Long-Term Debt and Letters of Credit - Narrative (Details) - USD ($)				3 Months Ended
	Mar. 22, 2021	Mar. 17, 2021	Jan. 04, 2021	Apr. 04, 2021	Jul. 04, 2021	Mar. 04, 2021	Jan. 03, 2021
Line of Credit Facility [Line Items]
Debt extinguishment cost		$ 13,400,000
Senior notes
Line of Credit Facility [Line Items]
Debt called		$ 493,300,000
Debt face	$ 3,000,000,000.0
Credit facility
Line of Credit Facility [Line Items]
Debt face						$ 1,000,000,000.0
Maximum borrowing capacity						1,000,000,000.0
Additional borrowing capacity						$ 1,150,000,000
Credit facility | Revolving credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity					$ 1,150,000,000
Available borrowing capacity					743,500,000
Borrowings					125,000,000.0		$ 125,000,000.0
Credit facility | Letters of credit
Line of Credit Facility [Line Items]
Outstanding letters of credit					$ 281,500,000
0.65% Fixed Rate Senior Notes due April 2023 | Senior notes
Line of Credit Facility [Line Items]
Debt face	$ 300,000,000.0
Stated interest rate	0.65%				0.65%
Borrowings					$ 300,000,000.0		0
0.95% Fixed Rate Senior Notes due April 2024 | Senior notes
Line of Credit Facility [Line Items]
Debt face	$ 450,000,000.0
Stated interest rate	0.95%				0.95%
Redemption price percentage	100.00%
Borrowings					$ 450,000,000.0		0
1.60% Fixed Rate Senior Notes due April 2026 | Senior notes
Line of Credit Facility [Line Items]
Debt face	$ 450,000,000.0
Stated interest rate	1.60%				1.60%
Borrowings					$ 450,000,000.0		0
2.25% Fixed Rate Senior Notes due April 2028 | Senior notes
Line of Credit Facility [Line Items]
Debt face	$ 700,000,000.0
Stated interest rate	2.25%				2.25%
Borrowings					$ 700,000,000.0		0
2.75% Fixed Rate Senior Notes due April 2031 | Senior notes
Line of Credit Facility [Line Items]
Debt face	$ 1,100,000,000
Stated interest rate	2.75%				2.75%
Borrowings					$ 1,100,000,000.0		0
2.50% Fixed Rate Senior Notes due August 2030 | Senior notes
Line of Credit Facility [Line Items]
Stated interest rate					2.50%
Borrowings					$ 500,000,000.0		$ 0
Swedish Tax Authority letter of credit | Credit facility | Letters of credit
Line of Credit Facility [Line Items]
Outstanding letters of credit					260,000,000.0
FLIR
Line of Credit Facility [Line Items]
Interest and debt expense				$ 33,100,000
FLIR | Short term stand-by bridge facility | Bridge facility
Line of Credit Facility [Line Items]
Bridge facility	$ 4,500,000,000		$ 4,500,000,000
Interest expense			$ 17,200,000
FLIR | 2.50% Fixed Rate Senior Notes due August 2030 | Senior notes | Guarantee
Line of Credit Facility [Line Items]
Debt face					$ 500,000,000.0
Stated interest rate					2.50%