-39
Financial Products | Business	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,302	3,160	3,057
Financial Products | Business | Reportable segments	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	3,224	3,090	3,003
Financial Products | Business | All Other operating segment	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	0	0	0
Financial Products | Business | Other	'	'	'	'	'	'	'	'	'	'	'
Reconciliation of Sales and revenues	'	'	'	'	'	'	'	'	'	'	'
Sales and revenues	'	'	'	'	'	'	'	'	$78	$70	$54

Segment_information_Details_3

Segment information (Details 3) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	$5,128	$8,236	$6,725
Reportable segments	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	7,328	10,304	9,030
All Other operating segment	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	663	1,014	837
Cost Centers	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	119	17	14
Corporate Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-1,442	-1,517	-1,174
Timing	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	89	-298	-203
Inventory/cost of sales	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-112	43	21
Postretirement Benefits Expense	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-685	-696	-670
Financing Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-469	-474	-408
Equity in Profit/Loss of Unconsolidated Affiliated Companies	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	6	-14	24
Currency	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-110	108	-315
Interest rate swaps	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-1	2	-149
Other Income Expense Methodology Differences	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-238	-251	-273
Other	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-20	-2	-9
Machinery and Power Systems | Reportable segments	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	6,338	9,541	8,443
Machinery and Power Systems | Business	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	4,108	7,456	6,105
Machinery and Power Systems | Business | Reportable segments	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	6,338	9,541	8,443
Machinery and Power Systems | Business | All Other operating segment	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	663	1,014	837
Machinery and Power Systems | Business | Cost Centers	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	119	17	14
Machinery and Power Systems | Business | Corporate Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-1,442	-1,517	-1,174
Machinery and Power Systems | Business | Timing	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	89	-298	-203
Machinery and Power Systems | Business | Inventory/cost of sales	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-112	43	21
Machinery and Power Systems | Business | Postretirement Benefits Expense	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-685	-696	-670
Machinery and Power Systems | Business | Financing Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-469	-474	-408
Machinery and Power Systems | Business | Equity in Profit/Loss of Unconsolidated Affiliated Companies	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	6	-14	24
Machinery and Power Systems | Business | Currency	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-110	108	-315
Machinery and Power Systems | Business | Interest rate swaps	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-1	2	-149
Machinery and Power Systems | Business | Other Income Expense Methodology Differences	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-238	-251	-273
Machinery and Power Systems | Business | Other	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	-50	-19	-42
Financial Products | Business	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	1,020	780	620
Financial Products | Business | Reportable segments	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	990	763	587
Financial Products | Business | All Other operating segment	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Cost Centers	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Corporate Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Timing	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Inventory/cost of sales	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Postretirement Benefits Expense	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Financing Costs	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Equity in Profit/Loss of Unconsolidated Affiliated Companies	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Currency	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Interest rate swaps	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Other Income Expense Methodology Differences	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	0	0	0
Financial Products | Business | Other	'	'	'
Reconciliation of Consolidated profit (loss) before taxes	'	'	'
Consolidated profit before taxes	$30	$17	$33

