Cash and Cash Equivalents (Tables)

3 Months Ended

Mar. 31, 2018

Cash and Cash Equivalents [Abstract]

Summary of Cash and Cash Equivalents

(in millions)		March 31, 2018		December 31, 2017
Cash	$	267	$	261
Marketable securities (1)		691		605
Other cash equivalents		–		50	(2)
Total	$	958	$	916

(1) Primarily consists of government stable value money market funds.

(2) Consists of time deposits.