CONSOLIDATED STATEMENTS OF SHAREOWNER'S EQUITY - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss).
Balance (Predecessor) 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 | Predecessor	291,602				291,602
Other comprehensive income (loss) | Predecessor	(1,272,158)					(1,272,158)
Total comprehensive income (loss) | Predecessor	(980,556)
Capital contributions | Predecessor	70,000			70,000
Dividends paid to the parent company | Predecessor	(86,231)				(86,231)
Balance (Predecessor) at Dec. 31, 2013	4,690,426	2	5,000	1,433,258	2,713,200	538,966
Increase (decrease) in shareowner's equity
Net income | Predecessor	491,951				491,951
Other comprehensive income (loss) | Predecessor	944,245					944,245
Total comprehensive income (loss) | Predecessor	1,436,196
Capital contributions | Predecessor	4,529			4,529
Dividends paid to the parent company | Predecessor	(300,000)				(300,000)
Balance (Predecessor) at Dec. 31, 2014	5,831,151	2	5,000	1,437,787	2,905,151	1,483,211
Increase (decrease) in shareowner's equity
Net income | Predecessor	88,522				88,522
Other comprehensive income (loss) | Predecessor	477,766					477,766
Total comprehensive income (loss) | Predecessor	566,288
Balance (Predecessor) at Jan. 31, 2015	6,397,439	2	5,000	1,437,787	2,993,673	1,960,977
Balance (Successor) at Jan. 31, 2015	6,509,213	2	5,000	6,504,211	0	0
Increase (decrease) in shareowner's equity
Net income | Successor	179,697				179,697
Other comprehensive income (loss) | Successor	(1,246,391)					(1,246,391)
Total comprehensive income (loss) | Successor	(1,066,694)
Dividends paid to the parent company | Successor	(25,000)				(25,000)
Return of capital | Successor	(230,042)			(230,042)
Balance (Successor) at Dec. 31, 2015	$ 5,187,477	$ 2	$ 5,000	$ 6,274,169	$ 154,697	$ (1,246,391)