Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Cash Flows from Operating Activities:
Net income	$ 288	$ 329	$ 880	$ 945
Adjustments required to reconcile net income to cash flows from operating activities:
Depreciation and amortization	339	301	965	890
Provision for receivables	23	45	83	99
Provision for inventory	9	13	26	32
Net loss (gain) on sales of businesses and assets	5	0	2	(8)
Undistributed equity in net income of unconsolidated affiliates	(32)	(43)	(67)	(83)
Stock-based compensation	30	29	92	92
Restructuring and asset impairment charges	14	(4)	60	(28)
Payments for restructurings	(30)	(42)	(113)	(162)
Contributions to defined benefit pension plans	(73)	(225)	(310)	(348)
Increase in accounts receivable and billed portion of finance receivables	(413)	(262)	(1,021)	(548)
Collections of deferred proceeds from sales of receivables	94	105	350	287
Increase in inventories	(44)	(141)	(128)	(278)
Increase in equipment on operating leases	(65)	(76)	(200)	(205)
Decrease in finance receivables	412	74	687	234
Increase in other current and long-term assets	(34)	(61)	(196)	(184)
Increase (decrease) in accounts payable and accrued compensation	7	181	(230)	(197)
Increase (decrease) in other current and long-term liabilities	36	78	(126)	(97)
Net change in income tax assets and liabilities	32	52	93	220
Net change in derivative assets and liabilities	7	19	(2)	43
Other operating, net	(11)	(6)	(38)	(21)
Net cash provided by operating activities	594	366	807	683
Cash Flows from Investing Activities:
Cost of additions to land, buildings and equipment	(110)	(80)	(283)	(245)
Proceeds from sales of land, buildings and equipment	1	5	8	9
Cost of additions to internal use software	(30)	(41)	(100)	(122)
Acquisitions, net of cash acquired	(156)	(51)	(243)	(188)
Net change in escrow and other restricted investments	6	(1)	14	(9)
Other investing, net	0	1	3	20
Net cash used in investing activities	(289)	(167)	(601)	(535)
Cash Flows from Financing Activities:
Net proceeds (payments) on debt	199	(101)	742	602
Payment of liability to subsidiary trust issuing preferred securities	0	0	0	670
Common stock dividends	(63)	(63)	(177)	(182)
Preferred stock dividends	(6)	(6)	(18)	(18)
Proceeds from issuances of common stock	33	10	43	41
Excess tax benefits from stock-based compensation	10	1	10	5
Payments to acquire treasury stock, including fees	(361)	(309)	(718)	(309)
Repurchases related to stock-based compensation	(40)	(21)	(41)	(27)
Distributions to noncontrolling interests	(2)	(3)	(63)	(15)
Net cash used in financing activities	(230)	(492)	(222)	(573)
Effect of exchange rate changes on cash and cash equivalents	(7)	(20)	(4)	(1)
Increase (decrease) in cash and cash equivalents	68	(313)	(20)	(426)
Cash and cash equivalents at beginning of period	814	1,098	902	1,211
Cash and Cash Equivalents at End of Period	$ 882	$ 785	$ 882	$ 785