DISCONTINUED OPERATIONS, SIGNIFICANT DISPOSALS AND OTHER BUSINESS EXITS - Income before Taxes, Assets and Liabilities Held-for-Sale (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jun. 01, 2022	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Discontinued Operations, Disposed of by Sale | Legacy Franchises
Results of Discontinued Operations
Loss on sale of business, foreign currency translation adjustments		$ 400
Loss on sale of business, foreign currency translation adjustments, after-tax		345
Australia
Results of Discontinued Operations
Income (loss) before taxes		28	$ 69	$ 193	$ 142
Australia | Discontinued Operations, Held-for-sale
Assets
Cash and deposits with banks		0		0
Loans		0		0
Goodwill		0		0
Other assets, advances to/from subsidiaries		0		0
Other assets		0		0
Total assets		0		0
Liabilities
Deposits		0		0
Long-term debt		0		0
Other liabilities		0		0
Total liabilities		0		0
Results of Discontinued Operations
Loss on sale of business, foreign currency translation adjustments				620
Loss on sale of business, foreign currency translation adjustments, after-tax				470
Australia | Discontinued Operations, Disposed of by Sale
Assets
Loans	$ 9,300
Total assets	9,400
Liabilities
Deposits	6,800
Total liabilities	7,300
Results of Discontinued Operations
Allowance	140
Pretax loss on sale of business	800
Loss on sale of business, after-tax	665
Loss on sale of business, foreign currency translation adjustments	620
Loss on sale of business, foreign currency translation adjustments, after-tax	$ 470
Philippines
Results of Discontinued Operations
Income (loss) before taxes		14	31	65	67
Philippines | Discontinued Operations, Held-for-sale
Assets
Cash and deposits with banks		31		31
Loans		1,170		1,170
Goodwill		244		244
Other assets, advances to/from subsidiaries		511		511
Other assets		37		37
Total assets		1,993		1,993
Liabilities
Deposits		1,208		1,208
Long-term debt		0		0
Other liabilities		78		78
Total liabilities		1,286		1,286
Results of Discontinued Operations
Allowance		80		80
Thailand
Results of Discontinued Operations
Income (loss) before taxes		90	43	78	91
Thailand | Discontinued Operations, Held-for-sale
Assets
Cash and deposits with banks		15		15
Loans		2,485		2,485
Goodwill		160		160
Other assets, advances to/from subsidiaries		215		215
Other assets		84		84
Total assets		2,959		2,959
Liabilities
Deposits		925		925
Long-term debt		0		0
Other liabilities		133		133
Total liabilities		1,058		1,058
Results of Discontinued Operations
Allowance		80		80
Taiwan
Results of Discontinued Operations
Income (loss) before taxes		50	65	96	150
Taiwan | Discontinued Operations, Held-for-sale
Assets
Cash and deposits with banks		104		104
Loans		7,878		7,878
Goodwill		212		212
Other assets, advances to/from subsidiaries		4,855		4,855
Other assets		199		199
Total assets		13,248		13,248
Liabilities
Deposits		10,350		10,350
Long-term debt		0		0
Other liabilities		214		214
Total liabilities		10,564		10,564
Results of Discontinued Operations
Allowance		57		57
India
Results of Discontinued Operations
Income (loss) before taxes		52	$ 29	125	$ 98
India | Discontinued Operations, Held-for-sale
Assets
Cash and deposits with banks		29		29
Loans		3,515		3,515
Goodwill		346		346
Other assets, advances to/from subsidiaries		2,482		2,482
Other assets		102		102
Total assets		6,474		6,474
Liabilities
Deposits		5,916		5,916
Long-term debt		0		0
Other liabilities		184		184
Total liabilities		6,100		6,100
Results of Discontinued Operations
Allowance		51		$ 51
Egg Banking Business | Discontinued Operations, Disposed of by Sale
Results of Discontinued Operations
Loss on sale of business, foreign currency translation adjustments		260
Loss on sale of business, foreign currency translation adjustments, after-tax		$ 221