Debt - Schedule of Senior Unsecured Notes (Details) € in Millions, £ in Millions, $ in Millions	Jun. 30, 2026 USD ($)	Jun. 30, 2026 EUR (€)	Jun. 30, 2026 GBP (£)	Dec. 31, 2025 USD ($)	Dec. 31, 2025 EUR (€)
Debt Instrument [Line Items]
Long-term debt, gross	$ 6,249			$ 6,140
Senior Notes \| 5.25% Senior Notes Due July 2030
Debt Instrument [Line Items]
Interest Rate				5.25%	5.25%
Senior Notes \| 4.125% Senior Notes Due November 2031
Debt Instrument [Line Items]
Interest Rate				4.125%	4.125%
Unsecured Debt \| 2.22% Senior Notes Due August 2026
Debt Instrument [Line Items]
Borrowing Currency Amount	$ 300
Interest Rate	2.22%	2.22%	2.22%
Long-term debt, gross	$ 300			$ 300
Unsecured Debt \| 2.52% Senior Notes Due August 2028
Debt Instrument [Line Items]
Borrowing Currency Amount	$ 375
Interest Rate	2.52%	2.52%	2.52%
Long-term debt, gross	$ 375			375
Unsecured Debt \| 0.89% Senior Notes Due August 2026
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 128
Interest Rate	0.89%	0.89%	0.89%
Long-term debt, gross	$ 146			151
Unsecured Debt \| 1.26% Senior Notes Due August 2031
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 251
Interest Rate	1.26%	1.26%	1.26%
Long-term debt, gross	$ 286			295
Unsecured Debt \| 1.98% Senior Notes Due August 2026
Debt Instrument [Line Items]
Borrowing Currency Amount \| £			£ 145
Interest Rate	1.98%	1.98%	1.98%
Long-term debt, gross	$ 192			196
Unsecured Debt \| 2.13% Senior Notes Due August 2028
Debt Instrument [Line Items]
Borrowing Currency Amount \| £			£ 130
Interest Rate	2.13%	2.13%	2.13%
Long-term debt, gross	$ 172			175
Unsecured Debt \| 3.33% Senior Notes Due August 2027
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 80
Interest Rate	3.33%	3.33%	3.33%
Long-term debt, gross	$ 91			94
Unsecured Debt \| 3.54% Senior Notes Due August 2029
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 110
Interest Rate	3.54%	3.54%	3.54%
Long-term debt, gross	$ 126			129
Unsecured Debt \| 3.74% Senior Notes Due August 2032
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 50
Interest Rate	3.74%	3.74%	3.74%
Long-term debt, gross	$ 57			59
Unsecured Debt \| New senior unsecured notes
Debt Instrument [Line Items]
Long-term debt, gross	1,298			1,323
Unsecured Debt \| 5.25% Senior Notes Due July 2030
Debt Instrument [Line Items]
Borrowing Currency Amount	$ 500
Interest Rate	5.25%	5.25%	5.25%
Long-term debt, gross	$ 500			$ 500
Unsecured Debt \| 4.125% Senior Notes Due November 2031
Debt Instrument [Line Items]
Borrowing Currency Amount \| €		€ 700
Interest Rate	4.125%	4.125%	4.125%
Long-term debt, gross \| €		€ 798			€ 823