Financial Assets & Liabilities - Fair Value Measurements (Details) - USD ($) $ in Millions	Mar. 31, 2024	Jan. 31, 2024	Dec. 31, 2023
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - current	$ 4,512		$ 373
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
Foreign Exchange Call Option
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivatives not designated as hedging - Assets	12		62
Fair Value, Recurring
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	7,719		7,699
Total assets	12,686		8,446
Total liabilities	564		593
Fair Value, Recurring | Prepaid Expenses and Other Current Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	328		304
Fair Value, Recurring | Other Noncurrent Assets
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative assets	12		37
Fair Value, Recurring | Other Current Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	95		294
Fair Value, Recurring | Other Noncurrent Liabilities
Financial assets and financial liabilities measured at fair value on a recurring basis:
Derivative liabilities	469		299
Fair Value, Recurring | Level 1
Financial assets and financial liabilities measured at fair value on a recurring basis:
Equity investments	7		25
Fair Value, Recurring | Level 1 | Money market funds
Financial assets and financial liabilities measured at fair value on a recurring basis:
Cash equivalents	487		494
Fair Value, Recurring | Level 2
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - current	4,512		373
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	0		2
Derivatives designated as hedging - Liabilities	436		299
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	263		131
Derivatives designated as hedging - Liabilities	102		275
Derivatives not designated as hedging - Assets	23		115
Derivatives not designated as hedging - Liabilities	25		19
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	55		93
Derivatives not designated as hedging - Liabilities	1		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	7,232		7,206
Fair Value, Recurring | Level 2 And 3
Financial assets and financial liabilities measured at fair value on a recurring basis:
Debt securities - noncurrent	$ 108		$ 8