CONSOLIDATED STATEMENTS OF SHAREOWNER'S EQUITY (USD $) In Thousands, unless otherwise specified	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2010	$ 4,072,113	$ 2	$ 5,000	$ 1,361,734	$ 2,347,537	$ 357,840
Increase (decrease) in shareowner's equity
Net income	323,756				323,756
Other comprehensive income (loss)	696,481					696,481
Total comprehensive income (loss)	1,020,237
Dividends paid to the parent company	(215,000)				(215,000)
Balance at Dec. 31, 2011	4,877,350	2	5,000	1,361,734	2,456,293	1,054,321
Increase (decrease) in shareowner's equity
Net income	308,536				308,536
Other comprehensive income (loss)	756,803					756,803
Total comprehensive income (loss)	1,065,339
Capital contributions	1,524			1,524
Dividends paid to the parent company	(257,000)				(257,000)
Balance at Dec. 31, 2012	5,687,213	2	5,000	1,363,258	2,507,829	1,811,124
Increase (decrease) in shareowner's equity
Net income	291,602				291,602
Other comprehensive income (loss)	(1,272,158)					(1,272,158)
Total comprehensive income (loss)	(980,556)
Capital contributions	70,000			70,000
Dividends paid to the parent company	(86,231)				(86,231)
Balance at Dec. 31, 2013	$ 4,690,426	$ 2	$ 5,000	$ 1,433,258	$ 2,713,200	$ 538,966