Earnings Per Share (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income (Loss) from Continuing Operations	$ 40,842	$ (125,261)	$ 81,380	$ (94,299)
Effect of dilutive securities	1,643,000	0	1,804,000	0
Dilutive shares	240,891,000	249,104,000	241,859,000	251,317,000
Parent Company [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Income (Loss) from Continuing Operations	$ 42,400	$ (125,300)	$ 84,100	$ (94,300)
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options, weighted average exercise price	$ 21.35	$ 21.54	$ 21.89	$ 22.26
Shares excluded from computation of earnings per share	8,600,000	10,500,000	8,700,000	10,600,000
Other Equity Awards [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded from computation of earnings per share		3,400,000		3,500,000