Debt - Summary of Outstanding Debt (Details) € in Millions, $ in Millions	1 Months Ended	3 Months Ended		12 Months Ended
	Feb. 28, 2025 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Feb. 28, 2025 EUR (€)
SHORT-TERM
Commercial paper		$ 4,177		$ 3,964
Other bank borrowings (primarily non U.S.)		288		259
Total short-term debt		4,465		4,223
LONG-TERM
Carrying value of long-term debt portfolio		19,432		17,400
Less: current portion of long-term debt		(1,824)		(2,057)
Total long-term debt		17,608		15,343
Total debt		23,897		21,623
Repayments of notes		1,012	$ 610
Derivatives Designated as Hedging Instruments - Fair Value | Interest rate swaps | Designated as Hedging Instrument
LONG-TERM
Fair value increase		$ 31		32
4.700% Notes Due 2025
LONG-TERM
Interest rate		4.70%			4.70%
Carrying value of long-term debt portfolio		$ 0		599
Repayments of notes	$ 600
2.65% Notes due 2025
LONG-TERM
Interest rate		2.65%			2.65%
Carrying value of long-term debt portfolio		$ 0		400
Repayments of notes	$ 400
1.625% Euro denominated notes due 2025
LONG-TERM
Interest rate		1.625%
Carrying value of long-term debt portfolio		$ 540		517
3.625% Euro denominated notes due 2025
LONG-TERM
Interest rate		3.625%
Carrying value of long-term debt portfolio		$ 541		517
0.00% Euro denominated notes due 2026
LONG-TERM
Interest rate		0.00%
Carrying value of long-term debt portfolio		$ 758		726
3.20% Notes due 2026
LONG-TERM
Interest rate		3.20%
Carrying value of long-term debt portfolio		$ 725		725
3.434% Notes due 2026
LONG-TERM
Interest rate		3.434%
Carrying value of long-term debt portfolio		$ 199		199
1.652% Euro denominated notes due 2027
LONG-TERM
Interest rate		1.652%
Carrying value of long-term debt portfolio		$ 88		84
0.25% Euro denominated notes due 2027
LONG-TERM
Interest rate		0.25%
Carrying value of long-term debt portfolio		$ 810		776
1.00% Euro denominated notes due 2027
LONG-TERM
Interest rate		1.00%
Carrying value of long-term debt portfolio		$ 543		519
1.00% Euro denominated notes due 2028 (b)
LONG-TERM
Interest rate		1.00%
Carrying value of long-term debt portfolio		$ 778		742
3.00% Euro denominated notes due 2028
LONG-TERM
Interest rate		3.00%
Carrying value of long-term debt portfolio		$ 755		722
3.375% Euro denominated notes due 2029
LONG-TERM
Interest rate		3.375%
Carrying value of long-term debt portfolio		$ 808		773
2.625% Euro denominated notes Due 2029
LONG-TERM
Interest rate		2.625%			2.625%
Carrying value of long-term debt portfolio		$ 914		0
Face amount of notes issued | €					€ 850
1.10% Notes due 2030
LONG-TERM
Interest rate		1.10%
Carrying value of long-term debt portfolio		$ 697		697
1.90% Euro denominated notes due 2030
LONG-TERM
Interest rate		1.90%
Carrying value of long-term debt portfolio		$ 111		106
3.375% Euro denominated notes due 2030
LONG-TERM
Interest rate		3.375%
Carrying value of long-term debt portfolio		$ 807		772
1.375% Euro denominated notes due 2031
LONG-TERM
Interest rate		1.375%
Carrying value of long-term debt portfolio		$ 814		779
3.20% Euro denominated notes due 2031
LONG-TERM
Interest rate		3.20%
Carrying value of long-term debt portfolio		$ 917		878
0.550% Euro denominated notes due 2032
LONG-TERM
Interest rate		0.55%
Carrying value of long-term debt portfolio		$ 807		772
0.375% Euro denominated notes due 2033
LONG-TERM
Interest rate		0.375%
Carrying value of long-term debt portfolio		$ 536		512
3.00% Euro denominated notes due 2033
LONG-TERM
Interest rate		3.00%			3.00%
Carrying value of long-term debt portfolio		$ 805		0
Face amount of notes issued | €					€ 750
3.625% Euro denominated notes due 2034
LONG-TERM
Interest rate		3.625%
Carrying value of long-term debt portfolio		$ 700		670
3.50% Euro denominated notes due 2034
LONG-TERM
Interest rate		3.50%
Carrying value of long-term debt portfolio		$ 804		769
1.625% Euro denominated notes due 2035
LONG-TERM
Interest rate		1.625%
Carrying value of long-term debt portfolio		$ 859		822
3.40% Euro denominated notes due 2036
LONG-TERM
Interest rate		3.40%
Carrying value of long-term debt portfolio		$ 750		718
3.25% Euro denominated notes due 2037
LONG-TERM
Interest rate		3.25%			3.25%
Carrying value of long-term debt portfolio		$ 695		0
Face amount of notes issued | €					€ 650
3.55% Notes due 2042
LONG-TERM
Interest rate		3.55%
Carrying value of long-term debt portfolio		$ 666		666
3.75% Euro denominated notes due 2044
LONG-TERM
Interest rate		3.75%
Carrying value of long-term debt portfolio		$ 745		712
2.00% Notes due 2050
LONG-TERM
Interest rate		2.00%
Carrying value of long-term debt portfolio		$ 297		297
1.00% Euro denominated notes due 2051
LONG-TERM
Interest rate		1.00%
Carrying value of long-term debt portfolio		$ 740		707
Non U.S. borrowings
LONG-TERM
Carrying value of long-term debt portfolio		213		214
Other
LONG-TERM
Carrying value of long-term debt portfolio		$ 10		$ 10