Notes Payable, Other and Short-Term Borrowings - Carrying Amounts and Estimated Fair Values of Company's Senior Notes (Parenthetical) (Detail)	Sep. 30, 2019	Sep. 27, 2019	Dec. 31, 2018	Nov. 23, 2018	Sep. 05, 2018	Jul. 24, 2018	May 27, 2016
8.125% Senior Notes Due 2042 [Member]
Debt Instrument [Line Items]
Stated interest rate	8.125%		8.125%		8.125%
5.375% Senior Notes Due 2019 [Member]
Debt Instrument [Line Items]
Stated interest rate	5.375%		5.375%	5.375%
8.375% Senior Notes Due July 2018 [Member]
Debt Instrument [Line Items]
Stated interest rate	8.375%		8.375%
5.125% Senior Notes Due 2021 [Member]
Debt Instrument [Line Items]
Stated interest rate	5.125%		5.125%				5.125%
5.375% Senior Notes Due 2023 [Member]
Debt Instrument [Line Items]
Stated interest rate	5.375%		5.375%			5.375%
3.750% Senior Notes Due October 1, 2024 [Member]
Debt Instrument [Line Items]
Stated interest rate	3.75%	3.75%	3.75%