Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 2,312	$ 2,392
Accounts receivable, net of allowance for doubtful accounts: 2017 - $35; 2016 - $28	1,188	1,122
Prepaid and other current assets	153	157
Total current assets	3,653	3,671
Property and equipment, net of accumulated depreciation: 2017 - $541; 2016 - $537	259	271
Goodwill	2,992	2,949
Other intangible assets, net	1,421	1,506
Other non-current assets	389	272
Total assets	8,714	8,669
Current liabilities:
Accounts payable	170	183
Accrued compensation and contributions to retirement plans	373	409
Income taxes currently payable	77	95
Unearned revenue	1,424	1,509
Other current liabilities	364	415
Total current liabilities	2,408	2,611
Long-term debt	3,568	3,564
Pension and other postretirement benefits	258	274
Other non-current liabilities	426	439
Total liabilities	6,660	6,888
Redeemable noncontrolling interest (Note 8)	1,161	1,080
Commitments and contingencies (Note 12)
Equity:
Common stock	412	412
Additional paid-in capital	418	502
Retained income	10,066	9,210
Accumulated other comprehensive loss	(678)	(773)
Less: common stock in treasury	(9,379)	(8,701)
Total equity — controlling interests	839	650
Total equity — noncontrolling interests	54	51
Total equity	893	701
Total liabilities and equity	$ 8,714	$ 8,669

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.