Consolidated Statements of Stockholders' Equity $ in Millions	USD ($)
Balance, beginning of year at Dec. 31, 2013	$ 683
Balance, end of period at Jun. 30, 2014	683
Balance, beginning of year at Dec. 31, 2013	2,145
Additional Paid-in Capital
Stock-based compensation	1
Balance, end of period at Jun. 30, 2014	2,146
Balance, beginning of year at Dec. 31, 2013	9,495
Retained Earnings (Accumulated Deficit)
Dividends paid to common stockholders	(406)
Net income (loss)	280
Balance, end of period at Jun. 30, 2014	9,369
Accumulated other comprehensive income (loss), beginning balance at Dec. 31, 2013	442
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss)	520
Accumulated other comprehensive income (loss), ending balance at Jun. 30, 2014	962
Balance, beginning of year at Dec. 31, 2013	(91)
Treasury Stock
Stock Based Compensation and Other	6
Balance, end of period at Jun. 30, 2014	(85)
Balance, beginning of year at Dec. 31, 2013	(23)
Notes Receivable for the Issuance of Common Stock
Decrease (increase) in notes receivable from the issuance of common stock	22
Balance, end of period at Jun. 30, 2014	(1)
Balance, end of period at Jun. 30, 2014	683
Balance, end of period at Jun. 30, 2014	2,146
Retained Earnings (Accumulated Deficit)
Net income (loss)	267
Balance, end of period at Jun. 30, 2014	9,369
Accumulated other comprehensive income (loss), beginning balance at Mar. 31, 2014	692
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss)	270
Accumulated other comprehensive income (loss), ending balance at Jun. 30, 2014	962
Balance, end of period at Jun. 30, 2014	(85)
Balance, end of period at Jun. 30, 2014	(1)
Notes Receivable for the Issuance of Common Stock
Total stockholders’ equity	13,074
Total stockholders’ equity	12,794
Balance, beginning of year at Dec. 31, 2014	683
Balance, end of period at Jun. 30, 2015	683
Balance, beginning of year at Dec. 31, 2014	2,151
Additional Paid-in Capital
Stock-based compensation	(5)
Balance, end of period at Jun. 30, 2015	2,146
Balance, beginning of year at Dec. 31, 2014	9,645
Retained Earnings (Accumulated Deficit)
Dividends paid to common stockholders	(676)
Net income (loss)	371
Balance, end of period at Jun. 30, 2015	9,340
Accumulated other comprehensive income (loss), beginning balance at Dec. 31, 2014	400
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss)	(257)
Accumulated other comprehensive income (loss), ending balance at Jun. 30, 2015	143
Balance, beginning of year at Dec. 31, 2014	(84)
Treasury Stock
Stock Based Compensation and Other	6
Balance, end of period at Jun. 30, 2015	(78)
Balance, beginning of year at Dec. 31, 2014	(1)
Notes Receivable for the Issuance of Common Stock
Decrease (increase) in notes receivable from the issuance of common stock	1
Balance, end of period at Jun. 30, 2015	0
Balance, end of period at Jun. 30, 2015	683
Balance, end of period at Jun. 30, 2015	2,146
Retained Earnings (Accumulated Deficit)
Net income (loss)	138
Balance, end of period at Jun. 30, 2015	9,340
Accumulated other comprehensive income (loss), beginning balance at Mar. 31, 2015	421
Accumulated Other Comprehensive Income (Loss)
Other comprehensive income (loss)	(278)
Accumulated other comprehensive income (loss), ending balance at Jun. 30, 2015	143
Balance, end of period at Jun. 30, 2015	(78)
Balance, end of period at Jun. 30, 2015	0
Notes Receivable for the Issuance of Common Stock
Total stockholders’ equity	$ 12,234