Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalent

6 Months Ended

Mar. 31, 2019

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]

Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents

Note 3—Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents

The Company’s cash and cash equivalents include cash and certain highly liquid investments with original maturities of 90 days or less from the date of purchase. Cash equivalents are primarily recorded at cost, which approximates fair value due to their generally short maturities. The Company defines restricted cash and restricted cash equivalents as cash and cash equivalents that cannot be withdrawn or used for general operating activities.

The Company reconciles cash, cash equivalents, restricted cash and restricted cash equivalents reported in the consolidated balance sheets that aggregate to the beginning and ending balances shown in the consolidated statements of cash flows as follows:

	March 31,				September 30,
	2019		2018		2018		2017
	(in millions)
Cash and cash equivalents	$	7,648	$	8,142	$	8,162	$	9,874
Restricted cash and restricted cash equivalents:
U.S. litigation escrow	899		884		1,491		1,031
Customer collateral	1,735		1,250		1,324		1,106
Cash, cash equivalents, restricted cash and restricted cash equivalents	$	10,282	$	10,276	$	10,977	$	12,011