Consolidated Statement of Shareholder's Equity - USD ($) $ in Millions	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]
Beginning balance at Dec. 31, 2013	$ 2,687	$ 0	$ 161	$ (478)	$ 3,004
Net income	353				353
Other comprehensive loss	(309)			(309)
Cash Dividends Paid	(342)				(342)
Ending balance at Dec. 31, 2014	2,389	0	161	(787)	3,015
Net income	214				214
Other comprehensive loss	(369)			(369)
Cash Dividends Paid	(115)				(115)
Ending balance at Dec. 31, 2015	2,119	0	161	(1,156)	3,114
Net income	197				197
Other comprehensive loss	(107)			(107)
Cash Dividends Paid	0				0
Ending balance at Dec. 31, 2016	$ 2,209	$ 0	$ 161	$ (1,263)	$ 3,311