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Condensed Consolidated Statements Of Cash Flows (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Net cash provided by (used in) operating activities $ 2,499 $ (377)
Cash flows from investing activities    
Expenditures for property (1,994) (1,322)
Available-for-sale marketable securities, acquisitions (2,368) (7,287)
Trading marketable securities, acquisitions (2,198) (157)
Available-for-sale marketable securities, liquidations 4,027 4,262
Trading marketable securities, liquidations 1,694 159
Acquisition of companies, net of cash acquired 56 (1)
Operating leases, liquidations 8 16
Proceeds from sale of business units/investments, net 0 4,805
Increase in restricted cash and marketable securities (176) (189)
Decrease in restricted cash and marketable securities 315 243
Purchases of finance receivables (1,369) (1,135)
Principal collections and recoveries on finance receivables 1,016 954
Net purchases of leased vehicles (304) (320)
Other investing activities 1 11
Net cash provided by (used in) investing activities (1,292) 39
Cash flows from financing activities    
Net increase (decrease) in short-term debt (146) 119
Proceeds from issuance of debt (original maturities greater than three months) 2,394 2,141
Payments on debt (original maturities greater than three months) (2,057) (1,714)
Payments to acquire noncontrolling interest 0 (100)
Dividends paid (217) (221)
Proceeds from issuance of stock 3 0
Other financing activities (5) (18)
Net cash provided by (used in) financing activities (28) 207
Effect of exchange rate changes on cash and cash equivalents 128 183
Net increase in cash and cash equivalents 1,307 52
Cash and cash equivalents at beginning of period 16,071 21,256
Cash and cash equivalents at end of period $ 17,378 $ 21,308