Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Assets
Investments	$ 821	$ 569
Publicly traded equity securities	1,520	1,284
Derivative assets	465	433
Liabilities
Contingent consideration	349	456	$ 542	$ 777
Derivative liabilities	244	409
Commercial paper
Assets
Investments	561	498
U.S. government and agency securities
Assets
Investments	256	68
Corporate notes and bonds
Assets
Investments	4	3
Fair Value, Measurements, Recurring
Assets
Investments	1,932	1,513
Other assets	409	340
Derivative assets	465	433
Total assets	2,806	2,286
Liabilities
Contingent consideration	349	456
Derivative liabilities	244	409
Total liabilities	593	865
Fair Value, Measurements, Recurring | Foreign exchange contracts
Assets
Derivative assets	316	218
Liabilities
Derivative liabilities	235	402
Fair Value, Measurements, Recurring | Currency options
Assets
Derivative assets	149	215
Liabilities
Derivative liabilities	9	7
Fair Value, Measurements, Recurring | Level 1
Assets
Investments	1,184	1,015
Other assets	409	340
Derivative assets	0	0
Total assets	1,593	1,355
Liabilities
Contingent consideration	0	0
Derivative liabilities	0	0
Total 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 | Currency options
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Level 2
Assets
Investments	748	498
Other assets	0	0
Derivative assets	465	433
Total assets	1,213	931
Liabilities
Contingent consideration	0	0
Derivative liabilities	244	409
Total liabilities	244	409
Fair Value, Measurements, Recurring | Level 2 | Foreign exchange contracts
Assets
Derivative assets	316	218
Liabilities
Derivative liabilities	235	402
Fair Value, Measurements, Recurring | Level 2 | Currency options
Assets
Derivative assets	149	215
Liabilities
Derivative liabilities	9	7
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	349	456
Derivative liabilities	0	0
Total liabilities	349	456
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 | Currency options
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Fair Value, Measurements, Recurring | Commercial paper
Assets
Investments	561	498
Fair Value, Measurements, Recurring | Commercial paper | Level 1
Assets
Investments	0	0
Fair Value, Measurements, Recurring | Commercial paper | Level 2
Assets
Investments	561	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	187	0
Other assets	69	68
Fair Value, Measurements, Recurring | U.S. government and agency securities | Level 1
Assets
Investments	0	0
Other assets	69	68
Fair Value, Measurements, Recurring | U.S. government and agency securities | Level 2
Assets
Investments	187	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 | 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
Fair Value, Measurements, Recurring | Publicly traded equity securities
Assets
Publicly traded equity securities	1,184	1,015
Other assets	336	269
Fair Value, Measurements, Recurring | Publicly traded equity securities | Level 1
Assets
Publicly traded equity securities	1,184	1,015
Other assets	336	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