Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash Flows from Operating Activities:
Net income	$ 492	$ 1,036	$ 1,179
Adjustments required to reconcile net income to cash flows from operating activities:
Depreciation and amortization	1,190	1,426	1,358
Provision for receivables	58	53	123
Provision for inventory	30	26	35
Deferred tax expense	32	69	117
Net loss (gain) on sales of businesses and assets	57	134	(45)
Undistributed equity in net income of unconsolidated affiliates	(79)	(91)	(92)
Stock-based compensation	46	91	90
Restructuring and asset impairment charges	186	130	116
Payments for restructurings	(98)	(133)	(136)
Contributions to defined benefit pension plans	(309)	(284)	(230)
Decrease (increase) in accounts receivable and billed portion of finance receivables	111	(436)	(576)
Collections of deferred proceeds from sales of receivables	259	434	482
Increase in inventories	(101)	(22)	(38)
Increase in equipment on operating leases	(291)	(283)	(303)
(Increase) decrease in finance receivables	(8)	(10)	609
Collections on beneficial interest from sales of finance receivables	46	79	58
Increase in other current and long-term assets	(71)	(159)	(145)
Increase (decrease) in accounts payable and accrued compensation	38	128	(29)
Increase (decrease) in other current and long-term liabilities	183	(64)	(50)
Other operating, net	(160)	(61)	(148)
Net cash provided by operating activities	1,611	2,063	2,375
Cash Flows from Investing Activities:
Cost of additions to land, buildings and equipment	(251)	(368)	(346)
Proceeds from sales of land, buildings and equipment	93	54	86
Cost of additions to internal use software	(91)	(84)	(81)
Proceeds from sale of businesses	939	26	26
Acquisitions, net of cash acquired	(210)	(340)	(155)
Other investing, net	28	9	18
Net cash provided by (used in) investing activities	508	(703)	(452)
Cash Flows from Financing Activities:
Net (payments) proceeds on short-term debt	(147)	145	5
Proceeds from issuance of long-term debt	1,079	808	617
Payments on long-term debt	(1,302)	(1,128)	(1,056)
Common stock dividends	(302)	(289)	(272)
Preferred stock dividends	(24)	(24)	(24)
Proceeds from issuances of common stock	19	55	124
Excess tax benefits from stock-based compensation	19	18	16
Payments to acquire treasury stock, including fees	(1,302)	(1,071)	(696)
Repurchases related to stock-based compensation	(51)	(41)	(57)
Distributions to noncontrolling interests	(62)	(87)	(56)
Other financing	(1)	(10)	(3)
Net cash used in financing activities	(2,074)	(1,624)	(1,402)
Effect of exchange rate changes on cash and cash equivalents	(88)	(89)	(3)
(Decrease) increase in cash and cash equivalents	(43)	(353)	518
Cash and cash equivalents at beginning of year	1,411	1,764	1,246
Cash and Cash Equivalents at End of Year	$ 1,368	$ 1,411	$ 1,764