Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Net Revenue	$ 8,398	$ 7,250
Operating Expenses:
General and administrative	3,039	2,523
Advertising and marketing	153	152
Depreciation and amortization	299	275
Provision for litigation	0	151
Total operating expenses	3,491	3,101
Operating income	4,907	4,149
Other Income (Expense):
Investment income	81	88
Gains (losses) on equity investments, net	(66)	(29)
Interest expense	(185)	(182)
Other income (expense), net	75	5
Total other income (expense)	(95)	(118)
Income before income taxes	4,812	4,031
Income tax expense	930	751
Net Income	$ 3,882	$ 3,280
Basic Earnings per Share (in dollars per share)	$ 4.35	$ 3.60
Basic weighted-average shares outstanding (in shares)	891	912
Diluted Earnings per Share (in dollars per share)	$ 4.35	$ 3.59
Diluted weighted-average shares outstanding (in shares)	893	914

Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating Activities
Net income	$ 3,882	$ 3,280
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of customer incentives	620	476
Depreciation and amortization	299	275
(Gains) losses on equity investments, net	66	29
Share-based compensation	136	129
Deferred income taxes	193	37
Other	17	38
Changes in operating assets and liabilities:
Accounts receivable	(110)	(118)
Settlement assets	(437)	(296)
Prepaid expenses	(2,061)	(1,458)
Accrued litigation and legal settlements	(461)	119
Restricted security deposits held for customers	199	26
Accounts payable	14	80
Settlement obligations	135	124
Accrued expenses	39	(784)
Net change in other assets and liabilities	468	423
Net cash provided by operating activities	2,999	2,380
Investing Activities
Purchases of investment securities available-for-sale	(68)	(119)
Purchases of investments held-to-maturity	0	(8)
Proceeds from sales of investment securities available-for-sale	24	49
Proceeds from maturities of investment securities available-for-sale	44	76
Proceeds from maturities of investments held-to-maturity	13	16
Purchases of property and equipment	(154)	(159)
Capitalized software	(181)	(198)
Other investing activities	(40)	3
Net cash used in investing activities	(362)	(340)
Financing Activities
Purchases of treasury stock	(4,035)	(2,549)
Dividends paid	(777)	(694)
Proceeds from debt, net	0	1,242
Payment of debt	0	(750)
Tax withholdings related to share-based payments	(204)	(277)
Cash proceeds from employee stock plans	11	41
Net cash used in financing activities	(5,005)	(2,987)
Effect of exchange rate changes on cash, cash equivalents, restricted cash and restricted cash equivalents	(116)	121
Net decrease in cash, cash equivalents, restricted cash and restricted cash equivalents	(2,484)	(826)
Cash, cash equivalents, restricted cash and restricted cash equivalents - beginning of period	13,248	10,808
Cash, cash equivalents, restricted cash and restricted cash equivalents - end of period	$ 10,764	$ 9,982

Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 7,906	$ 10,566
Restricted cash and restricted cash equivalents	551	561
Restricted security deposits held for customers	2,307	2,121
Investments	313	332
Accounts receivable	4,720	4,609
Settlement assets	2,062	1,626
Prepaid expenses and other current assets	4,639	3,743
Total current assets	22,498	23,558
Property, equipment and right-of-use assets, net of accumulated depreciation and amortization of $2,818 and $2,756, respectively	2,349	2,303
Deferred income taxes	1,396	1,567
Goodwill	9,525	9,560
Other intangible assets, net of accumulated amortization of $3,242 and $3,096, respectively	5,495	5,554
Other assets	11,186	11,615
Total Assets	52,449	54,157
Current liabilities:
Accounts payable	1,030	999
Settlement obligations	2,544	2,409
Restricted security deposits held for customers	2,307	2,121
Accrued litigation	339	800
Accrued expenses	12,327	13,272
Short-term debt	1,748	749
Other current liabilities	2,639	2,412
Total current liabilities	22,934	22,762
Long-term debt	17,212	18,251
Deferred income taxes	331	307
Other liabilities	5,250	5,091
Total Liabilities	45,727	46,411
Commitments and Contingencies
Stockholders’ Equity
Additional paid-in-capital	6,843	6,907
Class A treasury stock, at cost, 526 and 518 shares, respectively	(87,342)	(83,224)
Retained earnings	88,146	85,035
Accumulated other comprehensive income (loss)	(928)	(981)
Mastercard Incorporated Stockholders' Equity	6,719	7,737
Non-controlling interests	3	9
Total Equity	6,722	7,746
Total Liabilities and Equity	52,449	54,157
Class A Common Stock
Stockholders’ Equity
Common stock	0	0
Class B Common Stock
Stockholders’ Equity
Common stock	$ 0	$ 0