Dividends (Tables)

12 Months Ended

Dec. 31, 2015

Dividends, Common Stock [Abstract]

Schedule of dividends declared

Our Board of Directors declared the following dividends payable in 2015 and 2014:

Date Declared	Record Date	Dividend Per Share		Total Amount		Payment Date
				(in millions)
November 10, 2015	11/24/2015	$	0.540	$	293	12/8/2015
August 25, 2015	9/8/2015	0.540		300		9/22/2015
May 20, 2015	6/2/2015	0.540		303		6/16/2015
February 23, 2015	3/6/2015	0.540		303		3/20/2015
November 11, 2014	11/24/2014	0.540		307		12/5/2014
August 19, 2014	8/29/2014	0.540		308		9/12/2014
May 28, 2014	6/9/2014	0.540		307		6/20/2014
February 24, 2014	3/10/2014	0.540		309		3/21/2014