Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Assets
Investments	$ 760	$ 569
Publicly traded equity securities	1,585	1,284
Derivative assets	259	433
Liabilities
Contingent consideration	353	456	$ 572	$ 777
Derivative liabilities	284	409
Commercial paper
Assets
Investments	663	498
U.S. government and agency securities
Assets
Investments	92	68
Foreign government bonds
Assets
Investments	1	0
Corporate notes and bonds
Assets
Investments	4	3
Fair Value, Measurements, Recurring
Assets
Investments	1,970	1,513
Other assets	375	340
Derivative assets	259	433
Total assets	2,604	2,286
Liabilities
Contingent consideration	353	456
Derivative liabilities	284	409
Total liabilities	637	865
Fair Value, Measurements, Recurring | Currency options
Assets
Derivative assets	139	215
Liabilities
Derivative liabilities	7	7
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets
Derivative assets	119	218
Liabilities
Derivative liabilities	276	402
Fair Value, Measurements, Recurring | Interest rate swap contracts
Assets
Derivative assets	1	0
Liabilities
Derivative liabilities	1	0
Fair Value, Measurements, Recurring | Level 1
Assets
Investments	1,284	1,015
Other assets	375	340
Derivative assets	0	0
Total assets	1,659	1,355
Liabilities
Contingent consideration	0	0
Derivative liabilities	0	0
Total liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | Currency options
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | Foreign exchange contracts
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 1 | Interest rate swap contracts
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 2
Assets
Investments	686	498
Other assets	0	0
Derivative assets	259	433
Total assets	945	931
Liabilities
Contingent consideration	0	0
Derivative liabilities	284	409
Total liabilities	284	409
Fair Value, Measurements, Recurring | Level 2 | Currency options
Assets
Derivative assets	139	215
Liabilities
Derivative liabilities	7	7
Fair Value, Measurements, Recurring | Level 2 | Foreign exchange contracts
Assets
Derivative assets	119	218
Liabilities
Derivative liabilities	276	402
Fair Value, Measurements, Recurring | Level 2 | Interest rate swap contracts
Assets
Derivative assets	1	0
Liabilities
Derivative liabilities	1	0
Fair Value, Measurements, Recurring | Level 3
Assets
Investments	0	0
Other assets	0	0
Derivative assets	0	0
Total assets	0	0
Liabilities
Contingent consideration	353	456
Derivative liabilities	0	0
Total liabilities	353	456
Fair Value, Measurements, Recurring | Level 3 | Currency options
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | Foreign exchange contracts
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 3 | Interest rate swap contracts
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Commercial paper
Assets
Investments	663	498
Fair Value, Measurements, Recurring | Commercial paper | Level 1
Assets
Investments	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 2
Assets
Investments	663	498
Fair Value, Measurements, Recurring | Commercial paper | Level 3
Assets
Investments	0	0
Fair Value, Measurements, Recurring | U.S. government and agency securities
Assets
Investments	22	0
Other assets	70	68
Fair Value, Measurements, Recurring | U.S. government and agency securities | Level 1
Assets
Investments	0	0
Other assets	70	68
Fair Value, Measurements, Recurring | U.S. government and agency securities | Level 2
Assets
Investments	22	0
Other assets	0	0
Fair Value, Measurements, Recurring | U.S. government and agency securities | Level 3
Assets
Investments	0	0
Other assets	0	0
Fair Value, Measurements, Recurring | Foreign government bonds
Assets
Investments	1	0
Fair Value, Measurements, Recurring | Foreign government bonds | Level 1
Assets
Investments	0	0
Fair Value, Measurements, Recurring | Foreign government bonds | Level 2
Assets
Investments	1	0
Fair Value, Measurements, Recurring | Foreign government bonds | Level 3
Assets
Investments	0	0
Fair Value, Measurements, Recurring | Publicly traded equity securities
Assets
Publicly traded equity securities	1,284	1,015
Other assets	301	269
Fair Value, Measurements, Recurring | Publicly traded equity securities | Level 1
Assets
Publicly traded equity securities	1,284	1,015
Other assets	301	269
Fair Value, Measurements, Recurring | Publicly traded equity securities | Level 2
Assets
Publicly traded equity securities	0	0
Other assets	0	0
Fair Value, Measurements, Recurring | Publicly traded equity securities | Level 3
Assets
Publicly traded equity securities	0	0
Other assets	0	0
Fair Value, Measurements, Recurring | Corporate notes and bonds
Assets
Other assets	4	3
Fair Value, Measurements, Recurring | Corporate notes and bonds | Level 1
Assets
Other assets	4	3
Fair Value, Measurements, Recurring | Corporate notes and bonds | Level 2
Assets
Other assets	0	0
Fair Value, Measurements, Recurring | Corporate notes and bonds | Level 3
Assets
Other assets	$ 0	$ 0