Hedging Activities and Fair Value Measurements - Fair Value (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 20	$ 107
Licensing arrangements, asset	4	30
Contingent Consideration Liability	171	404
Licensing arrangements, liability	8	41
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money Market Funds, at Carrying Value	1,733	454
Equity Securities, FV-NI	19	18
Derivative Asset	188	266
Licensing arrangements, asset	37	77
Assets, Fair Value Disclosure	1,977	816
Derivative Liability	1,087	1,050
Contingent Consideration Liability	171	404
Licensing arrangements, liability	41	90
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1,300	1,545
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	1,733	454
Equity Securities, FV-NI	19	18
Derivative Asset	0	0
Licensing arrangements, asset	0	0
Assets, Fair Value Disclosure	1,752	472
Derivative Liability	0	0
Contingent Consideration Liability	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	188	266
Licensing arrangements, asset	0	0
Assets, Fair Value Disclosure	188	266
Derivative Liability	1,087	1,050
Contingent Consideration Liability	0	0
Licensing arrangements, liability	0	0
Financial and Nonfinancial Liabilities, Fair Value Disclosure	1,087	1,050
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Licensing arrangements, asset	37
Licensing arrangements, liability	41
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	37	77
Assets, Fair Value Disclosure	37	77
Derivative Liability	0	0
Contingent Consideration Liability	171	404
Licensing arrangements, liability	41	90
Financial and Nonfinancial Liabilities, Fair Value Disclosure	$ 212	$ 494