CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) (Parenthetical) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Proceeds from maturities of investments	$ 60,777	[1],[2]
Purchases of investments	123,569	[1],[2]
Transfer of investment securities from HTM to AFS, amortized cost	0	[3],[4],[5]
Other Noncash Income (Expense)	17,434	[1],[2]
Certificates of deposit | Revision of Prior Period, Reclassification, Adjustment One
Proceeds from maturities of investments	(16,100)
Other Noncash Income (Expense)	16,100
Certificates of deposit | Revision of Prior Period, Reclassification, Adjustment Two
Purchases of investments	(41)
Other Noncash Income (Expense)	$ 41

[1] 2022 amounts have been revised to conform to the current-period presentation.

[2] Consistent with the revisions disclosed in “Statement of Cash Flows” in Note 1 to the Consolidated Financial Statements in Citi’s 2022 Form 10-K, during the six months ended June 30, 2022, $16.1 billion of cash flows related to maturities of short-term negotiable certificates of deposit (NCDs) and $41 million of cash flows related to purchases of short-term NCDs were reclassified from purchases and maturities of AFS securities within investing activities to Other, net within operating activities.

[3] Operating and finance lease right-of-use assets and lease liabilities represent non-cash investing and financing activities, respectively, and are not included in the non-cash investing activities presented here. See Note 25 for more information and balances as of June 30, 2023.

[4] See Note 2 for further information on significant disposals.

[5] n January 2023, Citi adopted ASU 2022-01. Upon adoption, Citi transferred $3.3 billion of mortgage-backed securities from HTM classification to AFS classification as allowed under the ASU. At the time of transfer, the securities were in an unrealized gain position of $0.1 billion, which was recorded in AOCI upon transfer. See Note 1.