Segment_information_Details_4

Segment information (Details 4) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	$84,896	$88,970	$81,218
Reportable segments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	65,102	69,734	60,729
All Other operating segment	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	1,431	1,499	2,035
Cash and Short Term Investments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	4,597	3,306	1,829
Intercompany Receivables	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Investment in Financial Products	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Deferred Income Taxes	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	2,016	3,410	3,576
Goodwill and Intangible Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	3,582	3,145	2,816
Property Plant and Equipment-Net and Other Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	1,091	668	1,645
Operating Lease Methodology Difference	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-290	-329	-511
Liabilities Included in Segment Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	10,372	10,907	11,860
Inventory Methodology Differences	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-2,539	-2,949	-2,786
Other	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-466	-421	25
Consolidating Adjustments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-6,653	-5,384	-4,786
Consolidating Adjustments | Reportable segments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | All Other operating segment	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Cash and Short Term Investments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Intercompany Receivables	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-1,219	-303	-75
Consolidating Adjustments | Investment in Financial Products	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-4,798	-4,433	-4,035
Consolidating Adjustments | Deferred Income Taxes	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-525	-516	-533
Consolidating Adjustments | Goodwill and Intangible Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Property Plant and Equipment-Net and Other Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Operating Lease Methodology Difference	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Liabilities Included in Segment Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Inventory Methodology Differences	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Consolidating Adjustments | Other	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-111	-132	-143
Machinery and Power Systems | Reportable segments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	28,122	33,171	28,982
Machinery and Power Systems | Business	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	54,704	57,898	54,451
Machinery and Power Systems | Business | Reportable segments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	28,122	33,171	28,982
Machinery and Power Systems | Business | All Other operating segment	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	1,431	1,499	2,035
Machinery and Power Systems | Business | Cash and Short Term Investments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	4,597	3,306	1,829
Machinery and Power Systems | Business | Intercompany Receivables	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	1,219	303	75
Machinery and Power Systems | Business | Investment in Financial Products	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	4,798	4,433	4,035
Machinery and Power Systems | Business | Deferred Income Taxes	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	2,541	3,926	4,109
Machinery and Power Systems | Business | Goodwill and Intangible Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	3,582	3,145	2,816
Machinery and Power Systems | Business | Property Plant and Equipment-Net and Other Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	1,091	668	1,645
Machinery and Power Systems | Business | Operating Lease Methodology Difference	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-290	-329	-511
Machinery and Power Systems | Business | Liabilities Included in Segment Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	10,372	10,907	11,860
Machinery and Power Systems | Business | Inventory Methodology Differences	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-2,539	-2,949	-2,786
Machinery and Power Systems | Business | Other	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	-220	-182	362
Financial Products | Business	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	36,845	36,456	31,553
Financial Products | Business | Reportable segments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	36,980	36,563	31,747
Financial Products | Business | All Other operating segment	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Cash and Short Term Investments	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Intercompany Receivables	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Investment in Financial Products	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Deferred Income Taxes	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Goodwill and Intangible Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Property Plant and Equipment-Net and Other Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Operating Lease Methodology Difference	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Liabilities Included in Segment Assets	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Inventory Methodology Differences	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	0	0	0
Financial Products | Business | Other	'	'	'
Segment Reporting Asset Reconciling Item	'	'	'
Total assets	($135)	($107)	($194)

Segment_information_Details_5

Segment information (Details 5) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	$3,087	$2,813	$2,527
Reportable segments	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	2,765	2,571	2,243
All Other operating segment	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	173	168	172
Cost Centers	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	140	89	77
Other	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	9	-15	35
Machinery and Power Systems | Reportable segments	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	1,976	1,863	1,533
Machinery and Power Systems | Business	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	2,273	2,082	1,802
Machinery and Power Systems | Business | Reportable segments	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	1,976	1,863	1,533
Machinery and Power Systems | Business | All Other operating segment	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	173	168	172
Machinery and Power Systems | Business | Cost Centers	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	140	89	77
Machinery and Power Systems | Business | Other	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	-16	-38	20
Financial Products | Business	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	814	731	725
Financial Products | Business | Reportable segments	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	789	708	710
Financial Products | Business | All Other operating segment	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	0	0	0
Financial Products | Business | Cost Centers	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	0	0	0
Financial Products | Business | Other	'	'	'
Reconciliation of Depreciation and amortization:	'	'	'
Total depreciation and amortization	$25	$23	$15

Segment_information_Details_6

Segment information (Details 6) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	$4,446	$5,076	$3,924
Reportable segments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	3,667	4,808	3,657
All Other operating segment	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	340	359	343
Cost Centers	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	169	175	146
Timing	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	363	-71	-211
Other	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	-93	-195	-11
Consolidating Adjustments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	-70	-155	-76
Consolidating Adjustments | Reportable segments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Consolidating Adjustments | All Other operating segment	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Consolidating Adjustments | Cost Centers	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Consolidating Adjustments | Timing	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Consolidating Adjustments | Other	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	-70	-155	-76
Machinery and Power Systems | Reportable segments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	1,861	3,148	2,466
Machinery and Power Systems | Business	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	2,605	3,435	2,646
Machinery and Power Systems | Business | Reportable segments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	1,861	3,148	2,466
Machinery and Power Systems | Business | All Other operating segment	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	340	359	343
Machinery and Power Systems | Business | Cost Centers	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	169	175	146
Machinery and Power Systems | Business | Timing	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	363	-71	-211
Machinery and Power Systems | Business | Other	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	-128	-176	-98
Financial Products | Business	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	1,911	1,796	1,354
Financial Products | Business | Reportable segments	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	1,806	1,660	1,191
Financial Products | Business | All Other operating segment	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Financial Products | Business | Cost Centers	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Financial Products | Business | Timing	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	0	0	0
Financial Products | Business | Other	'	'	'
Reconciliation of Capital expenditures	'	'	'
Total capital expenditures	$105	$136	$163

