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Income, Sales-Based And Other Taxes (Schedule Of Income, Sales-Based And Other Taxes) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income, Sales-Based and Other Taxes [Line Items]      
Current $ 30,396 $ 22,317 $ 14,992
Deferred - net 160 (1,142) (15)
U.S. tax on non-U.S. operations 15 46 32
Total federal and non-U.S. 30,571 21,221 15,009
State 480 340 110
Total income tax expense 31,051 21,561 15,119
Sales-based taxes 33,503 [1] 28,547 [1] 25,936 [1]
Other taxes and duties 39,973 36,118 34,819
Other taxes and duties included in production and manufacturing expenses 2,767 2,238 2,017
Other taxes and duties included in SG&A expenses 804 771 735
Total other taxes and duties 43,544 39,127 37,571
Total 108,098 89,235 78,626
U.S. [Member]
      
Income, Sales-Based and Other Taxes [Line Items]      
Current 1,547 1,224 (838)
Deferred - net 1,577 49 650
U.S. tax on non-U.S. operations 15 46 32
Total federal and non-U.S. 3,139 1,319 (156)
State 480 340 110
Total income tax expense 3,619 1,659 (46)
Sales-based taxes 5,652 6,182 6,271
Other taxes and duties 1,539 776 581
Other taxes and duties included in production and manufacturing expenses 1,342 1,001 699
Other taxes and duties included in SG&A expenses 181 201 197
Total other taxes and duties 3,062 1,978 1,477
Total 12,333 9,819 7,702
Non-U.S. [Member]
      
Income, Sales-Based and Other Taxes [Line Items]      
Current 28,849 21,093 15,830
Deferred - net (1,417) (1,191) (665)
Total federal and non-U.S. 27,432 19,902 15,165
Total income tax expense 27,432 19,902 15,165
Sales-based taxes 27,851 22,365 19,665
Other taxes and duties 38,434 35,342 34,238
Other taxes and duties included in production and manufacturing expenses 1,425 1,237 1,318
Other taxes and duties included in SG&A expenses 623 570 538
Total other taxes and duties 40,482 37,149 36,094
Total $ 95,765 $ 79,416 $ 70,924
[1] Sales and other operating revenue includes sales-based taxes of $33,503 million for 2011, $28,547 million for 2010 and $25,936 million for 2009.