Consolidated Statement of Cash Flows (unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Operating activities
Net income		$ 648	$ 1,137
Reconciliation of net income to net cash provided by operating activities
Depreciation and amortization		613	666
Provision for credit losses		873	471
Gain on mortgage and automotive loans, net		(9)	(18)
Other (gain) loss on investments, net		(100)	119
Originations and purchases of loans held-for-sale		(1,327)	(2,484)
Proceeds from sales and repayments of loans held-for-sale		1,660	2,277
Net change in
Deferred income taxes		53	331
Interest payable		547	60
Other assets		30	912
Other liabilities		(42)	(19)
Other, net		74	20
Net cash provided by operating activities		3,020	3,472
Investing activities
Purchases of equity securities		(102)	(499)
Proceeds from sales of equity securities		127	720
Purchases of available-for-sale securities		(285)	(5,495)
Proceeds from sales of available-for-sale securities		333	716
Proceeds from repayments of available-for-sale securities		1,024	2,675
Purchases of held-to-maturity securities		0	(47)
Proceeds from repayments of held-to-maturity securities		32	105
Purchases of finance receivables and loans held-for-investment		(2,035)	(3,838)
Proceeds from sales of finance receivables and loans initially held-for-investment		9	3
Originations and repayments of finance receivables and loans held-for-investment and other, net		(1,368)	(3,141)
Purchases of operating lease assets		(1,501)	(1,799)
Disposals of operating lease assets		1,580	1,716
Net change in nonmarketable equity investments		(39)	(246)
Other, net		(255)	(305)
Net cash used in investing activities		(2,480)	(9,435)
Financing activities
Net change in short-term borrowings		(205)	7,775
Net increase (decrease) in deposits		2,003	(1,159)
Proceeds from issuance of long-term debt		4,051	4,216
Repayments of long-term debt		(1,704)	(4,292)
Purchases of land and buildings in satisfaction of finance lease liabilities		0	(44)
Repurchases of common stock		(29)	(1,184)
Common stock dividends paid		(187)	(203)
Preferred stock dividends paid		(56)	(56)
Net cash provided by financing activities		3,873	5,053
Effect of exchange-rate changes on cash and cash equivalents and restricted cash		3	(1)
Net increase (decrease) in cash and cash equivalents and restricted cash		4,416	(911)
Cash and cash equivalents and restricted cash at beginning of year		6,222	5,670
Cash and cash equivalents and restricted cash at June 30,		10,638	4,759
Cash paid (received) for
Interest		2,548	772
Income taxes		(71)	(429)
Noncash items
Loans held-for-sale transferred to finance receivables and loans held-for-investment		208	25
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents on the Condensed Consolidated Balance Sheet		9,972	4,167
Restricted cash included in other assets on the Condensed Consolidated Balance Sheet	[1]	666	592
Total cash and cash equivalents and restricted cash in the Condensed Consolidated Statement of Cash Flows		$ 10,638	$ 4,759

[1] Restricted cash balances relate primarily to our securitization arrangements. Refer to Note 10 for additional details describing the nature of restricted cash balances.