Financing (Components of Debt) (Details) € in Millions, SFr in Millions, $ in Millions, ¥ in Billions	Dec. 31, 2025 USD ($)	Dec. 31, 2025 EUR (€)	Dec. 31, 2025 CHF (SFr)	Dec. 31, 2025 JPY (¥)	Oct. 10, 2025 CHF (SFr)	Sep. 15, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2024 CHF (SFr)	Dec. 31, 2024 JPY (¥)
Debt Instrument [Line Items]
Total debt	$ 18,418						$ 16,005
Less: currently payable	(2)						(505)
Long-term debt	18,416						15,500
Debt instrument, face amount | SFr					SFr 1,250
Euro-denominated commercial paper | Commercial paper
Debt Instrument [Line Items]
Total debt	1,097	€ 933					965	€ 931
3.35% senior unsecured notes due 2025 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 0						$ 500
Interest rate of debt instrument	3.35%	3.35%	3.35%	3.35%			3.35%	3.35%	3.35%	3.35%
Debt instrument, face amount	$ 500					$ 500	$ 500
0.2% senior unsecured notes due 2026 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,469						$ 1,293
Interest rate of debt instrument	0.20%	0.20%	0.20%	0.20%			0.20%	0.20%	0.20%	0.20%
Debt instrument, face amount | €		€ 1,300						€ 1,300
2.1% senior notes due 2026 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 940						$ 828
Interest rate of debt instrument	2.10%	2.10%	2.10%	2.10%			2.10%	2.10%	2.10%	2.10%
Debt instrument, face amount | €		€ 800						€ 800
0.4773% 2027 CHF Bonds | Bonds
Debt Instrument [Line Items]
Total debt	$ 315						$ 0
Interest rate of debt instrument	0.4773%	0.4773%	0.4773%	0.4773%	0.4773%		0.4773%	0.4773%	0.4773%	0.4773%
Debt instrument, face amount | SFr			SFr 250		SFr 250				SFr 250
0.3% senior unsecured notes due 2027 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 196						$ 195
Interest rate of debt instrument	0.30%	0.30%	0.30%	0.30%			0.30%	0.30%	0.30%	0.30%
Debt instrument, face amount | ¥				¥ 30.8						¥ 30.8
1.2% senior unsecured notes due 2027 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 704						$ 620
Interest rate of debt instrument	1.20%	1.20%	1.20%	1.20%			1.20%	1.20%	1.20%	1.20%
Debt instrument, face amount | €		€ 600						€ 600
0.45% senior unsecured notes due 2028 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,466						$ 1,291
Interest rate of debt instrument	0.45%	0.45%	0.45%	0.45%			0.45%	0.45%	0.45%	0.45%
Debt instrument, face amount | €		€ 1,300						€ 1,300
1.125% senior unsecured bonds due 2028 | Bonds
Debt Instrument [Line Items]
Total debt	$ 267						$ 233
Interest rate of debt instrument	1.125%	1.125%	1.125%	1.125%			1.125%	1.125%	1.125%	1.125%
Debt instrument, face amount | SFr			SFr 210						SFr 210
0.88755 2029 CHF Bonds | Bonds
Debt Instrument [Line Items]
Total debt	$ 409						$ 0
Interest rate of debt instrument	0.8875%	0.8875%	0.8875%	0.8875%	0.8875%		0.8875%	0.8875%	0.8875%	0.8875%
Debt instrument, face amount | SFr			SFr 325		SFr 325				SFr 325
2.6% senior unsecured notes due 2029 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 798						$ 797
Interest rate of debt instrument	2.60%	2.60%	2.60%	2.60%			2.60%	2.60%	2.60%	2.60%
Debt instrument, face amount	$ 800						$ 800
2.5% senior notes due 2030 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 940						$ 829
Interest rate of debt instrument	2.50%	2.50%	2.50%	2.50%			2.50%	2.50%	2.50%	2.50%
Debt instrument, face amount | €		€ 800						€ 800
0.75% senior unsecured notes due 2031 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 2,050						$ 1,805
Interest rate of debt instrument	0.75%	0.75%	0.75%	0.75%			0.75%	0.75%	0.75%	0.75%
Debt instrument, face amount | €		€ 1,800						€ 1,800
0.65% senior unsecured notes due 2032 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 339						$ 337
Interest rate of debt instrument	0.65%	0.65%	0.65%	0.65%			0.65%	0.65%	0.65%	0.65%
Debt instrument, face amount | ¥				¥ 53.2						¥ 53.2
1.265% 2033 CHF Bonds | Bonds
Debt Instrument [Line Items]
Total debt	$ 408						$ 0
Interest rate of debt instrument	1.265%	1.265%	1.265%	1.265%	1.265%		1.265%	1.265%	1.265%	1.265%
Debt instrument, face amount | SFr			SFr 325		SFr 325				SFr 325
1.6249% 2037 CHF Bonds | Bonds
Debt Instrument [Line Items]
Total debt	$ 282						$ 0
Interest rate of debt instrument	1.6249%	1.6249%	1.6249%	1.6249%	1.6249%		1.6249%	1.6249%	1.6249%	1.6249%
Debt instrument, face amount | SFr			SFr 225		SFr 225				SFr 225
1.35% senior unsecured notes due 2039 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 1,456						$ 1,282
Interest rate of debt instrument	1.35%	1.35%	1.35%	1.35%			1.35%	1.35%	1.35%	1.35%
Debt instrument, face amount | €		€ 1,300						€ 1,300
3.25% senior unsecured notes due 2039 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 892						$ 892
Interest rate of debt instrument	3.25%	3.25%	3.25%	3.25%			3.25%	3.25%	3.25%	3.25%
Debt instrument, face amount	$ 900						$ 900
4.375% senior unsecured notes due 2045 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 500						$ 499
Interest rate of debt instrument	4.375%	4.375%	4.375%	4.375%			4.375%	4.375%	4.375%	4.375%
Debt instrument, face amount	$ 500						$ 500
1.94% 2045 CHF Bonds | Bonds
Debt Instrument [Line Items]
Total debt	$ 157						$ 0
Interest rate of debt instrument	1.94%	1.94%	1.94%	1.94%	1.94%		1.94%	1.94%	1.94%	1.94%
Debt instrument, face amount | SFr			SFr 125		SFr 125				SFr 125
1.8% senior unsecured notes due 2049 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 873						$ 769
Interest rate of debt instrument	1.80%	1.80%	1.80%	1.80%			1.80%	1.80%	1.80%	1.80%
Debt instrument, face amount | €		€ 750						€ 750
3.4% senior unsecured notes due 2049 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 891						$ 890
Interest rate of debt instrument	3.40%	3.40%	3.40%	3.40%			3.40%	3.40%	3.40%	3.40%
Debt instrument, face amount	$ 900						$ 900
2.6% senior unsecured notes due 2050 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 983						$ 982
Interest rate of debt instrument	2.60%	2.60%	2.60%	2.60%			2.60%	2.60%	2.60%	2.60%
Debt instrument, face amount	$ 1,000						$ 1,000
2.8% senior unsecured notes due 2051 | Senior notes
Debt Instrument [Line Items]
Total debt	$ 985						$ 985
Interest rate of debt instrument	2.80%	2.80%	2.80%	2.80%			2.80%	2.80%	2.80%	2.80%
Debt instrument, face amount	$ 1,000						$ 1,000
Other
Debt Instrument [Line Items]
Total debt	$ 1						$ 13