Earnings Per Share

3 Months Ended

Mar. 31, 2012

Earnings Per Share [Abstract]

Earnings Per Share

4. Earnings Per Share

	Three Months Ended March 31,
	2012		2011
Earnings per common share
Net income attributable to ExxonMobil (millions of dollars)	$	9,450	$	10,650
Weighted average number of common shares outstanding (millions of shares)		4,715		4,963
Earnings per common share (dollars)	$	2.00	$	2.14
Earnings per common share - assuming dilution
Net income attributable to ExxonMobil (millions of dollars)	$	9,450	$	10,650
Weighted average number of common shares outstanding (millions of shares)		4,715		4,963
Effect of employee stock-based awards		1		8
Weighted average number of common shares outstanding - assuming dilution		4,716		4,971
Earnings per common share - assuming dilution (dollars)	$	2.00	$	2.14