TAXES ON INCOME (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Apr. 01, 2021
Income Tax Contingency [Line Items]
Income (loss) from continuing operations - domestic	$ 2,500	$ 1,900	$ 1,100
Income (loss) from continuing operations - foreign	148	(7)	15
Deferred income tax expense (benefit)	(57)	85	15
Current federal tax expense (benefit)	528	300	176
Current state and local income tax expense	123	74	53
Current foreign income tax expense	3	1	3
Defered federal income tax expense (benefit)	(61)	55	21
Deferred state and local income tax expense (benefit)	5	29	(4)
Deferred foreign income tax expense (benefit)	(1)	1	(2)
Total	$ (597)	$ (460)	$ (247)
Tax provision at statutory rate	21.00%	21.00%	21.00%
State and local income taxes, net of federal benefit	4.10%	4.50%	4.60%
Impact of noncontrolling interests	(0.80%)	(0.90%)	(1.10%)
Excess tax benefits on stock-based compensation arrangements	(0.70%)	(1.20%)	(1.20%)
Return to provision true-ups	(0.80%)	(0.70%)	(1.40%)
Impact of equity earnings	0.60%	0.80%	1.10%
Changes in reserves for uncertain tax positions	0.40%	0.90%	1.70%
Change in valuation allowances associated with certain net operating losses	0.00%	0.20%	(1.10%)
Other, net	(0.80%)	(0.10%)	(0.60%)
Effective tax rate	23.00%	24.50%	23.00%
Accounts receivable reserves	$ 89	$ 71
Liabilities not currently deductible	180	146
Stock-based compensation	32	47
Basis differences in investments, joint ventures and subsidiaries	(12)	(81)
Net operating loss carryfowards, net of valuation allowance	42	61
Operating lease right-of-use assets	(150)	(151)
Operating lease liabilities	162	161
Non-current deferred tax liability - depreciation and amortization	(633)	(604)
Total non-current deferred tax liabilities	(290)	(350)
Operating loss carryforwards	71	94
Deferred tax assets, valuation allowance	29	33
Income tax benefit due to release of valuation allowances associated with net operating loss carryforwards			$ (12)
Income taxes payable	106	135
Prepaid taxes	36	2
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits, beginning balance	93	88	107
Additions for tax positions of current year	1	2	2
Additions for tax positions of prior years	30	25	16
Reductions for changes in judgment	(6)	(9)	(3)
Reductions for expirations of statutes of limitations	(8)	(4)	(2)
Reductions for settlements	0	(9)	(32)
Unrecognized tax benefits, ending balance	110	93	88
Unrecognized tax benefits that would impact effective tax rate	90
Significant change in unrecognized tax benefits is reasonably possible, estimated range of change, upper bound	15
Unrecognized tax Benefits, interest on income taxes expense	(2)	6	$ 5
Unrecognized tax benefits, interest on income taxes accrued	20	21
Other Liabilities
Income Tax Contingency [Line Items]
Total non-current deferred tax liabilities	(290)	$ (350)
Domestic Country
Income Tax Contingency [Line Items]
Net operating loss carryforwards	31
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Net operating loss carryforwards	676
Foreign Country
Income Tax Contingency [Line Items]
Net operating loss carryforwards	70
Q2 Solutions | Domestic Country
Income Tax Contingency [Line Items]
Income (loss) from continuing operations - domestic	171
Q2 Solutions | Foreign Country
Income Tax Contingency [Line Items]
Income (loss) from continuing operations - foreign	143
Q2 Solutions | Disposed of by Sale
Income Tax Contingency [Line Items]
Percent of ownership interest sold				40.00%
Deferred income tax expense (benefit)	72
Total	$ (55)