Segment_information_Details_7

Segment information (Details 7) (USD $)	3 Months Ended								12 Months Ended
In Millions, 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
Segment Reporting Information	'	'	'	'	'	'	'	'	'	'	'
Percentage of sales and revenues	'	'	'	'	10.00%	'	'	'	'	10.00%	'
External sales and revenues	$14,402	$13,423	$14,621	$13,210	$16,075	$16,445	$17,374	$15,981	$55,656	$65,875	$60,138
Net property, plant and equipment	17,075	'	'	'	16,461	'	'	'	17,075	16,461	14,395
Inside United States	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information	'	'	'	'	'	'	'	'	'	'	'
External sales and revenues	'	'	'	'	'	'	'	'	18,579	20,239	17,980
Net property, plant and equipment	8,723	'	'	'	8,559	'	'	'	8,723	8,559	7,448
Outside the United States	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information	'	'	'	'	'	'	'	'	'	'	'
External sales and revenues	'	'	'	'	'	'	'	'	37,077	45,636	42,158
Net property, plant and equipment	8,352	'	'	'	7,902	'	'	'	8,352	7,902	6,947
Australia	'	'	'	'	'	'	'	'	'	'	'
Segment Reporting Information	'	'	'	'	'	'	'	'	'	'	'
External sales and revenues	'	'	'	'	'	'	'	'	'	$6,822	'

Acquisitions_Details

Acquisitions (Details)

3 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

3 Months Ended

3 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

1 Months Ended

1 Months Ended

1 Months Ended

Share data in Billions, except Per Share data, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

31-May-11

31-May-11

24-May-11

31-May-11

24-May-11

31-May-11

24-May-11

Sep. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

31-May-13

31-May-12

Dec. 31, 2012

Oct. 31, 2012

31-May-12

31-May-12

Mar. 31, 2013

Sep. 30, 2012

Mar. 31, 2012

Oct. 31, 2011

Oct. 31, 2011

Dec. 31, 2012

Oct. 31, 2011

Aug. 31, 2011

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2011

Jul. 08, 2011

Jul. 08, 2011

Jul. 08, 2011

31-May-11

31-May-11

31-May-11

31-May-11

24-May-11

31-May-11

24-May-11

31-May-11

24-May-11

31-May-11

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Floating Rate Senior Notes due in 2013

1.375% Senior Notes due in 2014

1.375% Senior Notes due in 2014

3.90% Senior Notes due in 2021

3.90% Senior Notes due in 2021

5.20% Senior Notes due in 2041

5.20% Senior Notes due in 2041

Johan Walter Berg AB

Johan Walter Berg AB

Black Horse LLC

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

ERA Mining Machinery Limited (Siwei)

Caterpillar Tohoku Ltd.

Caterpillar Tohoku Ltd.

Caterpillar Tohoku Ltd.

MWM Holding GmbH

MWM Holding GmbH

MWM Holding GmbH

MWM Holding GmbH

Pyroban Group Limited

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Balfour Beatty's Trackwork Business

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

USD ($)

USD ($)

USD ($)

USD ($)

Cash Consideration

Loan note consideration

USD ($)

USD ($)

USD ($)

USD ($)

EUR (€)

USD ($)

Final

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

Initial

Final

Long-term debt

Floating Rate Senior Notes due in 2012

Floating Rate Senior Notes due in 2013

1.375% Senior Notes due in 2014

1.375% Senior Notes due in 2014

3.90% Senior Notes due in 2021

3.90% Senior Notes due in 2021

5.20% Senior Notes due in 2041

5.20% Senior Notes due in 2041

USD ($)

director

types

HKD

HKD

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

USD ($)

parties

Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of equity acquired (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

100.00%

'

