Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Revenues	$ 15,629	$ 17,186	$ 30,013	$ 34,692
Cost of Revenue	14,872	16,222	28,460	32,626
Gross Profit	757	964	1,553	2,066
Selling, general, and administrative expenses	520	525	1,014	1,031
Asset impairment, exit, and restructuring costs	12	31	25	31
Interest expense	65	85	135	166
Equity in earnings of unconsolidated affiliates	(90)	(87)	(155)	(226)
Interest income	(23)	(21)	(45)	(39)
Other Income (Expense)	(134)	(95)	(134)	(113)
Earnings Before Income Taxes	407	526	713	1,216
Income taxes	119	143	195	340
Net earnings including noncontrolling interests	288	383	518	876
Less: Net earnings (losses) attributable to noncontrolling interests	4	(3)	4	(3)
Net Earnings Attributable to Controlling Interests	$ 284	$ 386	$ 514	$ 879
Average number of shares outstanding - basic	591	624	593	630
Average number of shares outstanding - diluted	594	627	595	633
Earnings Per Share, Basic	$ 0.48	$ 0.62	$ 0.87	$ 1.40
Earnings Per Share, Diluted	0.48	0.62	0.87	1.39
Dividends per common share	$ 0.30	$ 0.28	$ 0.6	$ 0.56