Consolidated Results of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Consolidated Results of Operations [Abstract]
Revenues	$ 10,381	$ 9,138	$ 7,795
Costs and expenses:
Cost of sales (exclusive of depreciation and amortization shown separately below)	7,464	6,518	5,522
Selling and administrative expenses	1,287	1,275	1,070
Depreciation and amortization	348	298	238
Interest, net	129	100	90
Other costs (see Note 3)	73	92	33
Total costs and expenses	9,301	8,283	6,953
Income from continuing operations before income taxes	1,080	855	842
Income tax provision	(258)	(196)	(157)
Income from continuing operations	822	659	685
Income from discontinued operations, net of income taxes	26	65	66
Net income	848	724	751
Less: Net income attributable to noncontrolling interests	37	25	0
Net income attributable to Cameron stockholders	811	699	751
Amounts attributable to Cameron stockholders:
Income from continuing operations	785	634	685
Income from discontinued operations	26	65	66
Net income attributable to Cameron stockholders	$ 811	$ 699	$ 751
Basic -
Continuing operations (in dollars per share)	$ 3.85	$ 2.62	$ 2.78
Discontinued operations (in dollars per share)	$ 0.13	$ 0.27	$ 0.27
Basic earnings per share (in dollars per share)	$ 3.98	$ 2.89	$ 3.05
Diluted -
Continuing operations (in dollars per share)	$ 3.83	$ 2.60	$ 2.76
Discontinued operations (in dollars per share)	$ 0.13	$ 0.27	$ 0.27
Diluted earnings per share (in dollars per share)	$ 3.96	$ 2.87	$ 3.03