'

99.00%

'

1.00%

'

'

'

'

100.00%

100.00%

100.00%

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100.00%

Purchase price of acquired entity

'

'

'

'

'

'

'

'

'

'

'

'

$166,000,000

'

'

'

$677,000,000

'

'

'

'

'

'

$206,000,000

$774,000,000

€ 574,000,000

'

'

$69,000,000

'

'

'

'

$8,800,000,000

'

'

'

'

'

'

'

'

'

'

'

$60,000,000

Contingent consideration payable

'

'

'

'

'

'

'

'

'

'

'

'

7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration arrangement, maximum value (in Euro)

'

'

'

'

'

'

'

'

'

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contribution for equity interest in joint venture

'

'

'

'

'

'

'

'

'

'

'

'

'

'

70,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ownership percentage of investments in companies accounted for under the equity method (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost of acquisition paid in cash

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

475,000,000

7,000,000

'

'

'

3,000,000

22,000,000

59,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net cash paid for acquisition

'

195,000,000

618,000,000

8,184,000,000

'

'

'

'

'

'

'

'

'

'

'

'

444,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of loan notes debt component

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

152,000,000

152,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Loan and interest payable to Caterpillar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

51,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value of noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trade payables to Caterpillar

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

64,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase price of outstanding shares of common stock acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7,400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Price per share of common stock acquired (in dollars per share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.88

1

'

'

'

'

'

'

'

'

'

'

'

'

$92

'

'

'

'

'

'

'

'

'

'

'

'

Debt issued to fund acquisition

'

'

'

'

'

750,000,000

750,000,000

'

1,250,000,000

'

1,250,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4,500,000,000

500,000,000

750,000,000

750,000,000

'

1,250,000,000

'

1,250,000,000

'

'

Basis for variable interest rate

'

'

'

'

'

'Three-month USD LIBOR

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Three-month USD LIBOR

'Three-month USD LIBOR

'

'

'

'

'

'

'

Additional average spread over LIBOR (as a percent)

'

'

'

'

'

0.17%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.10%

0.17%

'

'

'

'

'

'

'

Debt instrument, interest rate (as a percent)

'

'

'

'

'

'

'

1.38%

'

3.90%

'

5.20%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.38%

'

3.90%

'

5.20%

'

Costs related to acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

373,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition, Alternative considerations to acquiree

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of consideration alternatives

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Value of consideration to be paid (in HKD/share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.88

1

'

'

'

'

'

'

'

'

'

'

'

'

$92

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration arrangement, minimum value (in HKD/share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.75

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration arrangement, maximum value (in HKD/share)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.15

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares tendered (in billions of shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4

1.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Tangible assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

82,000,000

'

'

'

598,000,000

'

'

'

'

'

'

252,000,000

535,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

82,000,000

Cash

'

'

'

'

'

'

'

'

'

'

'

'

9,000,000

'

'

'

31,000,000

'

'

'

'

'

'

18,000,000

94,000,000

'

'

'

'

'

'

'

'

200,000,000

203,000,000

204,000,000

'

'

'

'

'

'

'

'

'

'

Restricted cash

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

138,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Receivables

'

'

'

'

'

'

'

'

'

'

'

'

13,000,000

'

'

'

184,000,000

'

'

'

'

'

'

34,000,000

96,000,000

'

'

'

'

'

'

'

'

'

693,000,000

705,000,000

'

'

'

'

'

'

'

'

'

18,000,000

Prepaid expenses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

154,000,000

174,000,000

'

'

'

'

'

'

'

'

'

'

Inventory

'

'

'

'

'

'

'

'

'

'

'

'

32,000,000

'

'

'

77,000,000

'

'

'

'

'

'

26,000,000

205,000,000

'

'

'

'

'

'

'

'

'

2,305,000,000

2,223,000,000

'

'

'

'

'

'

'

'

'

12,000,000

Property, plant and equipment

'

'

'

'

'

'

'

'

'

'

'

'

28,000,000

'

'

'

94,000,000

'

'

'

'

'

'

157,000,000

108,000,000

'

'

'

'

'

'

'

'

'

692,000,000

694,000,000

'

'

'

'

'

'

'

'

'

52,000,000

Intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

70,000,000

'

