Customer Deposits (Details 2) $ in Millions	Jun. 30, 2020 USD ($)
Time Deposits By Maturity
2020	$ 2,690
2021	3,740
2022	2,986
2023	642
2024	272
After 5 years	200
Total	10,530
United States [Member]
Time Deposits By Maturity
2020	2,685
2021	3,735
2022	2,986
2023	642
2024	272
After 5 years	200
Total	10,520
Non-US [Member]
Time Deposits By Maturity
2020	5
2021	5
2022	0
2023	0
2024	0
After 5 years	0
Total	$ 10

Amount of time deposit maturing after fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit maturing in remainder of current fiscal year. Time deposit includes, but is not limited to, certificate of deposit.

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Amount of time deposit maturing in fifth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit maturing in fourth fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit maturing in third fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit maturing in second fiscal year following current fiscal year. Time deposit includes, but is not limited to, certificate of deposit. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of time deposit liabilities, including certificates of deposit.

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