Stockholder's Equity (Tables)

12 Months Ended

Dec. 31, 2014

Stockholders' Equity Note [Abstract]

Schedule of cash dividends declared

We declared the following cash dividend to QSC:

	Years Ended December 31,
	2014		2013	2012
	(Dollars in millions)
Cash dividend declared to QSC	$	1,400	1,325	840
Cash dividend paid to QSC	1,400		1,325	1,150