'

'

112,000,000

'

'

'

'

'

'

8,000,000

221,000,000

'

'

'

41,000,000

'

'

'

'

3,901,000,000

3,901,000,000

3,901,000,000

'

'

'

'

'

'

'

'

'

'

Finite-lived intangible assets, weighed average useful life (in years)

'

'

'

'

'

'

'

'

'

'

'

'

'11 years

'11 years

'

'

'14 years

'

'

'

'

'

'

'

'10 years

'10 years

'

'

'15 years

'

'14 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

48,000,000

141,000,000

'

'

'

'

'

'

'

'

'

'

Goodwill, amount tax deductible

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22,000,000

90,000,000

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Liabilities assumed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total liabilities assumed

'

'

'

'

'

'

'

'

'

'

'

'

83,000,000

'

'

'

626,000,000

'

'

'

'

'

'

135,000,000

284,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

22,000,000

Short-term borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

24,000,000

24,000,000

'

'

'

'

'

'

'

'

'

'

Long-term debt due within one year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16,000,000

16,000,000

'

'

'

'

'

'

'

'

'

'

Accounts payable

'

'

'

'

'

'

'

'

'

'

'

'

19,000,000

'

'

'

352,000,000

'

'

'

'

'

'

39,000,000

77,000,000

'

'

'

'

'

'

'

'

'

444,000,000

465,000,000

'

'

'

'

'

'

'

'

'

10,000,000

Debt assumed

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

168,000,000

'

'

'

'

'

'

77,000,000

'

'

'

'

'

'

'

'

'

1,600,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Accrued expenses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

37,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

405,000,000

433,000,000

'

'

'

'

'

'

'

'

'

10,000,000

Customer advances

'

'

'

'

'

'

'

'

'

'

'

'

31,000,000

'

'

'

'

'

'

'

'

'

'

'

43,000,000

'

'

'

'

'

'

'

'

'

668,000,000

668,000,000

'

'

'

'

'

'

'

'

'

'

Other current liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

426,000,000

76,000,000

'

'

'

'

'

'

'

'

'

'

Long-term debt due after one year

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,514,000,000

1,528,000,000

'

'

'

'

'

'

'

'

'

'

Noncurrent deferred income tax liabilities

'

'

'

'

'

'

'

'

'

'

'

'

15,000,000

'

'

'

25,000,000

'

'

'

'

'

'

'

67,000,000

'

'

'

'

'

'

'

'

'

1,874,000,000

1,449,000,000

'

'

'

'

'

'

'

'

'

'

Other liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

434,000,000

517,000,000

'

'

'

'

'

'

'

'

'

'

Net assets acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5,000,000

'

'

'

'

'

7,454,000,000

7,454,000,000

'

'

'

'

'

'

'

'

'

'

Adjustments to preliminary allocation of purchase price

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Finite-lived intangibles decrease

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

82,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Receivables decrease

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

29,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Inventory decrease

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net liabilities increase

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

23,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill increase (decrease)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

149,000,000

'

'

'

'

'

'

'

'

9,000,000

'

'

-647,000,000

'

-28,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill impairment charge

580,000,000

0

580,000,000

0

'

'

'

'

'

'

'

'

'

'

'

'

'

580,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

6,942,000,000

6,956,000,000

6,942,000,000

7,080,000,000

2,614,000,000

'

'

'

'

'

'

'

106,000,000

'

'

'

625,000,000

45,000,000

'

'

'

'

'

22,000,000

'

'

'

396,000,000

23,000,000

'

'

'

'

'

5,263,000,000

4,588,000,000

'

'

'

'

'

'

'

'

'

'

Number of former directors

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of other parties to the settlement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments by Caterpillar to parties of the settlement agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

30,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Obligation related to the loans by former directors

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

13,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gain related to settlement and discharge of loan obligations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$135,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisitions_Details_2

Acquisitions (Details 2) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2010

Dec. 31, 2011

Dec. 31, 2011

Jul. 08, 2011

Dec. 31, 2011

Jul. 08, 2011

Dec. 31, 2011

Jul. 08, 2011

Dec. 31, 2011

Jul. 08, 2011

Jul. 08, 2011

In Millions, except Per Share data, unless otherwise specified

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Customer relationships

Customer relationships

Intellectual property

Intellectual property

Other

Other

Final

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Bucyrus International, Inc.

