Condensed Consolidated Statement Of Income (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Condensed Consolidated Statement Of Income [Abstract]
Sales-based taxes included in sales and other operating revenue	$ 5,530	[1]	$ 7,416	[1]

[1] Sales-based taxes included in sales and other operating revenue for the three months ended March 31, 2015, and 2014, were $5,530 million and $7,416 million, respectively.