CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Revenue	$ 7,061	$ 6,473
Expense:
Compensation and benefits	3,850	3,470
Other operating expenses	1,206	1,078
Operating expenses	5,056	4,548
Operating income	2,005	1,925
Other net benefit credits	43	67
Interest income	19	37
Interest expense	(245)	(159)
Investment income	5	1
Income before income taxes	1,827	1,871
Income tax expense	415	447
Net income before non-controlling interests	1,412	1,424
Less: Net income attributable to non-controlling interests	31	24
Net income attributable to the Company	$ 1,381	$ 1,400
Net income per share attributable to the Company:
Basic (in dollars per share)	$ 2.81	$ 2.84
Diluted (in dollars per share)	$ 2.79	$ 2.82
Average number of shares outstanding:
Basic (in shares)	492	492
Diluted (in shares)	495	497
Shares outstanding (in shares)	493	493