Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Revenues	$ 16,565	$ 18,117	$ 51,257	$ 60,307
Cost of Revenue	15,476	16,647	48,102	56,990
Gross Profit	1,089	1,470	3,155	3,317
Selling, general, and administrative expenses	511	451	1,528	1,270
Asset impairment, exit, and restructuring costs	65	0	96	31
Interest Expense	69	79	235	251
Equity in earnings of unconsolidated affiliates	(61)	(21)	(287)	(231)
Interest income	(13)	(16)	(52)	(62)
Other (income) expense - net	151	(56)	52	(76)
Earnings Before Income Taxes	367	1,033	1,583	2,134
Income taxes	114	285	454	586
Net earnings including noncontrolling interests	253	748	1,129	1,548
Less: Net earnings (losses) attributable to noncontrolling interests	1	1	(2)	1
Net Earnings Attributable to Controlling Interests	$ 252	$ 747	$ 1,131	$ 1,547
Average number of shares outstanding - basic	612	650	624	655
Average number of shares outstanding - diluted	615	653	627	658
Earnings Per Share, Basic	$ 0.41	$ 1.15	$ 1.81	$ 2.36
Earnings Per Share, Diluted	0.41	1.14	1.80	2.35
Dividends per common share	$ 0.28	$ 0.24	$ 0.84	$ 0.72