Taxes on Income (Temporary Differences That Created Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Net unrealized loss on available for sale securities	$ 347	$ 0
Employee compensation, severance, and benefits	237	271
Operating lease liabilities	225	249
Reserves and allowances	74	70
Debt fair value remeasurement	47	67
State and local taxes	40	37
Net operating loss carryforwards	8	8
Total deferred tax assets	978	702
Valuation allowance	(8)	(8)
Deferred tax assets — net of valuation allowance	970	694
Deferred tax liabilities:
Amortization of acquired intangible assets	(1,888)	(1,954)
Net unrealized gain on available for sale securities	0	(1,686)
Operating lease ROU assets	(210)	(233)
Capitalized internal-use software development costs	(142)	(101)
Other	(212)	(182)
Total deferred tax liabilities	(2,452)	(4,156)
Deferred tax asset/(liability) — net	$ (1,482)	$ (3,462)