EARNINGS PER SHARE (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Nov. 30, 2014	Dec. 01, 2014
Basic EPS
Net income / (loss)	$ (1,434)	$ 869	$ 699
Net income / (loss) allocated to participating securities		(14)	(11)
Net income / (loss) net of participating securities	(1,434)	855	688
Weighed average common shares outstanding - basic	381.9	381.8	381.8
Basic EPS (in dollars per share)	$ (3.75)	$ 2.24	$ 1.80
Diluted EPS
Net income / (loss)	(1,434)	869	699
Net income / (loss) allocated to participating securities		(14)	(11)
Net income / (loss) net of participating securities	$ (1,434)	$ 855	$ 688
Weighed average common shares outstanding - basic	381.9	381.8	381.8
Dilutive effect of potentially dilutive securities	0
Total diluted weighted average common shares	381.9	381.8	381.8
Diluted EPS (in dollars per share)	$ (3.75)	$ 2.24	$ 1.80
Weighted-average basic shares					381.8
Occidental Petroleum And Subsidiaries | Spinoff - CRC
Diluted EPS
Common stock distributed to Occidental stockholders				381.4
Percentage of outstanding shares of common stock retained by Occidental				18.50%