Cash, Cash Equivalents and Current Marketable Securities (Tables)

12 Months Ended

Dec. 30, 2018

Cash and Cash Equivalents [Abstract]

Cash and Cash Equivalent Composition

At the end of 2018 and 2017, cash, cash equivalents and current marketable securities were comprised of:

(Dollars in Millions)	2018
	Carrying Amount		Estimated Fair Value	Cash & Cash Equivalents		Current Marketable Securities
Cash	$	2,619	2,619	2,619		—
U.S. Reverse repurchase agreements	3,009		3,009	3,009		—
Other Reverse repurchase agreements	443		443	443		—
Money market funds	3,397		3,397	3,397		—
Time deposits(1)	485		485	485		—
Subtotal	$	9,953	9,953	9,953		—
Gov't Securities	$	9,474	9,474	8,144		1,330
Corporate debt securities	260		260	10		250
Subtotal available for sale(2)	$	9,734	9,734	8,154		1,580
Total cash, cash equivalents and current marketable securities				$	18,107	1,580

In 2018, the carrying amount was the same as the estimated fair value.

In 2017, the carrying amount was the same as the estimated fair value.

(Dollars in Millions)	2017
	Carrying Amount		Estimated Fair Value	Cash & Cash Equivalents		Current Marketable Securities
Cash	$	2,929	2,929	2,929		—
Other Sovereign Securities(1)	279		279	219		60
U.S. Reverse repurchase agreements	4,025		4,025	4,025		—
Corporate debt securities(1)	289		289	244		45
Money market funds	4,288		4,288	4,288		—
Time deposits(1)	1,176		1,176	1,175		1
Subtotal	$	12,986	12,986	12,880		106
Gov't Securities	$	4,864	4,864	4,833		31
Other Sovereign Securities	186		186	80		106
Corporate debt securities	260		260	31		229
Subtotal available for sale(2)	$	5,310	5,310	4,944		366
Total cash, cash equivalents and current marketable securities				$	17,824	472

⁽¹⁾ Held to maturity investments are reported at amortized cost and realized gains or losses are reported in earnings.

⁽²⁾ Available for sale debt securities are reported at fair value with unrealized gains and losses reported net of taxes in other comprehensive income.

Contractual Maturities of Available for Sale Securities

The contractual maturities of the available for sale debt securities at December 30, 2018 are as follows:

(Dollars in Millions)	Cost Basis		Fair Value
Due within one year	$	9,670	9,670
Due after one year through five years	64		64
Due after five years through ten years	—		—
Total debt securities	$	9,734	9,734