Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenues	$ 17,186	$ 21,494	$ 34,692	$ 42,190
Cost of Revenue	16,222	20,322	32,626	40,343
Gross Profit	964	1,172	2,066	1,847
Selling, general, and administrative expenses	519	426	1,017	819
Asset impairment, exit, and restructuring costs	31	31	31	31
Interest expense	85	79	166	172
Equity in earnings of unconsolidated affiliates	(87)	(78)	(226)	(210)
Interest income	(21)	(24)	(39)	(46)
Other (income) expense - net	(89)	3	(99)	(20)
Earnings Before Income Taxes	526	735	1,216	1,101
Income taxes	143	203	340	301
Net earnings including noncontrolling interests	383	532	876	800
Less: Net earnings (losses) attributable to noncontrolling interests	(3)	(1)	(3)	0
Net Earnings Attributable to Controlling Interests	$ 386	$ 533	$ 879	$ 800
Average number of shares outstanding - basic	624	656	630	658
Average number of shares outstanding - diluted	627	659	633	661
Earnings Per Share, Basic	$ 0.62	$ 0.81	$ 1.40	$ 1.22
Earnings Per Share, Diluted	0.62	0.81	1.39	1.21
Dividends per common share	$ 0.28	$ 0.24	$ 0.56	$ 0.48