7. Customer Deposits

As of June 30, 2018 and December 31, 2017, customer deposits were categorized as interest bearing or non-interest bearing as follows:

(Millions)		2018		2017
U.S.:
	Interest bearing	$	66,636	$	63,666
	Non-interest bearing (includes Card Member credit balances of: 2018, $323 million; 2017, $358 million)		358		395
Non-U.S.:
	Interest bearing		35		34
	Non-interest bearing (includes Card Member credit balances of: 2018, $350 million; 2017, $344 million)		362		357
Total customer deposits		$	67,391	$	64,452

Customer deposits by deposit type as of June 30, 2018 and December 31, 2017 were as follows:

(Millions)			2018		2017
U.S. retail deposits:
	Savings accounts – Direct		$	35,336	$	31,915
	Certificates of deposit:^(a)
		Direct		374		290
		Third-party (brokered)		16,308		16,684
	Sweep accounts – Third-party (brokered)			14,618		14,777
Other deposits:
	U.S. non-interest bearing deposits			35		37
	Non-U.S. deposits			47		47
Card Member credit balances ― U.S. and non-U.S.				673		702
Total customer deposits			$	67,391	$	64,452

The weighted average remaining maturity and weighted average interest rate at issuance on the total portfolio of U.S. retail certificates of deposit issued through direct and third-party programs were 45 months and 2.22 percent, respectively, as of June 30, 2018.

The scheduled maturities of certificates of deposit as of June 30, 2018 were as follows:

(Millions)	U.S.		Non-U.S.		Total
2018	$	4,282	$	12	$	4,294
2019		4,657		10		4,667
2020		3,755		―		3,755
2021		1,654		―		1,654
2022		2,212		―		2,212
After 5 years		122		―		122
Total	$	16,682	$	22	$	16,704

As of June 30, 2018 and December 31, 2017, certificates of deposit in denominations of $250,000 or more, in the aggregate, were as follows:

(Millions)	2018		2017
U.S.	$	146	$	114
Non-U.S.		12		11
Total	$	158	$	125