Condensed Consolidated Statement of Cash Flows (USD $) In Millions	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net income including noncontrolling interests	$ 21,811	$ 14,321
Depreciation and depletion	7,642	6,646
Changes in operational working capital, excluding cash and debt	1,078	2,068
All other items - net	(786)	(754)
Net cash provided by operating activities	29,745	22,281
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment	(14,863)	(11,400)
Sales of subsidiaries, investments and property, plant and equipment	2,838	852
Additional investments and advances	(2,949)	(302)
Additions to marketable securities	(1,754)	(4)
Other investing activities - net	871	609
Net cash used in investing activities	(15,857)	(10,245)
CASH FLOWS FROM FINANCING ACTIVITIES
Additions to long-term debt	249	33
Reductions in long-term debt	(43)	(16)
Additions/(reductions) in short-term debt - net	1,182	(697)
Cash dividends to ExxonMobil shareholders	(4,496)	(4,052)
Cash dividends to noncontrolling interests	(152)	(139)
Changes in noncontrolling interests	(12)	(2)
Tax benefits related to stock-based awards	171	28
Common stock acquired	(11,165)	(4,063)
Common stock sold	452	111
Net cash used in financing activities	(13,814)	(8,797)
Effects of exchange rate changes on cash	388	(680)
Increase/(decrease) in cash and cash equivalents	462	2,559
Cash and cash equivalents at beginning of period	7,825	10,693
Cash and cash equivalents at end of period	8,287	13,252
SUPPLEMENTAL DISCLOSURES
Income taxes paid	13,547	9,487
Cash interest paid	$ 262	$ 294