Debt (Tables)

3 Months Ended

Mar. 31, 2015

Debt Disclosure [Abstract]

Long-term Debt

Our long-term debt as of March 31, 2015 was as follows (dollars in millions):

Senior Notes	Issued at Discount to Par		Carrying Value
$2.5 billion 1.875% Notes due 2018	99.943	%	$	2,499
$2.0 billion 2.650% Notes due 2020	99.760	%	1,996
$1.0 billion 3.375% Notes due 2023	99.925	%	1,000
			$	5,495