Financial Assets & Liabilities - Fair Value Measurements (Details) - USD ($)	Sep. 30, 2024	Jan. 31, 2024	Dec. 31, 2023
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - current	$ 505,000,000		$ 373,000,000
Foreign Exchange Call Option
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives not designated as hedging - Assets	0		62,000,000
Discontinued Operations, Disposed of by Sale | The Weather Company
Financial assets and financial liabilities measured at fair value on a recurring basis:
Financing receivable	100,000,000	$ 100,000,000
Fair Value, Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	6,763,000,000		7,699,000,000
Total assets	7,499,000,000		8,446,000,000
Total liabilities	500,000,000		593,000,000
Fair Value, Recurring | Prepaid Expenses and Other Current Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	84,000,000		304,000,000
Fair Value, Recurring | Other Noncurrent Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	41,000,000		37,000,000
Fair Value, Recurring | Other Current Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	248,000,000		294,000,000
Fair Value, Recurring | Other Noncurrent Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	252,000,000		299,000,000
Fair Value, Recurring | Level 1
Financial assets and financial liabilities measured at fair value on a recurring basis:
Equity investments	0		25,000,000
Fair Value, Recurring | Level 1 | Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	432,000,000		494,000,000
Fair Value, Recurring | Level 2
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - current	505,000,000		373,000,000
Fair Value, Recurring | Level 2 | Interest rate contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives designated as hedging - Assets	11,000,000		2,000,000
Derivatives designated as hedging - Liabilities	218,000,000		299,000,000
Fair Value, Recurring | Level 2 | Foreign exchange contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives designated as hedging - Assets	60,000,000		131,000,000
Derivatives designated as hedging - Liabilities	276,000,000		275,000,000
Derivatives not designated as hedging - Assets	17,000,000		115,000,000
Derivatives not designated as hedging - Liabilities	6,000,000		19,000,000
Fair Value, Recurring | Level 2 | Equity contracts
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives not designated as hedging - Assets	37,000,000		93,000,000
Derivatives not designated as hedging - Liabilities	0		0
Fair Value, Recurring | Level 2 | Time deposits and certificates of deposit
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	6,331,000,000		7,206,000,000
Fair Value, Recurring | Level 2 And 3
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - noncurrent	$ 107,000,000		$ 8,000,000