Acquisitions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Sales

'

'

'

'

$2,524

'

'

'

'

'

'

'

'

'

Profit (loss) before taxes

'

'

'

'

-403

'

'

'

'

'

'

'

'

'

Acquired finite-lived intangible assets

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated fair value of intangible assets

'

'

'

'

'

'

3,901

'

2,337

'

1,489

'

75

3,901

Weighted-average useful life (in years)

'

'

'

'

'14 years

'

'

'15 years

'

'12 years

'

'4 years

'

'

Goodwill acquired

6,956

6,942

7,080

2,614

'

'

'

'

'

'

'

'

'

4,588

Goodwill, amount tax deductible

'

'

'

'

'

'

500

'

'

'

'

'

'

'

Pro forma results

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition related costs excluded

'

'

'

'

'

373

'

'

'

'

'

'

'

'

Nonrecurring expense related to fair value adjustment to acquisition-date inventory excluded

'

'

'

'

'

303

'

'

'

'

'

'

'

'

Acceleration of stock compensation expense excluded

'

'

'

'

'

25

'

'

'

'

'

'

'

'

Total Sales and revenues

'

'

'

'

'

62,281

'

'

'

'

'

'

'

'

Profit

'

'

'

'

'

$5,401

'

'

'

'

'

'

'

'

Profit per common share (in dollars per share)

'

'

'

'

'

$8.37

'

'

'

'

'

'

'

'

Profit per common share diluted (in dollars per share)

'

'

'

'

'

$8.11

'

'

'

'

'

'

'

'

Redeemable_Noncontrolling_Inte1

Redeemable Noncontrolling Interest - Caterpillar Japan Ltd. (Details)	1 Months Ended		12 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Apr. 30, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 02, 2012	Aug. 01, 2008
	USD ($)	JPY (¥)	USD ($)	USD ($)	USD ($)
Redeemable Noncontrolling Interest Disclosure Abstract	'	'	'	'	'	'	'
Caterpillar majority percentage ownership (as a percent)	'	'	'	'	'	100.00%	67.00%
MHI minority percentage ownership (as a percent)	'	'	'	'	'	'	33.00%
Additional ownership percentage by Caterpillar (as a percent)	'	'	'	'	'	33.00%	'
Cash paid to acquire remaining equity interest	$444	¥ 36,500	$0	$444	$0	'	'

Divestitures_and_Assets_held_f2

Divestitures and Assets held for sale (Details) (USD $)

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

12 Months Ended

1 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Jul. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Jul. 31, 2012

Mar. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Mar. 31, 2011

Bucyrus Distribution Business

Bucyrus Distribution Business

Bucyrus Distribution Business

Third party logistics business

Carter Machinery Company Inc.

Cat Financial

Cat Financial

Cat Financial

Transaction

dealers

Transaction

counties

Bucyrus Distribution Business

Bucyrus Distribution Business

Carter Machinery Company Inc.

Transaction

dealers

Disposal groups

'

'

'

'

'

'

'

'

'

'

'

'

Asset impairment charges

'

'

'

'

'

$11

$27

'

'

'

'

'

Number of sales transactions completed

'

'

'

'

1

19

12

'

'

'

'

'

Sales price of business

'

'

'

'

337

466

1,443

567

364

'

'

'

Number of Counties in which Entity has Operations and Stores

'

'

'

'

'

'

'

'

9

'

'

'

After-tax profit (loss) impact

'

'

'

'

9

-39

-28

'

'

'

'

'

Other operating income related to sales transactions

68

630

128

'

96

95

310

278

24

'

'

'

Disposal Group Not Discontinued Operation, Increase (Decrease) in Parts Returns Reserve

'

'

'

'

'

34

'

'

'

'

'

'

Selling, general and administrative expenses

'

'

'

'

32

104

177

'

'

'

'

'

Income tax

'

'

'

'

55

-4

161

'

'

'

'

'

Customer relationship intangible assets sold

'

'

'

'

63

127

256

'

'

'

'

'

Other assets sold

'

'

'

'

53

65

254

'

'

'

'

'

Allocated goodwill

'

