Hedging Activities and Fair Value Measurements - Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of contingent consideration	$ 378	$ 171
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value	459	120
Equity Securities, FV-NI	17	19
Derivative Asset	125	384
Licensing arrangements, asset	3	24
Assets, Fair Value Disclosure	604	547
Derivative Liability	1,327	990
Fair value of contingent consideration	378	171
Licensing arrangements, liability	7	33
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1,712	1,194
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value	459	120
Equity Securities, FV-NI	17	19
Derivative Asset	0	0
Licensing arrangements, asset	0	0
Assets, Fair Value Disclosure	476	139
Derivative Liability	0	0
Fair value of contingent consideration	0	0
Licensing arrangements, liability	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value	0	0
Equity Securities, FV-NI	0	0
Derivative Asset	125	384
Licensing arrangements, asset	0	0
Assets, Fair Value Disclosure	125	384
Derivative Liability	1,327	990
Fair value of contingent consideration	0	0
Licensing arrangements, liability	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1,327	990
Fair Value, Inputs, Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value	0	0
Equity Securities, FV-NI	0	0
Derivative Asset	0	0
Licensing arrangements, asset	3	24
Assets, Fair Value Disclosure	3	24
Derivative Liability	0	0
Fair value of contingent consideration	378	171
Licensing arrangements, liability	7	33
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 385	$ 203