Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Statement [Abstract]
Revenues	$ 15,832	$ 16,565	$ 45,845	$ 51,257
Cost of Revenue	14,727	15,476	43,187	48,102
Gross Profit	1,105	1,089	2,658	3,155
Selling, general, and administrative expenses	561	519	1,575	1,550
Asset impairment, exit, and restructuring costs	11	65	36	96
Interest expense	78	69	213	235
Equity in earnings of unconsolidated affiliates	2	(61)	(153)	(287)
Interest income	(23)	(13)	(68)	(52)
Other Income (Expense)	(4)	143	(138)	30
Earnings Before Income Taxes	480	367	1,193	1,583
Income taxes	136	114	331	454
Net earnings including noncontrolling interests	344	253	862	1,129
Less: Net earnings (losses) attributable to noncontrolling interests	3	1	7	(2)
Net Earnings Attributable to Controlling Interests	$ 341	$ 252	$ 855	$ 1,131
Average number of shares outstanding - basic	586	612	591	624
Average number of shares outstanding - diluted	589	615	593	627
Earnings Per Share, Basic	$ 0.58	$ 0.41	$ 1.45	$ 1.81
Earnings Per Share, Diluted	0.58	0.41	1.44	1.80
Dividends per common share	$ 0.30	$ 0.28	$ 0.9	$ 0.84