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Credit Facilities and Long-Term Debt - Summary of Debt Outstanding (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025	Oct. 11, 2016
Credit Facilities and Long-Term Debt :
Debt issuance costs and unamortized discount	$ (20)	$ (12)
Fair value hedge basis adjustments	(28)	0
Total debt	2,895	1,942
Less: short-term borrowings and current maturities of long-term debt	530	534
Long-term debt, net	$ 2,365	1,408
3.250% Senior Notes Due 2026
Credit Facilities and Long-Term Debt :
Interest rate	3.25%		1.95%
Outstanding balances	$ 500	500
Debt fair value	$ 499	497
Senior Notes Due Twenty Twenty Eight
Credit Facilities and Long-Term Debt :
Interest rate	1.95%
Outstanding balances	$ 500	500
Debt fair value	$ 480	480
Senior Notes Due Twenty Thirty One
Credit Facilities and Long-Term Debt :
Interest rate	2.25%
Outstanding balances	$ 500	500
Debt fair value	$ 438	454
4.375% Senior Notes Due 2046
Credit Facilities and Long-Term Debt :
Interest rate	4.375%		2.25%
Outstanding balances	$ 400	400
Debt fair value	314	340
Equipment Financing \| Secured Debt
Credit Facilities and Long-Term Debt :
Outstanding balances	20	27
Other
Credit Facilities and Long-Term Debt :
Outstanding balances	$ 23	27
5.200% Senior Notes Due 2033
Credit Facilities and Long-Term Debt :
Interest rate	5.20%
Outstanding balances	$ 500	0
5.200% Senior Notes Due 2033 \| Senior Loans
Credit Facilities and Long-Term Debt :
Debt fair value	$ 484
5.450% Senior Notes Due 2036
Credit Facilities and Long-Term Debt :
Interest rate	5.45%
Outstanding balances	$ 500	$ 0
5.450% Senior Notes Due 2036 \| Senior Loans
Credit Facilities and Long-Term Debt :
Debt fair value	$ 483