Fair Value Measurements - Fair Value of Assets and Liabilities (Details) - USD ($)	Jul. 01, 2017	Dec. 31, 2016
Assets:
Available-for-sale securities:	$ 73,000,000	$ 56,000,000
Recurring basis | Estimate of Fair Value, Fair Value Disclosure | Government, agency, and government-sponsored enterprise obligations
Assets:
Available-for-sale securities:	56,000,000	51,000,000
Recurring basis | Estimate of Fair Value, Fair Value Disclosure | Corporate bonds
Assets:
Available-for-sale securities:	5,000,000	5,000,000
Recurring basis | Estimate of Fair Value, Fair Value Disclosure | Common stock
Assets:
Available-for-sale securities:	12,000,000
Recurring basis | Estimate of Fair Value, Fair Value Disclosure | Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	6,000,000	9,000,000
Liabilities:
Foreign exchange derivative contracts	6,000,000	32,000,000
Recurring basis | Level 1 | Government, agency, and government-sponsored enterprise obligations
Assets:
Available-for-sale securities:	0
Recurring basis | Level 1 | Corporate bonds
Assets:
Available-for-sale securities:	0
Recurring basis | Level 1 | Common stock
Assets:
Available-for-sale securities:	12,000,000
Recurring basis | Level 1 | Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	0
Liabilities:
Foreign exchange derivative contracts	0
Recurring basis | Level 2 | Government, agency, and government-sponsored enterprise obligations
Assets:
Available-for-sale securities:	56,000,000	51,000,000
Recurring basis | Level 2 | Corporate bonds
Assets:
Available-for-sale securities:	5,000,000	5,000,000
Recurring basis | Level 2 | Common stock
Assets:
Available-for-sale securities:	0
Recurring basis | Level 2 | Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	6,000,000	9,000,000
Liabilities:
Foreign exchange derivative contracts	6,000,000	32,000,000
Recurring basis | Level 3 | Government, agency, and government-sponsored enterprise obligations
Assets:
Available-for-sale securities:	0	0
Recurring basis | Level 3 | Corporate bonds
Assets:
Available-for-sale securities:	0	0
Recurring basis | Level 3 | Common stock
Assets:
Available-for-sale securities:	0
Recurring basis | Level 3 | Foreign exchange contracts
Assets:
Foreign exchange derivative contracts	0	0
Liabilities:
Foreign exchange derivative contracts	$ 0	$ 0