CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)					6 Months Ended						6 Months Ended						6 Months Ended						6 Months Ended								6 Months Ended
	Jun. 30, 2013 Preferred Stock	Jun. 30, 2012 Preferred Stock	Jun. 30, 2013 Common Stock	Jun. 30, 2012 Common Stock	Jun. 29, 2013 PAID-IN CAPITAL	Jun. 29, 2012 PAID-IN CAPITAL	Jun. 30, 2013 PAID-IN CAPITAL	Dec. 31, 2012 PAID-IN CAPITAL	Jun. 30, 2012 PAID-IN CAPITAL	Dec. 31, 2011 PAID-IN CAPITAL	Jun. 29, 2013 RETAINED EARNINGS	Jun. 29, 2012 RETAINED EARNINGS	Jun. 30, 2013 RETAINED EARNINGS	Dec. 31, 2012 RETAINED EARNINGS	Jun. 30, 2012 RETAINED EARNINGS	Dec. 31, 2011 RETAINED EARNINGS	Jun. 29, 2013 Accumulated Other Comprehensive Income (Loss) [Member]	Jun. 29, 2012 Accumulated Other Comprehensive Income (Loss) [Member]	Jun. 30, 2013 Accumulated Other Comprehensive Income (Loss) [Member]	Dec. 31, 2012 Accumulated Other Comprehensive Income (Loss) [Member]	Jun. 30, 2012 Accumulated Other Comprehensive Income (Loss) [Member]	Dec. 31, 2011 Accumulated Other Comprehensive Income (Loss) [Member]	Jun. 29, 2013 TREASURY STOCK - COMMON	Jun. 29, 2012 TREASURY STOCK - COMMON	Jun. 30, 2013 TREASURY STOCK - COMMON	Dec. 31, 2012 TREASURY STOCK - COMMON	Jun. 30, 2012 TREASURY STOCK - COMMON	Dec. 31, 2011 TREASURY STOCK - COMMON	Jun. 30, 2013 Parent	Jun. 30, 2012 Parent	Jun. 29, 2013 NONCONTROLLING INTERESTS	Jun. 29, 2012 NONCONTROLLING INTERESTS	Jun. 30, 2013 NONCONTROLLING INTERESTS	Dec. 31, 2012 NONCONTROLLING INTERESTS	Jun. 30, 2012 NONCONTROLLING INTERESTS	Dec. 31, 2011 NONCONTROLLING INTERESTS
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period	$ 3,062,000,000	$ 3,062,000,000	$ 7,000,000	$ 7,000,000			$ 12,383,000,000	$ 12,293,000,000	$ 12,226,000,000	$ 12,146,000,000			$ 805,000,000	$ 437,000,000	$ 2,352,000,000	$ 1,608,000,000			$ (170,000,000)	$ (182,000,000)	$ (181,000,000)	$ (166,000,000)			$ (52,000,000)	$ (48,000,000)	$ (39,000,000)	$ (33,000,000)	$ 16,035,000,000	$ 17,427,000,000			$ 2,169,000,000	$ 2,327,000,000	$ 2,361,000,000	$ 1,337,000,000
Stock-based compensation					99,000,000	84,000,000
Reduction in tax benefit from stock-based compensation					(12,000,000)	(4,000,000)
Exercise of stock options					3,000,000	0
Net income attributable to Chesapeake											639,000,000	944,000,000
Dividends on common stock											(116,000,000)	(114,000,000)
Dividends on preferred stock											(86,000,000)	(86,000,000)
Premium on purchase of preferred shares of a subsidiary											(69,000,000)	0
Hedging activity																	11,000,000	(12,000,000)
Investment activity																	1,000,000	(3,000,000)
Purchase of 247,183 and 272,640 shares for company benefit plans																							(5,000,000)	(6,000,000)
Release of 106,458 and 13,254 shares from company benefit plans																							1,000,000	0
Sales of noncontrolling interests																															5,000,000	1,039,000,000
Net income attributable to noncontrolling interests																															89,000,000	89,000,000
Distributions to noncontrolling interest owners																															(109,000,000)	(104,000,000)
Purchase of preferred shares of a subsidiary																															(143,000,000)	0
Balance, end of period	$ 3,062,000,000	$ 3,062,000,000	$ 7,000,000	$ 7,000,000			$ 12,383,000,000	$ 12,293,000,000	$ 12,226,000,000	$ 12,146,000,000			$ 805,000,000	$ 437,000,000	$ 2,352,000,000	$ 1,608,000,000			$ (170,000,000)	$ (182,000,000)	$ (181,000,000)	$ (166,000,000)			$ (52,000,000)	$ (48,000,000)	$ (39,000,000)	$ (33,000,000)	$ 16,035,000,000	$ 17,427,000,000			$ 2,169,000,000	$ 2,327,000,000	$ 2,361,000,000	$ 1,337,000,000