Information by Segment and Geographic Region - Geographic Area Information (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 31, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales	$ 2,377	$ 1,994	$ 1,860	$ 1,657	$ 2,254	$ 1,862	$ 1,760	$ 1,468	$ 7,887	$ 7,343	$ 6,380
Assets	10,642				9,409				10,642	9,409	8,208
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									5,006	4,361	3,725
Assets	6,749				5,441				6,749	5,441	5,138
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									692	638	558
Assets	2,460				2,284				2,460	2,284	2,329
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									270	303	251
Assets	1,040				1,014				1,040	1,014	97
Other, net of eliminations
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Sales									1,919	2,041	1,846
Assets	$ 393				$ 670				$ 393	$ 670	$ 644