Dividends (Tables)

12 Months Ended

Dec. 31, 2018

Dividends, Common Stock [Abstract]

Schedule of dividends declared

Our Board of Directors declared the following dividends payable in 2018 and 2017:

Date Declared	Record Date	Dividend Per Share		Total Amount		Payment Date
				(in millions)
November 14, 2018	11/26/2018	$	0.540	$	586	12/7/2018
August 21, 2018	8/31/2018	0.540		584		9/14/2018
May 23, 2018	6/4/2018	0.540		588		6/15/2018
February 21, 2018	3/5/2018	0.540		586		3/16/2018
November 14, 2017	11/27/2017	0.540		577		12/11/2017
August 22, 2017	9/5/2017	0.540		296		9/15/2017
May 24, 2017	6/5/2017	0.540		297		6/16/2017
February 21, 2017	3/3/2017	0.540		295		3/17/2017