Consolidated Results of Operations - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Revenues	$ 8,782	$ 10,381	$ 9,138
Costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown separately below)	6,126	7,464	6,518
Selling and administrative expenses	1,082	1,287	1,275
Depreciation and amortization	342	348	298
Interest, net	138	129	100
Asset charges (see Note 4)	639	44	0
Other costs (see Note 4)	134	29	92
Total costs and expenses	8,461	9,301	8,283
Income from continuing operations before income taxes	321	1,080	855
Income tax provision	(184)	(258)	(196)
Income from continuing operations	137	822	659
Income from discontinued operations, net of income taxes	431	26	65
Net income	568	848	724
Less: Net income attributable to noncontrolling interests	67	37	25
Net income attributable to Cameron stockholders	501	811	699
Amounts attributable to Cameron stockholders:
Income from continuing operations	70	785	634
Income from discontinued operations	431	26	65
Net income attributable to Cameron stockholders	$ 501	$ 811	$ 699
Basic -
Continuing operations (in dollars per share)	$ 0.36	$ 3.85	$ 2.62
Discontinued operations (in dollars per share)	2.25	0.13	0.27
Basic earnings per share (in dollars per share)	2.61	3.98	2.89
Diluted -
Continuing operations (in dollars per share)	0.36	3.83	2.60
Discontinued operations (in dollars per share)	2.24	0.13	0.27
Diluted earnings per share (in dollars per share)	$ 2.60	$ 3.96	$ 2.87