Guarantor Financial Information - Condensed Consolidated Statement of Cash Flows (Unaudited) (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Condensed Financial Statements Captions [Line Items]
Net cash provided by/(used in) operating activities	$ 596	$ 512
Investing activities:
Acquisition of subsidiaries and affiliates, net of cash acquired	(62)	(39)
Additions to property, plant and equipment and other assets	(58)	(66)
Additions to intangible assets	(284)	(305)
Proceeds from the sale of property, plant and equipment and other assets		4
Other investing activities	(18)	3
Net cash provided by/(used in) investing activities	(422)	(403)
Financing activities:
Net borrowings under revolving credit facility	190	204
Repayments of debt	(43)	(805)
Increase/(decrease) in other short-term borrowings	(1)	1
Proceeds from the issuance of debt, net of issuance costs		781
Cash dividends paid to shareholders	(373)	(370)
Repurchase of common stock		(70)
Activity Under Stock Plans		17
Activity from share-based compensation plans	(5)	17
Proceeds from employee stock purchase plan	3	4
Finance leases	(44)	(60)
Settlement of intercompany and other financing activities	(17)	(15)
Net cash provided by/(used in) financing activities	(290)	(313)
Effect of exchange-rate changes on cash and cash equivalents	(19)	(6)
Net increase/(decrease) in cash and cash equivalents	(135)	(210)
Cash and cash equivalents at beginning of period	524	656
Cash and cash equivalents at end of period	389	446
Parent
Condensed Financial Statements Captions [Line Items]
Net cash provided by/(used in) operating activities	(8)	(2)
Financing activities:
Cash dividends paid to shareholders	(373)	(370)
Repurchase of common stock		(70)
Activity Under Stock Plans		23
Proceeds from employee stock purchase plan	3	4
Settlement of intercompany and other financing activities	377	416
Net cash provided by/(used in) financing activities	7	3
Net increase/(decrease) in cash and cash equivalents	(1)	1
Cash and cash equivalents at beginning of period	3	2
Cash and cash equivalents at end of period	2	3
Issuers
Condensed Financial Statements Captions [Line Items]
Net cash provided by/(used in) operating activities	63	15
Financing activities:
Repayments of debt	(43)	(804)
Proceeds from the issuance of debt, net of issuance costs		781
Settlement of intercompany and other financing activities	(20)	8
Net cash provided by/(used in) financing activities	(63)	(15)
Cash and cash equivalents at beginning of period		1
Cash and cash equivalents at end of period		1
Guarantor
Condensed Financial Statements Captions [Line Items]
Net cash provided by/(used in) operating activities	257	257
Investing activities:
Acquisition of subsidiaries and affiliates, net of cash acquired	(11)	(11)
Additions to property, plant and equipment and other assets	(26)	(34)
Additions to intangible assets	(229)	(262)
Other investing activities	(18)	8
Net cash provided by/(used in) investing activities	(284)	(299)
Financing activities:
Net borrowings under revolving credit facility	190	204
Activity Under Stock Plans		(6)
Activity from share-based compensation plans	(5)
Finance leases	(40)	(55)
Settlement of intercompany and other financing activities	(178)	(173)
Net cash provided by/(used in) financing activities	(33)	(30)
Effect of exchange-rate changes on cash and cash equivalents		1
Net increase/(decrease) in cash and cash equivalents	(60)	(71)
Cash and cash equivalents at beginning of period	79	69
Cash and cash equivalents at end of period	19	(2)
Non-Guarantor
Condensed Financial Statements Captions [Line Items]
Net cash provided by/(used in) operating activities	284	242
Investing activities:
Acquisition of subsidiaries and affiliates, net of cash acquired	(51)	(28)
Additions to property, plant and equipment and other assets	(32)	(32)
Additions to intangible assets	(55)	(43)
Proceeds from the sale of property, plant and equipment and other assets		4
Other investing activities		(5)
Net cash provided by/(used in) investing activities	(138)	(104)
Financing activities:
Repayments of debt		(1)
Increase/(decrease) in other short-term borrowings	(1)	1
Finance leases	(4)	(5)
Settlement of intercompany and other financing activities	(196)	(266)
Net cash provided by/(used in) financing activities	(201)	(271)
Effect of exchange-rate changes on cash and cash equivalents	(19)	(7)
Net increase/(decrease) in cash and cash equivalents	(74)	(140)
Cash and cash equivalents at beginning of period	442	584
Cash and cash equivalents at end of period	$ 368	$ 444