CONSOLIDATED CONDENSED STATEMENTS OF SHAREOWNER'S EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In-Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance at Dec. 31, 2016						$ (655,040)
Increase (decrease) in shareowner's equity
Other comprehensive loss						705,194
Ending Balance at Dec. 31, 2017	$ 8,324,285	$ 2	$ 5,000	$ 7,378,496	$ 916,971	23,816
Increase (decrease) in shareowner's equity
Cumulative effect adjustments	(88,594)				(78,042)	(10,552)
Net income for the six months ended June 30, 2018	70,543				70,543
Other comprehensive loss	(998,300)					(998,300)
Total comprehensive income (loss)	(927,757)
Ending Balance at Jun. 30, 2018	$ 7,307,934	$ 2	$ 5,000	$ 7,378,496	$ 909,472	$ (985,036)