'

'

'

101

56

405

'

'

'

'

'

Cat Financial financing of transactions

11,422

12,010

10,001

'

'

'

'

'

'

132

739

348

Number of dealers receiving financing

'

'

'

'

'

5

5

'

'

'

'

'

Number of divestiture transactions classified as held for sale

'

'

'

'

'

10

'

'

'

'

'

'

Working capital adjustment paid

'

'

'

'

23

'

38

'

'

'

'

'

Percentage of equity interest sold in subsidiary (as a percent)

'

'

'

65.00%

'

'

'

65.00%

100.00%

'

'

'

Equity contribution from buyer

'

'

'

'

'

'

'

107

'

'

'

'

Percentage of equity interest retained in subsidiary (as a percent)

'

'

'

'

'

'

'

35.00%

'

'

'

'

Incremental incentive compensation expense

'

'

'

'

'

'

'

8

'

'

'

'

Retained noncontrolling interest fair value

'

'

'

'

'

'

'

$58

'

'

'

'

Divestitures_and_Assets_held_f3

Divestitures and Assets held for sale (Details2) (Bucyrus Distribution Business, USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
In Millions, unless otherwise specified
Bucyrus Distribution Business	'	'	'
Current assets held for sale	'	'	'
Receivables - trade and other	$0	$0	$25
Inventories	14	30	109
Current assets held for sale	14	30	134
Non-current assets held for sale	'	'	'
Property, plant and equipment - net	5	0	28
Intangible assets	44	32	186
Goodwill	45	52	296
Non-current assets held for sale	$94	$84	$510

Restructuring_Costs_Details

Restructuring Costs (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restructuring Charges [Abstract]	'	'	'
Restructuring costs total	$200	$94	$112
Restructuring fixed asset impairments	41	'	'
Other restructuring costs	8	'	'
Estimated cash separation costs	300	'	'
Separation Activity	'	'	'
Liability balance at beginning of period	29	90	22
Increase in liability (separation charges)	151	94	112
Reduction in liability (payments and other adjustments)	-91	-155	-44
Liability balance at end of period	$89	$29	$90

Selected_quarterly_financial_r2

Selected quarterly financial results (unaudited) (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 Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'		'		'
Sales and revenues	$14,402	$13,423	$14,621	$13,210	$16,075	$16,445	$17,374	$15,981	$55,656		$65,875		$60,138
Less: Revenues	-756	-745	-735	-726	-718	-706	-690	-693	-2,962		-2,807		-2,746
Sales	13,646	12,678	13,886	12,484	15,357	15,739	16,684	15,288	52,694		63,068		57,392
Cost of goods sold	10,541	9,774	10,773	9,639	11,899	11,639	12,280	11,237	40,727		47,055		43,578
Gross margin	3,105	2,904	3,113	2,845	3,458	4,100	4,404	4,051	'		'		'
Profit	1,003	946	960	880	697	1,699	1,699	1,586	3,789	[1]	5,681	[1]	4,928	[1]
Profit (loss) per common share	$1.57	$1.48	$1.48	$1.34	$1.07	$2.60	$2.60	$2.44	$5.87		$8.71		$7.64
Profit (loss) per common share - diluted	$1.54	$1.45	$1.45	$1.31	$1.04	$2.54	$2.54	$2.37	$5.75	[2]	$8.48	[2]	$7.40	[2]
Goodwill impairment charge	'	'	'	'	$580	'	'	'	$0		$580		$0
[1]	1 Profit attributable to common stockholders.
[2]	2 Diluted by assumed exercise of stock-based compensation awards, using the treasury stock method.

Subsequent_Events_Details

Subsequent Events (Details) (USD $)	1 Months Ended		3 Months Ended		12 Months Ended
	Jan. 31, 2014	Feb. 28, 2007	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Subsequent Events [Abstract]	'	'	'	'	'	'	'
Stock Repurchase Program, Authorized Amount	$10,000,000,000	$7,500,000,000	'	'	'	'	'
Payments for repurchase of common stock	$1,700,000,000	'	$1,000,000,000	$1,000,000,000	$2,000,000,000	$0	$0
Common shares repurchased (in shares)	17,719,132	'	11,942,737	11,542,106	23,484,843	0	0